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1. l- (+)-Lactic acid production by Lactobacillus rhamnosus B103 from dairy industry waste

Author:
Marcela Piassi Bernardo; Luciana Fontes Coelho; Daiane Cristina Sass; Jonas Contiero
Source:
Brazilian journal of microbiology 2016 v.47 no.3 pp. 640-646
ISSN:
1517-8382
Subject:
Lactobacillus rhamnosus; agribusiness; batch systems; biorefining; chemical industry; dairy industry; decolorization; feeding methods; fermentation; industrial wastes; manufacturing; medicine; microbiology; plastics; polylactic acid; reducing sugars; sutures; tissues; whey
Abstract:
... Lactic acid, which can be obtained through fermentation, is an interesting compound because it can be utilized in different fields, such as in the food, pharmaceutical and chemical industries as a bio-based molecule for bio-refinery. In addition, lactic acid has recently gained more interest due to the possibility of manufacturing poly(lactic acid), a green polymer that can replace petroleum-deriv ...
DOI:
10.1016/j.bjm.2015.12.001
PubMed:
27266630
PubMed Central:
PMC4927665

2. (Non-)Kolbe Chemistry Going with the Flow: The Continuous Electrolysis of Biogenic Acids

Author:
Nils Kurig; Jérôme Meyers; F. Joschka Holzhäuser; Stefan Palkovits; Regina Palkovits
Source:
ACS sustainable chemistry & engineering 2020 v.9 no.3 pp. 1229-1234
ISSN:
2168-0485
Subject:
batch systems; carbon; electrochemistry; electrolysis; electrosynthesis; energy; green chemistry; levulinic acid; three-dimensional printing
Abstract:
... Aiming at a circular carbon economy, electrosynthesis is gaining in importance. The conversion of bioderived materials using green electrons from renewable energy sources tackles challenges like fluctuating energy production and the integration into the already existing supply networks. Herein, we discuss concepts for transforming 150-year old Kolbe chemistry into flow processes. In a recirculatio ...
DOI:
10.1021/acssuschemeng.0c06982

3. 1,3-Propanediol production from glycerol in polyurethane foam containing anaerobic reactors: performance and biomass cultivation and retention

Author:
Shyrlane T. S. Veras; Patricia Rojas; Lourdinha Florencio; Mario T. Kato; José Luis Sanz
Source:
Environmental science and pollution research 2020 v.27 no.36 pp. 45662-45674
ISSN:
0944-1344
Subject:
Clostridium; anaerobic digesters; batch systems; biomass; fermentation; foams; glycerol; mixed culture; pollution; polyurethanes; research
Abstract:
... The use of batch and upflow anaerobic reactors filled with polyurethane foam for pure glycerol fermentation was evaluated. The best reactor operational conditions to obtain high yield and productivity of 1,3-propanediol (1,3-PDO) as the main product and the role of the polyurethane foam in the growth and retention of suspended and attached biomass in the reactors were investigated. In the experime ...
DOI:
10.1007/s11356-020-10404-z

4. 110th Anniversary: An Overview on Learning-Based Model Predictive Control for Batch Processes

Author:
Jingyi Lu; Zhixing Cao; Chunhui Zhao; Furong Gao
Source:
Industrial & engineering chemistry process design and development 2019 v.58 no.37 pp. 17164-17173
ISSN:
1520-5045
Subject:
batch systems; learning; markets; models; process design; product quality
Abstract:
... Batch processes repeatedly execute a given set of tasks over a finite duration, whose versatility and ability to adapt to rapidly changing markets make it prevalent in a multitude of industrial fields, particularly in the era of “smart manufacturing”. Nevertheless, frequent switching and wide-ranging facility operations incur significant nonlinearity and time variability in process dynamics, both ...
DOI:
10.1021/acs.iecr.9b02370

5. 120 Deglycerolization and separation of human red blood cells in a microfluidic focusing channel

Author:
John M. Lahmann; Adam Z. Higgins
Source:
Cryobiology 2013 v.67 no.3 pp. 432
ISSN:
0011-2240
Subject:
batch systems; cutting; erythrocytes; freeze-thaw cycles; glycerol; humans; image analysis; mass transfer; microscopy; osmotolerance; pumps; sanitizing; shelf life; solutes
Abstract:
... In current practice, removal of glycerol from frozen-thawed red blood cells (RBCs) is completed through a batch process that requires approximately 45min per unit of blood. This process demands that the need for frozen RBCs be anticipated, and any unused deglycerolized units of blood be disposed of after a short post-thaw shelf life. Previous research in our lab demonstrated that rapid glycerol re ...
DOI:
10.1016/j.cryobiol.2013.09.126

6. 2D Switched Model-Based Infinite Horizon LQ Fault-Tolerant Tracking Control for Batch Process

Author:
Weiping Luo; Limin Wang; Ridong Zhang; Furong Gao
Source:
Industrial & engineering chemistry process design and development 2019 v.58 no.22 pp. 9540-9551
ISSN:
1520-5045
Subject:
batch systems; chemistry; injection molding; models; process design
Abstract:
... For batch processes described by 2D switched system models, the paper comes up with an infinite horizon linear quadratic fault-tolerant tracking control (LQFTTC). First, the paper leads a new variable into the process model with time delay to convert it to a new model without time delay, after that, an equivalent extended 2D switched system model is established. Next, by introducing a quadratic pe ...
DOI:
10.1021/acs.iecr.9b00657

7. 2nd generation biomass derived glucose conversion to 5-hydroxymethylfurfural and levulinic acid catalyzed by ionic liquid and transition metal sulfate: Elucidation of kinetics and mechanism

Author:
Komal Kumar; Shailesh Pathak; Sreedevi Upadhyayula
Source:
Journal of cleaner production 2020 v.256 pp. 120292
ISSN:
0959-6526
Subject:
activation energy; batch systems; biomass; catalysts; catalytic activity; glucose; humin; hydroxymethylfurfural; ionic liquids; kinetics; levulinic acid; models; nickel; reaction mechanisms; recycling; renewable energy sources; sulfates; synergism; temperature; wastes
Abstract:
... The conversion of 2ⁿᵈ generation biomass to 5-HMF and LA is a promising route for the production of key platform chemicals and renewable fuels. This work reports a clean synthesis of levulinic acid (LA) and 5-hydroxymethyl furfural (5-HMF) from waste biomass derived glucose in aqueous phase using –SO₃H functionalized ionic liquid (IL) catalyst [IL-SO₃H][Cl] and nickel sulfate (NiSO₄.6H₂O) co-catal ...
DOI:
10.1016/j.jclepro.2020.120292

8. 3-Chloro-1,2-propanediol biodegradation by Ca-alginate immobilized Pseudomonas putida DSM 437 cells applying different processes: mass transfer effects

Author:
Aikaterini Konti; Diomi Mamma; Dimitios G. Hatzinikolaou; Dimitris Kekos
Source:
Bioprocess and biosystems engineering 2016 v.39 no.10 pp. 1597-1609
ISSN:
1615-7591
Subject:
Pseudomonas putida; batch systems; biodegradation; calcium alginate; continuous systems; heat transfer; mass transfer
Abstract:
... 3-Chloro-1,2-propanediol (3-CPD) biodegradation by Ca-alginate immobilized Pseudomonas putida cells was performed in batch system, continuous stirred tank reactor (CSTR), and packed-bed reactor (PBR). Batch system exhibited higher biodegradation rates and 3-CPD uptakes compared to CSTR and PBR. The two continuous systems (CSTR and PBR) when compared at 200 mg/L 3-CPD in the inlet exhibited the sam ...
DOI:
10.1007/s00449-016-1635-4

9. 3D-Printed High-Pressure-Resistant Immobilized Enzyme Microreactor (μIMER) for Protein Analysis

Author:
Tobias Rainer; Anna-Sophia Egger; Ricarda Zeindl; Martin Tollinger; Marcel Kwiatkowski; Thomas Müller
Source:
Analytical chemistry 2022 v.94 no.24 pp. 8580-8587
ISSN:
1520-6882
Subject:
analytical chemistry; batch systems; chemical bonding; cost effectiveness; cross-linking reagents; digestion; immobilized enzymes; microparticles; pepsin; peptides; polystyrenes; proteome; urethane
Abstract:
... Additive manufacturing (3D printing) has greatly revolutionized the way researchers approach certain technical challenges. Despite its outstanding print quality and resolution, stereolithography (SLA) printing is cost-effective and relatively accessible. However, applications involving mass spectrometry (MS) are few due to residual oligomers and additives leaching from SLA-printed devices that int ...
DOI:
10.1021/acs.analchem.1c05232

10. 5-HMF production from glucose using ion exchange resin and alumina as a dual catalyst in a biphasic system

Author:
Supakrit Pumrod; Amaraporn Kaewchada; Supacharee Roddecha; Attasak Jaree
Source:
RSC advances 2020 v.10 no.16 pp. 9492-9498
ISSN:
2046-2069
Subject:
aluminum oxide; batch systems; biofuels; catalysts; glucose; ion exchange resins; solvents; temperature
Abstract:
... 5-HMF is a platform chemical that can be used in many applications such as biofuels, monomers, industrial feed stocks, etc. In this work 5-HMF was synthesized from glucose in a biphasic system using a batch reactor. Aluminium oxide and ion exchange resin were used as catalysts in this system. The organic solvent and aqueous solvent were methyl isobutyl ketone (MIBK) and 1-methyl-2-pyrrolidinone (N ...
DOI:
10.1039/c9ra09997b

11. 5-Hydroxy-2-Methylfurfural from Sugar Beet Thick Juice: Kinetic and Modeling Studies

Author:
Ria M. Abdilla-Santes; Jozef G.M. Winkelman; Ilona van Zandvoort; Bert M. Weckhuysen; Pieter C.A. Bruijnincx; Edita Jurak; Peter J. Deuss; Hero J. Heeres
Source:
ACS sustainable chemistry & engineering 2021 v.9 no.7 pp. 2626-2638
ISSN:
2168-0485
Subject:
acid hydrolysis; batch systems; calcium; derivatization; fructose; green chemistry; juices; kinetics; magnesium; maleic acid; models; potassium; sodium; streams; sucrose; sugar beet; sugar industry; sulfates; sulfuric acid
Abstract:
... 5-Hydroxy-2-methylfurfural (HMF) has a high derivatization potential and is considered the sleeping giant of biobased platform chemicals. It is accessible by the acid hydrolysis of various carbohydrate-containing feeds, preferably those high in fructose content. We here report a detailed study on the use of thick juice, an intermediate sucrose (SUC)-rich stream in a sugar factory, and pure SUC for ...
DOI:
10.1021/acssuschemeng.0c06579

12. Abattoir Wastewater Treatment in Anaerobic Co-Digestion with Sugar Press Mud in Batch Reactor for Improved Biogas Yield

Author:
Beatrice N. Anyango; Simon M. Wandera; James M. Raude
Source:
Water 2022 v.14 no.16 pp. -
ISSN:
2073-4441
Subject:
anaerobic digestion; batch systems; biogas; electricity generation; energy recovery; greenhouse gases; hydrolysis; kinetics; logit analysis; methane; methane production; organic matter; slaughterhouses; sugars; wastewater; wastewater treatment; water
Abstract:
... Slaughterhouse wastewater (SHWW) has a great potential to generate biomethane energy when subjected to anaerobic digestion (AD). Nonetheless, the process is susceptible and prone to failure because of slow hydrolysis and the production of inhibitory compounds. Accordingly, to address this deficiency, anaerobic co-digestion (ACoD) is used to improve the treatment efficiency of the monodigestion of ...
DOI:
10.3390/w14162571

13. Ability of Ganoderma lucidum mycelial pellets to remove ammonia and organic matter from domestic wastewater

Author:
Z. M. Hanafiah; W. H. M. Wan Mohtar; H. A. Hasan; H. S. Jensen; A. Klaus; S. Sharil; W. A. A. Q. I. Wan-Mohtar
Source:
International journal of environmental science and technology 2022 v.19 no.8 pp. 7307-7320
ISSN:
1735-1472
Subject:
Ganoderma lucidum; agitation; ambient temperature; ammonia; ammonium nitrogen; batch systems; chemical oxygen demand; fabrics; inoculum; municipal wastewater; mycelium; organic matter
Abstract:
... In this study, we explored the ability of wild-Serbian Ganoderma lucidum mycelial pellets (GLMPs) in treating synthetic domestic wastewater in a batch reactor under various operating conditions. The GLMPs produce non-hazardous by-products, are environmentally sustainable and able to produce in mass bulk with consistent quality. Riding on the highly efficient of treatment of industrial (textile) wa ...
DOI:
10.1007/s13762-021-03633-3

14. Absorptive removal of Pb2+, Cu2+ and Ni2+ from the aqueous solution by using groundnut husk modified with Guar Gum (GG): Kinetic and thermodynamic studies

Author:
Rais Ahmad; Shaziya Haseeb
Source:
Groundwater for sustainable development 2015 v.1 no.1-2 pp. 41-49
ISSN:
2352-801X
Subject:
Fourier transform infrared spectroscopy; Gibbs free energy; X-ray diffraction; adsorbents; adsorption; aqueous solutions; batch systems; copper; endothermy; energy-dispersive X-ray analysis; enthalpy; groundwater; guar gum; kinetics; lead; metal ions; nickel; pH; peanut hulls; regression analysis; scanning electron microscopy; sorption isotherms; sustainable development; temperature
Abstract:
... In this study, the groundnut husk modified with Guar Gum (GG) is used for the removal of Pb²⁺, Cu²⁺ and Ni²⁺ from the aqueous solution. The maximum adsorption capacity for Pb²⁺, Cu²⁺ and Ni²⁺ is found to be in the order of 9.76mgg⁻¹, 9.26mgg⁻¹ and 6.74mgg⁻¹ respectively. The optimized adsorption parameters were: pH 5.0, equilibrium time 120min and adsorption temperature 298K for Pb²⁺, Cu²⁺ and Ni² ...
DOI:
10.1016/j.gsd.2015.11.001

15. Accelerated Material-Efficient Investigation of Switchable Hydrophilicity Solvents for Energy-Efficient Solvent Recovery

Author:
Suyong Han; Keshav Raghuvanshi; Milad Abolhasani
Source:
ACS sustainable chemistry & engineering 2020 v.8 no.8 pp. 3347-3356
ISSN:
2168-0485
Subject:
batch systems; carbon dioxide; chemical industry; distillation; energy efficiency; energy requirements; hydrophilicity; mass transfer; risk reduction; solvents; wastes
Abstract:
... In most chemical industries, solvent removal and recovery processes are heavily dependent on hazardous volatile solvents with energy-intensive distillation processes because of their ease of separation. An emerging promising alternative is implementing switchable solvents with on-demand and reversible switching of their physiochemical properties triggered by carbon dioxide (CO₂). Utilization and w ...
DOI:
10.1021/acssuschemeng.9b07304

16. Accelerated Synthesis of a Ni₂Cl₂(BTDD) Metal–Organic Framework in a Continuous Flow Reactor for Atmospheric Water Capture

Author:
Sujay Bagi; Ashley M. Wright; Julius Oppenheim; Mircea Dincă; Yuriy Román-Leshkov
Source:
ACS sustainable chemistry & engineering 2021 v.9 no.11 pp. 3996-4003
ISSN:
2168-0485
Subject:
batch systems; coordination polymers; crystallization; fluid mechanics; green chemistry; heat transfer; hydrochloric acid; methanol; models; relative humidity; solvents; sorption; surface area; temperature
Abstract:
... Atmospheric water capture (AWC) has tremendous potential to address the global shortage of clean drinking water. The Ni₂Cl₂(BTDD) metal–organic framework (MOF) has shown optimal water sorption performance under low relative humidity conditions, but its potentially high production costs, stemming in part from its lengthy multiday synthesis, has hindered widespread implementation. As with most tradi ...
DOI:
10.1021/acssuschemeng.0c07055

17. Accelerating anaerobic propionate degradation and studying microbial community using modified polyvinyl alcohol beads during anaerobic digestion

Author:
Sitthakarn Sitthi; Masashi Hatamoto; Takahiro Watari; Takashi Yamaguchi
Source:
Bioresource technology reports 2022 v.17 pp. 100907
ISSN:
2589-014X
Subject:
activated carbon; anaerobic digestion; batch systems; chemical oxygen demand; magnetite; methane; methane production; methanogens; microbial communities; polyvinyl alcohol; probability; propionic acid; sludge; tuff
Abstract:
... Modified polyvinyl alcohol beads (PVA) are synthesized by adding conductive materials such as activated carbon (AC), magnetite particles (MT), and green tuff (GT) for serving as potential advantages carriers on anaerobic digestion (AD). This study aimed to study the effect of modified PVA beads on AD performance and investigate the probability of DIET occurrence on syntrophic propionate degradatio ...
DOI:
10.1016/j.biteb.2021.100907

18. Accelerating batch processing of spatial raster analysis using GPU

Author:
Mathias Steinbach; Reinhard Hemmerling
Source:
Computers & geosciences 2012 v.45 no. pp. 212-220
ISSN:
0098-3004
Subject:
batch systems; computer software; computers; geographic information systems; raster data
Abstract:
... Batch processing of raster data performed by geographic information systems (GIS) is a time consuming procedure. Modern high performance GPUs are able to perform hundreds of arithmetical operations in parallel. These GPUs can help to reduce the computing time of such operations. In addition, most of the commonly used raster operations are I/O-bounded. Memory transfer between hard disk and RAM take ...
DOI:
10.1016/j.cageo.2011.11.012

19. Accumulation characteristics of soluble algal products (SAP) by a freshwater microalga Scenedesmus sp. LX1 during batch cultivation for biofuel production

Author:
Yin Yu; Hong-Ying Hu; Xin Li; Yin-Hu Wu; Xue Zhang; Sheng-Lan Jia
Source:
Bioresource technology 2012 v.110 no. pp. 184-189
ISSN:
0960-8524
Subject:
Scenedesmus; batch systems; biofuels; cell growth; freshwater; microalgae; nitrogen; nitrogen content
Abstract:
... Algae cultivation is the essential basis for microalgal biofuel production. Soluble algal products (SAP) are significant obstacle to large-scale, high-cell-density cultivation processes. SAP accumulation during batch cultivation of Scenedesmus sp. LX1 (a unique strain accumulating lipid substantially while growing fast under low-nutrient conditions) with different initial nitrogen concentrations ( ...
DOI:
10.1016/j.biortech.2011.11.023

20. Acetylation Treatment for the Batch Processing of Natural Fibers: Effects on Constituents, Tensile Properties and Surface Morphology of Selected Plant Stem Fibers

Author:
Isiaka Oluwole Oladele; Omokafe Seun Michael; Adeolu Adesoji Adediran; Oluwayomi Peter Balogun; Folorunso Ojo Ajagbe
Source:
Fibers 2020 v.8 no.12 pp. -
ISSN:
2079-6439
Subject:
Combretum; Dombeya; acetylation; ambient temperature; bananas; batch systems; behavior; cellulose; density; hemicellulose; plant fibers; tensile strength
Abstract:
... This work was on the comparative evaluation of the property effects obtainable when acetylation is applied to parts of selected agro fibers that are obtainable within common localities. The fibers were subjected to different concentrations of acetylation treatment at ambient temperature for 3 h. The physico-chemical, morphological, and tensile properties of the fibers were examined after the treat ...
DOI:
10.3390/fib8120073

21. Acetylcholinesterases from Leaf-Cutting ant Atta sexdens: Purification, Characterization, and Capillary Reactors for On-Flow Assays

Author:
Adriana M. Dos Santos; Ariele C. Moreira; Bianca Rebelo Lopes; Mariana F. Fracola; Fernando G. de Almeida; Odair C. Bueno; Quezia B. Cass; Dulce Helena F. Souza
Source:
Enzyme research 2019 v.2019 pp. -
ISSN:
2090-0414
Subject:
Atta sexdens; acetates; acetylcholine; acetylcholinesterase; ammonium; batch systems; choline; colorimetry; death; enzyme inhibition; hydrolysis; ion exchange chromatography; leaf-cutting ants; neurotransmitters; pH; phylogeny; sulfates; tandem mass spectrometry
Abstract:
... Acetylcholinesterase (AChE) is responsible for catalyzing the hydrolysis of the neurotransmitter acetylcholine (ACh) leading to acetate and choline (Ch) release. The inhibition of AChE produces a generalized synaptic collapse that can lead to insect death. Herein we report for the first time the isolation of two AChEs from Atta sexdens which were purified by sulphate ammonium precipitation followe ...
DOI:
10.1155/2019/6139863
PubMed:
31354985
PubMed Central:
PMC6633970

22. Achieving Partial Nitrification via Intermittent Aeration in SBR and Short-Term Effects of Different C/N Ratios on Reactor Performance and Microbial Community Structure

Author:
Zhengyao Zhou; Meixia Qi; Hongping Wang
Source:
Water 2020 v.12 no.12 pp. -
ISSN:
2073-4441
Subject:
Actinobacteria; Bacteroidetes; Chloroflexi; Nitrosomonas; aeration; ammonia; ammonium nitrogen; batch systems; chemical oxygen demand; community structure; microbial communities; nitrification; nitrites; oxidation; sludge; total nitrogen; wastewater treatment; water
Abstract:
... A sequencing batch reactor (SBR) with an intermittent aeration mode was established to achieve partial nitrification (PN) and the short-term effects of C/N ratios were investigated. Stable nitrite accumulation was achieved after 107 cycles, about 56d, with the average ammonia nitrogen removal efficiency (ARE) and nitrite accumulation rate (NAR) of 96.92% and 82.49%, respectively. When the C/N rati ...
DOI:
10.3390/w12123485

23. Achieving enhanced biological phosphorus removal utilizing waste activated sludge as sole carbon source and simultaneous sludge reduction in sequencing batch reactor

Author:
Zhiwei Fan; Wei Zeng; Qingan Meng; Hong Liu; Hongjun Liu; Yongzhen Peng
Source:
Science of the total environment 2021 v.799 pp. 149291
ISSN:
0048-9697
Subject:
DNA; Tetrasphaera; activated sludge; batch systems; biodegradability; byproducts; carbohydrates; carbon; cell death; environment; fermentation; flow cytometry; operating costs; particle size; phosphorus; polymers; tryptophan; tyrosine; wastewater treatment
Abstract:
... Achieving enhanced biological phosphorus removal dominated by Tetrasphaera utilizing waste activated sludge (WAS) as carbon source could solve the problems of insufficient carbon source and excessive discharge of WAS in biological phosphorus removal. Up to now, the sludge reduction ability of Tetrasphaera remained largely unknown. Furthermore, the difference between traditional sludge fermentation ...
DOI:
10.1016/j.scitotenv.2021.149291

24. Achieving nitratation repression in an SBR at mainstream conditions through inorganic carbon limitation

Author:
Tiago.R. V. Akaboci; Maël Ruscalleda; M. Dolors Balaguer; Jesús Colprim
Source:
International biodeterioration & biodegradation 2020 v.147 pp. 104865
ISSN:
0964-8305
Subject:
aeration; ammonium; batch systems; biodegradation; inorganic carbon; liquids; microbial activity; nitrification; nitrites; nitrogen; nitrous acid; oxidation; oxygen; pH; temperature
Abstract:
... This study investigated the effects of the influent inorganic carbon (IC) availability on nitrifying microbial activity of a sequencing batch reactor (SBR) operated for partial-nitritation (PN) at mainstream conditions (temperature of 15 °C and low influent N concentration). By operating the reactor with influent ammonium to inorganic carbon centration ratio (NH₄⁺-N/IC) of 0.40 ± 0.01 mg N·mg C⁻¹, ...
DOI:
10.1016/j.ibiod.2019.104865

25. Achieving nitrogen and phosphorus removal at low C/N ratios without aeration through a novel phototrophic process

Author:
V.C.F. Carvalho; M. Kessler; J.C. Fradinho; A. Oehmen; M.A.M. Reis
Source:
Science of the total environment 2021 v.793 pp. 148501
ISSN:
0048-9697
Subject:
aeration; ammonia; batch systems; carbon; environment; microbial culture; municipal wastewater; nitrates; nitrogen; operating costs; oxygen; phosphorus; photosynthesis; total nitrogen; wastewater treatment
Abstract:
... Conventional wastewater treatment technologies for biological nutrient removal (BNR) are highly dependent on aeration for oxygen supply, which represents a major operational cost of the process. Recently, phototrophic enhanced biological phosphorus removal (photo-EBPR) has been suggested as an alternative system for phosphorus removal, based on a consortium of photosynthetic microorganisms and che ...
DOI:
10.1016/j.scitotenv.2021.148501

26. Achieving single‐stage partial nitritation and anammox (PN/A) using a submerged dynamic membrane sequencing batch reactor (DM‐SBR)

Author:
Xiaohuan Yang; Ziwen Jia; Jingwei Fu; Qian Li; Rong Chen
Source:
Water environment research 2021 v.93 no.5 pp. 762-773
ISSN:
1061-4303
Subject:
Nitrosomonas; anaerobic ammonium oxidation; batch systems; biofilm; biomass; dissolved oxygen; environment; nitrogen; research; turbidity; water
Abstract:
... Single‐stage partial nitration and anammox (PN/A) process was achieved in a sequencing batch reactor (SBR) using a submerged dynamic membrane (DM) in this study. The reactor was stably operated for 200 days, and the nitrogen removal efficiency (NRE) was sustained at 70.3 ± 7.2% at a nitrogen loading rate (NLR) ranging from 0.1 to 0.3 kgNm⁻³ day⁻¹ with a hydraulic retention time (HRT) of 24 hr. Whe ...
DOI:
10.1002/wer.1468

27. Achieving stable two-stage mainstream partial-nitrification/anammox (PN/A) operation via intermittent aeration

Author:
Yongzhi Chen; Zhichao Zhao; Hong Liu; Yanhong Ma; Fangjiao An; Jianming Huang; Zhaowei Shao
Source:
Chemosphere 2020 v.245 pp. 125650
ISSN:
0045-6535
Subject:
aeration; ammonium; anaerobic ammonium oxidation; batch systems; municipal wastewater; nitrites; nitrogen; oxygen; pollutants; sludge
Abstract:
... The mainstream anammox process has attracted extensive attention recently. Compared to single-stage partial-nitrification/anammox (PN/A) system, two-stage PN/A process was more advantageous for achieving mainstream anammox. However, complex control strategy in partial-nitrification reactor (N-SBR) might not be feasible in practical application. The aim of this study was to provide an easy operatio ...
DOI:
10.1016/j.chemosphere.2019.125650

28. Acid Orange 7 degradation using methane as the sole carbon source and electron donor

Author:
Yanan Bai; Xiuning Wang; Fang Zhang; Raymond Jianxiong Zeng
Source:
Frontiers of environmental science & engineering 2022 v.16 no.3 pp. 34
ISSN:
2095-2201
Subject:
Phenylobacterium; Pseudomonas; acid orange 7; batch systems; carbon; membrane bioreactors; methane; microbial communities; oxidation; textile industry; wastewater
Abstract:
... Azo dyes are widely applied in the textile industry but are not entirely consumed during the dyeing process and can thus be discharged to the environment in wastewater. However, azo dyes can be degraded using various electron donors, and in this paper, Acid Orange 7 (AO7) degradation performance is investigated using methane (CH₄) as the sole electron donor. Methane has multiple sources and is rea ...
DOI:
10.1007/s11783-021-1468-5

29. Acid Water Neutralization Using Microbial Fuel Cells: An Alternative for Acid Mine Drainage Treatment

Author:
Eduardo Leiva; Enzo Leiva-Aravena; Ignacio Vargas
Source:
Water 2016 v.8 no.11 pp. -
ISSN:
2073-4441
Subject:
acid mine drainage; adsorption; adverse effects; batch systems; biofilm; bioremediation; cost effectiveness; groundwater; heavy metals; microbial fuel cells; neutralization; pH; salts; toxicity; water treatment
Abstract:
... Acid mine drainage (AMD) is a complex environmental problem, which has adverse effects on surface and ground waters due to low pH, high toxic metals, and dissolved salts. New bioremediation approach based on microbial fuel cells (MFC) can be a novel and sustainable alternative for AMD treatment. We studied the potential of MFC for acidic synthetic water treatment through pH neutralization in batch ...
DOI:
10.3390/w8110536

30. Acid precipitation followed by microalgae (Chlorella vulgaris) cultivation as a new approach for poultry slaughterhouse wastewater treatment

Author:
Ruly Terán Hilares; Kiara A. Garcia Bustos; Fabio P. Sanchez Vera; Gilberto J. Colina Andrade; David A. Pacheco Tanaka
Source:
Bioresource technology 2021 v.335 pp. 125284
ISSN:
0960-8524
Subject:
Chlorella vulgaris; batch systems; biomass; biorefining; chemical oxygen demand; microalgae; organic matter; pH; photobioreactors; poultry; slaughterhouses; sludge; wastewater; wastewater treatment
Abstract:
... Poultry slaughterhouse wastewater (PSW) contains high organic matter and nutrients requiring thus a special treatment before its final disposal. In this work, acid precipitation (H₂SO₄) followed by microalgae “Chlorella vulgaris” cultivation both in batch and continuous processes was studied as an alternative method for PSW treatment. By reducing the pH value of PSW from 6 to 7 to 4, about 80% of ...
DOI:
10.1016/j.biortech.2021.125284

31. Acidification due to microbial dechlorination near a trichloroethene DNAPL is overcome with pH buffer or formate as electron donor: Experimental demonstration in diffusion-cells

Author:
Jo Philips; Nele Maes; Dirk Springael; Erik Smolders
Source:
Journal of contaminant hydrology 2013 v.147 pp. 25-33
ISSN:
0169-7722
Subject:
acidification; batch systems; buffering capacity; buffers; dechlorination; dense nonaqueous phase liquids; electrons; pH
Abstract:
... Acidification due to microbial dechlorination of trichloroethene (TCE) can limit the bio-enhanced dissolution of TCE dense non-aqueous phase liquid (DNAPL). This study related the dissolution enhancement of a TCE DNAPL to the pH buffer capacity of the medium and the type of electron donor used. In batch systems, dechlorination was optimal at pH7.1–7.5, but was completely inhibited below pH6.2. In ...
DOI:
10.1016/j.jconhyd.2013.02.002
PubMed:
23500838

32. Acidogenic sequencing batch reactor start-up procedures for induction of 2,4,6-trichlorophenol dechlorination

Author:
Mun, C.H.; Ng, W.J.; He, J.
Source:
Water research 2008 v.42 no.6-7 pp. 1675-1683
ISSN:
0043-1354
Subject:
chlorophenols; wastewater treatment; bioreactors; batch systems; dechlorination; pH; sucrose; microbial activity; restriction fragment length polymorphism; biodegradation
DOI:
10.1016/j.watres.2007.10.019

33. Acifluorfen Sorption, Degradation, and Mobility in a Mississippi Delta Soil

Author:
L. A. Gaston; M. A. Locke
Source:
Soil Science Society of America journal 2000 v.64 no.1 pp. 112-121
ISSN:
0361-5995
Subject:
acifluorfen; aeration; batch systems; benzoic acids; bromine; canopy; carbon 14; conventional tillage; delta soils; groundwater contamination; kinetics; mineralization; no-tillage; postemergent weed control; prediction; river deltas; silty clay loam soils; sorption; sorption isotherms; surface water; unsaturated flow
Abstract:
... Potential surface water and groundwater contaminants include herbicides that are applied postemergence. Although applied to the plant canopy, a portion of any application reaches the soil either directly or via subsequent foliar washoff. This study examined sorption, degradation, and mobility of the postemergence herbicide acifluorfen (5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoic acid) i ...
DOI:
10.2136/sssaj2000.641112x

34. Acrylic acid grafted cellulosic Luffa cylindrical fiber for the removal of dye and metal ions

Author:
Vinod Kumar Gupta; Shilpi Agarwal; Prerna Singh; Deepak Pathania
Source:
Carbohydrate polymers 2013 v.98 no.1 pp. 1214-1221
ISSN:
0144-8617
Subject:
Fourier transform infrared spectroscopy; Luffa; acrylic acid; adsorbents; adsorption; batch systems; cellulosic fibers; correlation; magnesium; metal ions; methylene blue; nickel; pH; sorption isotherms; temperature; thermal properties; zinc
Abstract:
... Acrylic acid grafted cellulosic Luffa cylindrical fiber was utilized for the removal of methylene blue and metal ions from the water system using batch process. The grafted sample used was found to demonstrate a maximum grafting efficiency of 90.8% under concentrations of 0.432×10−3mol/L, temperature of 35°C, time of 60min and pH of 7.0 respectively. The remarkable improvement in thermal propertie ...
DOI:
10.1016/j.carbpol.2013.07.019

35. Activated Sludge and other Aerobic Suspended Culture Processes

Author:
Chunying Li; Yuhua Zhang; Chein‐Chi Chang; Dong Wei; Li Wei
Source:
Water environment research 2017 v.89 no.10 pp. 1029-1046
ISSN:
1061-4303
Subject:
activated sludge; adsorption; agricultural wastes; anaerobic ammonium oxidation; batch systems; biodegradation; bioenergy; drugs; environment; food waste; membrane bioreactors; microalgae; municipal solid waste; nutrition; pollutants; pollution control; population dynamics; research; systems engineering; upflow anaerobic sludge blanket reactor; water
Abstract:
... This is a literature review for the year 2016 regarding to activated sludge in upflow anaerobic sludge blanket, sequencing batch reactor and membrane bioreactor. This article reviews process modeling and kinetic, population dynamic, pollution control, and system design and operation. Compared to past reviews, several topics show increasing concerns in 2016, like anammox process. It refers to the a ...
DOI:
10.2175/106143017X15023776270223

36. Activated carbon catalyst from agricultural waste and their impact on esterification reaction

Author:
Ruchi Lamba
Source:
Journal of Biofuels 2022 v.13 no.1 pp. 1-10
ISSN:
0976-4763
Subject:
Populus; activated carbon; agricultural wastes; batch systems; biodiesel; catalysts; charcoal; decanoic acid; esterification; temperature; trees; wood
Abstract:
... The requirements of solid heterogeneous catalyst are always needed for the synthesis of biodiesel. New environment friendly and cheaper alternatives of solid catalyst are always on demand. Activated charcoal may play a good role in this field and fulfill all criteria of requirement. In this article, we have reported synthesis of cheap charcoal catalyst from wood of poplar tree and sesame. Function ...
DOI:
10.5958/0976-4763.2022.00001.0

37. Activated sludge denitrification in marine recirculating aquaculture system effluent using external and internal carbon sources

Author:
Carlos O. Letelier-Gordo; Xiaoyu Huang; Sanni L. Aalto; Per Bovbjerg Pedersen
Source:
Aquacultural engineering 2020 v.90 pp. 102096
ISSN:
0144-8609
Subject:
acetates; activated sludge; ammonium nitrogen; aquacultural engineering; area; batch systems; biomass; carbon; cost effectiveness; denitrification; effluents; environmental law; ethanol; fish; nitrates; nitrites; nitrogen; nutrients; organic wastes; propionic acid; recirculating aquaculture systems; sulfides; surface water; sustainable development; volume; Baltic Sea; Europe
Abstract:
... Stringent environmental legislation in Europe, especially in the Baltic Sea area, limits the discharge of nutrients to natural water bodies, limiting the aquaculture production in the region. Therefore, cost-efficient end-of-pipe treatment technologies to reduce nitrogen (N) discharge are required for the sustainable growth of marine land-based RAS. The following study examined the potential of fe ...
DOI:
10.1016/j.aquaeng.2020.102096

38. Active biomass estimation based on ASM1 and on-line OUR measurements for partial nitrification processes in sequencing batch reactors

Author:
Franklin Lindow; Carlos Muñoz; Francisco Jaramillo; Robert H. Bishop; José B. Proal-Nájera; Christian Antileo
Source:
Journal of environmental management 2020 v.273 pp. 111150
ISSN:
0301-4797
Subject:
batch systems; biomass; decision making; environmental management; nitrification; nitrites; oxygen; pH; prediction; sludge
Abstract:
... The main challenge for partial nitrification is to reach stable nitrite accumulation, which strongly depends on the nitrite-oxidizing bacteria (NOB) growth in the reactor. The on-line estimation of active biomass may enhance the decision-making process to maintain a high nitrite accumulation in the reactor. In this work, we propose an active biomass estimator based on ASM1 and on-line oxygen uptak ...
DOI:
10.1016/j.jenvman.2020.111150

39. Acute effect of benzo[a]anthracene on the biodegradation of peptone under aerobic conditions

Author:
Serden Başak; Emine Ubay Çokgör; Güçlü Insel; Derin Orhon
Source:
Environmental science and pollution research international 2012 v.19 no.8 pp. 3412-3420
ISSN:
0944-1344
Subject:
acute effects; anthracenes; batch systems; biodegradation; biomass; chemical oxygen demand; hydrolysis; meat extracts; models; oxygen; peptones; polyhydroxyalkanoates; research; sludge; sowing
Abstract:
... BACKGROUND: This study investigated the acute effect of benzo[a]anthracene, a significant compound among polycyclic aromatic hydrocarbons, on the biodegradation of a synthetic organic substrate—a peptone/meat extract mixture—under aerobic conditions. METHODS: A laboratory-scale sequencing batch reactor was sustained at steady state at a sludge age of 10 days with substrate feeding. Inhibition test ...
DOI:
10.1007/s11356-012-0866-4

40. Adaptation of anammox bacteria to low temperature via gradual acclimation and cold shocks: Distinctions in protein expression, membrane composition and activities

Author:
Kouba V; Vejmelkova D; Zwolsman E; Hurkova K; Navratilova K; Laureni M; Vodickova P; Podzimek T; Hajslova J; Pabst M; van Loosdrecht MCM; Bartacek J; Lipovova P; Weissbrodt DG
Source:
Water research 2022 v.209 pp. 117822
ISSN:
0043-1354
Subject:
acclimation; anaerobic ammonium oxidation; batch systems; biochemical pathways; biomass; cold; cold stress; denitrification; nitrogen; plankton; protein synthesis; proteomics; research; sewage; temperature; water
Abstract:
... Anammox bacteria enable efficient removal of nitrogen from sewage in processes involving partial nitritation and anammox (PN/A) or nitrification, partial denitrification, and anammox (N-PdN/A). In mild climates, anammox bacteria must be adapted to ≤15 °C, typically by gradual temperature decrease; however, this takes months or years. To reduce the time necessary for the adaptation, an unconvention ...
DOI:
10.1016/j.watres.2021.117822

41. Adaptation of nitrifying community in activated sludge to free ammonia inhibition and inactivation

Author:
Siqi Li; Haoran Duan; Yizhen Zhang; Xia Huang; Zhiguo Yuan; Yanchen Liu; Min Zheng
Source:
Science of the total environment 2020 v.728 pp. 138713
ISSN:
0048-9697
Subject:
Nitrobacter; Nitrosomonas; activated sludge; ammonia; ammonium nitrogen; batch systems; inoculum; microbial communities; municipal wastewater; nitrification; nitrifying bacteria; nitrites; nitrogen; nitrogen-fixing bacteria
Abstract:
... Sludge treatment using free ammonia (FA) is an innovative approach that was recently reported effective achieving stable mainstream nitrogen removal via the nitrite pathway. This study aims to investigate the adaptation of nitrifying community and the response of nitrification performance to high-level of FA exposure under real wastewater conditions. Two parallel lab-scale sequencing batch reactor ...
DOI:
10.1016/j.scitotenv.2020.138713

42. Adaptive Model Predictive Batch Process Monitoring and Control

Author:
Masoud Kheradmandi; Prashant Mhaskar
Source:
Industrial & engineering chemistry process design and development 2018 v.57 no.43 pp. 14628-14636
ISSN:
1520-5045
Subject:
arc furnaces; batch systems; model validation; models; prediction; process design; process monitoring
Abstract:
... The present work addresses the problem of loss of model validity in batch process control via online monitoring and adaptation based model predictive control. To this end, a state space subspace-based model identification method suitable for batch processes is utilized and then a model predictive controller is designed. To monitor model performance, a model validity index is developed for batch pr ...
DOI:
10.1021/acs.iecr.8b02738

43. Adaptive Soft Sensor Development Based on Online Ensemble Gaussian Process Regression for Nonlinear Time-Varying Batch Processes

Author:
Jin Huaiping; Chen Xiangguang; Wang Li; Yang Kai; Wu Lei
Source:
Industrial & Engineering Chemistry Research 2015 v.54 no.30 pp. 7320-7345
ISSN:
1520-5045
Subject:
Bayesian theory; batch systems; chemistry; chlortetracycline; engineering; fermentation; models; penicillins; prediction; probability analysis; uncertainty; variance
Abstract:
... Traditional soft sensors may be ill-suited for batch processes because they cannot efficiently handle process nonlinearity and/or time-varying changes as well as provide the prediction uncertainty. Therefore, a novel adaptive soft sensor, referred to as online ensemble Gaussian process regression (OEGPR), is proposed for nonlinear time-varying batch processes. The batch process is first divided in ...
DOI:
10.1021/acs.iecr.5b01495

44. Additive Manufacturing of Catalytically Active Living Materials

Author:
Abhijit Saha; Trevor G. Johnston; Ryan T. Shafranek; Cassandra J. Goodman; Jesse G. Zalatan; Duane W. Storti; Mark A. Ganter; Alshakim Nelson
Source:
ACS applied materials & interfaces 2018 v.10 no.16 pp. 13373-13380
ISSN:
1944-8252
Subject:
batch systems; continuous fermentation; ethanol; genetically engineered microorganisms; glucose; hydrogels; immobilized cells; manufacturing; polymers; temperature; yeasts
Abstract:
... Living materials, which are composites of living cells residing in a polymeric matrix, are designed to utilize the innate functionalities of the cells to address a broad range of applications such as fermentation and biosensing. Herein, we demonstrate the additive manufacturing of catalytically active living materials (AMCALM) for continuous fermentation. A multi-stimuli-responsive yeast-laden hyd ...
DOI:
10.1021/acsami.8b02719

45. Addressing case specific biogas plant tasks: Industry oriented methane yields derived from 5L Automatic Methane Potential Test Systems in batch or semi-continuous tests using realistic inocula, substrate particle sizes and organic loading

Author:
Sabina Kolbl; Attila Paloczi; Jože Panjan; Blaž Stres
Source:
Bioresource technology 2014 v.153 pp. 180-188
ISSN:
0960-8524
Subject:
batch systems; biogas; decision making; equipment; hydrolysis; inoculum; laboratory experimentation; methane; methane production; particle size
Abstract:
... The primary aim of the study was to develop and validate an in-house upscale of Automatic Methane Potential Test System II for studying real-time inocula and real-scale substrates in batch, codigestion and enzyme enhanced hydrolysis experiments, in addition to semi-continuous operation of the developed equipment and experiments testing inoculum functional quality. The successful upscale to 5L enab ...
DOI:
10.1016/j.biortech.2013.12.010

46. Adenovirus purification by two-column, size-exclusion, simulated countercurrent chromatography

Author:
Piergiuseppe Nestola; Ricardo J.S. Silva; Cristina Peixoto; Paula M. Alves; Manuel J.T. Carrondo; José P.B. Mota
Source:
Journal of chromatography 2014 v.1347 pp. 111-121
ISSN:
0021-9673
Subject:
Adenoviridae; DNA; batch systems; countercurrent chromatography; gel chromatography; serotypes; viruses
Abstract:
... Adenovirus serotype 5 (Ad5) was successfully separated by size-exclusion chromatography (SEC) using a simple, yet efficient, two-column, quasi-continuous, simulated moving-bed process operated in an open-loop configuration. The operating cycle is divided into two identical half-cycles, each of them consisting of the following sequence of sub-steps: (i) elution of the upstream column and direction ...
DOI:
10.1016/j.chroma.2014.04.079

47. Adsorption Effects on Kinetics of Aldicarb Degradation Equilibrium Model and Application to Incubation and Transport Experiments

Author:
Lei Guo; Robert J. Wagenet; William A. Jury
Source:
Soil Science Society of America journal 1999 v.63 no.6 pp. 1637-1644
ISSN:
0361-5995
Subject:
adsorption; aldicarb; batch systems; leaching; models; soil; soil amendments; soil solution
Abstract:
... The assumption of equilibrium adsorption was applied to both batch incubation and soil column leaching experiments to estimate degradation rate constants of the pesticide aldicarb [2-methyl-2-(methylthio) propionaldehyde o-(methylcarbamoyl) oxim] in the liquid (μₗ) and sorbed (μₛ) phases. The estimation was based on the observed K d–μ relationship yielded in a soil amended with various amounts of ...
DOI:
10.2136/sssaj1999.6361637x

48. Adsorption Equilibrium, Kinetics and Thermodynamics of α-Amylase on Poly(DVB-VIM)-Cu+2 Magnetic Metal-Chelate Affinity Sorbent

Author:
Bilgen Osman; Ali Kara; Emel Demirbel; Senay Kök; Necati Beşirli
Source:
Applied biochemistry and biotechnology 2012 v.168 no.2 pp. 279-294
ISSN:
0273-2289
Subject:
proteins; gelling properties; batch systems; dynamic testing; models; scanning electron microscopes; entropy; electron paramagnetic resonance spectroscopy; pH; Gibbs free energy; temperature; metal ions; desorption; adsorption
Abstract:
... Designing an immobilised metal ion affinity process on large-scale demands that a thorough understanding be developed regarding the adsorption behaviour of proteins on metal-loaded gels and the characteristic adsorption parameters to be evaluated. In view of this requirement, interaction of α-amylase as a model protein with newly synthesised magnetic-poly(divinylbenzene-1-vinylimidazole) [m-poly( ...
DOI:
10.1007/s12010-012-9771-z

49. Adsorption and Desorption of Atrazine, Deethylatrazine, and Hydroxyatrazine by Soil Components

Author:
C. Moreau-Kervévan; C. Mouvet
Source:
Journal of environmental quality 1998 v.27 no.1 pp. 46-53
ISSN:
0047-2425
Subject:
adsorption; atrazine; batch systems; desorption; energy; ferrihydrite; goethite; humic acids; hysteresis; iron oxides; kaolinite; smectite; soil; sorption isotherms
Abstract:
... We studied the behavior of atrazine (AT), deethylatrazinc (DEA), and hydroxyatrazinc (HyA) in contact with humic acid, kaolinite, smectite, goethite, and ferrihydrite through adsorption kinetics and isotherms, and desorption isotherms, in laboratory batch systems. The initial triazine concentrations in solution ranged from 0.001 to 1 mg L⁻¹. The adsorption of the three triazines by each component ...
DOI:
10.2134/jeq1998.00472425002700010008x

50. Adsorption and Removal of Acid Red 3R from Aqueous Solution Using Flocculent Humic Acid Isolated from Lignite

Author:
Duanping Xu; Changjian Gu; Xiao Chen
Source:
Procedia Environmental Sciences 2013 v.18 pp. 127-134
ISSN:
1878-0296
Subject:
adsorbents; adsorption; aqueous solutions; batch systems; humic acids; hydrogen bonding; ionic strength; lignite; models; regression analysis; sodium chloride; sorption isotherms; van der Waals forces
Abstract:
... Humic acid (HA) was isolated from lignite. Flocculent HA was made and used to adsorb and remove dye acid red 3R from aqueous solution. The adsorption experiments were carried out in a batch process to observe the effect of various parameters such as contact time, dose of flocculent HA, ionic strength (NaCl) as well as adsorption kinetics and isotherm. Results showed that adsorption of acid red 3R ...
DOI:
10.1016/j.proenv.2013.04.017

51. Adsorption and degradation of four acidic herbicides in soils from southern Spain

Author:
Villaverde, Jaime; Kah, Melanie; Brown, Colin D.
Source:
Pest management science 2008 v.64 no.7 pp. 703-710
ISSN:
1526-498X
Subject:
adsorption; degradation; acidity; herbicides; soil analysis; soil pollution; environmental quality; organic matter; clay soils; batch systems; Spain
Abstract:
... BACKGROUND: Pesticide degradation and adsorption in soils are key processes determining whether pesticide use will have any impact on environmental quality. Pesticide degradation in soil generally results in a reduction in toxicity, but some pesticides have breakdown products that are more toxic than the parent compound. Adsorption to soil particles ensures that herbicide is retained in the place ...
DOI:
10.1002/ps.1545
PubMed:
18283714

52. Adsorption and oxidation of 3-nitro-1,2,4-triazole-5-one (NTO) and its transformation product (3-amino-1,2,4-triazole-5-one, ATO) at ferrihydrite and birnessite surfaces

Author:
Raju Khatiwada; Leif Abrell; Guangbin Li; Robert A. Root; Reyes Sierra-Alvarez; James A. Field; Jon Chorover
Source:
Environmental pollution 2018 v.240 pp. 200-208
ISSN:
0269-7491
Subject:
adsorption; batch systems; biotransformation; birnessite; carbon dioxide; dissolved oxygen; environmental fate; explosives; ferrihydrite; groundwater; high performance liquid chromatography; mass spectrometry; microsatellite repeats; oxidation; pH; solubility; urea
Abstract:
... The emerging insensitive munitions compound (IMC) 3-nitro-1,2,4-triazole-5-one (NTO) is currently being used to replace conventional explosives such as 1,3,5-trinitro-1,3,5-triazacyclohexane (RDX), but the environmental fate of this increasingly widespread IMC remains poorly understood. Upon release from unexploded solid phase ordinances, NTO exhibits high aqueous solubility and, hence, potential ...
DOI:
10.1016/j.envpol.2018.04.034

53. Adsorption and separation of immunoglobulins by novel affinity core–shell beads decorated with Protein L and l-histidine

Author:
Gulay Bayramoglu; V. Cengiz Ozalp; M. Yakup Arica
Source:
Journal of Chromatography B 2013 v.936 pp. 1-9
ISSN:
1570-0232
Subject:
adsorption; aqueous solutions; batch systems; blood serum; high performance liquid chromatography; histidine; humans; immunoglobulins; ligands; pH; polymerization
Abstract:
... A novel core shell beaded chromatographic materials was prepared by grafting of glycidyl methacrylate (GMA) on to the surface of poly(hydoxypropyl methacrylate/ethyleneglycol dimethacrylate), p(HPMA/EGDMA) beads via surface-initiated atom transfer radical polymerization (SI-ATRP). For grafting GMA, p(HPMA/EGDMA) beads were first modified with an ATRP initiator. A reaction with 2-bromo-2-methylprop ...
DOI:
10.1016/j.jchromb.2013.07.025

54. Adsorption behavior of Reactive Blue 4, a tri-azine dye on dry cells of Rhizopus oryzae in a batch system

Author:
Mukulika Bagchi; Lalitagauri Ray
Source:
Chemical speciation and bioavailability 2015 v.27 no.3 pp. 112-120
ISSN:
0954-2299
Subject:
Fourier transform infrared spectroscopy; Rhizopus oryzae; adsorption; aqueous solutions; batch systems; biomass; dyes; models; moieties; pH; pollution control; sodium hydroxide; sorption isotherms; spectral analysis; temperature
Abstract:
... The adsorpion behavior of Reactive Blue 4, a tri-azine dye, on dry Rhizopus oryzae biomass (ROB) has been investigated in aqueous solution with special reference to physicochemical parameters associated with the adsorption process. Adsorption of dye on the biomass is found to be a function of solution pH (optimum 3.0), while temperature has no significant effect. Adsorption rate of biomass is very ...
DOI:
10.1080/09542299.2015.1088802

55. Adsorption behaviours of Th(IV) and U(VI) using nitric acid (HNO₃) modified activated carbon: equilibrium, thermodynamic and kinetic studies

Author:
Çiğdem Öter; Özlem Selçuk Zorer
Source:
International journal of environmental analytical chemistry 2021 v.101 no.14 pp. 1950-1965
ISSN:
1029-0397
Subject:
activated carbon; adsorbents; adsorption; analytical chemistry; batch systems; endothermy; kinetics; nitric acid; pH; sorption isotherms; temperature; thermodynamics; thorium; uranium
Abstract:
... In order to research the sorption of thorium(IV) and uranium(VI) ions from aqueous solutions, the granular-activated carbon was modified with nitric acid. The modified adsorbent was identified by BET, elemental analysis, SEM and FTIR method. The influences of different parameters such as pH, contact time, temperature and initial concentration were investigated using batch system. Adsorption of Th( ...
DOI:
10.1080/03067319.2019.1691184

56. Adsorption characteristics of chemically modified Caryota urens seeds for the removal of Cu(II) from aqueous solution: Isotherms and kinetic studies

Author:
Rifaqat Ali Khan Rao; Amna Khatoon
Source:
Groundwater for sustainable development 2016 v.2-3 pp. 42-52
ISSN:
2352-801X
Subject:
Caryota urens; Fourier transform infrared spectroscopy; adsorbents; adsorption; aqueous solutions; batch systems; copper; desorption; endothermy; energy-dispersive X-ray analysis; groundwater; kinetics; pH; scanning electron microscopy; seeds; sodium hydroxide; sorption isotherms; sustainable development; temperature; thermodynamics
Abstract:
... In the present work Caryota urens seeds (CUS), a plant based adsorbent, were modified chemically using different chemical reagents. Among all reagents, NaOH was found to be the most effective modificant. Alkali treated C. urens seeds (ATCUS) exhibited higher removal efficiency (99%) towards Cu(II) than the raw CUS (91%). Characterization of both raw and modified CUS was carried out via SEM, EDX an ...
DOI:
10.1016/j.gsd.2016.05.004

57. Adsorption isotherms and kinetics for the removal of triclosan and methyl triclosan from wastewater using inactivated dried sludge

Author:
Fatemeh Tohidi; Zongwei Cai
Source:
Process biochemistry 2016 v.51 no.8 pp. 1069-1077
ISSN:
1359-5113
Subject:
adsorption; batch systems; biosorption; heat production; hydrophobicity; pH; pollutants; regression analysis; sludge; sorption isotherms; temperature; wastewater
Abstract:
... Biosorption equilibrium and kinetics of TCS and MTCS sorption to inactivated dried sludge were studied in a batch system with respect to pH, temperature and sludge concentration. Linear and Freundlich isotherms were able to describe the adsorption system well. Sorption capacity increased from 4.80 to 7.36μg/g and 6.28 to 7.76μg/g for TCS and MTCS, respectively with an increase in temperature from ...
DOI:
10.1016/j.procbio.2016.04.018

58. Adsorption mechanism of 2,4-dichlorophenoxyacetic acid onto nitric-acid-modified activated carbon fiber

Author:
Qun Li; Jie Sun; Tianhao Ren; Lin Guo; Zhilin Yang; Qi Yang; Hai Chen
Source:
Environmental technology 2018 v.39 no.7 pp. 895-906
ISSN:
1479-487X
Subject:
2,4-D; Fourier transform infrared spectroscopy; activated carbon; adsorbents; adsorption; batch systems; carbon fibers; endothermy; models; moieties; nitric acid; pH; scanning electron microscopy; sorption isotherms; surface area; thermodynamics; titration
Abstract:
... Adsorption by carbon materials is one of the relatively fast methods in present research, which is widely used in emergency events. Activated carbon fiber (ACF) modified by nitric acid (N-ACF) was studied in this research to determine the adsorption performance for 2,4-dichlorophenoxyacetic acid (2,4-D). Subsequently, influence factors, adsorption isotherm models, kinetics and thermodynamic were i ...
DOI:
10.1080/09593330.2017.1316318

59. Adsorption mechanism of chromium(III) using biosorbents of Jatropha curcas L.

Author:
Affonso Celso Gonçalves Jr.; Herbert Nacke; Daniel Schwantes; Marcelo Angelo Campagnolo; Alisson Junior Miola; César Ricardo Teixeira Tarley; Douglas Cardoso Dragunski; Fabio Antônio Cajamarca Suquila
Source:
Environmental science and pollution research international 2017 v.24 no.27 pp. 21778-21790
ISSN:
0944-1344
Subject:
Jatropha curcas; adsorbents; adsorption; batch systems; biosorbents; chromium; endosperm; pH; sorption isotherms; temperature; testa; thermodynamics; water pollution
Abstract:
... The removal of Cr³⁺ from water solutions by biosorbents from the rind, endosperm, and endosperm + episperm of the Jatropha curcas was evaluated. Adsorption tests were performed in batch systems for evaluating the influence of the solution’s pH, adsorbent mass, contact time, initial Cr³⁺ concentrations, and solution temperature during the adsorption process. Kinetic, adsorption isotherm, and thermo ...
DOI:
10.1007/s11356-017-9749-z

60. Adsorption of BTX (benzene, toluene, o-xylene, and p-xylene) from aqueous solutions by modified periodic mesoporous organosilica

Author:
Cícero P. Moura; Carla B. Vidal; Allen L. Barros; Luelc S. Costa; Luiz C.G. Vasconcellos; Francisco S. Dias; Ronaldo F. Nascimento
Source:
Journal of colloid and interface science 2011 v.363 no.2 pp. 626-634
ISSN:
0021-9797
Subject:
X-ray diffraction; adsorption; aqueous solutions; batch systems; benzene; crystal structure; desorption; models; nitrogen; potassium chloride; sorption isotherms; surfactants; thermal stability; thermogravimetry; toluene; xylene
Abstract:
... The capacity of a periodic mesoporous organosilica (PMO) to adsorb the aromatic compounds benzene, toluene, o-, and p-xylenes (BTX), which are usually present in produced waters, was investigated under both column and batch processes. The PMO was synthesized by condensation of 1,4 bis(triethoxisilyl)benzene (BTEB) under acidic conditions by using structure-directing agent (SDA) Pluronic P123 in th ...
DOI:
10.1016/j.jcis.2011.07.054

61. Adsorption of Cu(II) Ions on Adsorbent Materials Obtained from Marine Red Algae Callithamnion corymbosum sp.

Author:
Alina Roxana Lucaci; Dumitru Bulgariu; Maria-Cristina Popescu; Laura Bulgariu
Source:
Water 2020 v.12 no.2 pp. -
ISSN:
2073-4441
Subject:
Callithamnion; adsorbents; adsorption; algae; alginates; aqueous solutions; batch systems; biomass; biosorption; dosage; effluents; extraction; ions; iron; moieties; nanoparticles; pH; renewable resources; temperature; water
Abstract:
... In recent years, studies on the more efficient use of natural materials in adsorption processes have increased significantly. Thus, obtaining new adsorbents from marine algae biomass with higher adsorptive performance will ensure a better use of these renewable resources. In this study, the adsorption of Cu(II) ions from aqueous solution was done using three types of adsorbent materials obtained f ...
DOI:
10.3390/w12020372

62. Adsorption of Divalent Copper Ions from Synthetic Wastewater Using Layered Double Hydroxides (NiZnFe) and Its Composites with Banana Biochar and Carbon Nanotubes

Author:
M. Shafiq; A. A. Alazba; M. T. Amin
Source:
Water, air, and soil pollution 2020 v.231 no.7 pp. 346
ISSN:
0049-6979
Subject:
Gibbs free energy; adsorbents; adsorption; air; bananas; batch systems; biochar; carbon nanotubes; copper; energy; kinetics; models; pH; soil pollution; sorption isotherms; wastewater; water
Abstract:
... The adsorption potential of layered double hydroxides (LDH) of nickle–zinc–iron (NiZnFe) and its composites with single-wall carbon nanotubes (CNTs) and banana biochar (Bb) was investigated for divalent copper (Cu²⁺) removal in a batch system. Field emission scanning electron microscopy and FT-IR spectra confirmed the adsorption of Cu²⁺ onto LDH (NiZnFe) and its composites with Bb (LDH/Bb) and CNT ...
DOI:
10.1007/s11270-020-04732-6

63. Adsorption of Fe3＋ ions onto carbon powder followed by adsorbent electroflotation

Author:
Anastasia Gaydukova; Tatiana Kon’kova; Vladimir Kolesnikov; Anastasia Pokhvalitova
Source:
Environmental technology & innovation 2021 v.23 pp. 101722
ISSN:
2352-1864
Subject:
adsorbents; adsorption; batch systems; carbon; coal; environmental technology; nitrates; sodium sulfate; spectroscopy
Abstract:
... The work carried out studies on the adsorption process of Fe³＋ ions from aqueous solutions of chloride, nitrate and sodium sulfate salts in a batch process. Based on the obtained Fe3+ adsorption isotherms, a conclusion is made about a possible specific sorption mechanism. The simplified Boehm method was used to determine the number of basic and acidic functional groups on the surface of the invest ...
DOI:
10.1016/j.eti.2021.101722

64. Adsorption of Imazalil herbicide onto Moroccan agricultural soils: Kinetic and isotherm adsorption studies

Author:
Najat Qisse; Marouane EL Alouani; Laila EL Azzouzi; Imane EL Fadil; Hamid Saufi; Mohammed Alaoui EL Belghiti; Abdallah Zrineh; Mohammed EL Azzouzi
Source:
Groundwater for sustainable development 2020 v.11 pp. 100468
ISSN:
2352-801X
Subject:
adsorption; agricultural land; agricultural soils; analytical methods; batch systems; field crops; groundwater; herbicides; imazalil; imidazole; kinetics; models; organic carbon; pollutants; soil properties; sorption isotherms; sustainable development; Morocco
Abstract:
... Imazalil herbicide [1-[2-(2,4-dichlorophenyl)-2-prop-2-enoxyethyl] imidazole] belongs to the Enilconazole family of herbicides, this compound is largely utilized on agricultural field crops in Morocco. Soil properties greatly improve the adsorption of this chemical compound in soils, but there is a need to understand their effect on said soils. This current study evaluates the adsorption behavior ...
DOI:
10.1016/j.gsd.2020.100468

65. Adsorption of Methylene Blue and Methyl Orange By Using Waste Ash

Author:
Serpil SAVCI; Mehmet Mert UYSAL
Source:
Süleyman Demirel üniversitesi fen bilimleri enstitüsü dergisi 2017 v.21 no.3 pp. 831-835
ISSN:
1308-6529
Subject:
adsorbents; adsorption; ambient temperature; batch systems; energy; fens; methyl orange; methylene blue; models; sorption isotherms
Abstract:
... The adsorption in a batch system for methylene blue (MB) and methyl orange (MO) on waste ash were evaluated. The adsorption isotherms showed adsorptive maximum capacities for waste ash of MB and MO 40.983 mg g-1 35.614 mg g-1 respectively. The equilibrium adsorption data were fitted by Dubinin-Radushkevic (D-R) adsorption isotherm model. The estimated values of adsorption ene ...
DOI:
10.19113/sdufbed.46521

66. Adsorption of Ni(II) on alkali treated pineapple residue (Ananas comosus L.): Batch and column studies

Author:
Rifaqat Ali Khan Rao; Umra Khan
Source:
Groundwater for sustainable development 2017 v.5 pp. 244-252
ISSN:
2352-801X
Subject:
Ananas comosus; Fourier transform infrared spectroscopy; adsorption; aqueous solutions; batch systems; binding sites; desorption; endothermy; groundwater; hemicellulose; ions; kinetics; lignin; models; moieties; nickel; pH; pineapples; sodium hydroxide; sorption isotherms; sustainable development; thermodynamics
Abstract:
... The novel alkali-treated pineapple residue was utilized for sequestration of Ni(II) ions from aqueous solution. On treatment with Sodium hydroxide the metal binding sites (free O−) of pineapple residue enhanced. Lignin and hemi-cellulose being substantial components in pineapple played a vital role in nickel adsorption. The prime functional groups present in ATPR that participated in nickel adsorp ...
DOI:
10.1016/j.gsd.2017.08.002

67. Adsorption of Selenite and Selenate on Ferrihydrite in the Presence and Absence of Dissolved Organic Carbon

Author:
Jessica E. Favorito; Matthew J. Eick; Paul R. Grossl
Source:
Journal of environmental quality 2018 v.47 no.1 pp. 147-155
ISSN:
0047-2425
Subject:
adsorption; batch systems; citric acid; dissolved organic carbon; ferrihydrite; isoelectric point; pH; salicylic acid; selenates; selenites; selenium; solubility
Abstract:
... This study examines selenite [Se(IV)] and selenate [Se(VI)] adsorption on two‐line ferrihydrite in the presence and absence of two low‐molecular‐weight dissolved organic carbon (DOC) species, citric and salicylic acid. Ferrihydrite surface potential measurements were also examined to identify shifts in isoelectric points, which suggest possible adsorption mechanisms. Sorption was completed in batc ...
DOI:
10.2134/jeq2017.09.0352

68. Adsorption of Sulfur Compounds from Diesel with Ion-Impregnated Activated Carbons

Author:
Chen Teng-Chien; Agripa Michelle L.; Lu Ming-Chun; Dalida Maria Lourdes P.
Source:
Energy & Fuels 2016 v.30 no.5 pp. 3870-3878
ISSN:
1520-5029
Subject:
activated carbon; adsorbents; adsorption; agitation; ambient temperature; batch systems; copper; diesel fuel; iron; metal ions; models; nickel; sorption isotherms; sulfur
Abstract:
... The adsorption of benzothiophene sulfone (BTO) and dibenzothiophene sulfone (DBTO) from model diesel fuel were evaluated using granular activated carbon (GAC) and modified activated carbon. Modified activated carbon was impregnated with metal ions, Cu²⁺, Fe³⁺, and Ni²⁺, and the effect on its adsorption characteristics was determined. Adsorption performance was investigated using batch process at r ...
DOI:
10.1021/acs.energyfuels.6b00230

69. Adsorption of a cationic dye (methylene blue) by Iranian natural clays from aqueous solutions: equilibrium, kinetic and thermodynamic study

Author:
Hassan Aghdasinia; Hossein Rahbari Asiabi
Source:
Environmental earth sciences 2018 v.77 no.5 pp. 218
ISSN:
1866-6280
Subject:
X-ray diffraction; adsorbents; adsorption; aqueous solutions; batch systems; heat production; methylene blue; models; pH; scanning electron microscopy; sorption isotherms; surface area; temperature; wastewater treatment
Abstract:
... Removal of dyes by low-cost adsorbents is an effective method in wastewater treatment. Iranian natural clays were determined to be effective adsorbents for removal of a basic dye (methylene blue) from aqueous solutions in batch processes. Characterizations of the clays were carried out by X-ray diffraction, Brunauer–Emmett–Teller surface area analysis and field-emission scanning electron microscop ...
DOI:
10.1007/s12665-018-7342-5

70. Adsorption of anionic dyes from aqueous solutions using chemically modified straw

Author:
Wenxuan Zhang; Haijiang Li; Xiaowei Kan; Lei Dong; Han Yan; Ziwen Jiang; Hu Yang; Aimin Li; Rongshi Cheng
Source:
Bioresource technology 2012 v.117 no. pp. 40-47
ISSN:
0960-8524
Subject:
adsorbents; adsorption; aqueous solutions; batch systems; dyes; environmental protection; wheat straw; working conditions
Abstract:
... The effective disposal of redundant straw is a significant work for environmental protection and full utilization of resource. In this work, the wheat straw has been modified by etherification to prepare a kind of quaternary ammonium straw adsorbents. The adsorption behaviors of the modified straw for methyl orange (MO) and acid green 25(AG25) were studied in both batch and column systems. The ads ...
DOI:
10.1016/j.biortech.2012.04.064
PubMed:
22609712

71. Adsorption of aromatic carboxylic acids on carbon nanotubes: impact of surface functionalization, molecular size and structure

Author:
Shifan Li; Iskinder Arsano; Saikat Talapatra; Mesfin Tsige; Xingmao Ma
Source:
Environmental science 2019 v.21 no.12 pp. 2109-2117
ISSN:
2050-7895
Subject:
adsorption; aromatic compounds; batch systems; carbon nanotubes; carboxylic acids; electrostatic interactions; hydrogen bonding; hydrophobicity; ions; moieties; molecular weight; octanol; pH
Abstract:
... A large quantity of emerging contaminants are ionizable, and the ionized compounds display different adsorption behaviors than their neutral counterparts. In particular, a strong intermolecular force, negative charge assisted hydrogen bonding ((−)CAHB), was recently identified, which explains the unusually strong adsorption of negatively charged compounds on carbon nanotubes with oxygen-containing ...
DOI:
10.1039/c9em00417c

72. Adsorption of cationic dye from aqueous solutions by date pits: Equilibrium, kinetic, thermodynamic studies, and batch adsorber design

Author:
R. A. Mansour; N. M. Aboeleneen; Nabil M. AbdelMonem
Source:
International journal of phytoremediation 2018 v.20 no.10 pp. 1062-1074
ISSN:
1549-7879
Subject:
Gibbs free energy; adsorbents; adsorption; aqueous solutions; batch systems; enthalpy; entropy; heat production; kinetics; methylene blue; pH; phytoremediation; scanning electron microscopes; sorption isotherms; temperature
Abstract:
... The retention profile of methylene blue from aqueous solutions onto the solid adsorbent date pits has been investigated in a batch system. The characterization and adsorption efficiency for methylene blue was evaluated using date pits. Fourier Transform Infra-Red, Scanning Electron Microscope, Brunauer–Emmett–Teller analysis were performed to determine the characteristics of the material. The effe ...
DOI:
10.1080/15226514.2018.1460306

73. Adsorption of cefazolin on organoclay: experimental design, characterization, and a complete batch study

Author:
Marcela Pires Spaolonzi; Marina Barbosa de Farias; Meuris Gurgel Carlos da Silva; Melissa Gurgel Adeodato Vieira
Source:
Environmental science and pollution research 2022 v.29 no.46 pp. 70209-70227
ISSN:
0944-1344
Subject:
adsorbents; adsorption; batch systems; cefazolin; ecotoxicology; experimental design; hospitals; mass transfer; pH; pollution; remediation; research; thermodynamics; wastewater
Abstract:
... Cefazolin (CFZ) is a ubiquitous antibiotic in hospital settings and has been recognized as an emerging contaminant due to its ecotoxicity. Despite the growing concern around this compound, the literature addressing feasible advanced techniques for CFZ uptake from aqueous matrices is still scarce. Thus, the objective of this work was to evaluate the adsorption of cefazolin on Spectrogel® organoclay ...
DOI:
10.1007/s11356-022-20830-w

74. Adsorption of chromate and cupric ions onto chitosan-coated cotton gauze

Author:
Franco Ferrero; Cinzia Tonetti; Monica Periolatto
Source:
Carbohydrate polymers 2014 v.110 pp. 367-373
ISSN:
0144-8617
Subject:
cotton; temperature; copper; models; energy-dispersive X-ray analysis; scanning electron microscopy; adsorbents; Fourier transform infrared spectroscopy; pH; sorption isotherms; batch systems; chromium; metal ions; adsorption
Abstract:
... A chitosan-coated cotton gauze was prepared by UV-curing and tested as adsorbent to remove copper (II) and chromium (VI) ions from water solutions. The adsorbent characterization was carried out by Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Spectroscopy (EDX) and Fourier Transform Infrared Spectroscopy in Attenuated Total Reflection (FTIR-ATR).Adsorption of copper and chromium ion ...
DOI:
10.1016/j.carbpol.2014.04.016

75. Adsorption of chromium (Cr) from tannery wastewater using low-cost spent tea leaves adsorbent

Author:
Md. Nur-E-Alam; Md. Abu Sayid Mia; Farid Ahmad; Md. Mafizur Rahman
Source:
Applied water science 2018 v.8 no.5 pp. 129
ISSN:
2190-5487
Subject:
adsorbents; adsorption; batch systems; biochemical oxygen demand; chemical oxygen demand; chromium; heavy metals; leather tanning; leaves; manufacturing; pH; tanneries; tea; tea (beverage); wastewater
Abstract:
... Leather tanning is consuming a large quantity of water and discharging a large volume of wastewater. This wastewater contains the high value of COD, BOD, TSS, TDS and heavy metals. In this study, spent tea leaves, a valueless waste produced during the manufacturing of tea beverage, were assessed for their potential to remove chromium (Cr) from tannery wastewater. Cr removal was studied by the batc ...
DOI:
10.1007/s13201-018-0774-y

76. Adsorption of crystal violet onto functionalised multi-walled carbon nanotubes: Equilibrium and kinetic studies

Author:
V. Sabna; Santosh G. Thampi; S. Chandrakaran
Source:
Ecotoxicology and environmental safety 2016 v.134 pp. 390-397
ISSN:
0147-6513
Subject:
Fourier transform infrared spectroscopy; adsorbents; adsorption; aqueous solutions; batch systems; carbon nanotubes; carcinogens; fabrics; gentian violet; hydrogen bonding; hydrophilicity; industry; kinetics; models; pH; paper; regression analysis; sorption isotherms
Abstract:
... Synthetic dyes present in effluent from textile, paper and paint industries contain crystal violet (CV), a known carcinogenic agent. This study investigates the modification of multiwalled carbon nanotubes by acid reflux method and equilibrium and kinetic behaviour of adsorption of CV onto functionalized multi-walled carbon nanotubes (fMWNTs) in batch system. High stability of the fMWNTs suspensio ...
DOI:
10.1016/j.ecoenv.2015.09.018

77. Adsorption of diethyl and dibutyl phthalates onto activated carbon produced from Albizia julibrissin pods: kinetics and isotherms

Author:
Y. Bouhamidi; F. Kaouah; L. Nouri; S. Boumaza; M. Trari
Source:
International journal of environmental science and technology 2017 v.14 no.2 pp. 271-284
ISSN:
1735-1472
Subject:
Albizia julibrissin; Fourier transform infrared spectroscopy; activated carbon; adsorbents; adsorption; batch systems; biomass; models; phosphoric acid; phthalates; pods; sorption isotherms; temperature
Abstract:
... The adsorption behavior study of diethyl and dibutyl phthalates was investigated onto a new activated carbon prepared from an abundant biomass “Albizia julibrissin pods,” treated chemically by H₃PO₄. A series of experiments were conducted in a batch system to estimate the effect of operating conditions such as the adsorbent nature, the dose of adsorbent, the contact time, the initial concentration ...
DOI:
10.1007/s13762-016-1141-x

78. Adsorption of food dyes acid blue 9 and food yellow 3 onto chitosan: Stirring rate effect in kinetics and mechanism

Author:
G.L. Dotto; L.A.A. Pinto
Source:
Journal of hazardous materials 2011 v.187 no.1-3 pp. 164-170
ISSN:
0304-3894
Subject:
adsorption; batch systems; chitosan; diffusivity; dyeing; dyes; food coloring; mixing; models
Abstract:
... Adsorption of food dyes acid blue 9 and food yellow 3 onto chitosan was studied. Stirring rate influence on kinetics and mechanism was verified. Infra-red analysis was carried out before and after adsorption in order to verify the adsorption nature. Adsorption experiments were carried out in batch systems with different stirring rates (15–400rpm). Kinetic behavior was analyzed through the pseudo-f ...
DOI:
10.1016/j.jhazmat.2011.01.016

79. Adsorption of hexavalent chromium ions from aqueous solution by graphene nanosheets: kinetic and thermodynamic studies

Author:
E. K. Goharshadi; M. B. Moghaddam
Source:
International journal of environmental science and technology 2015 v.12 no.7 pp. 2153-2160
ISSN:
1735-1472
Subject:
Fourier transform infrared spectroscopy; Gibbs free energy; activation energy; adsorbents; adsorption; aqueous solutions; batch systems; chromium; energy-dispersive X-ray analysis; enthalpy; entropy; epoxides; graphene; ions; models; nanosheets; nitrogen; oxygen; surface area; temperature; titration; transmission electron microscopy
Abstract:
... In the present study, a batch system was used to investigate the adsorption of chromium (VI) ions from an aqueous solution by graphene nanosheets. Graphene is decorated with functional groups containing oxygen such as epoxy and hydroxyl on the basal plane. The large negative charge density available on graphene causes effective adsorption of chromium (VI) ions from aqueous solutions. The adsorptio ...
DOI:
10.1007/s13762-014-0748-z

80. Adsorption of methylene blue and crystal violet on low-cost adsorbent: waste fruits of Rapanea ferruginea (ethanol-treated and H2SO4-treated)

Author:
Tamiris Chahm; Bruna Aparecida Martins; Clovis Antonio Rodrigues
Source:
Environmental earth sciences 2018 v.77 no.13 pp. 508
ISSN:
1866-6280
Subject:
Fourier transform infrared spectroscopy; Rapanea; adsorbents; adsorption; aqueous solutions; batch systems; ethanol; experimental design; fruits; gentian violet; kinetics; mathematical models; methylene blue; moieties; pH; prediction; regression analysis; response surface methodology; scanning electron microscopy; temperature; thermogravimetry; wastes
Abstract:
... This study assesses the ability of two low-cost adsorbents made from waste of Rapanea ferruginea treated with ethanol (WRf) and its H₂SO₄-treated analog (WRf/H₂SO₄) for the removal of two cationic dyes methylene blue (MB) and crystal violet (CV) from aqueous solutions. The adsorbent was characterized by scanning electron microscopy, Fourier transform infrared spectrometry, thermogravimetric analys ...
DOI:
10.1007/s12665-018-7681-2

81. Adsorption of methylene blue onto carboxymethyl sago pulp-immobilized sago waste hydrogel beads

Author:
N. A. Dahlan; L.W. Lee; J. Pushpamalar; S.L. Ng
Source:
International journal of environmental science and technology 2019 v.16 no.4 pp. 2047-2058
ISSN:
1735-1472
Subject:
adsorbents; adsorption; aqueous solutions; batch systems; fungi; hydrogels; methylene blue; models; pH; pulp; sago; sorption isotherms; wastes
Abstract:
... In this study, sago waste (SW) exhibited great potential in developing an efficient adsorbent in removing methylene blue (MB) from aqueous solution. Three types of adsorbents, namely, powdered SW, carboxymethyl sago pulp (CMSP) hydrogel beads and CMSP-immobilized SW hydrogel beads (CMSP-SW), were produced using SW as the precursor. The MB adsorption was investigated in a batch system to study the ...
DOI:
10.1007/s13762-018-1789-5

82. Adsorption of naturals hormones estrone, 17β-estradiol, and estriol by rice husk: monocomponent and multicomponent kinetics and equilibrium

Author:
Jacqueline Ferandin Honorio; Márcia Teresinha Veit; Pedro Yahico Ramos Suzaki; Priscila Ferri Coldebella; Eliane Sloboda Rigobello; Célia Regina Granhen Tavares
Source:
Environmental technology 2020 v.41 no.9 pp. 1075-1092
ISSN:
1479-487X
Subject:
adsorbents; adsorption; ambient temperature; batch systems; biomass; biosorbents; cellulose; effluents; estradiol; estriol; estrone; hemicellulose; high performance liquid chromatography; lignin; models; moieties; pH; proteins; rice hulls; sorption isotherms
Abstract:
... In the present study, the use of the rice husk biomass as an alternative biosorbent for treating the estrone, 17 β-estradiol, and estriol hormones in monocomponent and multicomponent systems was investigated. The high-performance liquid chromatography technique (HPLC-UV) was applied in order to quantify the hormones, validating this method according to ANVISA and INMETRO. The biosorbent presented ...
DOI:
10.1080/09593330.2018.1521472

83. Adsorption of phenol from aqueous solutions by Na–bentonite: kinetic, equilibrium and thermodynamic studies

Author:
Hassan Asnaoui; Younes Dehmani; Mohammed Khalis; El-Kaber Hachem
Source:
International journal of environmental analytical chemistry 2022 v.102 no.13 pp. 3043-3057
ISSN:
1029-0397
Subject:
Gibbs free energy; adsorbents; adsorption; analytical chemistry; aqueous solutions; batch systems; endothermy; enthalpy; entropy; pH; phenol; sorption isotherms; temperature
Abstract:
... Adsorption of phenol from aqueous solution onto the Na-bentonite was investigated in a batch system. Equilibrium, thermodynamics and kinetic studies were conducted by considering the effects of pH, initial phenol concentration, contact time, and temperature. The results showed that the uptake of the phenol increased with an increase in initial phenol concentration. The pH for optimum adsorption wa ...
DOI:
10.1080/03067319.2020.1763328

84. Adsorption of silver from aqueous solution onto pre-treated bentonite clay: complete batch system evaluation

Author:
Manuella L. Cantuaria; Ambrósio F. de Almeida Neto; Eric S. Nascimento; Melissa G.A. Vieira
Source:
Journal of cleaner production 2016 v.112 pp. 1112-1121
ISSN:
0959-6526
Subject:
adsorbents; adsorption; aqueous solutions; batch systems; bentonite; clay; crystal structure; desorption; heat production; mass transfer; models; nitric acid; scanning electron microscopy; silver; sorption isotherms; statistical analysis; temperature; thermal stability; wastewater
Abstract:
... In this work, thermally modified bentonite clay (Verde-lodo) was used for batch adsorption of silver from aqueous solution. The adsorption rate was evaluated by a kinetics study based on the following models: pseudo-first order, pseudo-second order, intra-particle diffusion, Mass Transfer in External Film and Boyd model. Among these models, the Mass Transfer in External Film model presented better ...
DOI:
10.1016/j.jclepro.2015.07.021

85. Adsorption studies of Cu(II) on Boston fern (Nephrolepis exaltata Schott cv. Bostoniensis) leaves

Author:
Rifaqat Ali Khan Rao; Umra Khan
Source:
Applied water science 2017 v.7 no.4 pp. 2051-2061
ISSN:
2190-5487
Subject:
Fourier transform infrared spectroscopy; Nephrolepis exaltata; adsorbents; adsorption; ambient temperature; aqueous solutions; batch systems; copper; data analysis; desorption; energy-dispersive X-ray analysis; heat production; heavy metals; hydrochloric acid; ions; leaves; models; pH; scanning electron microscopy; sorption isotherms
Abstract:
... Adsorption studies were done on Boston fern leaves for the effective removal of Cu(II) ions from aqueous solution. It has been tested for the first time for heavy metal adsorption from aqueous solution. This promising material has shown remarkable adsorption capacity towards Cu(II) ions which confirm its novelty, ease of availability, non-toxic nature, cheapness, etc., and give the main innovation ...
DOI:
10.1007/s13201-016-0386-3

86. Adsorption study of heavy metals in aqueous solutions aiming at the treatment of contaminated groundwater

Author:
Silvia Priscila Dias Monte Blanco; Fabiano Bisinella Scheufele; Aparecido Nivaldo Módenes; Karise Schneider; Ana Paula de Oliveira; Paulo Roberto Paraíso; Rosângela Bergamasco
Source:
Journal of environmental science and health 2019 v.54 no.14 pp. 1400-1411
ISSN:
1532-4117
Subject:
activated carbon; adsorbents; adsorption; aqueous solutions; batch systems; copper; groundwater contamination; heavy metals; iron; kinetics; lead; metal ions; pH; silver; sorption isotherms; temperature; vegetables; water treatment
Abstract:
... This study evaluates the application of the vegetal activated carbon (AC), vegetable AC impregnated with Ag and Cu (0.08% m/m) and cationic Supergelᵀᴹ SGC650H resin for adsorption of Fe³⁺ and Pb²⁺ ions in closed and batch system. The best adsorption capacities were obtained by using the cationic resin SGC650H, pH 3, temperature of 30 °C and stirring speed of 100 rpm. Thus, the kinetic and equilibr ...
DOI:
10.1080/10934529.2019.1646086

87. Adsorption/desorption characteristics, separation and purification of phenazine‐1‐carboxylic acid from fermentation extract by macroporous adsorbing resins

Author:
Muhammad Bilal; Sheng‐Jie Yue; Hong‐Bo Hu; Wei Wang; Xue‐Hong Zhang
Source:
Journal of chemical technology and biotechnology 2018 v.93 no.11 pp. 3176-3184
ISSN:
0268-2575
Subject:
Pseudomonas chlororaphis; adsorbents; adsorption; antibiotics; batch systems; binding capacity; biological control; biosynthesis; carboxylic acids; culture media; desorption; engineering; fermentation; models; porous media; resins; secondary metabolites; solutes; sorption isotherms; temperature
Abstract:
... BACKGROUND: Pseudomonas chlororaphis GP72 is a biocontrol strain with great capacity to produce a wide range of secondary metabolites including phenazine derivatives. Phenazine‐1‐carboxylic acid (PCA) is an environmentally friendly antibiotic with broad‐spectrum biological and pharmaceutical activities. Many studies have been focused on engineering high‐yielding strains and optimizing fermentation ...
DOI:
10.1002/jctb.5673

88. Adsorptive Removal and Recovery of U(VI), Cu(II), Zn(II), and Co(II) from Water and Industry Effluents

Author:
T. S. Anirudhan; P. G. Radhakrishnan
Source:
Bioremediation journal 2011 v.15 no.1 pp. 39-56
ISSN:
1547-6529
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; adsorption; aqueous solutions; batch systems; bioremediation; cations; cobalt; copper; cross-linking reagents; desorption; effluents; equations; heavy metals; hydrochloric acid; ionic strength; lignocellulose; metal ions; models; pH; potassium; sodium chloride; tamarinds; thiosulfates; uranium; wastewater; zinc
Abstract:
... Tamarind fruit shell (TFS) was converted to a cation exchanger (PGTFS-SP-COOH) having a carboxylate functional group at the chain end by grafting poly(hydroxyethylmethacrylate) onto TFS (a lignocellulosic residue) using potassium peroxydisulfate-sodium thiosulfate redox initiator, and in the presence of N, N ′-methylenebisacrylamide as a cross-linking agent, followed by functionalization. The chem ...
DOI:
10.1080/10889868.2010.548001

89. Adsorptive Removal of Catechol from Aqueous Solution with a Water-Stable and Hydroxyl-Functionalized Terbium–Organic Framework

Author:
De-Yun Ma; Si-Yun Zhang; Si-Hui Zhan; Li-Ting Feng; Shi-Gong Zeng; Qia-Quan Lin; Yong Pan
Source:
Industrial & engineering chemistry process design and development 2019 v.58 no.43 pp. 20090-20098
ISSN:
1520-5045
Subject:
X-ray diffraction; adsorbents; adsorption; aqueous solutions; batch systems; catechol; coordination polymers; humans; hydrogen bonding; models; pH; process design; temperature; thermal stability; thermogravimetry; toxicity; water pollution; water vapor
Abstract:
... Nowadays, water pollution caused by diverse poisonous compounds, particularly hydroxy aromatic compounds and their derivatives, has become a prominent environmental issue because of the possible toxicity to human beings. This research adopted an adsorptive method to remove catechol using a water-stable hydroxyl-functionalized terbium–organic framework for the first time. The as-synthesized new met ...
DOI:
10.1021/acs.iecr.9b05067

90. Adsorptive batch and biological treatments of produced water: Recent progresses, challenges, and potentials

Author:
Maryam A. Al-Kaabi; Nabil Zouari; Dana Adel Da'na; Mohammad A. Al-Ghouti
Source:
Journal of environmental management 2021 v.290 pp. 112527
ISSN:
0301-4797
Subject:
activated sludge; adsorbents; adsorption; batch systems; biofilters; cellulose; chemical composition; chemical precipitation; coagulation; cost effectiveness; habitats; irrigation; microfiltration; nanocrystals; oils; oxidation; renewable energy sources; wildlife
Abstract:
... Produced water is responsible for the largest contribution in terms of waste stream volume associated with the production of oil and gas. Characterization of produced water is very crucial for the determination of its main components and constituents for optimal selection of the treatment method. This review aims to review and critically discuss various treatment options that can be considered cos ...
DOI:
10.1016/j.jenvman.2021.112527

91. Adsorptive desulfurization of thiophene, benzothiophene and dibenzothiophene over activated carbon manganese oxide nanocomposite: with column system evaluation

Author:
Tawfik A. Saleh; Kazeem O. Sulaiman; Saddam A. AL-Hammadi; H. Dafalla; Gaddafi I. Danmaliki
Source:
Journal of cleaner production 2017 v.154 pp. 401-412
ISSN:
0959-6526
Subject:
activated carbon; adsorbents; adsorption; batch systems; desulfurization; manganese oxides; models; nanocomposites; sorption isotherms; sulfur; surface area; texture; thiophene
Abstract:
... Activated carbon was successfully treated with manganese oxide to further improve its surface properties for adsorptive desulfurization. The activated carbon-manganese oxide nanocomposite consisting 10% optimum metal loading showed significant adsorptive desulfurization efficiency. The textural properties (surface area 160.98 m²g⁻¹, total pore volume 0.141 cm³g⁻¹, and average pore diameter 9.27 nm ...
DOI:
10.1016/j.jclepro.2017.03.169

92. Adsorptive removal of Cd(II) and Pb(II) ions from aqueous solutions by using Turkish illitic clay

Author:
Duygu Ozdes; Celal Duran; Hasan Basri Senturk
Source:
Journal of environmental management 2011 v.92 no.12 pp. 3082-3090
ISSN:
0301-4797
Subject:
temperature; enthalpy; aqueous solutions; batch systems; models; clay; entropy; pH; Fourier transform infrared spectroscopy; Gibbs free energy; ionic strength; metal ions; adsorption
Abstract:
... The ability of Turkish illitic clay (TIC) in removal of Cd(II) and Pb(II) ions from aqueous solutions has been examined in a batch adsorption process with respect to several experimental conditions including initial solution pH, contact time, initial metal ions concentration, temperature, ionic strength, and TIC concentration, etc. The characterization of TIC was performed by using FTIR, XRD and X ...
DOI:
10.1016/j.jenvman.2011.07.022
PubMed:
21856065

93. Adsorptive removal of Cu(II) from aqueous solution and industrial effluent using natural/agricultural wastes

Author:
Biswajit Singha; Sudip Kumar Das
Source:
Colloids and Surfaces B: Biointerfaces 2013 v.107 pp. 97-106
ISSN:
0927-7765
Subject:
Fourier transform infrared spectroscopy; adsorbents; adsorption; agricultural wastes; aqueous solutions; batch systems; colloids; copper; diffusivity; energy; industrial effluents; industrial wastes; models; pH; temperature; thermodynamics; wastewater
Abstract:
... The potentiality of low cost natural/agricultural waste biomasses for the removal of Cu(II) ion from aqueous solution has been investigated in batch experiments. The effect of various physico-chemical parameters such as initial pH, initial Cu(II) concentration, adsorbent dosage, contact time and temperature has been studied. The optimum pH for adsorption was found to be 6 for all adsorbents used. ...
DOI:
10.1016/j.colsurfb.2013.01.060

94. Adsorptive removal of basic blue 41 using pistachio shell adsorbent - Performance in batch and column system

Author:
İlknur Şentürk; Mazen Alzein
Source:
Sustainable chemistry and pharmacy 2020 v.16 pp. 100254
ISSN:
2352-5541
Subject:
Fourier transform infrared spectroscopy; adsorbents; batch systems; dyes; endothermy; fabrics; green chemistry; models; pH; particle size; pistachios; sorption isotherms; surface area; temperature; textile industry; textile mill effluents; wastewater treatment
Abstract:
... In present study, pistachio shell was used as an adsorbent to remove Basic blue 41 dye (BB 41) from textile wastewater effluents with a batch and a continuous system. The structure and characteristics of the pistachio shell were determined by pHₚzc, FTIR spectroscopy, BET surface area and SEM-EDX analysis. A batch system was used to investigate the effects of dye concentration, pH, quantity and pa ...
DOI:
10.1016/j.scp.2020.100254

95. Adsorptive removal of lead from acid mine drainage using cobalt-methylimidazolate framework as an adsorbent: kinetics, isotherm, and regeneration

Author:
Azile Nqombolo; Anele Mpupa; Aphiwe S. Gugushe; Richard M. Moutloali; Philiswa N. Nomngongo
Source:
Environmental science and pollution research international 2019 v.26 no.4 pp. 3330-3339
ISSN:
0944-1344
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; acid mine drainage; adsorbents; adsorption; atomic absorption spectrometry; batch systems; heavy metals; kinetics; lead; metal ions; models; pH; response surface methodology; sorption isotherms; transmission electron microscopes
Abstract:
... In this work, cobalt-methylimidazolate framework has been used as an adsorbent in the removal of Pb(II) from acid mine drainage in adsorption batch system. X-ray diffraction, Fourier-transform infrared spectroscopy, Brunauer-Emmet-Teller and transmission electron microscope were used for structural, morphological, and surface characteristics of cobalt-methylimidazolate framework. The concentration ...
DOI:
10.1007/s11356-018-3868-z

96. Adsorptive removal of malachite green from aqueous solutions by almond gum: Kinetic study and equilibrium isotherms

Author:
Fatma Bouaziz; Mohamed Koubaa; Fatma Kallel; Rhoudha Ellouz Ghorbel; Semia Ellouz Chaabouni
Source:
International journal of biological macromolecules 2017 pp. -
ISSN:
0141-8130
Subject:
Fourier transform infrared spectroscopy; Gibbs free energy; adsorbents; adsorption; agitation; almonds; aqueous solutions; batch systems; desorption; endothermy; enthalpy; entropy; hydrochloric acid; malachite green; models; pH; particle size; plant gums; scanning electron microscopy; sorption isotherms; temperature
Abstract:
... This work aimed at investigating the potential of almond gum as low cost adsorbent for the removal of the cationic dye; malachite green from aqueous solutions. Almond gum was first analyzed by scanning electron microscopy (SEM) and Fourier transforms infrared spectroscopy (FTIR), and then the adsorption behavior was studied in batch system. The effects of the adsorption parameters (adsorbent dose, ...
DOI:
10.1016/j.ijbiomac.2017.06.106

97. Adsorptive removal of phenol and aniline by modified bentonite: adsorption isotherm and kinetics study

Author:
Shahin Ahmadi; Chinenye Adaobi Igwegbe
Source:
Applied water science 2018 v.8 no.6 pp. 170
ISSN:
2190-5487
Subject:
absorbents; adsorbents; adsorption; aniline; aqueous solutions; batch systems; bentonite; kinetics; pH; phenol; sorption isotherms; wastewater
Abstract:
... In the present study, the adsorptive potential of modified bentonite in a batch system for the removal of aniline and phenol from aqueous solutions was investigated. The effect of various parameters including contact time (10–120 min), pH (2–10), adsorbent dosage (0.4–1.5 g/L) and initial concentration of aniline and phenol (50–200 mg/L) was investigated in this experimental laboratory study. Maxi ...
DOI:
10.1007/s13201-018-0826-3

98. Advanced nitrogen and phosphorus removal from municipal wastewater via simultaneous enhanced biological phosphorus removal and semi-nitritation (EBPR-SN) combined with anammox

Author:
Chuansheng Yuan; Yongzhen Peng; Jiantao Ji; Bo Wang; Xiyao Li; Qiong Zhang
Source:
Bioprocess and biosystems engineering 2020 v.43 no.11 pp. 2039-2052
ISSN:
1615-7591
Subject:
anaerobic ammonium oxidation; batch systems; bioprocessing; chemical oxygen demand; denitrification; engineering; municipal wastewater; nitrifying bacteria; nitrogen; phosphorus; sludge; tin
Abstract:
... In this study, a novel laboratory-scale synchronous enhanced biological phosphorus removal and semi-nitritation (termed as EBPR-SN) combined with anammox process was put forward for achieving nutrient elimination from municipal wastewater at 27 ℃. This process consisted of two 10 L sequencing batch reactors (SBRs), i.e. EBPR-SN SBR followed by Anammox SBR. The EBPR-SN SBR was operated for 400 days ...
DOI:
10.1007/s00449-020-02392-8

99. Advanced nitrogen removal from anaerobically pre-treated potato wastewater via partial nitritation-anammox in a continuous fed SBR

Author:
S.K. Téllez-Pérez; S. Wyffels; H. KleinJan; C. Meunier; R. Gerards
Source:
Chemosphere 2021 v.280 pp. 130716
ISSN:
0045-6535
Subject:
ammonia; anaerobic ammonium oxidation; batch systems; biofilm; biomass; industry; nitrogen; oxidation; potatoes; sludge; wastewater
Abstract:
... Partial nitritation-anammox was carried out successfully in a continuous fed Sequencing Batch Reactor (cf-SBR), composed of 3 compartments operated in continuous mode. The reactor was operated with floccular biomass (flocs) and biofilm to remove nitrogen from the anaerobic effluent from the potato industry at different nitrogen loading rates (0.16 g TN L⁻¹ d⁻¹ - 0.8 g TN L⁻¹ d⁻¹). At the maximum n ...
DOI:
10.1016/j.chemosphere.2021.130716

100. Advanced nitrogen removal from low C/N municipal wastewater by combining partial nitrification-anammox and endogenous partial denitrification-anammox (PN/A-EPD/A) process in a single-stage reactor

Author:
Huihui Cui; Liang Zhang; Qiong Zhang; Xiyao Li; Yu Huang; Yongzhen Peng
Source:
Bioresource technology 2021 v.339 pp. 125501
ISSN:
0960-8524
Subject:
anaerobic ammonium oxidation; batch systems; biofilm; denitrification; municipal wastewater; nitrogen; synergism; total nitrogen
Abstract:
... In this study, an innovative partial nitrification-anammox (PN/A) and endogenous partial denitrification-anammox (EPD/A) process was developed in a single-stage integrated fixed film activated sludge sequencing batch reactor (IFAS-SBR) treating real municipal wastewater with C/N ratio below 3.2. Enhanced efficiency of total nitrogen (TN) removal reached 90.1% with low HRT of 12 h and DO of 0.4 ± 0 ...
DOI:
10.1016/j.biortech.2021.125501