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1. Acclimation Process for Enhancing Polyhydroxyalkanoate Accumulation in Activated-Sludge Biomass

Author:
Morgan-Sagastume, Fernando; Valentino, Francesco; Hjort, Markus; Zanaroli, Giulio; Majone, Mauro; Werker, Alan
Source:
Waste and biomass valorization 2019 v.10 no.4 pp. 1065-1082
ISSN:
1877-2641
Subject:
acclimation; acetates; activated sludge; bacterial communities; biomass; cell respiration; community structure; municipal wastewater; physiological state; polyhydroxyalkanoates
Abstract:
... A strategy was evaluated for conditioning activated sludge biomass to a new substrate whereby the polyhydroxyalkanoate (PHA) accumulation capacity of the biomass was enhanced based on a series of aerobic feast–famine acclimation cycles applied prior to PHA accumulation. Different biomass types enriched during the treatment of municipal wastewater at laboratory, pilot, and full scales were exposed ...
DOI:
10.1007/s12649-017-0122-8

2. Acid-Assisted Recycling of Iron Hydroxide Sludge as a Coagulant for Metalworking Fluid Wastewater Treatment

Author:
Mooheng, Phimonphan; Soratana, Kullapa; Phenrat, Tanapon
Source:
Waste and biomass valorization 2019 v.10 no.12 pp. 3635-3645
ISSN:
1877-2641
Subject:
alternative fuels; coagulants; coagulation; ferric chloride; ferric hydroxide; global warming; hydrochloric acid; iron; oils; operating costs; polyacrylic acid; recycling; sludge; solubilization; wastewater; wastewater treatment
Abstract:
... Coagulation is capable of treating metalworking fluid (MWF) wastewater after MWF oil recovery, as an alternative fuel by dissolved-air flotation, but it yields a substantial amount of oil-contaminated sludge. The oil-contaminated sludge is a resource of coagulant recovery, which reduces the sludge disposal and coagulant cost. This study examined the acid recovery and reusability of iron coagulant ...
DOI:
10.1007/s12649-019-00696-9

3. Acidophilic α-Amylase Production from Aspergillus niger RBP7 Using Potato Peel as Substrate: A Waste to Value Added Approach

Author:
Mukherjee, Riddha; Paul, Tanmay; Soren, Jyoti P.; Halder, Suman K.; Mondal, Keshab C.; Pati, Bikash R.; Das Mohapatra, Pradeep K.
Source:
Waste and biomass valorization 2019 v.10 no.4 pp. 851-863
ISSN:
1877-2641
Subject:
Aspergillus niger; Fourier transform infrared spectroscopy; agar; alpha-amylase; fungi; glucose; hydrolysis; maltose; phenotype; potato peels; response surface methodology; ribosomal DNA; sequence analysis; solid state fermentation; starch; sweet potatoes; taro; texture; wastes; yams; India
Abstract:
... In the present study a fungi was newly isolated from municipal dumping area of Midnapore town, West Bengal, India for the production of α-amylase. The isolate was identified as Aspergillus niger RBP7 (KX100578.1) through phenotypic and 18S rDNA sequencing observation. It produced clear zone (6.2 mm) on Czapekdox agar medium fortified with starch (1%, w/v). Optimization of enzyme production was stu ...
DOI:
10.1007/s12649-017-0114-8

4. A Comparative Biomass Compositional Analysis of Five Algal Species from the Paddy Fields of Burdwan District, West Bengal, India, to Determine Their Suitability for Handmade Paper Pulp Formulation

Author:
Mukherjee, Piyali; Keshri, Jai Prakash
Source:
Waste and biomass valorization 2019 v.10 no.2 pp. 327-340
ISSN:
1877-2641
Subject:
Cladophora; Eucalyptus; Lyngbya; Pithophora; Rhizoclonium; algae; analysis of variance; ash content; biomass; bioprocessing; cellulose; hemicellulose; lignin; paddies; paper; paper pulp; raw materials; silica; starch; tensile strength; wood pulp; India
Abstract:
... PURPOSE: The need for research into the use of alternative raw materials for the production of paper results from the anticipated shortages in the supply of raw-materials to the wood-based paper-industry. Although Burdwan town is vested with different types of algae, literally no work has been done for valorization of such biomass. Start of such bioprocess involves optimization of resource-utiliza ...
DOI:
10.1007/s12649-017-0053-4

5. A Comparison Study on the Production and Recovery of Lactic Acid by Fermenting Dairy By-Products with P. acidilactici and Lb. delbrüeckii spp. bulgaricus

Author:
Klupsaite, Dovile; Juodeikiene, Grazina; Arbones, Enrique; Quintáns, Alfonso Pérez; Zadeike, Daiva; Bartkiene, Elena; Glasner, Christoph; Dikiy, Alexander; Shumilina, Elena
Source:
Waste and biomass valorization 2019 v.10 no.6 pp. 1519-1528
ISSN:
1877-2641
Subject:
Lactobacillus delbrueckii subsp. bulgaricus; Pediococcus acidilactici; bacterial growth; byproducts; dairy industry; enzyme activity; fermentation; industrial wastes; isomers; lactic acid; lactic acid bacteria; lactose; microfiltration; pH; proteolysis; rye; sourdough; whey
Abstract:
... This paper provides a comparative study on the fermentative production of lactic acid (LA) by the novel Pediococcus acidilactici KTU05-7, previously isolated from rye sourdough, and the common dairy Lactobacillus delbrüeckii spp. bulgaricus using dairy by-products as a substrate. Lactic acid bacteria growth in different fermentation medium, β-D-galactosidase activity, lactose consumption, distribu ...
DOI:
10.1007/s12649-017-0171-z

6. A Complete Analytical Characterization of Products Obtained from Pyrolysis of Wood Barks of Calophyllum inophyllum

Author:
Sakthivel, R.; Ramesh, K.; Shameer, P. Mohamed; Purnachandran, R.
Source:
Waste and biomass valorization 2019 v.10 no.8 pp. 2319-2333
ISSN:
1877-2641
Subject:
Calophyllum inophyllum; Fourier transform infrared spectroscopy; acids; biochar; biofuels; biomass; carbon; chemical composition; diesel fuel; esters; furans; gas chromatography-mass spectrometry; heat; hydrocarbons; liquids; phenol; physicochemical properties; pyrolysis; raw materials; trees; wood
Abstract:
... This research article aims to analyze the properties and characteristics of the products obtained from slow pyrolysis of wood barks of matured Calophyllum inophyllum (CI) tree. The bio-oil, gas and biochar obtained from the slow pyrolysis carried out at 550 °C in a fixed bed batch type reactor at a heating rate of 30 °C min⁻¹ were characterized by different analytical techniques. Owing to the loft ...
DOI:
10.1007/s12649-018-0236-7

7. Additive Effects of Aromatic Oil and Styrene–Butadiene–Styrene Triblock Copolymer Upon Feedstock Recycling of Degraded Polymer Modified Asphalt

Author:
Sugano, Motoyuki; Kajita, Jun; Arai, Toshimasa; Kakuta, Yusuke
Source:
Waste and biomass valorization 2019 v.10 no.12 pp. 3579-3586
ISSN:
1877-2641
Subject:
additive effect; bitumen; composite polymers; feedstocks; molecular weight; oils; physical properties; polymerization; recycling; solvents
Abstract:
... Additive effects of aromatic oil and styrene–butadiene–styrene triblock copolymer (SBS) upon feedstock recycling of degraded polymer modified asphalt (MS) are discussed from the yields of four constituents separated by solvent extraction, the average molecular weight of four constituents, physical properties (softening point and penetration), and the ratio of radical content in the degraded and re ...
DOI:
10.1007/s12649-018-0380-0

8. A Feasible Application of Circular Economy: Spent Grain Energy Recovery in the Beer Industry

Author:
Ortiz, I.; Torreiro, Y.; Molina, G.; Maroño, M.; Sánchez, J. M.
Source:
Waste and biomass valorization 2019 v.10 no.12 pp. 3809-3819
ISSN:
1877-2641
Subject:
beers; brewing; brewing industry; carbon dioxide; circular economy; energy; energy recovery; fossil fuels; gasification; heat; hulls; landfills; solid wastes; spent grains; streams; synthesis gas; yeasts
Abstract:
... The generation of residual streams and wastes is a common constant in all productive processes. The brewing sector generates a large quantity of residual by-products which can be sustainably reused within the industry to contribute to cover the energy requirement of the process and at the same time to contribute to minimize the amount of waste that is sent to landfills. In this paper the feasibili ...
DOI:
10.1007/s12649-019-00677-y

9. A Green Valorisation Approach Using Microwaves and Supercritical CO2 for High-Added Value Ingredients from Mandarin (Citrus deliciosa Tenore) Leaf Waste

Author:
Ateş, Fadime; Şahin, Selin; İlbay, Zeynep; Kırbaşlar, Ş. İ.
Source:
Waste and biomass valorization 2019 v.10 no.3 pp. 533-546
ISSN:
1877-2641
Subject:
2,2-diphenyl-1-picrylhydrazyl; Citrus deliciosa; antioxidant activity; carbon dioxide; cell walls; copper; flavonoids; ingredients; leaf extracts; leaves; microwave radiation; models; response surface methodology; scanning electron microscopes; scanning electron microscopy; wastes
Abstract:
... The present study aims to increase the efficiency of a resource from waste to health by valorisation of it through cleaner, eco-friendly and less energy-consuming technical processes such as microwave-asissted (MAE) and supercritical fluid (SFE) extractions. On the other hand, optimization of the processes have been applied utilizing multivariate statistic technique such as Response surface Method ...
DOI:
10.1007/s12649-017-0074-z

10. A Method to Forecast the Combustion Characteristics of Biomass Waste: Based on a Custom-Designed Macro-TGA

Author:
Luo, Jundian; Li, Qinghai; Meng, Aihong; Long, Yanqiu; Zhang, Yanguo
Source:
Waste and biomass valorization 2019 v.10 no.12 pp. 3845-3856
ISSN:
1877-2641
Subject:
Chinese cabbage; Ginkgo; Populus; biomass; cellulose; combustion; hemicellulose; leaves; lignin; models; municipal solid waste; orange peels; pectins; starch; temperature
Abstract:
... The combustion characteristics of five model biomass components (cellulose, hemicellulose, lignin, pectin and starch) and four real biomass waste (poplar stem, Chinese cabbage, orange peel and ginkgo leaf) were evaluated in a custom-designed macro-TGA at three different heating rates. With the increase in the heating rates, the peaks of the various samples in DTG curves shifted to the high tempera ...
DOI:
10.1007/s12649-018-0318-6

11. Anaerobic Co-digestion in a Pilot-Scale Periodic Anaerobic Baffled Reactor (PABR) and Composting of Animal By-Products and Whey

Author:
Michalopoulos, I.; Mathioudakis, D.; Premetis, I.; Michalakidi, S.; Papadopoulou, K.; Lyberatos, G.
Source:
Waste and biomass valorization 2019 v.10 no.6 pp. 1469-1479
ISSN:
1877-2641
Subject:
anaerobic digestion; animal byproducts; biogas; bioreactors; composting; cow manure; gas production (biological); germination; liquids; mathematical models; methane; phytotoxicity; pig manure; poultry manure; rural areas; sawdust; sheep manure; temperature; whey; Greece
Abstract:
... The combination of anaerobic digestion and composting is examined as an integrated valorization process of the livestock waste generated in rural areas. Both biogas and high quality compost may be produced by such a combined process. Six different kinds of waste (pig manure, cow manure, cattle manure, poultry manure, sheep manure and whey) were mixed considering the annual waste production of Mets ...
DOI:
10.1007/s12649-017-0155-z

12. An Alternative to the Cymenes Production from Scrap Tire Rubber Using Heteropolyacid Catalysts

Author:
Tavera-Ruiz, Claudia; Gauthier-Maradei, Paola; Capron, Mickaël; Ferreira-Beltran, Deyanira; Palencia-Blanco, Cristian; Morin, Jean-Charles; Dumeignil, Franck
Source:
Waste and biomass valorization 2019 v.10 no.10 pp. 3057-3069
ISSN:
1877-2641
Subject:
Bronsted acids; acidity; catalysts; catalytic activity; catalytic cracking; cooling; gas chromatography-mass spectrometry; oils; p-cymene; pyrolysis; pyrolysis oils; rubber; silica; tires; traps; volatile compounds
Abstract:
... The catalytic reforming of pyrolytic oil comes from scrap tires rubber (STR) was studied using as catalyst three different heteropolyacids (HPA) supported on commercial silica (CARiACT Q-10); H₃PW₁₂O₄₀ (HPW), H₃PMo₁₂O₄₀ (HPMo) and H₄PMo₁₁VO₄₀ (HPMoV). A specify attention was given to influence of acidity of catalysts (i.e. strength and acid site types i.e. Lewis and/or Brønsted) on the concentrati ...
DOI:
10.1007/s12649-018-0310-1

13. Analysis of an Ionic Liquid and Salt Tolerant Microbial Consortium Which Is Useful for Enhancement of Enzymatic Hydrolysis and Biogas Production

Author:
Tantayotai, Prapakorn; Rattanaporn, Kittipong; Tepaamorndech, Surapun; Cheenkachorn, Kraipat; Sriariyanun, Malinee
Source:
Waste and biomass valorization 2019 v.10 no.6 pp. 1481-1491
ISSN:
1877-2641
Subject:
Actinobacteria; Bacteroidetes; Methanosarcinales; acetates; anaerobic digesters; biofuels; biomass; biorefining; corn stover; endo-1,4-beta-glucanase; enzymatic hydrolysis; enzyme activity; gas production (biological); ionic liquids; lignocellulose; population distribution; quantitative polymerase chain reaction; rice straw; saccharification; saline soils; salt tolerance; sludge; vegetable residues; wastewater
Abstract:
... Production of biofuels and biochemicals from lignocellulosic biomass via biorefining process requires both efficient pretreatment and cellulase enzymes to improve saccharification. Ionic liquid (IL) pretreatment is one of the competent methods to modify recalcitrant structures of lignocellulosic biomass, however, IL inhibits cellular metabolisms and cellulase activities. In this study, a lignocell ...
DOI:
10.1007/s12649-017-0186-5

14. Analysis of the Coffee Cut Stems as Raw Material for the Production of Sugars for Acetone–Butanol–Ethanol (ABE) Fermentation: Techno-Economic Analysis

Author:
Carmona-Garcia, Estefanny; Ortiz-Sánchez, Mariana; Cardona Alzate, Carlos Ariel
Source:
Waste and biomass valorization 2019 v.10 no.12 pp. 3793-3808
ISSN:
1877-2641
Subject:
Coffea arabica; algorithms; biomass; carbon; cellulose; computer software; economic feasibility; energy; environmental assessment; environmental impact; feedstocks; fermentation; hexoses; lignocellulose; operating costs; pentoses; saccharification; slurries; solvents; stems; value added; waste reduction
Abstract:
... Lignocellulosic biomass is generally considered as a promising feedstock for the production of value added compounds, due to its availability, low cost and potential sustainable use. Coffee cut-stems (CCS) are a cut of 15–20 cm of length above the land where the coffee plant is cultivated and it is obtained at high quantities after crop renewal. Its high cellulose content makes it a potential suga ...
DOI:
10.1007/s12649-019-00632-x

15. Analysis of the Continuous Bioconversion of Glycerol by Promotion of Highly Glycerol-Resistant Glycerol-Degrading Bacteria

Author:
Kurahashi, Kensuke; Hisada, Keisuke; Kashiwagi, Mai; Yoshihara, Shizue; Nomura, Toshiyuki; Tokumoto, Hayato
Source:
Waste and biomass valorization 2019 v.10 no.11 pp. 3321-3330
ISSN:
1877-2641
Subject:
Bacillus licheniformis; Burkholderia vietnamiensis; Clostridium pasteurianum; Staphylococcus aureus; anaerobic digestion; bacteria; biotransformation; community structure; denaturing gradient gel electrophoresis; fermentation; flora; genes; glucose; glycerol; hydrogen; hydrogen production; microbial communities; polymerase chain reaction; ribosomal RNA
Abstract:
... PURPOSE: We identified component microorganisms in a fed-batch operation by modulating the mixed flora via addition of glucose to achieve continuous bioconversion of hardly degradable glycerol. METHODS: To study the microbial community structure of the flora accumulated by the addition of glucose, 16S ribosomal RNA (rRNA) gene was sequenced using PCR with denaturing gradient gel electrophoresis (D ...
DOI:
10.1007/s12649-018-0344-4

16. A New Hybrid System for Reuse of Agro-industrial Wastes of Acerola: Dehydration and Fluid Dynamic Analysis

Author:
Ramadan, Lina; Duarte, Claudio R.; Barrozo, Marcos A. S.
Source:
Waste and biomass valorization 2019 v.10 no.8 pp. 2273-2283
ISSN:
1877-2641
Subject:
acerolas; agricultural wastes; bioactive compounds; drums (equipment); fruits; health promotion; microwave treatment; product quality; water content
Abstract:
... Fruit processing generates a large amount of waste that is generally discarded or underused. However the wastes of some fruits, such as acerola, contain bioactive substances with health promoting properties and potential technological applications. This paper evaluates the performance of a hybrid system composed of a microwave assisted rotary drum for the dehydration of acerola wastes and consider ...
DOI:
10.1007/s12649-018-0247-4

17. A Novel Synthesis Method of Zeolite X From Coal Fly Ash: Alkaline Fusion Followed by Ultrasonic-Assisted Synthesis Method

Author:
Dere Ozdemir, Ozgul; Piskin, Sabriye
Source:
Waste and biomass valorization 2019 v.10 no.1 pp. 143-154
ISSN:
1877-2641
Subject:
X-ray diffraction; cation exchange capacity; coal fly ash; energy; experimental design; scanning electron microscopy; surface area; ultrasonics; zeolites
Abstract:
... This study was focused on synthesis of zeolite X from coal fly ash using the alkaline fusion method coupled with a novel method which uses ultrasonic energy for aging step. Optimum conditions were investigated using the Taguchi experimental design method. Synthesized zeolitic products were characterized by X-ray diffractometry, scanning electron microscopy, surface area, and cation exchange capaci ...
DOI:
10.1007/s12649-017-0050-7

18. Antioxidant Capacity of Lignin and Phenolic Compounds from Corn Stover

Author:
Vazquez-Olivo, Gabriela; López-Martínez, Leticia X.; Contreras-Angulo, Laura; Heredia, J. Basilio
Source:
Waste and biomass valorization 2019 v.10 no.1 pp. 95-102
ISSN:
1877-2641
Subject:
2,2-diphenyl-1-picrylhydrazyl; acid hydrolysis; alkaline hydrolysis; antioxidants; bioactive compounds; biomass; corn; corn cobs; corn stover; crop production; ethanol; ferulic acid; hulls; leaves; lignin; lignin content; oxygen radical absorbance capacity; p-coumaric acid
Abstract:
... Corn stover, remaining after maize production, is produced worldwide. Despite being a residue, it contains bioactive compounds. Phenolic acids and lignin from maize plants were quantified to assess the possibility of valorization of this biomass. Extracts of the dry stem, root, cob, husk, leaf and grain of the maize plant were prepared using ethanol and alkaline hydrolysis. These were further subj ...
DOI:
10.1007/s12649-017-0028-5

19. Applicability of Fly Ash from Fluidized Bed Combustion of Peat, Wood, or Wastes to Concrete

Author:
Ohenoja, Katja; Wigren, Valter; Österbacka, Jan; Illikainen, Mirja
Source:
Waste and biomass valorization 2019 v.10 no.11 pp. 3525-3534
ISSN:
1877-2641
Subject:
aluminum oxide; calcium oxide; chlorides; combustion; concrete; ferric oxide; fineness; fluidized beds; fly ash; mechanical methods; peat; silica; sulfates; wastes; wood; United States
Abstract:
... The chemical and physical characteristics of five different fly ashes originating from fluidized bed combustion of peat, wood, or different wastes were investigated to determine whether they fulfilled the requirements for concrete set by the European EN 450-1 standard. Fly ash originating mostly from peat combustion fulfilled all the requirements of the EN 450-1 standard, without any treatments. S ...
DOI:
10.1007/s12649-018-0319-5

20. Application of Agricultural Waste-Based Catalysts to Transesterification of Esterified Palm Kernel Oil into Biodiesel: A Case of Banana Fruit Peel Versus Cocoa Pod Husk

Author:
Odude, Victoria O.; Adesina, Ayo J.; Oyetunde, Oluwaseyi O.; Adeyemi, Omowumi O.; Ishola, Niyi B.; Etim, Anietie Okon; Betiku, Eriola
Source:
Waste and biomass valorization 2019 v.10 no.4 pp. 877-888
ISSN:
1877-2641
Subject:
banana peels; bananas; biodiesel; catalysts; cocoa hulls; esterification; fatty acid methyl esters; feedstocks; husk ash; methanol; models; palm kernel oil; prediction; response surface methodology; temperature; transesterification; wastes
Abstract:
... This study aimed at modeling and optimizing the production of fatty acid methyl esters from esterified palm kernel oil using two heterogeneous biowaste catalysts namely calcined banana peel ash (CBPA) and calcined cocoa pod husk ash (CCPHA). The central composite design of response surface methodology (RSM) was employed for investigating the individual and interactive effects of the process input ...
DOI:
10.1007/s12649-017-0152-2