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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. 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

3. 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

4. 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

5. 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

6. 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

7. 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

8. 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

9. 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

10. 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

11. 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

12. 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

13. Application of Plackett–Burman Design in Screening the Significant Parameters in Extraction of Phytic Acid from Defatted Rice Bran by Acetic Acid

Author:
Sha, Ruyi; Wu, Dongyang; Wang, Wenxing; Wang, Shaolin; Cai, Chenggang; Mao, Jianwei
Source:
Waste and biomass valorization 2019 v.10 no.4 pp. 1003-1011
ISSN:
1877-2641
Subject:
acetic acid; liquids; mathematical models; model validation; pH; phytic acid; rice bran; screening; temperature
Abstract:
... This study aimed to screen the effective parameters that influence the extraction of phytic acid from defatted rice bran. Phytic acid was extracted from defatted rice bran with the help of food-grade acetic acid. The extraction parameters were screened in accordance with the Plackett–Burman design methodology to investigate their effects on the yield of phytic acid. A mathematical model of the yie ...
DOI:
10.1007/s12649-017-0092-x

14. Application of Recycle Paper Mill Waste (RPMW) as a Thermal Insulation Material

Author:
Pathak, Chinmay S.; Mandavgane, Sachin A.
Source:
Waste and biomass valorization 2019 v.10 no.8 pp. 2343-2352
ISSN:
1877-2641
Subject:
X-ray fluorescence spectroscopy; cement; differential thermal analysis; glass; humidity; insulating materials; mechanical properties; pipes; pulp and paper mills; scanning electron microscopy; temperature; thermal conductivity; thermal stability; thermogravimetry; wastes
Abstract:
... In this work, we investigated the thermal conductivity (k-value) and mechanical behavior of a lightweight material containing recycle paper mill waste (RPMW) and cement. RPMW has been characterized using XRF, TG-DTA, and SEM. TG-DTA results confirm the thermal stability of the material prepared (stable up to 300 °C) and SEM monographs clearly indicate the pores and fibrous nature of this material. ...
DOI:
10.1007/s12649-018-0235-8

15. A Review of the Primary By-product (Nejayote) of the Nixtamalization During Maize Processing: Potential Reuses

Author:
Castro-Muñoz, Roberto; Fíla, Vlastimil; Durán-Páramo, Enrique
Source:
Waste and biomass valorization 2019 v.10 no.1 pp. 13-22
ISSN:
1877-2641
Subject:
arabinoxylan; bioactive properties; byproducts; calcium; corn; financial economics; masa; nixtamalization; phenolic compounds; pollution; pollution control; sewage; sugars; urbanization; value added
Abstract:
... The production of nixtamalized products worldwide has been increased over past decades. The first pre-treatment applied to maize is the well-known Nixtamalization procedure, which produces large quantities of its primary by-product called ‘Nejayote’; this by-product is commonly discarded into the urbanized sewage without any additional treatment. Recently, Nejayote has attracted attention due to i ...
DOI:
10.1007/s12649-017-0029-4

16. Arsenic Partitioning Behavior During Sludge Co-combustion: Thermodynamic Equilibrium Simulation

Author:
Liu, Jingyong; Xie, Candie; Xie, Wuming; Zhang, Xiaochun; Chang, KenLin; Sun, Jian; Kuo, Jiahong; Xie, Wenhao; Liu, Chao; Sun, Shuiyu; Buyukada, Musa; Evrendilek, Fatih
Source:
Waste and biomass valorization 2019 v.10 no.8 pp. 2297-2307
ISSN:
1877-2641
Subject:
air; aluminum oxide; arsenic; arsenic oxide; calcium oxide; carbon dioxide; chlorides; combustion; ferric oxide; nitrogen; oxygen; sewage sludge; silica; thermodynamics; volatilization
Abstract:
... Using the computation method of thermodynamic equilibrium, effects of sewage sludge (SS) co-combustion conditions and interactions with Fe₂O₃, SiO₂, CaO and Al₂O₃ on migration and transformation of arsenic (As) were simulated in oxy-fuel (CO₂/O₂) and air (N₂/O₂) atmospheres. Arsenic mainly existed as As(s), As₄(g), As₂O₅(s), As₄O₆(g) and AsO(g) and volatilized more easily in reducing than oxidizin ...
DOI:
10.1007/s12649-018-0248-3

17. Artificial Neural Network Modeling in Pretreatment of Garden Biomass for Lignocellulose Degradation

Author:
Bhange, Vivek P.; Bhivgade, Urvashi V.; Vaidya, Atul N.
Source:
Waste and biomass valorization 2019 v.10 no.6 pp. 1571-1583
ISSN:
1877-2641
Subject:
biomass; cellulose; computer software; gardens; hydrogen peroxide; iron; lignin; lignocellulose; neural networks; response surface methodology; temperature
Abstract:
... In this work, Artificial Neural Network (ANN) model was developed for the garden biomass pretreatment process from the available experimental data of previous work. ANN model was studied to compare the results obtained through Response Surface Methodology (RSM), both graphically and numerically. The influence of process variables such as reaction temperature, Fe²⁺ concentration and H₂O₂ concentrat ...
DOI:
10.1007/s12649-017-0163-z

18. Assessment of Batch and Semi-continuous Anaerobic Digestion of Food Waste at Psychrophilic Range at Different Food Waste to Inoculum Ratios and Organic Loading Rates

Author:
Muñoz, Pedro
Source:
Waste and biomass valorization 2019 v.10 no.8 pp. 2119-2128
ISSN:
1877-2641
Subject:
anaerobic digestion; chemical oxygen demand; environmental impact; food waste; inoculum; methane production; municipal solid waste; temperature
Abstract:
... PURPOSE: At present, most studies have been focused on anaerobic digestion (AD) of food waste (FW) at temperatures above 35 °C. While AD of FW at psychrophilic temperature has been rarely reported, this may be a more economical procedure for municipal solid waste (MSW) management by reducing the organic fraction content and the corresponding environmental impact from its disposal. METHODS: FW and ...
DOI:
10.1007/s12649-018-0227-8

19. Assessment of Chemical Inhibitor Addition to Improve the Gas Production from Biowaste

Author:
Zahedi, S.; Dahunsi, S. O.; Perez, M.; Solera, R.
Source:
Waste and biomass valorization 2019 v.10 no.5 pp. 1091-1099
ISSN:
1877-2641
Subject:
Archaea; acidification; anaerobic digestion; biogas; methanogens; molybdates; municipal solid waste; organic matter; pH; sulfate-reducing bacteria
Abstract:
... The coexistence of sulphate-reducing bacteria and methanogenic archaea in the reactors during the anaerobic digestion from sulphate-containing waste could favor the accumulation of sulfide on the biogas, and therefore reduce its quality. In this study, the effect of sulphate-reducing bacteria inhibitor ([Formula: see text]) addition in a two phase system from sulphate-containing municipal solid wa ...
DOI:
10.1007/s12649-017-0189-2

20. Assessment of the Environmental Impact of Yeast Waste Application to Soil: An Integrated Approach

Author:
Mata, Ricardo; Ratinho, Sandro; Fangueiro, David
Source:
Waste and biomass valorization 2019 v.10 no.6 pp. 1767-1777
ISSN:
1877-2641
Subject:
ammonium; ammonium nitrate; brewing; carbon dioxide; environmental impact; field experimentation; global warming potential; greenhouse gas emissions; greenhouse gases; industry; irrigation; laboratory experimentation; leachates; leaching; methane; mineralization; nitrogen; nitrous oxide; organic fertilizers; potassium; sandy soils; soil organic matter; soil treatment; wastes; yeasts
Abstract:
... The yeast production industry (e.g. distillery, brewing, baking industries) has been growing globally over the last years generating a large amount of sub-products rich in organic matter that could be used as soil improvers or organic fertilizers. A set of laboratory experiments were performed to investigate the impact of yeast waste application to an acidic sandy soil on potential nutrient leachi ...
DOI:
10.1007/s12649-017-0168-7