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- Author:
- Pootakham, Thanyakarn; Kumar, Amit
- Source:
- Bioresource technology 2010 v.101 no.1 pp. 414-421
- ISSN:
- 0960-8524
- Subject:
- shipping; biofuels; biomass; distribution (economics)
- Abstract:
- ... Biomass-based energy and fuels are receiving attention because they are considered carbon neutral; i.e. the amount of CO₂ released during combustion of this biomass is nearly the same as that taken up by the plants during their growth. Bio-oil is a dark viscous liquid consisting of hydrocarbons. These are produced by fast pyrolysis of biomass. “As-is” biomass material has a low energy density (MJm ...
- DOI:
- 10.1016/j.biortech.2009.07.077
- PubMed:
- 19699637
-
http://dx.doi.org/10.1016/j.biortech.2009.07.077
- Author:
- Yang, Rong-Ling; Li, Ning; Li, Ri-Feng; Smith, Thomas J.; Zong, Min-Hua
- Source:
- Bioresource technology 2010 v.101 no.1 pp. 1-5
- ISSN:
- 0960-8524
- Subject:
- Penicillium expansum; active sites; acylation; catalysts; catalytic activity; enzymatic reactions; fatty acid esters; triacylglycerol lipase
- Abstract:
- ... Immobilized lipase from Penicillium expansum, a novel and inexpensive enzyme preparation that we immobilized in our laboratory, was an excellent catalyst for highly regioselective acylation of arbutin with fatty acid vinyl esters. For the enzymatic butanoylation of arbutin, under the optimal conditions, initial reaction rate was 75.1mM/h, and substrate conversion and regioselectivity were greater ...
- DOI:
- 10.1016/j.biortech.2009.07.067
- PubMed:
- 19695875
-
http://dx.doi.org/10.1016/j.biortech.2009.07.067
- Author:
- Zupančič, Gregor D.; Jemec, A.
- Source:
- Bioresource technology 2010 v.101 no.1 pp. 26-33
- ISSN:
- 0960-8524
- Subject:
- anaerobic digesters; methane production; biogas; wastewater treatment; solid wastes; tannery waste; tannery effluents; anaerobic digestion; chromium; recycling
- Abstract:
- ... Disposal of the vast amounts of tannery waste that are currently generated is a significant problem. Anaerobic treatment of different types of tannery waste (fleshings, skin trimmings and wastewater sludge) was investigated. The biochemical methane potential is the same at 37°C or 55°C and an assay of this was shown to be an appropriate screening tool with which to estimate the susceptibility of a ...
- DOI:
- 10.1016/j.biortech.2009.07.028
- PubMed:
- 19699632
-
http://dx.doi.org/10.1016/j.biortech.2009.07.028
- Author:
- Costa, M.C.; Mota, S.; Nascimento, R.F.; Dos Santos, A.B.
- Source:
- Bioresource technology 2010 v.101 no.1 pp. 105-110
- ISSN:
- 0960-8524
- Subject:
- industrial wastes; textile mill effluents; wastewater treatment; reactive dyes; decolorization; anthraquinones; sulfonates; catalysts; anaerobic digestion; upflow anaerobic sludge blanket reactor
- Abstract:
- ... In this study, we assessed the catalytic effect of anthraquinone-2,6-disulfonate (AQDS) to enhance the reductive decolourisation of the azo dyes Reactive Red 2 and Congo Red in batch and continuous-flow experiments. While testing the anaerobic sludge 1 in assays free of AQDS, the highest values for the first-order kinetic constant (k1) were found with co-substrates formate and glucose. In the assa ...
- DOI:
- 10.1016/j.biortech.2009.08.015
- PubMed:
- 19717298
-
http://dx.doi.org/10.1016/j.biortech.2009.08.015
- Author:
- Tan, Yufei; Ji, Guodong
- Source:
- Bioresource technology 2010 v.101 no.1 pp. 174-180
- ISSN:
- 0960-8524
- Subject:
- Comamonas; Pseudomonas; acclimation; activated sludge; bacteria; carbon; community structure; environmental factors; polymerase chain reaction; wastewater
- Abstract:
- ... Status of, and changes in, the bacterial communities at two acclimation stages (with- and without-ultrasound) in a small 70°C ultrasound-enhanced anaerobic reactor for treating carbazole-containing wastewater reactor were analyzed by PCR-DGGE and real-time PCR techniques. PCR-DGGE results indicated that a large number of bands occurred in the whole sludge samples. Pseudomonas sp., Comamonas sp., a ...
- DOI:
- 10.1016/j.biortech.2009.08.044
-
http://dx.doi.org/10.1016/j.biortech.2009.08.044
- Author:
- Vilaseca, Fabiola; Valadez-Gonzalez, Alex; Herrera-Franco, Pedro J.; Pèlach, M. Àngels; López, Joan Pere; Mutjé, Pere
- Source:
- Bioresource technology 2010 v.101 no.1 pp. 387-395
- ISSN:
- 0960-8524
- Subject:
- Musa textilis; polypropylenes; tensile strength; composite wood products
- Abstract:
- ... In this paper, abaca strands were used as reinforcement of polypropylene matrix and their tensile mechanical properties were studied. It was found relevant increments on the tensile properties of the abaca strand-PP composites despite the lack of good adhesion at fiber-matrix interface. Afterwards, it was stated the influence of using maleated polypropylene (MAPP) as compatibilizer to promote the ...
- DOI:
- 10.1016/j.biortech.2009.07.066
- PubMed:
- 19700312
-
http://dx.doi.org/10.1016/j.biortech.2009.07.066
- Author:
- Lin, Jun; Zhang, Xingwang; Li, Zhongjian; Lei, Lecheng
- Source:
- Bioresource technology 2010 v.101 no.1 pp. 34-40
- ISSN:
- 0960-8524
- Subject:
- Gram-negative bacteria; activated sludge; anaerobic digesters; textile mill effluents; azo dyes; decolorization; deamination; reactive dyes; biodegradation; oxidation; chemical oxygen demand; Pseudomonas; fluidized beds
- Abstract:
- ... Pseudomonas sp. strain L1 capable of degrading the azo textile dye Reactive blue 13, was isolated from activated sludge in a sequencing batch reactor. A continuous two-stage anaerobic/aerobic biological fluidized bed system was used to decolorize and mineralize Reactive blue 13. The key factors affecting decolorization were investigated and the efficiency of degradation was also optimized. An over ...
- DOI:
- 10.1016/j.biortech.2009.07.037
- PubMed:
- 19713103
-
http://dx.doi.org/10.1016/j.biortech.2009.07.037
- Author:
- Basu, Debolina; Gupta, S.K.
- Source:
- Bioresource technology 2010 v.101 no.1 pp. 21-25
- ISSN:
- 0960-8524
- Subject:
- biodegradation; dechlorination; effluents; granules; sludge; upflow anaerobic sludge blanket reactor
- Abstract:
- ... This study examines the performance of bench-scale Upflow Anaerobic Sludge Blanket (UASB) reactor in treating simulated wastewaters containing 1,1,2,2-tetrachloroethane (TeCA). Reactors R1 (control) and R2 (containing TeCA) were operated at Hydraulic Retention Times (HRTs) of 36, 30, 24, 18 and 12h. The removal of TeCA decreased from 99.85% to 98.40% as the HRT was lowered down from 36 to 12h. The ...
- DOI:
- 10.1016/j.biortech.2009.06.074
- PubMed:
- 19699084
-
http://dx.doi.org/10.1016/j.biortech.2009.06.074
- Author:
- Ramirez-Lopez, E.M.; Corona-Hernandez, J.; Avelar-Gonzalez, F.J.; Omil, F.; Thalasso, F.
- Source:
- Bioresource technology 2010 v.101 no.1 pp. 87-91
- ISSN:
- 0960-8524
- Subject:
- peanuts; hulls; physicochemical properties; methanol; pollutants; air pollution; biofiltration; biofilters
- Abstract:
- ... Biofiltration consists of a filter-bed of organic matter serving both as carrier for the active biomass and as nutrient supply, through which the polluted gas passes. The selection of a suitable medium material is of major importance to ensure optimum biofilter efficiency. Peanut shells are an agricultural byproduct locally available in large quantities at a low price in most tropical and sub-trop ...
- DOI:
- 10.1016/j.biortech.2008.10.064
- PubMed:
- 19700310
-
http://dx.doi.org/10.1016/j.biortech.2008.10.064
- Author:
- Nevatalo, Laura M.; Mäkinen, Annukka E.; Kaksonen, Anna H.; Puhakka, Jaakko A.
- Source:
- Bioresource technology 2010 v.101 no.1 pp. 276-284
- ISSN:
- 0960-8524
- Subject:
- acetates; ethanol; hydrogen production; lactates; mining; oxidation; sulfates; wastewater; wastewater treatment
- Abstract:
- ... Sulfate-reducing fluidized-bed bioreactor (FBR) fed with ethanol-lactate mixture was operated at 35°C for 540days to assess mine wastewater treatment, biological hydrogen sulfide production capacity and acetate oxidation kinetics. During the mine wastewater treatment period with synthetic wastewater, the sulfate reduction rate was 62mmol [formula removed] L⁻¹ d⁻¹ and Fe and Zn precipitation rates ...
- DOI:
- 10.1016/j.biortech.2009.07.042
- PubMed:
- 19716290
-
http://dx.doi.org/10.1016/j.biortech.2009.07.042
- Author:
- Kocamemi, B. Alpaslan; Çeçen, F.
- Source:
- Bioresource technology 2010 v.101 no.1 pp. 430-433
- ISSN:
- 0960-8524
- Subject:
- ammonia; catalytic activity; enzymes; nitrification; trichloroethylene
- Abstract:
- ... In the present study, cometabolic TCE degradation was evaluated using NH₄-N as the growth-substrate. At initial TCE concentrations up to 845μg/L, TCE degradation followed first-order kinetics. The increase in ammonium utilization rate favored the degradation of TCE. This ensured that biological transformation of TCE in nitrifying systems is accomplished through a cometabolic pathway by the catalys ...
- DOI:
- 10.1016/j.biortech.2009.07.079
- PubMed:
- 19729301
-
http://dx.doi.org/10.1016/j.biortech.2009.07.079
- Author:
- Xu, Zheng-Yong; Zeng, Guang-Ming; Yang, Zhao-Hui; Xiao, Yong; Cao, Ming; Sun, Hong-Song; Ji, Li-Li; Chen, Ying
- Source:
- Bioresource technology 2010 v.101 no.1 pp. 79-86
- ISSN:
- 0960-8524
- Subject:
- activated sludge; air; biological treatment; biomass; denitrification; denitrifying bacteria; dissolved oxygen; landfill leachates; nitrification; oxidation; temperature; wastewater
- Abstract:
- ... A biological treatment with the integration of partial nitrification, anaerobic ammonium oxidation (Anammox) and heterotrophic denitrification was successfully developed in a SBR with periodical air supply to treat landfill leachate. An operating temperature of 30±1°C and a dissolved oxygen concentration within 1.0-1.5mg/L were maintained in the SBR. First, the mixture of Anammox biomass and aerob ...
- DOI:
- 10.1016/j.biortech.2009.07.082
- PubMed:
- 19699633
-
http://dx.doi.org/10.1016/j.biortech.2009.07.082
- Author:
- Heo, Hyeon Su; Park, Hyun Ju; Park, Young-Kwon; Ryu, Changkook; Suh, Dong Jin; Suh, Young-Woong; Yim, Jin-Heong; Kim, Seung-Soo
- Source:
- Bioresource technology 2010 v.101 no.1 pp. S91
- ISSN:
- 0960-8524
- Subject:
- biogas; sawdust; wood products; furniture; pyrolysis; biomass; fluidized beds
- Abstract:
- ... The amount of waste furniture generated in Korea was over 2.4 million tons in the past 3 years, which can be used for renewable energy or fuel feedstock production. Fast pyrolysis is available for thermo-chemical conversion of the waste wood mostly into bio-oil. In this work, fast pyrolysis of waste furniture sawdust was investigated under various reaction conditions (pyrolysis temperature, partic ...
- DOI:
- 10.1016/j.biortech.2009.06.003
- PubMed:
- 19560915
-
http://dx.doi.org/10.1016/j.biortech.2009.06.003
- Author:
- Kavitha, V.; Radhakrishnan, N.; Madhavacharyulu, E.; Sailakshmi, G.; Sekaran, G.; Reddy, B.S.R.; Rajkumar, G. Suseela; Gnanamani, Arumugam
- Source:
- Bioresource technology 2010 v.101 no.1 pp. 337-343
- ISSN:
- 0960-8524
- Subject:
- biopolymers; biosurfactants; dimerization; enzymes; fatty acids; hydrolysis; instrumentation; marine sediments; microorganisms; odors; tensile strength; triacylglycerols
- Abstract:
- ... The present study demonstrates biopolymer production by in situ bio-based dimerization of fatty acids by microorganism isolated from marine sediments. Microbial isolate grown in Zobell medium in the presence of triglycerides for the period of 24-240h at 37°C, hydrolyze the applied triglycerides and sequentially dimerized the hydrolyzed products and subsequently polymerized and transformed to a bio ...
- DOI:
- 10.1016/j.biortech.2009.08.022
- PubMed:
- 19720526
-
http://dx.doi.org/10.1016/j.biortech.2009.08.022
- Author:
- Chevanan, Nehru; Womac, Alvin R.; Bitra, Venkata S.P.; Igathinathane, C.; Yang, Yuechuan T.; Miu, Petre I.; Sokhansanj, Shahab
- Source:
- Bioresource technology 2010 v.101 no.1 pp. 207-214
- ISSN:
- 0960-8524
- Subject:
- renewable energy sources; biomass; raw materials; Panicum virgatum; Triticum aestivum; wheat straw; Zea mays; corn stover; chopping; particle size; bulk density; compressibility; mathematical models
- Abstract:
- ... Bulk density of comminuted biomass significantly increased by vibration during handling and transportation, and by normal pressure during storage. Compaction characteristics affecting the bulk density of switchgrass, wheat straw, and corn stover chopped in a knife mill at different operating conditions and using four different classifying screens were studied. Mean loose-filled bulk densities were ...
- DOI:
- 10.1016/j.biortech.2009.07.083
- PubMed:
- 19699634
-
http://dx.doi.org/10.1016/j.biortech.2009.07.083
- Author:
- Albrecht, Remy; Petit, Jean Le; Calvert, Virgile; Terrom, Gérard; Périssol, Claude
- Source:
- Bioresource technology 2010 v.101 no.1 pp. 228-233
- ISSN:
- 0960-8524
- Subject:
- organic wastes; inorganic phosphorus; acid phosphatase; windrow composting; sewage sludge; compost maturity; enzyme activity; alkaline phosphatase
- Abstract:
- ... The aim of this work was to study the activity level of alkaline and acid phosphatases during the composting of green wastes and sewage sludge and to determine relationships between biotic and abiotic properties of compost and phosphatase activities. This study has revealed a noticeable separation of phosphomonoesterase activities into two distinct phases during composting. Alkaline and acid phosp ...
- DOI:
- 10.1016/j.biortech.2009.08.017
- PubMed:
- 19733479
-
http://dx.doi.org/10.1016/j.biortech.2009.08.017
- Author:
- Ngo, Thanh-An; Kim, Jinsoo; Kim, Seung-Soo
- Source:
- Bioresource technology 2010 v.101 no.1 pp. S104
- ISSN:
- 0960-8524
- Subject:
- chemical composition; thermogravimetry; biogas; animal husbandry; cattle; cattle manure; pyrolysis; kinetics; biomass
- Abstract:
- ... The kinetic parameters for the pyrolysis of cattle litter were evaluated by thermogravimetric analysis (TGA). The cattle litter was pyrolyzed in a tubing reactor at 340, 360 and 380°C with various retention times from 4 to 20min. The influence of the pyrolysis conditions on the product yields was also examined. The maximum yields of gas and liquid products, 16.1 and 17.2 wt%, respectively, were ob ...
- DOI:
- 10.1016/j.biortech.2009.06.034
- PubMed:
- 19592241
-
http://dx.doi.org/10.1016/j.biortech.2009.06.034
- Author:
- Huang, Xiang-Feng; Guan, Wei; Liu, Jia; Lu, Li-Jun; Xu, Jing-Cheng; Zhou, Qi
- Source:
- Bioresource technology 2010 v.101 no.1 pp. 317-323
- ISSN:
- 0960-8524
- Subject:
- Achromobacter; Brevibacillus; Dietzia; Ochrobactrum; Sphingomonas; bacteria; biosynthesis; emulsions; hydrocarbons; phylogeny; ribosomal DNA; trees
- Abstract:
- ... Based on demulsification performance, twenty biodemulsifier-producing strains were isolated from various environmental sources. Five of them achieved nearly or over 90% of emulsion breaking ratio within 24h. With the aid of biochemical and physiological tests and 16S rDNA analysis, these isolates were classified into eleven genera, in which six genera (Brevibacillus sp., Dietzia sp., Ochrobactrum ...
- DOI:
- 10.1016/j.biortech.2009.07.086
- PubMed:
- 19720525
-
http://dx.doi.org/10.1016/j.biortech.2009.07.086
- Author:
- Park, Hyun Ju; Heo, Hyeon Su; Park, Young-Kwon; Yim, Jin-Heong; Jeon, Jong-Ki; Park, Junhong; Ryu, Changkook; Kim, Seung-Soo
- Source:
- Bioresource technology 2010 v.101 no.1 pp. S83
- ISSN:
- 0960-8524
- Subject:
- calcium oxide; chlorine; sewage sludge; catalysts; biofuels; pyrolysis; biomass; fluidized beds
- Abstract:
- ... Fast pyrolysis of sewage sludge was carried out under different reaction conditions, and its effects on bio-oil characteristics were studied. The effect of metal oxide catalysts on the removal of chlorine in the bio-oil was also investigated for four types of catalysts. The optimal pyrolysis temperature for bio-oil production was found to be 450°C, while much smaller and larger feed sizes adversel ...
- DOI:
- 10.1016/j.biortech.2009.06.103
- PubMed:
- 19635664
-
http://dx.doi.org/10.1016/j.biortech.2009.06.103
- Author:
- Bernhart, M.; Fasina, O.O.; Fulton, J.; Wood, C.W.
- Source:
- Bioresource technology 2010 v.101 no.1 pp. 234-238
- ISSN:
- 0960-8524
- Subject:
- water content; poultry manure; transportation; value added
- Abstract:
- ... Poultry litter, a combination of accumulated chicken manure, feathers and bedding materials, is a potential feedstock for bioenergy and other value-added applications. The use of this waste product has been historically limited to within few miles of the place of generation because of its inherent low density. Compaction is one possible way to enhance the storage and transportation of the litter. ...
- DOI:
- 10.1016/j.biortech.2009.08.030
- PubMed:
- 19733062
-
http://dx.doi.org/10.1016/j.biortech.2009.08.030