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You searched for: Journal Bioresource technology Remove constraint Journal: Bioresource technology Publication Year 2013 Remove constraint Publication Year: 2013 Source 2013 v.144 Remove constraint Source: 2013 v.144
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1. Acidic and alkaline pretreatments of activated carbon and their effects on the performance of air-cathodes in microbial fuel cells

Author:
Wang, Xin; Gao, Ningshengjie; Zhou, Qixing; Dong, Heng; Yu, Hongbing; Feng, Yujie
Source:
Bioresource technology 2013 v.144 pp. 632-636
ISSN:
0960-8524
Subject:
activated carbon; catalysts; corrosion; hydroxides; ions; microbial fuel cells; oxygen; powders; protons; stainless steel; temperature
Abstract:
... Activated carbon (AC) is a high performing and cost effective catalyst for oxygen reduction reactions (ORRs) of air-cathodes in microbial fuel cells (MFCs). Acidic (HNO3) and alkaline (KOH) pretreatments on AC at low temperature (85°C) are conducted to enhance the performance of MFCs. The alkaline pretreatment increased the power density by 16% from 804±70 to 957±31mWm−2, possibly due to the decre ...
DOI:
10.1016/j.biortech.2013.07.022

2. Acute impact of erythromycin and tetracycline on the kinetics of nitrification and organic carbon removal in mixed microbial culture

Author:
Katipoglu-Yazan, Tugce; Pala-Ozkok, Ilke; Ubay-Cokgor, Emine; Orhon, Derin
Source:
Bioresource technology 2013 v.144 pp. 410-419
ISSN:
0960-8524
Subject:
biomass; carbon; erythromycin; mixed culture; models; nitrification; nitrites; oxidation; sludge; stoichiometry; tetracycline
Abstract:
... The study evaluated acute impact of erythromycin and tetracycline on nitrification and organic carbon removal kinetics in mixed microbial culture. Acclimated biomass was obtained from a fill and draw reactor fed with peptone mixture selected as synthetic substrate and operated at a sludge age of 10days. Acute inhibition was tested in batch reactors involving a control unit started solely with subs ...
DOI:
10.1016/j.biortech.2013.06.121

3. Adsorption, inhibition, and biotransformation of ciprofloxacin under aerobic conditions

Author:
Liu, Zhanguang; Sun, Peizhe; Pavlostathis, Spyros G.; Zhou, Xuefei; Zhang, Yalei
Source:
Bioresource technology 2013 v.144 pp. 644-651
ISSN:
0960-8524
Subject:
adsorption; aerobic conditions; antibiotics; biotransformation; ciprofloxacin; microbial activity; piperazine; poultry manure
Abstract:
... The adsorption, inhibition, and biotransformation of the fluoroquinolone antibiotic ciprofloxacin (CIP) under aerobic conditions were investigated in this study. The maximum adsorption capacity and the Langmuir constant were 37.9mgCIP/gVSS and 37L/g, respectively. A glucose-fed aerobic culture was inhibited by CIP at 10mg/L or higher and the degree of inhibition increased with increasing CIP conce ...
DOI:
10.1016/j.biortech.2013.07.031

4. Aerobic biodegradation process of petroleum and pathway of main compounds in water flooding well of Dagang oil field

Author:
Cai, Minmin; Yao, Jun; Yang, Huaijun; Wang, Ruixia; Masakorala, Kanaji
Source:
Bioresource technology 2013 v.144 pp. 100-106
ISSN:
0960-8524
Subject:
alcohols; aldehydes; alkanes; aromatic acids; biodegradation; fatty acids; in vitro culture; ketones; naphthenates; oils; oxidation; petroleum; polycyclic aromatic hydrocarbons; water analysis; wells
Abstract:
... Aerobic biodegradation of crude oil and its pathways were investigated via in vitro culture and GC–MS analysis in water flooding wells of Dagang oil field. The in vitro aerobic culture lasted 90days when 99.0% of n-alkanes and 43.03–99.9% of PAHs were degraded and the biomarkers and their ratios were changed. The spectra of components in the residual oil showed the similar biodegradation between a ...
DOI:
10.1016/j.biortech.2013.06.082

5. A low-cost culture medium for the production of Nannochloropsis gaditana biomass optimized for aquaculture

Author:
Camacho-Rodríguez, J.; Cerón-García, M.C.; González-López, C.V.; Fernández-Sevilla, J.M.; Contreras-Gómez, A.; Molina-Grima, E.
Source:
Bioresource technology 2013 v.144 pp. 57-66
ISSN:
0960-8524
Subject:
Nannochloropsis; aquaculture feeds; biomass; culture media; eicosapentaenoic acid; microalgae; nitrogen content; nutrient content; phosphorus; protein content; protein value
Abstract:
... Nannochloropsis gaditana is a microalga with a high nutritional value and a protein and polyunsaturated fatty acid (PUFA) content that makes it interesting as a feed in aquaculture. To maximize its productivity and nutritional value in large-scale culture, a well-known commercial medium was optimized to the most favorable nutrient level using commercial fertilizers. Optimal growth conditions were ...
DOI:
10.1016/j.biortech.2013.06.083

6. Anaerobic digestion for treatment of stillage from cellulosic bioethanol production

Author:
Tian, Zhuoli; Mohan, Gayathri Ram; Ingram, Lonnie; Pullammanappallil, Pratap
Source:
Bioresource technology 2013 v.144 pp. 387-395
ISSN:
0960-8524
Subject:
anaerobic digestion; chemical oxygen demand; ethanol; ethanol production; feedstocks; filtrates; methane; screening; sugarcane bagasse
Abstract:
... Thermophilic anaerobic digestion of stillage from a cellulosic ethanol process that uses sugarcane bagasse as feedstock was investigated. A biochemical methane potential (BMP) of 200ml CH4 at STP (gVS)−1 was obtained. The whole stillage was separated into two fractions: a fraction retained on 0.5mm screen called residue and a fraction passing through 0.5mm screen called filtrate. About 70% of tota ...
DOI:
10.1016/j.biortech.2013.06.119

7. Analysis of oxygen reduction and microbial community of air-diffusion biocathode in microbial fuel cells

Author:
Wang, Zejie; Zheng, Yue; Xiao, Yong; Wu, Song; Wu, Yicheng; Yang, Zhaohui; Zhao, Feng
Source:
Bioresource technology 2013 v.144 pp. 74-79
ISSN:
0960-8524
Subject:
Pseudomonadales; Rhizobiales; bacteria; biofilm; electrodes; microbial communities; microbial fuel cells; oxygen; plankton
Abstract:
... Microbes play irreplaceable role in oxygen reduction reaction of biocathode in microbial fuel cells (MFCs). In this study, air-diffusion biocathode MFCs were set up for accelerating oxygen reduction and microbial community analysis. Linear sweep voltammetry and Tafel curve confirmed the function of cathode biofilm to catalyze oxygen reduction. Microbial community analysis revealed higher diversity ...
DOI:
10.1016/j.biortech.2013.06.093

8. Analysis of the stability of high-solids anaerobic digestion of agro-industrial waste and sewage sludge

Author:
Aymerich, E.; Esteban-Gutiérrez, M.; Sancho, L.
Source:
Bioresource technology 2013 v.144 pp. 107-114
ISSN:
0960-8524
Subject:
agricultural wastes; alkalinity; ammonium nitrogen; anaerobic digesters; anaerobic digestion; methane production; sewage sludge; volatile fatty acids
Abstract:
... The pilot-scale high-solids anaerobic digestion (HS-AD) of agro-industrial wastes and sewage sludge was analysed in terms of stability by monitoring the most common parameters used to check the performance of anaerobic digesters, i.e. Volatile Fatty Acids (VFA), ammonia nitrogen, pH, alkalinity and methane production. The results reflected similar evolution for the parameters analysed, except for ...
DOI:
10.1016/j.biortech.2013.06.074

9. An integrated microalgal growth model and its application to optimize the biomass production of Scenedesmus sp. LX1 in open pond under the nutrient level of domestic secondary effluent

Author:
Wu, Yin-Hu; Li, Xin; Yu, Yin; Hu, Hong-Ying; Zhang, Tian-Yuan; Li, Feng-Min
Source:
Bioresource technology 2013 v.144 pp. 445-451
ISSN:
0960-8524
Subject:
Scenedesmus; biomass production; culture media; effluents; growth models; light intensity; microalgae; nitrogen; nutrient content; phosphorus; ponds; wastewater treatment
Abstract:
... Microalgal growth is the key to the coupled system of wastewater treatment and microalgal biomass production. In this study, Monod model, Droop model and Steele model were incorporated to obtain an integrated growth model describing the combined effects of nitrogen, phosphorus and light intensity on the growth rate of Scenedesmus sp. LX1. The model parameters were obtained via fitting experimental ...
DOI:
10.1016/j.biortech.2013.06.065

10. An interactive study of influential parameters for shikimic acid production using statistical approach, scale up and its inhibitory action on different lipases

Author:
Rawat, Garima; Tripathi, Priyanka; Yadav, Sweta; Saxena, R.K.
Source:
Bioresource technology 2013 v.144 pp. 675-679
ISSN:
0960-8524
Subject:
Citrobacter freundii; acid hydrolysis; bioreactors; diet; drugs; humans; microorganisms; obesity; shikimic acid; statistical models; swine influenza; triacylglycerol lipase; triacylglycerols
Abstract:
... Shikimic acid is the promising candidate as a building block for the industrial synthesis of drug Tamiflu used for the treatment of Swine flu. The fermentative production process using microbes present an excellent and even more sustainable alternative to the traditional plants based extraction methods. In the present study, the fermentative production of shikimic acid by Citrobacter freundii GR-2 ...
DOI:
10.1016/j.biortech.2013.06.113

11. A novel anaerobic co-culture system for bio-hydrogen production from sugarcane bagasse

Author:
Cheng, Jingrong; Zhu, Mingjun
Source:
Bioresource technology 2013 v.144 pp. 623-631
ISSN:
0960-8524
Subject:
Clostridium thermocellum; Thermoanaerobacterium aotearoense; alkalis; coculture; hydrogen production; production technology; sugarcane bagasse
Abstract:
... A novel co-culture of Clostridium thermocellum and Thermoanaerobacterium aotearoense with pretreated sugarcane bagasse (SCB) under mild alkali conditions for bio-hydrogen production was established, exhibiting a cost-effective and synergetic advantage in bio-hydrogen production over monoculture of C. thermocellum or T. aotearoense with untreated SCB. The optimized pretreatment conditions were esta ...
DOI:
10.1016/j.biortech.2013.07.018

12. Assessing removal efficiency of dissolved organic matter in wastewater treatment using fluorescence excitation emission matrices with parallel factor analysis and second derivative synchronous fluorescence

Author:
Yu, Huibin; Song, Yonghui; Tu, Xiang; Du, Erdeng; Liu, Ruixia; Peng, Jianfeng
Source:
Bioresource technology 2013 v.144 pp. 595-601
ISSN:
0960-8524
Subject:
bacteria; dissolved organic matter; emissions; fluorescence; monitoring; tanks; wastewater; wastewater treatment
Abstract:
... To assess removal efficiency of dissolved organic matter (DOM) in the wastewater treatment plant (WWTP), fluorescence excitation emission matrices (EEM) with parallel factor analysis (PARAFAC) and second derivative synchronous fluorescence (SDSF) were used for the characterization of DOM in wastewater. In A2/O process, tryptophan-like and tyrosine-like materials were removed to the much greater ex ...
DOI:
10.1016/j.biortech.2013.07.025

13. Benefit of sodium hydroxide pretreatment of ensiled sorghum forage on the anaerobic reactor stability and methane production

Author:
Sambusiti, C.; Ficara, E.; Malpei, F.; Steyer, J.P.; Carrère, H.
Source:
Bioresource technology 2013 v.144 pp. 149-155
ISSN:
0960-8524
Subject:
anaerobic digestion; forage; methane production; sodium hydroxide; tanks
Abstract:
... The assessment of the pretreatment effect on the anaerobic digestion process is generally based on the results of batch tests, which may fail in truly predicting full-scale anaerobic reactors performance. Therefore, in this study, the effect of alkaline pretreatment on the anaerobic digestion of ensiled sorghum forage was evaluated by comparing the results of two semi-continuous CSTR (Continuously ...
DOI:
10.1016/j.biortech.2013.06.095

14. Bioaugmentation for treating transient 4-fluorocinnamic acid shock loads in a rotating biological contactor

Author:
Amorim, Catarina L.; Duque, Anouk F.; Afonso, Carlos M.M.; Castro, Paula M.L.
Source:
Bioresource technology 2013 v.144 pp. 554-562
ISSN:
0960-8524
Subject:
acids; bacteria; bacterial communities; biofilm; erythrocytes; gel electrophoresis; mineralization
Abstract:
... A rotating biological contactor (RBC) was used to treat shock loadings of 4-fluorocinnamic acid (4-FCA). Intermittent 4-FCA shocks of 35mgL−1 were applied (ca. 3months) with only limited mineralization occurring and accumulation of 4-fluorobenzoate (4-FBA) as an intermediate. After bioaugmentation with a degrading bacterium the RBC was able to deal with 4-FCA intermittent loading of 80mgL−1 howeve ...
DOI:
10.1016/j.biortech.2013.07.010

15. Biohydrogen production from microalgal biomass: Energy requirement, CO2 emissions and scale-up scenarios

Author:
Ferreira, Ana F.; Ortigueira, Joana; Alves, Luís; Gouveia, Luísa; Moura, Patrícia; Silva, Carla
Source:
Bioresource technology 2013 v.144 pp. 156-164
ISSN:
0960-8524
Subject:
Clostridium butyricum; Scenedesmus obliquus; biohydrogen; biomass; culture media; emissions; energy; energy requirements; fermentation; fuel cells; hydrogen production; life cycle inventory; microalgae; ponds; production technology; raceways
Abstract:
... This paper presents a life cycle inventory of biohydrogen production by Clostridium butyricum through the fermentation of the whole Scenedesmus obliquus biomass. The main purpose of this work was to determine the energy consumption and CO2 emissions during the production of hydrogen. This was accomplished through the fermentation of the microalgal biomass cultivated in an outdoor raceway pond and ...
DOI:
10.1016/j.biortech.2013.06.079

16. Biological decolorization of malachite green by Deinococcus radiodurans R1

Author:
Lv, Guo-Ying; Cheng, Jian-Hui; Chen, Xiao-Yang; Zhang, Zuo-Fa; Fan, Lei-Fa
Source:
Bioresource technology 2013 v.144 pp. 275-280
ISSN:
0960-8524
Subject:
benzophenones; temperature; decolorization; Deinococcus radiodurans; microorganisms; phenol; toxicity testing; malachite green; pH; biodegradation; toxicity; mass spectrometry; gas chromatography
Abstract:
... Cultures of Deinococcus radiodurans R1 were observed to decolorize malachite green (MG) dye. The effects of various factors on decolorization efficiency were investigated. The optimal decolorization temperature and pH ranges were 25–50°C and 6.0–8.0, respectively. With increasing initial MG concentration, the decolorization efficiency decreased, and the kinetic parameters, RMG,max and Km were 416. ...
DOI:
10.1016/j.biortech.2013.07.003

17. Biological pretreatment of corn stover with ligninolytic enzyme for high efficient enzymatic hydrolysis

Author:
Wang, Feng-Qin; Xie, Hui; Chen, Wei; Wang, En-Tao; Du, Feng-Guang; Song, An-Dong
Source:
Bioresource technology 2013 v.144 pp. 572-578
ISSN:
0960-8524
Subject:
X-ray diffraction; acetic acid; biotransformation; cellulases; cellulose; corn; corn stover; crop yield; enzymatic hydrolysis; enzyme inhibition; furfural; hydrolysis; lignin; sugars; washing
Abstract:
... Aiming at increasing the efficiency of transferring corn stover into sugars, a biological pretreatment was developed and investigated in this study. The protocol was characterized by the pretreatment with crude ligninolytic enzymes from Phanerochete chrysosporium and Coridus versicolor to break the lignin structure in corn stover, followed by a washing procedure to eliminate the inhibition of lign ...
DOI:
10.1016/j.biortech.2013.07.012

18. Biotransformation of benzimidazole anthelmintics in reed (Phragmites australis) as a potential tool for their detoxification in environment

Author:
Podlipná, Radka; Skálová, Lenka; Seidlová, Helena; Szotáková, Barbora; Kubíček, Vladimír; Stuchlíková, Lucie; Jirásko, Robert; Vaněk, Tomáš; Vokřál, Ivan
Source:
Bioresource technology 2013 v.144 pp. 216-224
ISSN:
0960-8524
Subject:
Phragmites australis; albendazole; benzimidazole; biochemical pathways; biotransformation; ecotoxicology; environmental impact; excretion; flubendazole; helminths; metabolites; nontarget organisms; phytoremediation; veterinary medicine
Abstract:
... Benzimidazole anthelmintics, the drugs against parasitic worms, are widely used in human as well as veterinary medicine. Following excretion, these substances may persist in the environment and impact non-target organisms. In order to test phytoremediation as a possible tool for detoxification of anthelmintics in environment, the biotransformation pathways of albendazole (ABZ) and flubendazole (FL ...
DOI:
10.1016/j.biortech.2013.06.105

19. Calibration of hydrodynamic behavior and biokinetics for TOC removal modeling in biofilm reactors under different hydraulic conditions

Author:
Zeng, Ming; Soric, Audrey; Roche, Nicolas
Source:
Bioresource technology 2013 v.144 pp. 202-209
ISSN:
0960-8524
Subject:
biodegradation; biofilm; carbon; computer software; filters; glass; hydrodynamics; models; specific growth rate
Abstract:
... In this study, total organic carbon (TOC) biodegradation was simulated by GPS-X software in biofilm reactors with carriers of plastic rings and glass beads under different hydraulic conditions. Hydrodynamic model by retention time distribution and biokinetic measurement by in-situ batch test served as two significant parts of model calibration. Experimental results showed that TOC removal efficien ...
DOI:
10.1016/j.biortech.2013.06.111

20. CO2 gasification reactivity of biomass char: Catalytic influence of alkali, alkaline earth and transition metal salts

Author:
Lahijani, Pooya; Zainal, Zainal Alimuddin; Mohamed, Abdul Rahman; Mohammadi, Maedeh
Source:
Bioresource technology 2013 v.144 pp. 288-295
ISSN:
0960-8524
Subject:
activation energy; alkaline earth metals; alkalis; biomass; carbon; catalysts; gasification; models; nitrates; pistachios; thermogravimetry
Abstract:
... This study investigates the influence of alkali (Na, K), alkaline earth (Ca, Mg) and transition (Fe) metal nitrates on CO2 gasification reactivity of pistachio nut shell (PNS) char. The preliminary gasification experiments were performed in thermogravimetric analyzer (TGA) and the results showed considerable improvement in carbon conversion; Na-char>Ca-char>Fe-char>K-char>Mg-char>raw char. Based o ...
DOI:
10.1016/j.biortech.2013.06.059