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- 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
-
https://dx.doi.org/10.1016/j.biortech.2013.07.022
- 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
-
https://dx.doi.org/10.1016/j.biortech.2013.06.121
- 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
-
https://dx.doi.org/10.1016/j.biortech.2013.07.031
- 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
-
https://dx.doi.org/10.1016/j.biortech.2013.06.082
- 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
-
https://dx.doi.org/10.1016/j.biortech.2013.06.083
- 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
-
https://dx.doi.org/10.1016/j.biortech.2013.06.119
- 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
-
https://dx.doi.org/10.1016/j.biortech.2013.06.093
- 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
-
https://dx.doi.org/10.1016/j.biortech.2013.06.074
- 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
-
https://dx.doi.org/10.1016/j.biortech.2013.06.065
- 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
-
https://dx.doi.org/10.1016/j.biortech.2013.06.113
- 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
-
https://dx.doi.org/10.1016/j.biortech.2013.07.018
- 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
-
https://dx.doi.org/10.1016/j.biortech.2013.07.025
- 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
-
https://dx.doi.org/10.1016/j.biortech.2013.06.095
- 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
-
https://dx.doi.org/10.1016/j.biortech.2013.07.010
- 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
-
https://dx.doi.org/10.1016/j.biortech.2013.06.079
- 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
-
https://dx.doi.org/10.1016/j.biortech.2013.07.003
- 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
-
https://dx.doi.org/10.1016/j.biortech.2013.07.012
- 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
-
https://dx.doi.org/10.1016/j.biortech.2013.06.105
- 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
-
https://dx.doi.org/10.1016/j.biortech.2013.06.111
- 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
-
https://dx.doi.org/10.1016/j.biortech.2013.06.059