Abstract:
:Cr(VI) is considered to be potentially carcinogenic to humans. Removal of Cr(VI) ions from aqueous solution under different conditions was investigated using activated alumina (AA) and activated charcoal (AC) as adsorbents. Batch mode experiments were conducted to study the effects of adsorbent dose, contact time, pH, temperature and initial concentration of Cr(VI). Results showed that the adsorption of Cr(VI) depended significantly on pH and temperature. Equilibrium studies showed that Cr(VI) had a high affinity for AA at pH 4 and AC at pH 2. For AA, maximum adsorption was found at 25 degrees C, indicating exothermic adsorption, while for AC, maximum adsorption was at 40 degrees C. Freundlich and Langmuir adsorption isotherms were also applied and they showed good fits to the experimental data. The results suggest that both AA and AC could be used as effective adsorbents for the removal of Cr(VI) ions.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Mor S,Ravindra K,Bishnoi NRdoi
10.1016/j.biortech.2006.03.018subject
Has Abstractpub_date
2007-03-01 00:00:00pages
954-7issue
4eissn
0960-8524issn
1873-2976pii
S0960-8524(06)00132-5journal_volume
98pub_type
杂志文章abstract::Novel biochemical approaches remain to be developed to improve microbial lipid technology. This study demonstrated that sulfate limitation was effective to promote accumulating substantial amounts of intracellular lipid by the oleaginous yeast Rhodosporidium toruloides Y4. When it was cultivated using a medium with an...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2010.09.033
更新日期:2011-01-01 00:00:00
abstract::The larvicidal effects of the essential oils extracted from the leaves of Cryptomeria japonica at different ages (58, 42, and 26 years old) against 2 mosquito species, Aedes aegypti and Aedes albopictus, were studied. The analysis of major constituents of these essential oils was also investigated. Results obtained fr...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2007.11.060
更新日期:2009-01-01 00:00:00
abstract::Constructing anti-fouling and self-cleaning membrane surfaces based on covalent attachment of trypsin on poly(methacrylic acid)-graft-polyethersulfone (PMAA-g-PES) membrane was reported. The carboxylic acid groups enriched on asymmetric PMAA-g-PES membrane surface were activated with 1-ethyl-(3-3-dimethylaminopropyl)-...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2010.08.030
更新日期:2011-01-01 00:00:00
abstract::Paracoccus versutus LYM was characterized with the ability of simultaneous nitrification and denitrification (SND) in presence of NH4(+)-N and NO3(-)-N (140mg/L-N each). However, there was approximate 95.80mg/L NO2(-)-N left during SND process. Fe(2+) was added in the SND medium and it benefited bacterial growth and f...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2014.10.016
更新日期:2015-01-01 00:00:00
abstract::A novel stepwise pretreatment of combination of fungal treatment with liquid hot water (LHW) treatment was conducted to enhance the enzymatic hydrolysis of Populus tomentosa. The results showed that lignin and cellulose increased with the elevating temperature, while significant amount of hemicellulose was degraded du...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2011.12.116
更新日期:2012-03-01 00:00:00
abstract::The responses of two different types of aerobic granules to storage, granule A seeded with activated sludge flocs and granule B seeded with pellets (cells), were investigated in this study. After 3-week storage, the surface of granule B remained compact and smooth while obvious crevices were observed on that of granul...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2010.05.062
更新日期:2010-11-01 00:00:00
abstract::Pseudomonas sp. C27 is a facultative autotrophic bacterium that can grow mixotrophically to undergo denitrifying sulfide removal (DSR) reactions with both organic matters and sulfide as electron donors. A detailed understanding of how the C27 strain simultaneously removes nitrogen, sulfur and carbon from water is crit...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2019.122169
更新日期:2019-12-01 00:00:00
abstract::Both dilute and concentrated vinasse can be spread on agricultural fields or used as organic fertilizer. The effects of different characteristics of the original raw material on the biochemical composition of vinasse and their C and N mineralization in soil were investigated. Vinasse samples were obtained from similar...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2007.04.012
更新日期:2008-04-01 00:00:00
abstract::Spent-medium bioleaching of V and Ni from a power plant residual ash (PPR ash) was conducted using organic acids produced by Aspergillus niger. The production of organic acids in a bubble column bioreactor was optimized through selecting three most influencing factors. Under optimum condition of aeration rate of 762.5...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2016.05.114
更新日期:2016-09-01 00:00:00
abstract::A new pretreatment method of lignocellulosic biomass was explored by using a wet aerobic process with an alkaline lignin and a mineral salt solution. This treatment significantly improved structural modification of rape straw used as substrate model in this study. Change in cellulose accessibility to cellulase of rape...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2017.03.142
更新日期:2017-08-01 00:00:00
abstract::To acquire microbial consortia with effectively precedent degradation of lignin, samples obtained from rotten trunks, rotten stumps and soil near it were screened and isolated after generations of subculture. The dynamic change illustrated that their community structures were affected by pH and tended to be stable aft...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2018.01.058
更新日期:2018-04-01 00:00:00
abstract::Hydrogen production during dark fermentation is inhibited by the co-production of volatile fatty acids (VFAs) such as acetic and n-butyric acid. In this study, the effectiveness of conventional electrodialysis (CED) in reducing VFA concentrations in model solutions and hydrogen fermentation broths is evaluated. This i...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2015.04.001
更新日期:2015-08-01 00:00:00
abstract::Sodium hydroxide (NaOH) and calcium hydroxide (Ca(OH)2) respectively dissolved in water and 70% glycerol were applied to treat sugarcane bagasse (SCB) under the condition of 80°C for 2h. NaOH solutions could remove more lignin and obtain higher enzymatic hydrolysis efficiency of SCB than Ca(OH)2 solutions. Compared wi...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2017.08.101
更新日期:2017-11-01 00:00:00
abstract::This contribution examines the technical feasibility of producing high added value probiotic biomass from deproteinized and non-supplemented milk whey. The kinetics of growth of Lactobacillus casei in deproteinized goat milk whey was analyzed. Experiments in batch, continuous and fed-batch conditions were conducted in...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2009.10.047
更新日期:2010-04-01 00:00:00
abstract::This study has assessed four invasive weeds, viz. Saccharum spontaneum (SS), Mikania micrantha (MM), Lantana camara (LC) and Eichhornia crassipes (EC) for enzymatic hydrolysis prior to bioalcohol fermentation. Enzymatic hydrolysis of pretreated biomasses of weeds has been conducted with mechanical agitation and sonica...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2016.02.024
更新日期:2016-08-01 00:00:00
abstract::This study evaluates the effect of sodium (Na(+)) concentration on the growth and PHB production by Cupriavidus necator. Both biomass growth and PHB production were inhibited by Na(+): biomass growth became zero at 8.9 g/L Na(+) concentration while PHB production was completely stopped at 10.5 g/L Na(+). A mathematica...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2015.04.110
更新日期:2015-09-01 00:00:00
abstract::Municipal solid wastes incineration (MSWI) flue gas was employed as the carbon source for in-situ calcium removal from MSWI leachate. Calcium removal efficiency was 95-97% with pH of 10.0-11.0 over 100min of flue gas aeration, with both bound Ca and free Ca being removed effectively. The fluorescence intensity of tryp...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2017.03.048
更新日期:2017-09-01 00:00:00
abstract::Production of polyhydroxyalkanoates (PHAs) in activated sludge treating wastewater represents an economical and environmental promising alternative to pure culture fermentations. A process for production of PHA from a paper mill wastewater was examined at laboratory scale. The three stage process examined consisted of...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2007.01.020
更新日期:2008-02-01 00:00:00
abstract::Laccase production by the white-rot fungus Trametes versicolor (CBS100.29) grown in submerged cultures was studied. Addition of different insoluble lignocellulosic materials into the culture medium in order to enhance laccase production was investigated. The lignocellulosic materials were grape seeds, grape stalks and...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/s0960-8524(01)00176-6
更新日期:2002-04-01 00:00:00
abstract::A simple technique, REMI (restriction enzyme-mediated integration), was used to construct transformants of Trichoderma atroviride with improved capability of degrading organophosphate pesticide dichlorvos. Linearized DNA of plasmid pV2 bearing the hygromycin B phosphotransferase (hph) gene was inserted into chromosome...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2008.05.022
更新日期:2009-01-01 00:00:00
abstract::The present work is the first detailed study, which is about the performance of CW after MFC integration with it. The experiments were run in open and closed circuit mode for assessment purpose. The findings of this study indicate towards a more practical application of MFC in wastewater treatment along with electrici...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2015.05.072
更新日期:2015-11-01 00:00:00
abstract::The dual digestion process was investigated using sludge samples collected at the WWTP of Tomaszow Mazowiecki (Poland). Mixed sludge was treated in a laboratory setup under batch and semi-continuous conditions. Dual digestion with a 1d SRT aerobic thermophilic pretreatment followed by an anaerobic step with 20 d of SR...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2006.05.017
更新日期:2007-04-01 00:00:00
abstract::The aim of the present study was to determine whether the radical reaction intermediates--reactive oxygen species (ROS) were formed during the laccase-catalyzed oxidation of wood fibers from Chinese fir (Cunninghamia lanceolata) and to quantify tentatively its production with electron spin resonance (ESR) spectrometry...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2008.06.010
更新日期:2009-01-01 00:00:00
abstract::The growths of the African catfish (Clarias gariepinus) and water spinach (Ipomoea aquatica) were evaluated in recirculation aquaponic system (RAS). Fish production performance, plant growth and nutrient removal were measured and their dependence on hydraulic loading rate (HLR) was assessed. Fish production did not di...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2009.09.040
更新日期:2010-03-01 00:00:00
abstract::The catalytic activity of engineered biochar was scrutinized for generation of glucose and hydroxymethylfurfural (HMF) from starch-rich food waste (bread, rice, and spaghetti). The biochar catalysts were synthesized by chemical activation of pinewood sawdust with phosphoric acid at 400-600 °C. Higher activation temper...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2018.07.048
更新日期:2018-11-01 00:00:00
abstract::Substrate leaching experiments were performed to study the relative leaching potential of pendimethalin in various types of soil matrices. Pendimethalin leaching showed up to a depth of 30 cm in all the studied soil matrices, irrespective of pH conditions used. The leaching potential of pendimethalin was assessed at v...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2006.09.049
更新日期:2007-11-01 00:00:00
abstract::In this study, macro-mesoporous silica spheres were prepared with a micro-device and used as the support for the immobilization of penicillin G acylase (PGA). To measure the enzymatic activity, the silica spheres with immobilized PGA were placed into a packed-bed reactor, in which the hydrolysis of penicillin G was ca...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2010.09.076
更新日期:2011-01-01 00:00:00
abstract::Previously reported water footprints (WFPs) of corn ethanol have been estimated based on the assumption that corn ethanol feedstock could be supplied by the same states where the corn is grown. However, ethanol conversion facilities may choose out-of-state feedstock suppliers depending on the total price of feedstock ...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2010.12.041
更新日期:2011-04-01 00:00:00
abstract::In this work, a thermogravimetric analyser was used to assess the pyrolysis kinetics of pineapple, orange and mango peel wastes and agro-industrial by-products, rice husk and pine wood. Five isoconversional methods (KAS, FWO, Starink, Vyazovkin and Friedman) and one model-fitting method (DAEM) accurately fitted the ex...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2019.121485
更新日期:2019-09-01 00:00:00
abstract::This study sought to investigate the growth rate and organic carbon and nutrient removal efficiency of Chlorella sorokiniana under autotrophic, heterotrophic and mixotrophic conditions. Growth rates of the microalgae were 0.24 d(-1), 0.53 d(-1) and 0.44 d(-1) in autotrophic, heterotrophic and mixotrophic conditions, r...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2013.06.068
更新日期:2013-09-01 00:00:00