Abstract：
:The aim of this paper was to determine the effect of two different membrane bioreactor (MBR) configurations (external/immersed) on sludge structure and microbial activity. Sludge structure was deduced from rheological measurements. The high shear stress induced by the recirculation pump in the external MBR was shown to result in decreasing viscosity due to activated sludge (AS) deflocculation. Besides, soluble microbial products (SMP) release was higher in the external MBR (5 mgCOD gMLVSS(-1)) than in the immersed configuration (2 mgCOD gMLVSS(-1)). Microbial activity was followed from respirometry tests by focusing on the distinction between heterotrophs and autotrophs. An easier autotrophic microbe development was then observed in the immersed MBR compared to the external one. However, the external MBR was shown to allow better heterotrophic microbe development.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Clouzot L,Roche N,Marrot Bdoi
10.1016/j.biortech.2010.09.058subject
Has Abstractpub_date
2011-01-01 00:00:00pages
975-81issue
2eissn
0960-8524issn
1873-2976pii
S0960-8524(10)01571-3journal_volume
102pub_type
杂志文章abstract：:Rice straw was used as a carbon source in a denitrifying bioreactor, for the removal of nutrients from agricultural drainage. Nutrient removal efficiency was evaluated by: (a) nutrient loading rates (low, medium, and high); (b) hydraulic retention time, and (c) comparison with another carbon source (woodchip). The res...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.09.083
更新日期：2015-12-01 00:00:00
abstract：:The aim of this study was to investigate the potential of using wood hydrolysates (enzymatically hydrolyzed from hybrid poplar) as substrate to produce polyhydroxybutyrate (PHB) using mixed microbial cultures. The optimal operational conditions for fed-batch bioreactors were 4d solid retention time with an organic loa...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2014.10.049
更新日期：2015-01-01 00:00:00
abstract：:Four nutrient limitation cultures, namely monosodium glutamate (MSG-L), phosphate (P-L), ammonium sulfate (NH4(+)-L) and double (D-L, MSG and P limitation) limited, were designed to study how cell growth and biochemical components of Schizochytrium sp. were affected by nutrient limitations. All limited conditions caus...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2014.02.106
更新日期：2014-05-01 00:00:00
abstract：:Goal of this work was to study the effect of sample weight and temperature on the microbial respiration indices of a static microbial respiration test used to quantify compost stability. The static respiration tests (SRT) were performed at two different temperatures (20°C and 35°C) using five different sample weights ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.06.087
更新日期：2012-10-01 00:00:00
abstract：:A biodegradation facilitator which catalyzes the initial steps of 4-chlorophenol (4-CP) oxidation was prepared by immobilizing multiple enzymes (monooxygenase, CphC-I and dioxygenase, CphA-I) onto a natural inorganic support. The enzymes were obtained via overexpression and purification after cloning the corresponding...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2018.03.066
更新日期：2018-07-01 00:00:00
abstract：:The flocculated solid fraction of olive mill wastewaters, obtained from two different olive oil extraction systems (FOMW1 and FOMW2) was composted, with olive leaves (OL) as bulking agent, by the static pile system (Rutgers). The dynamic of organic matter (OM) degradation during composting and its relationship with th...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/s0960-8524(02)00106-2
更新日期：2003-01-01 00:00:00
abstract：:A bacterial strain capable of producing a thermo-acido-tolerant phytase was isolated from soil around haystacks and designated as strain PH01. The phytase produced was purified to homogeneity as determined by native PAGE. From SDS-PAGE, it was 30 kDa in size. The purified phytase was a thermo-acido-tolerant enzyme. A ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/s0960-8524(02)00236-5
更新日期：2003-05-01 00:00:00
abstract：:Low concentrations of acetic acid were used as carbon source to cultivate Cryptococcus curvatus MUCL 29819 for lipid production under high content of ammonia. Phosphorus limitation combined with initial pH regulation (pH = 6) weakened inhibition of free ammonia and promoted lipid accumulation. In batch cultivation, th...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2018.04.063
更新日期：2018-08-01 00:00:00
abstract：:Phytase production by Aspergillus niger F3 by solid state fermentation (SSF) on citrus peel was evaluated at pilot scale under different aeration conditions. The best airflow intensity was 1 VkgM (Lair kg medium(-1) min(-1)), which allowed to produce 65 units of phytases per gram in dry basis (65 Ug(-1) d.b.) as it re...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.05.032
更新日期：2012-08-01 00:00:00
abstract：:Fermentative H(2) production in an upflow anaerobic sludge blanket reactor (UASB) at various pH values was investigated in this study. Experimental results show that the H(2) partial pressure in biogas, H(2) production rate and H(2) yield were all pH-dependent, in the range of 0.25-0.52 atm, 42-145 ml-H(2) l(-1) h(-1)...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2007.02.005
更新日期：2008-03-01 00:00:00
abstract：:Fed-batch culture and the transformation conditions of Haematococcus pluvialis in a 5L photobioreactor were investigated. Methods of feeding model, low temperature at night and proper feeding time were used to increase both cell biomass and cell activity. Dry cell weight of 1.87 g/L which was 2.0-fold of batch culture...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.02.101
更新日期：2015-06-01 00:00:00
abstract：:The aim of this work was to study the influence of inoculation with microbial inoculants (MI) or mature compost (MC) by comparing the resultant composting efficiency with that in a noninoculated (CK) treatment. MI and MC application both accelerated the composting process according to fluorescence excitation-emission ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2020.123658
更新日期：2020-10-01 00:00:00
abstract：:The aim of the research was to determine the influence of biochar and activated carbon (AC) on the freely dissolved concentration of polycyclic aromatic hydrocarbons (PAHs) in sewage sludge. Two different biochars (MSB and PMW) and two ACs (CP1 and BP2) were used in the present experiment. Addition of AC/biochar to se...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.02.030
更新日期：2012-05-01 00:00:00
abstract：:High moisture content in wet algal biomass hinders effective performance of current lipid extraction methods. An improved aqueous extraction method combing thermal and enzymatic lysis was proposed and performed in algal slurry of Nannochloropsis oceanica (96.0% moisture) in this study. In general, cell-wall of N. ocea...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2016.04.031
更新日期：2016-08-01 00:00:00
abstract：:Extracellular enzymes offer active catalysis for hydrolysis of organic solid wastes in anaerobic digestion. To evidence the quantitative significance of hydrolytic enzyme activities for major waste components, track studies of thermophilic and mesophilic anaerobic sequencing-batch reactors (TASBR and MASBR) were condu...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.01.146
更新日期：2012-04-01 00:00:00
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 improveme...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2013.06.059
更新日期：2013-09-01 00:00:00
abstract：:Nitrilases constitute an important class of hydrolases, having numerous industrial applications. The present work aims to address the production of nitrile hydrolyzing enzymes from Pseudomonas putida MTCC 5110 in a 6l bioreactor. Effect of various physico-chemical conditions and process parameters like pH, temperature...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2006.11.053
更新日期：2008-01-01 00:00:00
abstract：:From the distillation process after butanol fermentation, wastewaters mainly consisted of organic acids and residual sugars and with high COD (usually >20,000 mg/L) are generated. Without any pretreatment and adding other nutrients (nitrogen sources and trace elements), these wastewaters were used as substrate for mic...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.05.023
更新日期：2012-08-01 00:00:00
abstract：:In this study, the anammox consortium was found to adapt to the wastewater containing dissolved oxygen (DO), as the DO was gradually increased. Batch tests indicated the maximum aerobic ammonium oxidizing activity of the consortium was 1.38mmolNH4+-N(gVSS)(-1)day(-1), which played key roles in the oxygen consumption p...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2008.03.006
更新日期：2008-11-01 00:00:00
abstract：:The application potential of duckweed (Lemna japonica 0234) and water hyacinth (Eichhornia crassipes) were compared in two pilot-scale wastewater treatment systems for more than one year. The results indicated duckweed had the same total nitrogen (TN) recovery rate as water hyacinth (0.4 g/m(2)/d) and a slightly lower...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2014.04.018
更新日期：2014-07-01 00:00:00
abstract：:The influence of the reactor wall attached biofilm on the nutrient removal performance was investigated in an open photobioreactor during long-term operation. Total nitrogen and phosphorus removal efficiencies were statistically similar between reactor with (reactor A) and without (reactor B) biofilm at the Hydraulic ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2016.06.099
更新日期：2016-10-01 00:00:00
abstract：:A packed cage rotating biological contactor (RBC) system was applied to treat wastewater containing Cl2 residue with concentration even up to 20 mg/L. However, Cl2 exhibited a negative effect on the efficiency of the system as evidenced by the decrease in the growth of bio-film. It could be concluded that the removal ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2005.07.030
更新日期：2006-09-01 00:00:00
abstract：:Inorganic borates offer good protection to timber in most non-ground contact applications. The effective use of low solubility borates has not yet been achieved in the treatment of solid lumber. Interest in reducing the leaching of borates stems from their favorable environmental characteristics and broad spectrum eff...
journal_title：Bioresource technology
pub_type： 杂志文章,评审
doi：10.1016/j.biortech.2007.12.077
更新日期：2008-10-01 00:00:00
abstract：:Dissolved oxygen (DO) is a crucial parameter of the completely autotrophic nitrogen removal over nitrite (CANON) process. This study determined the nitrogen removal performance and microbial community of the CANON process in a laboratory-scale submerged aerated biological filter (SABF) over a DO concentration range fr...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2018.01.044
更新日期：2018-04-01 00:00:00
abstract：:Five different pre-treatments were investigated to enhance the solubilisation and anaerobic biodegradability of kitchen waste (KW) in thermophilic batch and continuous tests. In the batch solubilisation tests, the highest and the lowest solubilisation efficiency were achieved with the thermo-acid and the pressure-depr...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.07.122
更新日期：2011-01-01 00:00:00
abstract：:The performances of anaerobic-anoxic-oxic processes with (A2O-B) and without (A2O-C) beneficial microorganisms were compared to provide valuable insights on how they are affected by changes in the microbial biomass and community composition. Although the A2O-B process showed lower concentrations of mixed liquor suspen...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2019.02.047
更新日期：2019-06-01 00:00:00
abstract：:The long-term effect of set potential on oxygen reducing biocathodes was investigated in terms of electrochemical and biological characteristics. Three biocathodes were poised at 200, 60 and -100 mV vs. saturated calomel electrode (SCE) for 110 days, including the first 17 days for startup. Electrochemical analyses sh...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.06.017
更新日期：2012-09-01 00:00:00
abstract：:The specific elimination of lignin derivatives from wood hydrolysate without sugar loss has great practical significance to biorefinery and bioenergy. In the present study, a process consisting of calcium hydroxide and anion exchange resin treatments was developed for the purpose of selective removal of lignin from wo...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2014.10.025
更新日期：2014-12-01 00:00:00
abstract：:The inhibition pattern was identified for a reaction system composed of Trichoderma reesei cellulase enzyme complex and lime-pretreated corn stover. Also, the glucose inhibition effect was quantified for the aforementioned reaction system over a range of enzyme loadings and substrate concentrations. Lastly, the range ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2006.10.014
更新日期：2007-11-01 00:00:00
abstract：:Application of combined ultrafiltration (UF) and nanofiltration (NF) was examined to recycle cellulase and concentrate glucose present in lignocellulosic hydrolyzate. With PES10 membrane operated at 25.6 l/m(2) h, 73.9% of cellulase protein present in the hydrolyzate suspension could be recovered while allowing free t...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2011.10.049
更新日期：2012-01-01 00:00:00
