Abstract：
:Gas-phase styrene removal using the fungus, Sporothrix variecibatus was evaluated in a novel monolith bioreactor, receiving a continuous supply of nutrients from the trickling liquid phase. During the start-up process, the monolith reactor was operated for 22 days with relatively low styrene concentrations in the gas-phase (<0.4 g m(-3)). Afterwards, continuous experiments were carried out at different inlet styrene concentrations, ranging between 0.06 and 2.5 g m(-3), and at two different flow rates corresponding to empty bed residence times (EBRTs) of 77 and 19 s, respectively. A maximum elimination capacity of 67.4 g m(-3) h(-1) was observed at an inlet styrene load of 73.5 g m(-3) h(-1). However, it was observed that the critical loading rates to the monolith bioreactor were a strong function of the gas residence time. The critical load, with greater than 95% styrene removal was 74 g m(-3) h(-1) at an EBRT of 77 s, while it was only 37.2 g m(-3) h(-1) for an EBRT of 19 s. After 92 days of continuous operation, due to excess biomass growth on the surface of the monolith, the biodegradation efficiency decreased significantly. To ascertain the instantaneous response of the attached fungus, to withstand fluctuations in loading conditions, two dynamic shock loads were conducted, at EBRTs of 77 and 19 s, respectively. It was observed that, the performance of the monolith bioreactor decreased significantly at low residence times, when subjected to high shock loads. The recovery times for high performance, in both cases, did not exceed more than 1 h.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Rene ER,López ME,Veiga MC,Kennes Cdoi
10.1016/j.biortech.2009.10.060subject
Has Abstractpub_date
2010-04-01 00:00:00pages
2608-15issue
8eissn
0960-8524issn
1873-2976pii
S0960-8524(09)01436-9journal_volume
101pub_type
杂志文章abstract：:To improve the efficiency of wastewater treatment and characterize the microorganism communities, microorganisms were cultured and concentrated in hybrid bioreactors at a low temperature (~4 °C, low-temperature hybrid bioreactor, LTHB) and room temperature (~25 °C, room-temperature hybrid bioreactor, RTHB). The perfor...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2011.12.141
更新日期：2012-03-01 00:00:00
abstract：:The ammonia fiber expansion (AFEX) process has been shown to be an effective pretreatment for lignocellulosic biomass. Technological advances in AFEX have been made since previous cost estimates were developed for this process. Recent research has enabled lower overall ammonia requirements, reduced ammonia concentrati...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2008.02.059
更新日期：2008-11-01 00:00:00
abstract：:The aim was to study arabinoxylan-oligosaccharide production from rye bran using heat pretreatment and enzymatic hydrolysis. Due to the potential application in foods, the purity of arabinoxylan was also assessed. Rye bran was heat pretreated to improve xylanase-catalyzed hydrolysis of arabinoxylan into arabinoxylan-o...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2014.09.139
更新日期：2014-12-01 00:00:00
abstract：:Efforts were made in this study to using an extraction residue of Salvia mitiorrziza Bge (SM), a widely utilized traditional Chinese medicine, as an effective biosorbent of methylene blue from polluted water. Batch experiments were carried out with original and chemical modification, particle size, dosage, solution pH...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2016.07.121
更新日期：2016-11-01 00:00:00
abstract：:Aspartase gene (aspA) from Aeromonas media NFB-5 was cloned and expressed in Escherichia coli BL21 using pET21b(+) expression vector. Maximum production of aspartase was obtained at shake-flask after 5 h of IPTG (1.5 mM) induction at 37°C and by supplementing the media with KH2PO4 (0.3%, w/v) and K2HPO4 (0.3%, w/v). F...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.11.041
更新日期：2013-10-01 00:00:00
abstract：:Easily separable amine-functionalized magnetic corn stalk composites (AF-MCS) were employed for effective adsorption and reduction of toxic hexavalent chromium [Cr(VI)] to nontoxic Cr(III). The saturated magnetization of AF-MCS reached 6.2emu/g, and as a result, it could be separated from aqueous solution by a magneti...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.01.103
更新日期：2015-08-01 00:00:00
abstract：:Millions of tonnes of brewer's spent grain (BSG) are annually produced worldwide as a by-product of the brewing industry. BSG has the potential to be a valuable source of food, chemicals and energy if cost-efficient fractionation methods can be developed. A 2-fold improvement in carbohydrate solubilisation could be ac...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.04.043
更新日期：2012-07-01 00:00:00
abstract：:After industrial processing, one-third of sugarcane culms is converted into residual bagasse. The xylan-rich hemicellulose components of the bagasse were extracted with hot aqueous alkali (AX-CRUDE). Approximately 82% of the extracted hemicelluloses was precipitated with ethanol (AX-PET). Both AX-CRUDE and AX-PET cont...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2011.08.107
更新日期：2011-11-01 00:00:00
abstract：:Biodegradability of fecal nitrogen was studied in composting process. Fecal nitrogen was subdivided into two fractions: a type originally inert in biological activity (N(XI)), and a slowly biodegradable one (N(XS)). During the composting process, an inert type of organic matter (N(XIB)) was reproduced by endogenous re...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2006.10.045
更新日期：2007-12-01 00:00:00
abstract：:The anaerobic digestion model No. 1 (ADM1), conceived by the international water association (IWA) task group for mathematical modelling of anaerobic digestion processes is a structured generic model which includes multiples steps describing biochemical and physicochemical processes encountered in the anaerobic degrad...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2007.11.035
更新日期：2008-09-01 00:00:00
abstract：:An optimized protocol for the bioconversion of eucalyptus bark was devised. It comprised: (i) mechanical reduction in bark size to 0.5-3.0 cm, (ii) moistening to 60-65%, (iii) fortification with ligninase-rich fungus Volvariella sp. (S-1) and 2% urea and (iv) maintenance of this composting mix under aerobic and ambien...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/s0960-8524(01)00061-x
更新日期：2002-01-01 00:00:00
abstract：:Acetone, butanol and ethanol were produced in a continuous two-stage fermentation integrated with pervaporation using freely suspended cells of C. acetobutylicum ATCC 824. PDMS composite pervaporation membranes were directly coupled to the second fermentor which lead to decreased solvent titers. Overall productivity w...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.11.072
更新日期：2013-02-01 00:00:00
abstract：:In this study, the effect of quinoline on nitrification in an activated sludge system was evaluated in batch assays. Quinoline was evaluated to partial nitrification process or to partial nitrification-quinoline degrading process. In partial nitrification assays, 50-150mg/L quinoline presence promoted the ammonium oxi...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.08.067
更新日期：2015-12-01 00:00:00
abstract：:In this study, a novel aerated surface flow constructed wetland (SFCW) using exhaust gas from biological wastewater treatment was investigated. Compared with un-aerated SFCW, the introduction of exhaust gas into SFCW significantly improved NH4+-N, TN and COD removal efficiencies by 68.30 ± 2.06%, 24.92 ± 1.13% and 73....
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2017.08.172
更新日期：2018-02-01 00:00:00
abstract：:A highly selective approach to produce levulinic acid from cellulose was developed via microwave-assisted synthesis in SO3H-functionalized ionic liquids (SFILs). The effects of reaction conditions and ionic liquid structures on the yield of levulinic acid have been investigated, where the highest yield of 55.0% was ob...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.12.132
更新日期：2013-02-01 00:00:00
abstract：:The aim of this work was to investigate ultrasound (US)-assisted green solvent extraction of valuable compounds from the microalgae Nannochloropsis spp. Individual green solvents (water, ethanol (EtOH), dimethyl sulfoxide (DMSO)) and binary mixture of solvents (water-DMSO and water-EtOH) were used for the extraction p...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.09.020
更新日期：2015-12-01 00:00:00
abstract：:Methane production from anaerobic digestion of waste activated sludge (WAS) is limited by the slow hydrolysis rate and/or poor methane potential of WAS. This study presents a novel pre-treatment strategy based on indigenous iron (in WAS) activated peroxidation to enhance methane production from WAS. Pre-treatment of W...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.01.132
更新日期：2015-04-01 00:00:00
abstract：:Bacillus amyloliquefaciens SH-B10 isolated from deep-sea sediment produces two anti-fungal lipopeptides that were purified by bioactivity-guided fractionation based on acid precipitation, vacuum flash chromatography and semi-preparative HPLC. The two compounds were identified by tandem Q-TOF mass spectroscopy as C16 f...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.06.054
更新日期：2010-11-01 00:00:00
abstract：:Eukaryotic and bacterial communities were characterized and quantified in microalgal photobioreactor cultures of freshwater Chlorella vulgaris and marine Dunaliella tertiolecta. The microalgae exhibited good growth, whilst both cultures contained diverse bacterial communities. Both cultures included Proteobacteria and...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.08.048
更新日期：2012-11-01 00:00:00
abstract：:Microalgae have emerged as the potential source for value-added products such as polyunsaturated fatty acids (PUFAs). Metabolic engineering of multiple metabolic pathways has promoted eicosapentaenoic acid (EPA) production in microalgae, however, further improvement is warranted owing to the burgeoning demand. Here we...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2018.12.116
更新日期：2019-04-01 00:00:00
abstract：:The influence of monoethanolamine (MEA) as a CO(2) absorbent on photoautotrophic culture of CO(2)-fixing microalgae was investigated. When 300 ppm MEA (4.92 mM) was added to blank culture medium, the dissolved inorganic carbon and the molar absorption ratio increased to 51.0mg/L and 0.34 mol CO2 = mol MEA, respectivel...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.06.010
更新日期：2012-09-01 00:00:00
abstract：:The power production performance of a membrane-less air-cathode microbial fuel cell was evaluated for 53 days. Anode and cathode electrodes and the micro-fiber cloth separator were configured by sandwiching the separator between two electrodes. In addition, the air-facing side of the cathode was covered with a spunbon...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2011.08.082
更新日期：2011-11-01 00:00:00
abstract：:An artificial neural network (ANN) model was used to predict removal efficiency of Lanaset Red (LR) G on walnut husk (WH). This adsorbent was characterized by FTIR-ATR. Effects of particle size, adsorbent dose, initial pH value, dye concentration, and contact time were investigated to optimize sorption process. Operat...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2011.09.106
更新日期：2012-01-01 00:00:00
abstract：:The improvement of photosynthetic efficiency in a 100 m2 raceway reactor by enhancement of light regime to which the cells are exposed is here reported. From Computational Fluid Dynamics it was calculated that the light exposure times ranged from 0.4 to 3.6 s while the exposure times to darkness were much longer, from...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2019.02.032
更新日期：2019-05-01 00:00:00
abstract：:The aim of this study was to improve performance of the microbial electrolysis desalination and chemical-production cell (MEDCC) using enlarged anode and high applied voltages. MEDCCs with anode lengths of 9 and 48cm (i.e., the 9cm-anode MEDCC and 48cm-anode MEDCC, respectively) were tested under different voltages (1...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2017.08.049
更新日期：2017-11-01 00:00:00
abstract：:Organic compounds such as methanol are widely used for enhancing denitrification at wastewater treatment plants (WWTPs) to meet effluent water quality permits. On the other hand, methane, which is the main feedstock for industrial methanol production, is also generated during anaerobic digestion in WWTPs, but is often...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2019.01.092
更新日期：2019-05-01 00:00:00
abstract：:In this study, effects of temperature, inducer concentration, time of induction and co-expression of molecular chaperones (GroEL-GroES and DnaKJE), on cell growth and solubilization of model protein, xylanases, were investigated. The yield of soluble xylanases increased with decreasing cultivation temperature and indu...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.07.011
更新日期：2012-11-01 00:00:00
abstract：:Porous starch was used as a precursor for hierarchical porous carbon microspheres. The preparation consisted of stabilisation, carbonisation and KOH activation, and the resultant hierarchical porous carbon microspheres had a large BET surface area of 3251 m(2)g(-1). Due to the large surface area and the hierarchical p...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2013.04.085
更新日期：2013-07-01 00:00:00
abstract：:Silicone rubbers are hydrophobic, a feature that may prove advantageous if this material is to be used as immobilization matrix in bioconversion systems where hydrophobic species are present, such as sterols and mycobacterial cells. Mycobacterium sp. cells with sitosterol side chain cleavage activity were accordingly ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2007.05.007
更新日期：2008-05-01 00:00:00
abstract：:Conversion of corn fiber to ethanol in the dry grind process could increase ethanol yields, reduce downstream processing costs and improve overall process profitability. This work investigates the in-situ conversion of corn fiber into ethanol (cellulase addition during simultaneous saccharification and fermentation) d...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2018.09.120
更新日期：2018-12-01 00:00:00
