Abstract：
:Scum is an oily waste stream of the wastewater treatment process that can be used to produce biodiesel. Combining acid hydrolysis and solvent extraction, a free fatty acid and acyl-glycerol rich product was produced. Free fatty acids (FFAs) present were converted to acyl-glycols via a high temperature (238°C) glycerin esterification process known as glycerolysis. The inorganic catalysts zinc aluminum oxide and sodium sulfate were tested during glycerolysis to compare the reaction kinetics of converting FFA to acyl-glycerols. It was concluded that the zinc-based catalyst increased the reaction rate significantly, from a "k" value of 2.57 (uncatalyzed) to 5.63, completing the reaction in 60min, half the time it took the uncatalyzed reaction (120min). Sodium sulfate's presence however slowed the reaction, resulting in a "k" value of 1.45, completing the reaction in 180min. Use of the external catalyst Zn-Al2O3 showed the greatest catalytic potential, but also assumes additional costs.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Anderson E,Addy M,Xie Q,Ma H,Liu Y,Cheng Y,Onuma N,Chen P,Ruan Rdoi
10.1016/j.biortech.2015.10.018subject
Has Abstractpub_date
2016-01-01 00:00:00pages
153-60eissn
0960-8524issn
1873-2976pii
S0960-8524(15)01413-3journal_volume
200pub_type
杂志文章abstract：:In the present investigation, recovery of malic acid from the fermentation broth was performed by using in situ reactive extraction method employing different combination of amine and solvent systems. Totally six solvent mixtures were tested for toxicity on Aspergillus niger PJR1. Further, effect of solvent mixture co...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2020.123259
更新日期：2020-07-01 00:00:00
abstract：:To estimate the order of importance of factors affecting the stability and maturation of compost, pig feces and corn stalks were co-composted at different aeration rates (AR: 0.24, 0.48, 0.72 L kg(-1)dry matter (DM)min(-1)), C/N ratios (15, 18, 21), and moisture contents (MC: 65%, 70%, 75%). The thermophilic phase wit...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.02.099
更新日期：2012-05-01 00:00:00
abstract：:Ferulic acid biotransformation has a number of interesting industrial uses. Ferulic acid biotransformation by the wild strain Aspergillus niger C28B25 and a diploid strain DAR2, obtained by parasexual recombination, was studied. The wild strain of A.niger C28B25 biotransforms ferulic acid to vanillic acid (VA); while ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.01.086
更新日期：2010-06-01 00:00:00
abstract：:In the present study, synergistic effects were observed when glycerol was co-fermented with glucose and xylose for lipid production by the oleaginous yeast Cryptococcus curvatus. Glycerol was assimilated simultaneously with sugars at the beginning of the culture without adaption time. Furthermore, better lipid product...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2016.08.021
更新日期：2016-11-01 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：:In this experimental work, the feasibility of wheat straw as a feedstock for biogas production is investigated using the newly developed upflow anaerobic solid-state (UASS) process. With the analytical emphasis placed on methane and metabolite production, both mesophilic and thermophilic 39 L UASS reactors were operat...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.08.063
更新日期：2012-11-01 00:00:00
abstract：:The present study emphasizes the importance of overcoming proton limitation in a microbial fuel cell operated on domestic wastewater. When the anode-treated effluent was allowed to trickle into the cathodic compartment (full-loop operation), high COD and suspended solids removal efficiencies over 75% and 84%, respecti...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2011.02.098
更新日期：2011-05-01 00:00:00
abstract：:Highly efficient simultaneous removal of Cu(II) and tetracycline (TET) from aqueous solution was accomplished by iron and zinc doped sawdust biochar (Fe/Zn-biochar). The mutual effects and inner mechanisms of their adsorption onto Fe/Zn-biochar were systematically investigated via sole and binary systems, sorption iso...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2017.08.178
更新日期：2017-12-01 00:00:00
abstract：:The individual and combined impacts of copper ion (Cu2+) and oxytetracycline (OTC) on anaerobic ammonium oxidation (anammox) performance and its self-recovery process were examined. Experimental results showed that the anammox performance and activity of anammox bacteria were inhibited by 1.0 mg L-1 OTC, Cu2+ and OTC ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2020.124106
更新日期：2021-01-01 00:00:00
abstract：:A thermophilic naphthalene- and aliphatic hydrocarbon-degrading bacterium SH-1 was isolated from a deep oil well and identified as Geobacillus sp. n-alkanes from C12 to C33 in crude oil and naphthalene were effectively degraded by strain SH-1, and this strain could readily utilize these compounds as its sole carbon an...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.08.044
更新日期：2012-11-01 00:00:00
abstract：:Biodegradation of ferulic acid, by an endophytic fungus called Phomopsis liquidambari was investigated in this study. This strain can use ferulic acid as the sole carbon for growth. Both in mineral salt medium and in soil, more than 97% of added ferulic acid was degraded within 48 h. The metabolites were identified an...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2014.11.112
更新日期：2015-03-01 00:00:00
abstract：:Nitrogen-transforming microorganisms play pivotal roles for the microbial nitrogen-cycling network in the anammox granular system. However, little is known about the effects of inorganic carbon (IC) stresses on the assemblage patterns and functional profiles of abundant and rare taxa. Herein, the community assemblage ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2018.06.022
更新日期：2018-10-01 00:00:00
abstract：:Unlike light torrefaction at 200 °C (B200), the mild (250 °C) and severe (300 °C) torrefaction pretreatments (B250 and B300) significantly increased the calorific value, reduced the oxygen content and improved the surface morphology for bamboo residues (BR). The main oxygen-removing carriers of BR during torrefaction ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2020.122960
更新日期：2020-05-01 00:00:00
abstract：:Slurry samples, collected from 41 commercial swine farms in South Korea, were characterized in various physico-biochemical, macro and micronutrients, heavy metals and microbial parameters. Interestingly, significant variations were observed in all the parameters. However, positive relationships were noticed between EC...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2009.05.006
更新日期：2009-10-01 00:00:00
abstract：:The aim of this work was to assess the environmental consequences of anaerobic mono- and co-digestion of pig manure to produce bio-energy, from a life cycle perspective. This included assessing environmental impacts and land use change emissions (LUC) required to replace used co-substrates for anaerobic digestion. Env...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.08.124
更新日期：2012-12-01 00:00:00
abstract：:The removal of CO2 and tar in fuel gas produced by biomass thermal conversion has aroused more attention due to their adverse effects on the subsequent fuel gas application. High quality fuel gas production from sawdust pyrolysis with CaO was studied in this paper. The results of pyrolysis-gas chromatography/mass spec...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2014.01.031
更新日期：2014-03-01 00:00:00
abstract：:The aim of this work was to study the combined relationships between biological and chemical parameters with the humification index (HI) and degree of polymerisation (DP) during the composting of a municipal solid waste. During the composting, biological parameters increased during the first 15 days. After the second ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2009.03.034
更新日期：2009-09-01 00:00:00
abstract：:Tween 80, Tween 20, PEG 4000 or PEG 6000 was used in combination with ammonium hydroxide for the pretreatment of sugarcane bagasse. Pretreatment was carried out by mixing sugarcane bagasse, ammonium hydroxide (28% v/v solution), and water at a ratio of 1:0.5:20, adding 3% (w/w) surfactant based on the weight of dry bi...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.12.170
更新日期：2013-03-01 00:00:00
abstract：:A biological methanation system based on nutrient recycling via mixed culture microbial catabolism was investigated at mesophilic (37 °C) and thermophilic (55 °C) temperatures. At mesophilic temperatures, the formation of biofilms on two different types of material was assessed. Results showed that with intense mixing...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2018.02.109
更新日期：2018-06-01 00:00:00
abstract：:The biomass yield of a continuous flow activated sludge system varied when the system treated influent containing different compositions of biogenic and xenobiotic substrates. Both the biogenic substrate and a test xenobiotic 2,4-dichlorophenoxyacetic acid (2,4-D) were degraded at steady-state activated sludge operati...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.12.037
更新日期：2011-03-01 00:00:00
abstract：:In this study, activated carbons were prepared from sugar beet bagasse by chemical activation and the prepared activated carbons were used to remove nitrate from aqueous solutions. In chemical activation, ZnCl(2) was used as chemical agent. The effects of impregnation ratio and activation temperature were investigated...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2009.09.087
更新日期：2010-03-01 00:00:00
abstract：:Sugarcane press mud was pretreated by liquid hot water (LHW) at different temperatures (140-210 °C) and pre-treatment times (5-20 min) in order to assess the effects on the chemical oxygen demand (COD) solubilisation, inhibitors formation and methane yield. The experimental results showed that a high degree of biomass...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2014.06.107
更新日期：2014-10-01 00:00:00
abstract：:This paper reviews current knowledge of the production of organic acids by immobilized microorganisms with a simultaneous solubilization of rock phosphate in fermentation and soil conditions. The most widely applied methods are based on the passive immobilization in preformed porous carriers and entrapment of the micr...
journal_title：Bioresource technology
pub_type： 杂志文章,评审
doi：10.1016/s0960-8524(01)00017-7
更新日期：2001-09-01 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：:The microbiological and physicochemical characterization of samples from the different wastewaters generated during oil extraction in a continuous olive mill was performed. The main aim was to determine which of the physicochemical parameters were the best fitted to correctly characterize these residual waters. High c...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2007.12.058
更新日期：2008-10-01 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：:Five metal oxides, Fe2O3, CuO, NiO, ZnO, and MgO, were investigated as catalysts to improve lignin removal and reduce sugar degradation during corn stover pretreatment. Liquid hot water (LHW) pretreatment was used as control. Among the five metal oxides, MgO was the most suitable for biomass pretreatmen. The optimal p...
journal_title：Bioresource technology
pub_type： 杂志文章,收录出版
doi：10.1016/j.biortech.2018.05.006
更新日期：2018-09-01 00:00:00
abstract：:An integrated ethanol-methane fermentation system was proposed to resolve wastewater pollution in cassava ethanol production. In the integrated system, wastewater originating from ethanol distillation was treated by two-stage anaerobic digestion and then used in medium for the next batch of ethanol fermentation. Ammon...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.06.032
更新日期：2012-09-01 00:00:00
abstract：:The objective of this research was to use white-rot fungus Trametes versicolor for corn silage pretreatment and to investigate the effect of pretreatment on biogas productivity. Semi-continuous pilot-scale experiment, comprised of two experimental phases, was carried out. In the first phase, operational conditions of ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2018.01.037
更新日期：2018-04-01 00:00:00
abstract：:Upon treatment with Cd and As cattail (Typha latifolia) showed induced catalase, monodehydroascorbate reductase and ascorbate peroxidase activities in leaves but strong inhibition in rhizomes. Peroxidase activity in leaves of the same plants was inhibited whereas linear increase was detected after Cd treatment in rhiz...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.09.072
更新日期：2011-01-01 00:00:00
