Abstract：
:This study investigated the damages of microbial cell structures, as well as the relationships between these damages and the release of cellular organic matter in the pretreatment of waste activated sludge (WAS) by using alkaline pretreatment as model. In the alkaline pretreatment of WAS, the most damage of bound extracellular polymeric substances (EPS), cell walls, cell membranes, and cell nuclei occurred at pH 11.5-12.0 (46.2%), pH 11.0-11.5 (27.3%), pH 9.0-10.0 (34.2%), and pH 11.5-12.0 (44.4%), respectively. The damage percentages of these cell structures in the pH stabilization stage were low because most of the damages occurred when the pH increased. The structural integrities of sludge microorganisms were all damaged in the pH increase stage. The damages of EPS, cell walls, and cell membranes were significantly correlated with the release of cellular organic matter, and these damages were necessary to release the cellular matter in WAS.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Xiao B,Liu C,Liu J,Guo Xdoi
10.1016/j.biortech.2015.07.056subject
Has Abstractpub_date
2015-11-01 00:00:00pages
109-15eissn
0960-8524issn
1873-2976pii
S0960-8524(15)01018-4journal_volume
196pub_type
杂志文章abstract：:When the wild type Cellulomonas flavigena was grown on glycerol, xylose or cellobiose, it produced basal levels of carboxymethyl-cellulase (CMCase), filter-paperase (FPase) and xylanase activities. By comparison, a catabolic derepressed mutant strain of the same organism produced markedly higher levels of these enzyme...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/s0960-8524(00)00181-4
更新日期：2001-07-01 00:00:00
abstract：:The community dynamics of attached and free cells of Acidithiobacillus sp. were investigated and compared during chalcopyrite bioleaching process. In the mixed strains system, Acidithiobacillus ferrooxidans was the dominant species at the early stage while Acidithiobacillus thiooxidans owned competitive advantage from...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2013.12.036
更新日期：2014-02-01 00:00:00
abstract：:Cellulose nanocrystals (CNC) were prepared from microcrystalline cellulose (MCC) by hydrolysis with cation exchange resin (NKC-9) or 64% sulfuric acid. The cation exchange resin hydrolysis parameters were optimized by using the Box-Behnken design and response surface methodology. An optimum yield (50.04%) was achieved...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2011.09.070
更新日期：2011-12-01 00:00:00
abstract：:This short communication analyzed enzymolysis kinetics and estimated the resource conversion efficiency of corn cobs. Three pretreatments were applied, and enzymatic hydrolysis was performed to obtain solid residues. The enzymolysis process was fit to a modified logistic formula. The kinetics of enzymolysis were simil...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2018.06.045
更新日期：2018-09-01 00:00:00
abstract：:Phanerochete chrysosporium, the white-rot fungus, (a best source for lignolytic enzymes system) was used in the biological pretreatment of rice husk for reducing sugars production. Usually reducing sugar production through biochemical process involves two steps: solid state fermentation (SSF) of fungal pretreatment fo...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.10.030
更新日期：2013-01-01 00:00:00
abstract：:The optimization of culture condition for enhanced hydrogen production by Thermoanaerobacterium thermosaccharolyticum W16 was conducted using statistical experimental design and analysis. Plackett-Burman design was first used to screen the most important variables influencing hydrogen production, and subsequently cent...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2009.11.031
更新日期：2010-03-01 00:00:00
abstract：:The degradation of diesel fuel, B20 blend and biodiesel in liquid cultures by a seven-member bacterial consortium was compared under conditions with full aeration or with limited aeration with nitrate added as main electron acceptor. Community dynamics was assessed employing real-time PCR and the ddCt method for relat...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.12.068
更新日期：2011-03-01 00:00:00
abstract：:Municipal solid waste (MSW) represents an attractive cellulosic resource for sustainable fuel production. However, its heterogeneity is the major barrier to efficient conversion to biofuels. MSW paper mix was generated and blended with corn stover (CS). It has been shown that both of them can be efficiently pretreated...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.02.087
更新日期：2015-06-01 00:00:00
abstract：:The accumulation of soluble microbial production (SMP) in an anammox attached film expanded bed (AAFEB) and its effect on the reactor performance were investigated in this study. During the long-term experiment, an extended HRT resulted in the accumulation of SMP and the change of treatment performance. When the SMP i...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2016.09.129
更新日期：2016-12-01 00:00:00
abstract：:The anaerobic co-digestion of organic fraction of municipal solid waste (OFMSW) and fruit and vegetable waste (FVW) was evaluated in terms of biogas and methane yield, volatile solids (VS) removal rate and stability of the process. The batch experiment was conducted in mesophilic conditions (35°C), with four different...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2017.01.003
更新日期：2017-03-01 00:00:00
abstract：:In vitro ruminal fermentations resemble in vivo fermentations with respect to substrate consumption and distribution of fermentation products in short term (1-5 d) incubations. However, little is known regarding changes in in vitro fermentations over prolonged incubation or multiple transfers. Gas production, pH, ferm...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2019.121324
更新日期：2019-08-01 00:00:00
abstract：:Anaerobic digestion is the most widely adopted biological waste treatment processes with renewable energy production. The effects of adding metal nanoparticles (NPs) on improving digestion performance are well noted. This paper reviewed the traditional view on the cytotoxicity of NPs to living organisms and the contem...
journal_title：Bioresource technology
pub_type： 杂志文章,评审
doi：10.1016/j.biortech.2019.121926
更新日期：2019-11-01 00:00:00
abstract：:The organic fraction of municipal solid waste (OFMSW) is an abundant and sustainable substrate for the anaerobic digestion (AD) process, yet ammonia released during OFMSW hydrolysis could result in suboptimal biogas production. Acclimatized ammonia tolerant microorganisms offer an efficient way to alleviate ammonia in...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2019.121376
更新日期：2019-08-01 00:00:00
abstract：:The bioprocess for producing androstenedione (AD) from phytosterols by using Mycobacterium neoaurum is hindered by nicotinamide adenine dinucleotides (NAD+ and NADH) ratio imbalance, insoluble substrate, and lengthy biotransformation period. This study aims to improve the efficiency of AD production through a combined...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2019.01.144
更新日期：2019-05-01 00:00:00
abstract：:Microalgae have been suggested as a promising feedstock for producing biofuel because of their potential for lipid production. In this study, microalgal photobioreactor systems under mixotrophic conditions were investigated, for the purpose of developing a mathematical model that predicts biomass and lipid production....
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2014.03.128
更新日期：2014-06-01 00:00:00
abstract：:Microalgal starch and lipids, carbon-based storage molecules, are useful as potential biofuel feedstocks. In this work, cultivation strategies maximising starch and lipid formation were established by developing a multi-parameter kinetic model describing microalgal growth as well as starch and lipid formation, in conj...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2017.05.177
更新日期：2017-10-01 00:00:00
abstract：:The purpose of this study was to remove cadmium (Cd) and mercury (Hg) from non-point source wastewater by a hybrid bioreactor consisting of two different processes (anaerobic-anoxic-aerobic and photoautotrophic). The results showed that the bioreactor could concurrently culture heterotrophic and autotrophic microorgan...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2011.08.049
更新日期：2011-11-01 00:00:00
abstract：:A pilot-scale chemical-biological process was performed efficiently to remove corrosive H2S from biogas. Consecutive 356-d livestock biogas purification was conducted at various H2S loading rates. The average inlet H2S concentration was 3542 ppm, and a removal efficiency of 95% was achieved with gas retention time of ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.10.040
更新日期：2013-05-01 00:00:00
abstract：:Palm kernel shells were pyrolyzed in a pyrolysis plant equipped with a fluidized-bed reactor and a char-separation system. The influence of reaction temperature, feed size and feed rate on the product spectrum was also investigated. In addition, the effect of reaction temperature on the yields of phenol and phenolic c...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.06.110
更新日期：2010-12-01 00:00:00
abstract：:Although there is not a complete agreement on the causes of foaming in anaerobic digestion, experts and operators do have valuable empirical knowledge of key factors. Based on this knowledge, a model for calculating the risk of foaming in anaerobic digestion systems due to microbiological causes has been developed. Or...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.01.056
更新日期：2010-06-01 00:00:00
abstract：:A novel bacterium, Ochrobactrum sp. T, capable of simultaneous debromination and aerobic mineralization of tetrabromobisphenol-A (TBBPA), was isolated from a sludge sample collected from an electronic-waste recycling site. The bacterium exhibited maximal debrominase activity at pH 6.5, 35 °C, and 200 rpm in Luria-Bert...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2011.06.080
更新日期：2011-10-01 00:00:00
abstract：:Aerobic digestion batch tests were run on a sludge model that contained only two fractions, the heterotrophic biomass (XH) and its endogenous residue (XP). The objective was to describe the stabilization of the sludge and estimate the endogenous decay parameters. Modeling was performed with Aquasim, based on long-term...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2014.05.024
更新日期：2014-08-01 00:00:00
abstract：:An aluminum dioxide (Al2O3) ceramic membrane was used in a single-stage anaerobic fluidized bed ceramic membrane bioreactor (AFCMBR) for low-strength wastewater treatment. The AFCMBR was operated continuously for 395days at 25°C using a synthetic wastewater having a chemical oxygen demand (COD) averaging 260mg/L. A me...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2017.03.017
更新日期：2017-09-01 00:00:00
abstract：:Acidithiobacillus ferrooxidans strain SRDSM2 was isolated from silica containing soil sample collected at a Rajpardi lignite mine. The strain responded to the addition of 0.5 g/L peptone and 1.0 g/L tryptone soya broth in the ferrous sulphate tryptone soya broth (ITSB) medium with 35.3% and 29.6% increase in iron oxid...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.08.115
更新日期：2011-01-01 00:00:00
abstract：:Because of the abundance and renewability of lignocellulosic biomass, lignocellulose-derived biofuels and chemicals are promising alternatives to fossil resources. In this study, we developed a strategy for pretreating lignocellulose (corn stover) using a sodium hydroxide-urea solution (SUs) and evaluated changes in t...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2020.123191
更新日期：2020-07-01 00:00:00
abstract：:Chloramphenicol (CAP) is a frequently detected environmental pollutant. In this study, an electroactive biofilm for CAP reduction was established by initially in the anode and then inverting to the cathode. The established biocathode could enhance the reduction of CAP to the nitro-group reduced CAP (AMCl2) and further...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2016.09.047
更新日期：2016-12-01 00:00:00
abstract：:Anaerobic co-digestion (AcoD) of the main residues from the non-centrifugal cane sugar (NCS) making process, agricultural crop residues (ACR) and sugarcane scum (SCS), was evaluated using biochemical methane potential tests. Substrates were pretreated: ACR through particle size reduction, and SCS with dilution. The ma...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2020.122957
更新日期：2020-05-01 00:00:00
abstract：:A life cycle approach was adopted for energy, green house gas (GHG) emissions and renewability assessment for production of 1ton of Jatropha biodiesel. Allocation and displacement approaches were applied for life cycle inventory, process energy and process GHG emission attribution to co-products. The results of proces...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.01.142
更新日期：2012-04-01 00:00:00
abstract：:The aim of this study was to evaluate how pyrolysis temperature influences the yield and physicochemical properties of biochar. We produced biochar from four feedstocks (wheat straw, corn straw, rape straw, and rice straw) pyrolyzed at 300, 400, 500, and 600 °C for 1 h, respectively. The results showed that all biocha...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2019.122318
更新日期：2020-01-01 00:00:00
abstract：:In the present study, the abattoir digestate was used as a culture medium for Spongiochloris sp. growth with added mineral components under optimized conditions in batch culture. Firstly, an Hadamard matrix was used to investigate the impact of certain influencing factors on the Spongiochloris sp. growth. Then, a frac...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.11.036
更新日期：2011-02-01 00:00:00
