欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
为了提高污泥酶水解的效率,研究向污泥中投加表面活性剂十二烷基硫酸钠（sodium dodecyl sulfate,SDS）强化污泥酶水解的效果.结果表明,SDS极大促进了剩余污泥酶水解,且复合酶的处理效果优于单酶.复合酶的投加量为0.06 g/g时,SCOD溶出率随SDS投加量成正比增加.SDS为0.20 g/g时,SCOD/TCOD从初始污泥的1.3%上升到54.3%,同时VSS去除率显著提高,最高可达43.2%.SDS的加入提高了酶的活性,当SDS为0.10 g/g时,蛋白酶活和淀粉酶活分别是单独加酶组的2.3倍和1.2倍.水解过程的前4 h,SDS＋复合酶组的蛋白质、氨氮和可溶性糖浓度相应地分别提高了85.4%、92.5%和64.0%.此外,污泥水解过程的前4 h符合一级反应动力学,速率常数（K）值从空白组的0.23增加到0.41,说明SDS＋复合酶的加入使得反应速率明显得到了提高.
英文摘要：
In order to enhance the efficiency of enzymatic hydrolysis of excess sludge,sodium dodecyl sulfate（SDS） was added to the system to explore the feasibility of promotion the enzyme hydrolysis.The results showed that the enzymatic hydrolysis of excess sludge could be greatly improved by SDS,and the mixed enzymes system was more effective than that by single enzyme system.SCOD releasing increased linearly with the increase of SDS dosage at the mixed enzymes concentration of 0.06 g/g.SCOD/TCOD increased from 1.3% to 54.3% and VSS reduction achieved to 43.2% at the SDS dosage of 0.20 g/g.Further studies indicated that SDS could improve the activity of external enzymes.At SDS dosage of 0.10 g/g,the protease activity of SDS＋protease showed a 2.3-time increase and the amylase activity of SDS＋amylase showed a 1.2-time increase compared with enzymatic treatment.After 4 h hydrolysis,the concentration of protein,NH＋4-N and soluble sugar in SDS＋mixed enzymes system were improved by 85.4%,92.5% and 64.0%,respectively.Correspondingly,sludge hydrolysis within prior 4 h was consistent with first-order reaction dynamics.The reaction rate constant（K） of soluble sugar increased from 0.23 to 0.41,which indicated that the reaction rate of hydrolysis increased significantly.
同期刊论文项目
同项目期刊论文
Microbial community analysis involved in the aerobic/extended-idle process performing biological pho
Biological phosphorus removal from real wastewater in a sequencing batch reactor operated as aerobic
Preparation of peanut hull-based activated carbon by microwave-induced phosphoric acid activation an
Combined effect of sodium dodecyl sulfate and enzyme on waste activated sludge hydrolysis and acidif
Improving disintegration and acidification of waste activated sludge by combined alkaline and microw
Landfill leachate pretreatment by coagulation–flocculation process using iron-based coagulants: Opti
Simultaneous adsorption/reduction of bromate by nanoscale zerovalent iron supported on modified acti
Hydrolysis and acidification of waste-activated sludge in the presence of biosurfactant rhamnolipid:
Fe(II)-Al(III) layered double hydroxides prepared by ultrasound-assisted co-precipitation method for
Novel insights into enzymatic-enhanced anaerobic digestion of waste activated sludge by three-dimens
Improved biological phosphorus removal performance driven by the aerobic/extended-idle regime with p
Evaluation of the feasibility of alcohols serving as external carbon sources for biological phosphor
Comparison between acetate and propionate as carbon sources for phosphorus removal in the aerobic/ex
Effect of initial pH control on biological phosphorus removal induced by the aerobic/extended-idle r
Enhanced biological nutrient removal in sequencing batch reactors operated as static/oxic/anoxic (SO
The isolation, identification of sludge-lysing thermophilic bacteria and its utilization in solubili
Micellar-enhanced ultrafiltration of methylene blue from dye wastewater via a polysulfone hollow fib
Immobilization of laccase on magnetic bimodal mesoporous carbon and the application in the removal o
Effect of Triton X-100 on the removal of aqueous phenol by laccase analyzed with a combined approach
Purification and biochemical characterization of two extracellular peroxidases from Phanerochaete ch
Synthesis of iron oxide nanoparticles and their application in Phanerochaete chrysosporium immobiliz
Cadmium removal and 2,4-dichlorophenol degradation by immobilized Phanerochaete chrysosporium loaded
Coarsening of extracellularly biosynthesized cadmium crystal particles induced by thioacetamide in s
Gold nanoparticles/water-soluble carbon nanotubes/aromatic diamine polymer composite films for highl
Influence of rhamnolipids and Triton X-100 on the adsorption of phenol by Penicillium simplicissimum
@@Gold nanoparticles/water-soluble carbon nanotubes/aromatic diamine polymer composite films for hig
Effects of inoculation with Phanerochaete chrysosporium on remediation of pentachlorophenol-contamin
Heavy metal-induced glutathione accumulation and its role in heavy metal detoxification in Phaneroch
Effect of Pb2+ on the production of hydroxyl radical during solid-state fermentation of straw with P
A GIS-Based Spatial Multi-Criteria Approach for Flood Risk Assessment in the Dongting Lake Region, H
Simultaneous cadmium removal and 2,4-dichlorophenol degradation from aqueous solutions by Phanerocha
Effect of saponins on cell surface properties of Penicillium simplicissimum:Performance on adsorptio
Electrochemical DNA sensor for simultaneous detection of genes encoding two functional enzymes invol
Prediction of fouling resistance and permeate flux in cross-flow micellar-enhanced ultrafiltration (
Impact of humic/fulvic acid on the removal of heavy metals from aqueous solutions using nanomaterial
Effect of monorhamnolipid on the degradation of n-hexadecane by Candida tropicalis and the associati
Assessment of Heavy Metal Contamination in the Surrounding Soils and Surface Sediments in Xiawangang
Changes of soil microbial biomass and bacterial community structure in Dongting Lake: Impacts of 50,
期刊信息
位置：