浸没式双轴旋转厌氧膜生物反应器的污泥特性研究  

SLUDGE CHARACTERISTICS IN A SUBMERGED DOUBLE-SHAFT ROTARY ANAEROBIC MEMBRANE BIOREACTOR

作　　者：白玲[1] 刘超[2] 胡侃[1] 王身相[1] 

机构地区：[1]江西农业大学理学院,江西南昌330045 [2]江西师范大学计算机信息工程学院,江西南昌330027

出　　处：《水处理技术》2009年第8期39-43,共5页Technology of Water Treatment

基　　金：江西省教育厅科技项目(2008GJJ08175)

摘　　要：研究了新型浸没式双轴旋转厌氧膜生物反应器(SDRAnMBR)处理模拟啤酒废水的污泥特性。结果表明,SDRAnMBR的污泥活性高、旋转剪切力没有对厌氧颗粒污泥的性质造成破坏并具有性能良好的絮体;而且能有效减轻污泥浓度、EPS、污泥粘度、污泥颗粒粒径的变化对膜污染的影响,使之能在较高的MLSS(18～19.5g·L-1)、较高的EPS浓度(50.9～63.9mg·gMLSS-1)、较小的污泥颗粒粒径(4.00～36.54μm)和较大的污泥粘度(6.6～7.5mPa·s-1)时稳定运行。SDRAnMBR中由膜旋转形成的三相旋转流和厌氧颗粒污泥的协同作用,使SDRAnMBR具有性能良好的活性污泥,同时强化了膜组件的抗污染性能。The sludge characteristics was studied treatment for synthetic brewery wastewater by submerged double-shaft rotary anaerobic membrane bioreactor （SDRAnMBR）. The results showed that sludge had high activity, rotary shear stress cannot disrupt anaerobic bio-solids,and had well sludge flocs. These characteristics could decrease the effect on sludge activity and particle size come from the shear stress excess bigness,restrain speediness accumulation of extracellular polymeric substances （EPS） in sludge mixed liquor due to MLSS accretion ,as well as restrain speediness accretion of sludge dynamic viscosity too. Thereby membrane fouling was reduced consumedly .It was realized steady running when operated at biggish MLSS （between 18 to19.5 g.L^-1）, higher EPS （between 50.9 to 63.9 mg-gMLSS^-1）, small sludge particle size（between 4.00 to 36.54 μm） and larger sludge vis- cosity（between 6.6 to 7,5 mPa-s^-1）. The tinging was identified that the well activity sludge in SDRAnMBR and strengthened anti-contamination performance of membrane module can be explained by characteristics of hydraulics dynamics of three-state rotating flow and synergetic effect with anaerobic granules sludge.

关 键 词：浸没式双轴旋转厌氧膜生物反应器 啤酒废水 污泥特性 

分 类 号：X703[环境科学与工程—环境工程]