环境工程学报2012，Vol.6Issue(3)：719-724,6.
SRT对MBR污泥性质的影响
Effects of sludge retention time on sludge characteristics in membrane bioreactors
摘要
Abstract
The variations in sludge characteristics,such as components and contents of extracellular polymeric substances（EPS）,sludge settle ability and relative hydrophobic,and its impacts on membrane fouling,were investigated at sludge retention times（SRTs） of 10 d,20 d and 40 d in a submerged membrane bioreactor（SMBR）treating synthesis lysine wastewater.The results showed that,as the SRT increased,the concentration of EPS decreased,and the ratio between protein and polysaccharide in tightly bound EPS（TBEPS） increased.The settling ability of sludge became worse,while the relatively hydrophobic raised with the increase of SRT.The results of correlation analyses between sludge properties and membrane fouling indicated that the ratio of protein to polysaccharide,sludge settling ability and relative hydrophobic had strong positive correlations with membrane fouling,while the EPS had a negative impact on membrane fouling.关键词
污泥停留时间/膜-生物反应器/污泥性质/胞外聚合物Key words
sludge retention time/membrane bioreactor/sludge characteristics/extracellular polymeric substances分类
化学化工引用本文复制引用
陶丽佳,李秀芬,王新华..SRT对MBR污泥性质的影响[J].环境工程学报,2012,6(3):719-724,6.基金项目
国家自然科学基金资助项目 （）
国家“863”高技术研究发展计划项目 （）
江苏省科技支撑计划-社会发展项目 （）
