环境工程学报2016，Vol.10Issue(10)：5643-5647,5.DOI:10.12030/j.cjee.201504244
污泥转移SBR工艺污泥膨胀及恢复过程中EPS的动态变化
Dynamic changes of EPS of sludge bulking and recovery in sludge shifting SBR process
摘要
Abstract
A new process of phosphorus and nitrogen removal and sludge-shifting SBR was used for domestic sewage treatment.Because of the long duration of the operation at the low sludge load of 0.09 to 0.15 kg · (kg · d)-1,filamentous sludge bulking was observed in the main reactor.The sludge bulking was controlled and recovered when the sludge load of the main reactor was increased from 0.21 to 0.39 kg · (kg · d)-1,by increasing the influent load and taking the way of the static water.The effects of extracellular polymeric substances (EPS) on the settling performance of the activated sludge were also studied during the process.Positive correlations between PS/PN and the SVI value were found in both the sludge expansion and the recovery processes,with the R2 being 0.886 7 and 0.867 3,respectively.The EPS amount significantly and positively correlated with the SVI value in the sludge bulking process,while the correlation between the total EPS and the SVI values was not strong in the sludge recovery process.The crucial influencing factor in the settling ability of the activated sludge was the relative content of polysaccharide and protein in EPS.关键词
污泥转移SBR工艺/污泥膨胀/胞外聚合物Key words
sludge shifting SBR process/sludge bulking/EPS分类
资源环境引用本文复制引用
周晓华,潘杨,陈茜茜,邓猛,郑莹..污泥转移SBR工艺污泥膨胀及恢复过程中EPS的动态变化[J].环境工程学报,2016,10(10):5643-5647,5.基金项目
国家重点研发计划(2016YFC0401108) （2016YFC0401108）
江苏省高校自然科学研究重大项目(14KJA610001) （14KJA610001）
江苏省“333”学术带头人培养工程资助项目(331491201) （331491201）
江苏省优势学科资助项目 （）
