膜生物反应器中生物铁对活性污泥性能的影响  

Influence of Bio-ferric on Activated Sludge Performance in MBR

作　　者：冀世锋[1] 高春梅[2] 奚旦立[3] 高玉红[4] 

机构地区：[1]上海环境科学研究院,上海200233 [2]上海海洋大学海洋科学学院,上海201306 [3]东华大学环境科学与工程学院,上海200051 [4]邯郸学院化学系,河北邯郸056005

出　　处：《环境科学研究》2009年第6期707-712,共6页Research of Environmental Sciences

基　　金：上海教育委员会一般项目(06-425);上海海洋大学博士启动基金项目(06-329);上海市教委高校第五期海洋环境工程重点学科项目(J50702);河北省科学技术研究与发展指导计划项目(07276731);邯郸市科学技术研究与发展计划项目(072316058-1)

摘　　要：污泥性能是决定污水处理效果的关键因素.通过向膜生物反应器中添加生物铁来强化污水处理效果,研究膜生物反应器中生物铁对活性污泥性能的影响,比较普通膜生物反应器(普通MBR)和生物铁膜生物反应器(生物铁MBR)中的污泥指数(SVI)、污泥质量浓度〔ρ(MLSS)和ρ(MLVSS)〕、污泥的脱氢酶活性和耗氧活性.结果表明,生物铁膜生物反应器中的污泥结构紧密,生物相丰富,污泥质量浓度比较稳定;生物铁MBR的SVI受进水负荷影响较小,能够克服污泥膨胀的影响;生物铁MBR污泥的脱氢酶活性和耗氧活性与普通膜生物反应器相似,随水力停留时间(HRT)的缩短或泥龄(SRT)的延长脱氢酶活性和耗氧活性呈下降趋势.Sludge performance is the key factor dominating wastewater treatment efficiency. The influence of bio-ferric on activated sludge was studied through adding iron hydroxide into MBR, and through analyzing SEt, mass concentration of sludge, dehydrogenase activity and aerobic activity of activated sludge and bio-fcrric sludge. This could provide a theoretical foundation for increasing treatment efficiency of MBR. Results showed that the structure of bio-ferric sludge was compact, which had abundant microorganisms and stable concentration. SEt in bio-ferric MBR was stable when influent loads changed, which indicated bio-ferric MBR could overcome the influence of sludge bulking. The SOUR and dehydrogenase activity of bio-ferric sludge were analogical to activated sludge, which showed a decreasing trend when HRT was shortened or SRT was prolonged.

关 键 词：生物铁 膜生物反应器 活性污泥 膜污染 

分 类 号：X703[环境科学与工程—环境工程]