投加氢氧化铁对膜生物反应器性能的改善  

Improvement of ferric hydroxide dosing in performance of membrane biological reactor

作　　者：张永宝[1] 姜佩华[1] 冀世锋[1] 奚旦立[1] 

机构地区：[1]东华大学环境科学与工程学院,上海200051

出　　处：《给水排水》2004年第7期46-49,共4页Water & Wastewater Engineering

基　　金：上海市科委重点科技攻关项目(012312032)

摘　　要：向浸没式膜生物反应器中投加氢氧化铁絮体,经过驯化和培养,形成生物铁污泥,以提高膜生物反应器的处理效果,减缓膜污染。从对模拟印染废水的处理效果来看,生物铁污泥MBR和普通污泥MBR对COD的去除率分别为93％和91％,对废水染料的去除率分别为92％和85％;同时,通过高差以及污泥照片的测定和观察,可以看出生物铁污泥对于防治膜污染起到了重要的作用。Ferric hydroxide is dosed into submerged MBR and domesticated to convert activated sludge into bio-ferric activated sludge and achieved high efficiency of removal and decrease membrane pollution. The result of dyeing wastewater treatment shows that COD removal efficiency of bio-ferric MBR and common MBR are 93% and 91% respectively, and chroma removal efficiency are 92% and 85% respectively. Water level difference and photograph of sludge have proved the effect of bio-ferric sludge on the control of membrane pollution.

关 键 词：生物铁 膜生物反应器 膜污染 印染废水 废水处理 

分 类 号：X791[环境科学与工程—环境工程]