低温下沸石曝气生物滤池预处理微污染原水研究  

STUDY ON ZEOLITE BIOLOGICAL AERATED FILTER FOR PRETREATING MICRO-POLLUTED SOURCE WATER AT LOW TEMPERATURE

作　　者：郑萌璐[1] 杨静[1] 蒋轶锋[1] 陈建孟[1] 缪佳[1] 

机构地区：[1]浙江工业大学生物与环境工程学院,浙江杭州310032

出　　处：《水处理技术》2012年第9期59-63,共5页Technology of Water Treatment

基　　金：国家科技重大专项(2008ZX07421-002-06;2008ZX07106-2-2;2008ZX07101-006-07);浙江省自然科学基金项目(Y5100307);浙江省重大科技专项项目(2007C13081);浙江省自然科学基金(Y5100307);杭州市重大科技攻关项目(20062912A06)

摘　　要：研究采用活化沸石曝气生物滤池(AZBAF)预处理微污染原水,考察其在低温下(7.8～16.2℃)的运行特性。结果表明,水力负荷和气水比对CODMn去除的影响较大,而对NH3-N的去除影响甚微。在水力负荷0.8 m3/(m2.h)、气水体积比1:1的优化工艺条件下,AZBAF对CODMn、NH3-N和藻类的平均去除率分别为47.1%、91.9%、42.4%。反冲洗后滤池内生物量减少,生物活性提高,在3 h后即可恢复正常运行。In this study, AZBAF was employed for pretreating micro-polluted source water, in order to examine the process characteristics at low temperature of 7.8-16.2℃. The results indicated that CODMn removal was influenced much by the variation of hydraulic loading and air-water ratio, as compared to that of NH3-N. Under the opthnum conditions of hydraulic loading 0.8 mV（m2-h） and air-water volume ratio 1：1, the average removal efficiencies of CODMn, NH3-N and alga were around 47.1%, 91.9% and 42.4%, respectively. After the backwashing operation, biomass was decreased in the AZBAF whereas an increase was found in the biological activity, and the biofilter could recover to the original level in 3 h.

关 键 词：沸石曝气生物滤池(AZBAF) 低温 微污染原水 反冲洗 

分 类 号：TU991.2[建筑科学—市政工程]