活化沸石曝气生物滤池预处理微污染源水的研究  

Pretreatment on micro-polluted source water by activated zeolite biological aerated filter.

作　　者：孙同喜[1] 蒋轶锋[1] 郑萌璐[1] 陈建孟[1] 陈浚[1] 胡成聪 李军[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 [2]温州水务集团有限公司,浙江温州325000

出　　处：《中国环境科学》2011年第3期377-383,共7页China Environmental Science

基　　金：国家科技重大专项(2008ZX07421-002-06;2008ZX07106-2-2;2008ZX07101-006-07);"十一五"国家科技支撑计划项目(2007BAE58B07);浙江省重大科技专项项目(2007C13081);杭州市重大科技攻关项目(20062912A06);浙江省自然科学基金(Y5080142)

摘　　要：采用上流式活化沸石滤料曝气生物滤池(AZBAF)对杭州市某微污染地表源水进行生物预处理.结果表明,活化沸石的高效吸附作用可使AZBAF通过自然挂膜实现快速启动.在水力负荷1.2m/h,气水比为(3～1):1条件下,AZBAF对TOC和CODMn的去除率分别为40%～60%和10%～27%,尤其对小分子量(MW<1kDa)有机物具有良好的降解作用.同时系统对NH3-N的去除率保持在90%以上.污染物的去除主要发生在滤池30cm以下部分,这与其中微生物的数量和活性分布规律一致.暂时停运(5～10d和35d)对生物过滤影响较小,系统重启后可在6～8h和24h内基本恢复至原有处理水平.An up-flow activated zeolite media biological aerated filter（AZBAF） was developed and employed for the treatment of micro-polluted water in Hangzhou.The AZBAF could start up quickly by an efficient adsorption of the media during the natural precoating period.Under the conditions of hydraulic loading 1.2m/h and gas/water ratio 3～1：1,around 40%～60% and 10%～27% of organics could be romoved in terms of TOC and CODMn,respectively,in which most of the low molecular weight organics（MW1kDa） was efficiently biodegraded.Meanwhile,the removal efficiency of NH3-N was stably kept over 90% during the AZBAF operation.Additionally,most pollutants were removed in the lower part of the filter column（0～30cm）,and this removal characteristics was somehow consistent with the distribution profiles of biomass（phospholipid-P） and their activities（oxygen uptake rate）.In the case of shutdown of the AZBAF in both short-term（5～10d） and long-term（35d）,the biofilter could be recovered to its original performance in 6～8h and 24h,respectively.

关 键 词：微污染源水 活化沸石 曝气生物滤池 氨氮 有机物 分子量分布 

分 类 号：X703.1[环境科学与工程—环境工程]