生物滤池处理微污染水效能的试验研究  

Experimental study on the efficiency of the treatment of micro-polluted river water with biofilter

作　　者：杨艳玲[1] 李星[1] 张晔[1] 李圭白[2] 

机构地区：[1]北京工业大学北京市水质科学与水环境恢复工程重点实验室,北京100022 [2]哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090

出　　处：《工业水处理》2007年第4期17-20,共4页Industrial Water Treatment

基　　金：国家863高技术发展计划资助项目(2004AA601020);北京市属市管高校人才强教计划资助项目(05004014200607)

摘　　要：以微污染江水为试验水样,通过中试考察了石英砂滤池和GAC-石英砂滤池的运行效能,探讨生物滤池处理此类水体的可行性。结果表明,生物滤池处理微污染水可获得良好的出水水质。二者对浊度有很好的去除效果;石英砂滤池对NH3-N、CODMn及UV254平均去除率分别为72.4%、19.6%及22.9%;GAC-石英砂滤池运行效果更好,平均去除率分别达84.5%、39.6%和42.5%;稳定运行期间,二者对NO2--N的去除率接近100%,但在运行周期及应对水质突变方面,GAC-石英砂滤池的性能明显优于石英砂滤池,因此,采用GAC-石英砂滤池可以更好地提高出水水质。本研究为给水厂普通滤池改造成生物滤池的可行性和有效性提供了试验依据。Taking the micro-polluted river water as water sample,the operational efficacy of sand biofilter and GAC- sand biofilter has been investigated through pilot-scale experiments. The feasibility of the biofilters for treating this water body is discussed. The results show that the treated water quality can be obviously improved by the biofilters. Both biofilters show good results for the removal of turbidity. The average removal rate of sand biofilter on NH3-N,CODMn and UV254 are 72.4%, 19.6% and 22.9% respectively. The GAC-sand biofilter shows much better operational effect. The average removal rate on NH3-N, CODMn and UV254 are 84.5%, 39.6% and 42.5% respectively. The removal rate of both biofilters on NO^- 2-N is nearly 100% during steady operation. But during the operation period and in treating the sudden changes of water quality, the GAC- sand biofilter is clearly better than that of the sand biofilter. Therefore,the treated water quality can be improved much better by the GAC- sand biofilter. This study provides experimental basis for water plants with the feasibility and effectiveness of reforming ordinary filters to biofilters.

关 键 词：活性炭-石英砂双层滤池 石英砂滤料 生物滤池 微污染水 

分 类 号：X703[环境科学与工程—环境工程]