微污染源水净化新工艺——生物强化过滤研究  

A New Process for Micro-Polluted Source Water Treatment- Biologically Enhanced Filtration

作　　者：李德生[1] 黄晓东[1] 王占生[1] 

机构地区：[1]清华大学环境科学与工程系,北京100084

出　　处：《中国给水排水》2000年第10期18-20,共3页China Water & Wastewater

基　　金：广东省自然科学基金资助项目

摘　　要：通过对传统工艺中的普通滤池进行生物强化 ,可以使原水中氨氮 (NH3-N)的去除率由原来的 30 %～ 4 0 %提高到 93% ,亚硝酸盐氮 (NO- 2 -N)的去除率由零提高到 95% ,有机物(CODMn)的去除率由 2 0 %提高到 4 0 %左右 ,出水浊度保证在 1NTU以下 ,经消毒后能满足卫生学指标的要求。经长期运行测定 ,在滤速 1 0m/h、反冲洗 ( 1～ 2次 ) /d情况下依然保持良好的处理效果。该技术不增加任何新设施 ,只是强化现有工艺 ,是解决微污染源水水质的一项新途径。Biological enhancement of ordinary filter in the conventional process was studied. The results showed that removal rate of ammonia nitrogen raised to 93% from 30%～40%, that of nitrite raised to 95% from zero and that of organic matter (COD Mn ) raised to about 40% from about 20%. Turbidity of filtered water was assured below 1 NTU and could meet the requirement of sanitary index after disinfection. Through a long operating time, the treatment efficiency of the system still kept high at filtration rate of 10 m/h and backwash frequency of 1～2 time/d. Only enhancing the conventional treatment process, the new process is a way to deal with micro-polluted source water without increasing any equipment.

关 键 词：微污染源水 净化 普通滤池 生物强化过滤 

分 类 号：TU991[建筑科学—市政工程]