微污染饮用水生物过滤影响因素的研究  

Factors Affecting Biological Filtration for Micro-polluted Water-supply

作　　者：余健[1] 曾光明[2] 谢水波[3] 何元春[1] 张长[2] 任文辉[1] 

机构地区：[1]湖南大学土木工程学院,长沙410082 [2]湖南大学环境科学与工程系,长沙410082 [3]南华大学建筑工程与资源环境学院,衡阳421001

出　　处：《环境科学与技术》2003年第5期1-3,共3页Environmental Science & Technology

基　　金：国家自然科学基金资助项目 ( 70 1 71 0 55)

摘　　要：通过试验探讨了过滤介质、空床接触时间、水温和反冲洗方式对生物过滤去除有机物的影响。试验结果表明 :活性炭、石英砂组成的双层滤料生物滤池对高锰酸盐指数、UV2 5 4的去除效果比无烟煤、石英砂组成的双层滤料滤池和单层石英砂滤料滤池好 ;在一定的范围内 ,随着接触时间或水温的增加 ,各滤柱对高锰酸盐指数的去除率增加 ;加氯水反冲洗方式对生物滤池去除高锰酸盐指数、UV2 5Filter medium, empty bed contact time (EBCT), water temperature and back-flush mode, etc. are commonly considered as main factors affecting operation of a biological filter for treating micro-polluted water. Bench-scale experiment in a water-works on bank of the Xiangjiang River was conducted for evaluation of bio-filters. The experimental results showed that the dual-layer filter consisting of activated carbon and silicon sand was better than that of anthracite and silicon sand in term of COD_(cr) and UV_(254) removals. With the increase of contact time and temperature, performance (COD_(cr) removal) of the bio-filer became better.

关 键 词：微污染饮用水 有机物 生物过滤 影响因素 

分 类 号：X17[环境科学与工程—环境科学]