摘要
考察了沸石-无烟煤双层滤料生物滤池处理微污染水的运行效能。结果表明,沸石-无烟煤生物滤池可以有效提高出水水质,对CODMn、NH3-N及浊度的去除率分别达到39.5%,93.6%和91.3%,而且工作区间主要在滤层上部40 cm内;反冲洗对滤料表面附着的微生物膜影响很小,生物膜在反冲洗后1.5 h内能恢复到反冲洗前的水平。
Efficiency of mordenite-anthracite biofilter for micro-polluted water treatment was investigated.The results showed that effluent water quality could be improved effectively with mordenite-anthracite biofilter,and the removal rate for CODMn,NH3-N and turbidity could be at 39.5%,93.6% and 91.3%,respectively.The removing process occurred mainly within 40 cm at upper layer of the filter.Backwash had little effect on the microbial film at the surface of filter media,and 1.5 h after backwash the microbial film could be renewed.
出处
《供水技术》
2008年第5期8-10,共3页
Water Technology
关键词
沸石
无烟煤
生物滤池
微污染
mordenite
anthracite
biofilter
micro-pollution
