|
微污染源水净化新工艺—生物强化过滤研究
|
|
【给水排水实习论文】
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%~40%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20%提高到40%左右,出水浊度保证在1 NTU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10 m/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。
关键字:
微污染源水 净化 普通滤池 生物强化过滤 中图分类号:TU991.2 文献标识码:A 文章编号:1000-4602(2000)10-0018-03 A New Process for MicroPolluted Source Water TreatmentBiologically Enhanced Filtration LI Desheng,HUANG Xiaodong,WANG Zhansheng (Depart.of Environ Sci.and Eng.,Qinghua Univ.,Beijing 100084,China) Abstract: 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(CODMn) raised to about 40% from about 20%.Turbidity of filtered water was assured below 1 NTU
|
|
|