摘要
针对受污染的水库水源水进行中试规模的生物陶粒滤池预处理实验研究。结果表明 :生物陶粒滤池能有效地净化受污染水源水水质 ,对CODMn、NH3 N、NO-2 N、浊度、藻类总数、锰、THMFP等的平均去除率范围分别为 19 3%~ 35 %、89%~ 96 5 %、97 5 %~ 99%、5 7 5 %~ 69%、60 1%~84 3%、5 9%~ 84 6%、10 4 %~ 2 4 8%。其适宜的工艺参数为 :水力负荷 (滤速 ) 4~ 6m h ,气水比0 75∶1~ 1∶1;反冲洗周期 3~ 7d。
A pilot scale ceramic bead biofilter(CBB)is investigated on the pretreatment of eutrophic reservoir water.Significant removals of COD Mn,NH 3 N,NO- 2 N,Turbidity,Total Algae,Manganese and THMFP were observed in the range of 19.3%~35%,89%~96. 5%,97. 5%~99%,57. 5%~69%,60. 1%~84. 3%, 59%~84. 6% and 10. 4%~24. 8%,respectively.The optimal operating conditions were recommended as hydraulic loading of 4~6?m/h,air-to-water ratio at 0.75 and backwashing interval of 3~7?d.
出处
《北京大学学报(自然科学版)》
CAS
CSCD
北大核心
2003年第2期262-269,共8页
Acta Scientiarum Naturalium Universitatis Pekinensis
基金
国家"九五"攻关资助项目 ( 96-90 9 -0 3- 0 1)
关键词
生物陶粒滤池
水力负荷气水比
反冲洗周期
bio-ceramic filter
hydraulic loading
air-to-water ratio
backwashing interval