ZHOUChuan-ting,ZHUSha-li,YANGDian-hai,et al.Pilot Study on On-site Rapid Treatment Technology of Initial Rainwater[J].China Water & Wastewater,2022,38(19):108-113.
初期雨水就地快速处理技术中试研究
- Title:
- Pilot Study on On-site Rapid Treatment Technology of Initial Rainwater
- Keywords:
- initial rainwater; coagulation and precipitation; high efficiency fiber filter; on-site rapid treatment; black and odorous water body
- 摘要:
- 针对巢湖区域南淝河雨天出现的黑臭水体现象，自主研发出初期雨水末端就地快速处理工艺，即快速混凝沉淀+高效纤维滤池组合工艺，其中高效纤维滤池具有滤料密度可调节、使用时效长且截污能力强等特点。降雨期间，研究了不同启动方式和不同污染负荷下中试系统对污染物的去除效果。结果表明，实时启动缩短了装置的启动时间，可实现快速启动；当沉淀池表面负荷为20.0~33.0 m3/（m2·h）时，快速混凝沉淀+高效纤维滤池组合工艺对SS、COD、TP的去除率分别为80%~99%、41%~88%和78%~90%，能够去除大部分非溶解性污染物。
- Abstract:
- To solve the problem of black and odorous water body in rainy days in Nanfei River, Chaohu area, a process for on-site rapid end-of-pipe treatment of initial rainwater was developed. The combined process consisted of rapid coagulation and precipitation and high efficiency fiber filter, and the high efficiency fiber filter has the advantages of adjustable filter density, long service age and strong interception capacity. The pollutants removal efficiencies of the pilot system under different start-up modes and pollution loads were investigated during rainfall. Real-time start-up shortened the start-up time of the device and realized fast real-time start-up. When the surface load of sedimentation tank was 20.0-33.0 m3/(m2·h), the removal efficiencies of SS, COD and TP by the combined process were 80%-99%, 41%-88% and 78%-90%, respectively, which was capable of removing most of the insoluble pollutants.
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