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.
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Pilot Study on On-site Rapid Treatment Technology of Initial Rainwater

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第38卷 Number: 第19期 Page: 108-113 Column: Date of publication: 2022-10-01
Author(s):
ZHOU　Chuan-ting1; 2;  ZHU　Sha-li2;  YANG　Dian-hai1;  AN　Ying3;  ZHOU　Zhen3;  YU　Si-qi3
（1. State Key Laboratory of Pollution Control and Resource Reuse， College of Environmental Science and Engineering， Tongji University， Shanghai 200092， China； 2. Shanghai Urban Construction Design and Research Institute Co. Ltd.， Shanghai 200125， China； 3. College of Environmental and Chemical Engineering， Shanghai University of Electric Power， Shanghai 200090， China）
Keywords:
initial rainwater;  coagulation and precipitation;  high efficiency fiber filter;  on-site rapid treatment;  black and odorous water body
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.
Last Update: 2022-10-01