ZENG Mu-hai,XIE Xiao-long.Application of Initial Rainwater Storage Tank in a Lake Comprehensive Treatment Project in Wuhan[J].China Water & Wastewater,2021,37(12):93-97.
初雨调蓄池在武汉市某湖泊综合整治工程中的应用
- Title:
- Application of Initial Rainwater Storage Tank in a Lake Comprehensive Treatment Project in Wuhan
- Keywords:
- initial rainwater; runoff pollution control; intelligent diversion well; combined storage tank
- 摘要:
- 武汉市某湖泊综合整治工程采用“截流—调蓄—处理”方案，通过智能分流井将初雨截流至组合式初雨调蓄池，雨后再抽排至污水处理厂处理，以削减入湖污染负荷。组合式初雨调蓄池由格栅渠、隔油沉砂池、旱流污水泵站、调蓄池及附属通风除臭系统组成，所有组成部分与调蓄池合建。格栅渠、隔油沉砂池可对初雨进行一级处理，减轻污水厂处理负荷。结合该工程的实施，介绍了智能分流井的工作原理、组合式调蓄池的设计、自冲洗系统的设计，以及调蓄容积、通风换气量和除臭风量的计算，可为初雨调蓄池的设计提供参考。
- Abstract:
- The scheme of “interception-storage-treatment” was adopted in a comprehensive treatment project of a lake in Wuhan. Initial rainwater was intercepted to the combined initial rainwater storage tank through intelligent diversion wells, and then pumped to the sewage treatment plant for treatment after the rain, so as to reduce the pollution load flowing into the lake. The combined initial rainwater storage tank consisted of grid channel, oil separation grit chamber, dry weather flow pumping station, storage tank, adjunctive ventilation and odor control system, and all the components were constructed in conjunction with the storage tank. Grid channel and oil separation grit chamber could be used for pretreatment of initial rain to reduce the load of sewage treatment plant. Based on the implementation of the project, working principle of intelligent diversion well, design of combined storage tank and self-washing system and calculation of storage capacity, ventilation flow rate and deodorization air volume were introduced, which can provide reference for the design of the initial rainwater storage tank.
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