砾间接触氧化工艺用于微污染水体净化的设计案例分析  

Design Case Studies on Application of Gravel Contact Oxidation Process(GCOP)in Low-Polluted Water Purification

作　　者：李应辉 LI Yinghui(Shanghai Investigation,Design&Research Institute Co.,Ltd.,Shanghai 200335,China)

机构地区：[1]上海勘测设计研究院有限公司,上海200335

出　　处：《净水技术》2022年第S02期185-190,共6页Water Purification Technology

摘　　要：通过介绍某污水厂尾水和某河道水体砾间接触氧化工程案例的设计与运行效果,文中分析总结了砾间工艺在微污染水体的设计及应用经验。为满足COD_(Cr)、氨氮、TP的稳定去除,两个案例均采用生化曝气、加药除磷、沉淀及稳定功能集成的砾间净化槽工艺设计,分别确定了工艺参数、工艺分区、关键设备材料以及水力流态控制方案等。为了便于运行管护,通过对砾石筛选进行质量控制,老化污泥和增大污泥储存空间,优化沉淀稳定区工艺设计与排泥周期运行控制,形成了排泥与防堵塞相结合的技术方案。案例的运行效果显示,砾间工艺用于微污染水体净化具有明显优势,可为相关工程应用推广提供技术参考。The design and application of gravel contact oxidation process(GCOP)in the low-polluted water is analyzed and summarized in this paper by introducing the design and operation effect of a WWTP effluent GCOP and a river water GCOP case.The integrated GCOP is adopted with functions of biochemical aeration,chemical phosphorus removal,sedimentation and stabilization in these two cases.Process parameters,process zoning,key equipment and materials,and hydraulic flow control suggestions,etc.are finalized respectively for the stable removal of COD_(Cr),ammonia nitrogen and TP.A technical solution for sludge discharge and anticlogging is formed in order to facilitate operation and maintenance through quality control of gravel screening,sludge aging and increasing sludge storage space,and design optimizationt of the sedimentation stabilization zone and sludge discharge cycle control.Operation effect analysis shows that GCOP has obvious advantages in the purification of low-polluted water which can provide technical reference for the promotion of related engineering applications.

关 键 词：砾间接触氧化 尾水 河水 净化 防堵塞 

分 类 号：TU992[建筑科学—市政工程]