生活污水处理站板框污泥脱水系统的设计与改造

发布时间：2018-01-14 00:19

本文关键词：生活污水处理站板框污泥脱水系统的设计与改造　出处：《中国给水排水》2016年24期 　论文类型：期刊论文

【摘要】：介绍了某小型生活污水站板框污泥脱水系统的设计和改造实例。在原有系统中,给料泵设计选用额定工作压力为0.6 MPa的螺杆泵,实际运行发现,螺杆泵后所设回流阀门手动调节困难,造成螺杆泵实际提供的压泥压力在(0.5±0.2)MPa范围内剧烈变化,压力不足且不稳定,压泥时间即使长达20 h,板框压滤机的滤室内仍为泥渣混合物,不能形成泥饼,含水率在90%左右。通过改造,选用出口压力高且稳定的隔膜泵作为给料泵,当隔膜泵出口压力为0.6 MPa、压泥时间为10 h时,泥饼含水率达到73%,板框压滤机压泥效果较好。
[Abstract]:This paper introduces the design and renovation of the plate and frame sludge dewatering system in a small domestic sewage station. In the original system, the screw pump with rated working pressure of 0.6 MPa is selected for the design of the feed pump, and the actual operation is discovered. It is difficult to manually adjust the backflow valve after screw pump, which causes the pressure of mud pressure provided by screw pump to change dramatically in the range of 0.5 卤0.2 MPA, and the pressure is insufficient and unstable. Even if the mud pressing time is up to 20 hours, the filter chamber of the plate-frame filter press is still a mixture of mud and slag, which can not form mud cake, and the moisture content is about 90%. The diaphragm pump with high outlet pressure and stable pressure was selected as feed pump. When the outlet pressure of diaphragm pump was 0.6 MPA and the time of mud pressure was 10 h, the moisture content of mud cake reached 73%. The plate and frame filter press has better mud pressing effect.
【作者单位】：安徽工业大学能源与环境学院;安徽工业大学生物膜法水质净化与利用技术教育部工程研究中心;
【分类号】：X799.3
【正文快照】： 山西某煤矿生活污水处理站设计污水处理量为1 300 m3/d,设计出水水质达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)的一级A标准。主体工艺采用水解酸化+接触氧化+瓷砂滤池。接触氧化池中的微生物膜附着在填料上,脱落的生物膜经滤池过滤截留,反冲洗水排入调节池,进入

【参考文献】