生态砾石床技术在污水处理厂尾水处理中的应用  

Application of Ecological Gravel Bed Technology in Treatment of Tail Water in Sewage Treatment Plants

作　　者：石立国[1] 皮尧 张继明 樊星[1] SHI Liguo;PI Yao;ZHANG Jiming;FAN Xing(China Construction Second Engineering Bureau Co.,Ltd.,Beijing 101101,China)

机构地区：[1]中国建筑第二工程局有限公司,北京101101

出　　处：《施工技术》2020年第18期46-48,79,共4页Construction Technology

基　　金：中建二局科技研发课题:水环境综合治理技术研究与应用(180001)。

摘　　要：以九江市某污水处理厂尾水深度处理为研究对象,探究生态砾石床技术对污水处理厂尾水中化学需氧量(CODCr)、生物需氧量(BOD5)、氨氮(NH3-N)、总磷量(TP)的去除效果。生态砾石床对CODCr的去除率为70%,对BOD5,NH3-N的去除率分别保持在72%,94%,当TP系统中加入聚化氯化铝(PAC)后,去除率为85%。生态砾石床系统对CODCr,BOD5,NH3-N,TP均有很高的去除率,其中对NH3-N,TP有极高的去除率。In this paper,the deep treatment of tail water in a sewage treatment plant in Jiujiang City is studied,and the removal effect of CODCr,BOD5,NH3-N and TP in the tail water of sewage treatment plant is explored. It is concluded that the CODCrremoval efficiency of the ecological gravel bed is 70%,the removal rate of BOD5 is basically maintained at 72%,the removal rate of NH3-N is basically maintained at 94%,and the removal efficiency of TP in the system after adding PAC is 85%. The ecological gravel bed system has a high removal rate for CODCr,BOD5,NH3-N,TP,and has a very high removal rate for NH3-N and TP.

关 键 词：水治理 尾水 生态砾石床 方案设计 

分 类 号：TU992.3[建筑科学—市政工程]