某高校学生公寓洗浴废水回用实例分析

A case study on the reuse of bath wastewater in a college student apartment

采用实例分析法,以某高校建设中水站为例,从中水原水水源选取及其水量水质、工艺流程和主要设备、运行管理、出水水量和水质及经济效益等方面进行分析,结果表明:洗浴废水属于优质杂排水,可作为中水水源,其水量水质相对稳定;膜生物反应器MBR工艺适用于高校学生公寓洗浴废水的处理,具有工艺流程简单、操作维护方便及占地面积小等特点;洗浴废水中主要污染物为浊度、五日生化需氧量BOD5、化学需氧量COD及总大肠菌群等,MBR工艺对其可有效去除,出水水量和水质可满足冲厕和绿化需求,每年至少可节约自来水量3万9 181m^3。

In order to provide relevant experience for the water reuse project in the new campus,which is not available for the municipal water reuse,a case study method is adopted for the construction of water reuse station in a university.The selection of waste water,and 让 s water quantity and water quality,the technological process and main equipment,the operation management,the water outlet quantity and water quality,and the economic benefit are analyzed.The results show that the bathing wastewater belongs to high-quality living sewage,which can be used as the water source of the water reuse,and its water quantity and water quality is relatively stable.Membrane Bioreactor(MBR)process is suitable for the treatment of bath wastewater in college student apartment,which is characterized by simple technological process,convenient operation and maintenance,and small occupation area.The main pollutants in the bath wastewater are turbidity,five-day biochemical oxygen demand(BOD5),chemical oxygen demand(COD),total coliform group,etc.MBR process has a high removal rate for them,and the water outlet quantity and the water quality can meet the needs of flushing and greening,which can save water at least 39,181m^3/yr.