地铁洗车废水的水质特征及处理工艺研究——以某市轨道交通车辆基地为例  

Study on Water Quality Characteristics and Treatment Process of Subway Car Washing Wastewater——Take the Rail Transit Vehicle Base of a City as an Example

作　　者：李宝玉 尹姗姗 Li Bao-yu;Yin Shan-shan

机构地区：[1]长沙轨道交通运营有限公司,湖南长沙410000

出　　处：《化工设计通讯》2021年第9期163-165,共3页Chemical Engineering Design Communications

摘　　要：研究结合地铁洗车废水水质检测结果探讨地铁洗车废水的水质特征,结果表明:地铁洗车时选择合适的清洁机和洗涤剂,洗车废水中污染物指标均较低,可以达到《污水排入城镇下水道水质标准》B级标准,对比城镇污水处理厂污染物排放标准三级标准,悬浮物、溶解性固体、COD超标较明显。根据地铁洗车废水处理后的水质特征,分析了絮凝、沉淀、光催化典型工艺的处理效果,并对其他常见的地铁洗车废水处理工艺进行了阐述和优劣比较,为研究其他地铁洗车废水的水质情况和处理工艺的选择提供了参考和思路。The water quality characteristics of subway car washing wastewater were discussed based on the water quality test results of subway car washing wastewater.The results showed that the pollutant index of subway car washing wastewater was low when the appropriate cleaning machine and detergent were selected,which could reach the level B standard of“water quality standard for sewage discharged into urban sewers”,compared with the level 3 standard of pollutant discharge standard for urban sewage treatment plants,Suspended solids,dissolved solids and COD exceeded the standard obviously.According to the water quality characteristics of subway car washing wastewater after treatment,this paper analyzes the treatment effect of typical processes of flocculation,sedimentation and photocatalysis,and expounds and compares the advantages and disadvantages of other common subway car washing wastewater treatment processes,so as to provide reference and ideas for studying the water quality and treatment process selection of other subway car washing wastewater.

关 键 词：洗车废水 光催化 排放标准 污水处理 

分 类 号：X731[环境科学与工程—环境工程]