北京市高效循环水洗车技术应用研究

在对洗车用水特点及高效循环水洗车技术进行分析的基础上,针对当前洗车行业耗水量大、洗车废水污染环境等问题,结合北京社会发展、水资源状况、节水力度、行业节水推广情况,阐述了基于WR-RO、WR-UF技术的洗车循环用水设备的工艺流程、技术特征、运行工况及处理效果。洗车废水中含有油污、泥砂、表面活性剂及其他可溶性有机物。以超滤为核心工艺处理洗车废水,对浊度、COD、阴离子表面活性剂的去除率分别为98%、68%、69%。高效循环水洗车技术具有可操作性强、处理水质安全、运行成本低、效益可观等特点,应用推广价值高。

The application study based on high efficient circulating water technology for washing car in Beijing

Based on analysis of water utilization and high efficient circulating water techniques for washing car, the efficient-circulation washing technology, In view of the current problems in car washing industries,such as high water consumption and washing wastewater pollution of the environment, the technological process, technical characteristics, running condition and treatment effects of circulating water appratus for washing car were analyzed based on the WR-RO and WR-UF techniques. Wastewater originated from car washing contains many impurities, such as free oil, oil emulsion, clay sludge, surfactant and other soluble organic matters. By using ultrafiltration as the key treatment process of car washing wastewater, the removal rates of turbidity, COD, and anionic surfactant were 98%, 68%, and 69%, respectively. The high efficient circulating water technology for washing car has the characteristics of strong operability, water quality safety, low running cost and considerable benefit, and has important extention values.