基于减排再利用的路桥面融雪剂残留和排放规律研究

Research on Residue and Emission Rule of Deicing Agent on Road and Bridge Surface based on Emission Reduction Reuse

北京地区高速公路全年全天候通行,每年冬春季需要使用融雪剂,其形成的有害物质长期积累,给周边土壤、水体带来严重环境威胁。为减少融雪剂的排放,实现融雪剂和水资源的回收利用,本文以京藏高速公路为研究对象,选取有代表性的多组采样点,进行了路桥面径流实验和土壤采样实验,对融雪剂残留成分在不同环境条件下的含量进行了检验和分析;同时对路桥面径流排放特性进行了实地调研取证分析,得出路桥面径流融雪剂残留特性和排放规律。

The expressways in Beijing are open all the year round. Snowmelt agents need to be used in winter and spring every year. The long-term accumulation of harmful substances has brought serious environmental threats to the surrounding soil and water. In order to reduce the discharge of snowmelt agent and realize the recovery and utilization of snowmelt agent and water resources,the Beijing-Tibet Expressway was selected as the research object,and the runoff experiment and soil sampling experiment were carried out on the road and bridge surface,and the content of residual components of snowmelt agent was tested and analyzed under different environmental conditions. At the same time,the runoff discharge characteristics of bridge deck were investigated and analyzed,and the residual characteristics and discharge rules of snowmelt agent in bridge deck runoff water were obtained.