复合型道路抑尘剂在城市道路中的应用及经济分析研究

Application and Economics Analysis of Compound Dust Suppressants in Urban Roads

采用由多种可降解高分子材料组成的新型复合型道路抑尘剂喷洒酒泉市肃州区道路,研究喷洒前后城市道路扬尘中PM_(10)、PM_(2.5)和氮氧化物的变化及抑尘剂所带来的经济效益。结果表明,PM_(10)平均去除率为20%,喷洒后能迅速捕捉并吸附微粒粉尘,加速粉尘颗粒凝聚,最好去除效果高达40%;对PM_(2.5)和氮氧化物的去除效果约15%,没有PM_(10)显著;相对于传统洒水方式,喷洒道路抑尘剂可以节省30%经济用水,且对人体和环境无毒害。

A new - compound road dust suppression agent composed of various degradable polymers is used to spray the roads in Suzhou District, Jiuquan City. This paper researched on the variation of PM10, PM2.5 and nitrogen oxides in the urban road dust before and after spraying, as well as the economic benefits brought by dust suppression agents. The result shows that the average removal rate of PM10 is 20%. After the spraying, the dust suppression surface can promptly capture and absorb the particle and dust, accelerating the cohesion of dust particles. The best removal effect is up to 40%. As for PM2.5 and nitrogen oxides, the re- moval effect is about 15%, which is less remarkable than PM10, Comparing with the traditional way Of sprinkling, spraying road dust suppression agents can save 30% of water and is less harmful to human body and environment.