复合型道路抑尘剂在城市道路中的应用及经济分析研究
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摘要
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 PM_(10),PM_(2.5) 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 PM_(10) 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 PM_(2.5) and nitrogen oxides,the removal effect is about 15%,which is less remarkable than PM_(10). 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.
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 PM_(10),PM_(2.5) 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 PM_(10) 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 PM_(2.5) and nitrogen oxides,the removal effect is about 15%,which is less remarkable than PM_(10). 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.
引文
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[2]竹涛,李冉冉,李笑阳,等.北京市道路扬尘时空变化特征的研究[J].环境污染与防治,2016,38(12):38-42.
[3]张莉.道路抑尘剂的应用及研究进展[J].广东化工,2017,44(5):110-111.
[4]敬小英,丁世敏,罗曼琳,等.我国城市可吸入颗粒物污染控制重点分析[J].环境与发展,2016,28(2):64-68.
[5]郑晓霞,李令军,赵文吉,等.京津冀地区大气NO2污染特征研究[J].生态环境学报,2014(12):1938-1945.
[6]郑向军,李晋生,薛峰,等.新型环保道路抑尘剂在城市道路的应用[J].环境工程技术学报,2014,4(2):169-172.
[7]欧阳,赵文吉,郑晓霞,等.机动车排放对PM2.5空间分布的影响研究[J].生态环境学报,2015(12):2009-2016.