论文部分内容阅读
海绵城市的兴起使透水性机动车道路的需求大增.一方面,传统的沥青道路修建材料中含大量可挥发和可淋溶的有机物,在修建和使用过程中可能污染环境;另一方面,透水沥青道路为多孔结构,在使用中可能对下渗经过的路表径流中的污染物有吸附截留作用.为明确这两方面的规律,本文以苯酚和铅为研究对象,研究了新建沥青道路的污染物释放规律和使用中沥青道路对路表径流中污染物的截留作用.结果表明,新建沥青道路在路表径流下渗淋溶过程中有大量苯酚释放,而重金属铅没有检出;使用中的沥青道路对下渗经过的苯酚和重金属铅有一定的截留作用.因此,在沥青道路设计和施工中,应有针对性的改善材料成分和道路结构,以减少本身污染物的释放并加强对污染物的截留作用.
The rise of a sponge city raises the demand for water-permeable motor vehicle roads, which, on the one hand, contain large amounts of volatile and leachable organic matter in their construction materials and may pollute the environment during construction and use. On the other hand, Permeable asphalt roads are porous structures that may adsorb and retain contaminants in the surface runoff through which infiltration takes place in order to clarify these two aspects.In this paper, phenol and lead are studied in this paper to study the new asphalt roads And the retention of pollutants in runoff by using asphalt pavement in the process.The results show that there is a large amount of phenol released while heavy metal lead is not detected in the new asphalt pavement runoff infiltration and leaching process, Asphalt road in infiltration through the phenol and heavy metal lead have a certain interception.Therefore, asphalt road design and construction, should be targeted to improve the material composition and road structure to reduce the release of their own pollutants and to strengthen The retention of pollutants.