According to the project of Hengda Section belonging to Daguang Freeway Bureau in Hebei Province, aiming at the type and the processing mechanism of the pollutants in the flowing water on the pavement, it is put forward a composite process for passage collecting pool purifying filtration system, which includes aerobic digestion-precipitation-adsorption of artificial materials-soil filtration. The process mainly uses vermiculite as a filter material, and the pollutants of the flowing water on the pavement are controlled in drinking water quality standards, which not only solves the problem of c...
