FACILITY DECREASING NON-POINT SOURCE POLLUTION

摘要

The present invention relates to non-point source pollution reducing facilities of railway facilities. Characteristics of the railway facilities are reflected to the non-point source pollution reducing facilities which are appropriate to reduce discharge of non-point source pollutants. The non-point source pollution reducing facilities can help low-carbon green growth of a railway industry by stably removing non-point source pollution in a manner specialized for railway facilities. Particularly, the present invention is provided for easy and convenient maintenance of the facilities. The non-point source pollution reducing facilities comprise a concrete block including a pretreatment tank, a filtration tank, and a filtering medium tank. The pre-treatment tank has an oil absorption screen which absorbs oil contained in non-point source pollutants. The oil absorption screen is installed in the pre-treatment tank to adjust a flow rate of rain effluent and to absorb oil contained in the non-point source pollutants. The oil absorption screen includes an oil absorbent therein and also includes a cover to replace the oil absorbent. The present invention provides the non-point source pollution reducing facilities to which the oil absorption screen is applied.