Road rainwater runoff pollution control system and its treatment method

Abstract

The invention relates to a road rainwater runoff pollution control system and a treatment method thereof. A road rainwater collection unit is located at the lower part of an isolation belt between a motor vehicle lane and a side pavement, a water inlet chamber is divided into an independent treatment chamber and an independent overflow chamber by an overflow plate in the water inlet chamber, the treatment chamber comprises an upper-part cavity and a lower-part filling assembly, the upper-part cavity is used for storing rainwater, the lower-part filling assembly is used for treating and purifying rainwater, a permeable sieve plate is arranged on the top of the filling assembly, a filtrated water outlet communicated with the overflow chamber is formed in the lower part of the overflow plate, and an overflow hole is formed in the upper part of the overflow plate and used for communicating the upper part of the treatment chamber with the overflow chamber; and a road rainwater storage unit is located at the lower part of a green belt on one side of the side pavement, a soil covering layer, a sand filling layer and an impounding reservoir are arranged from top to bottom, a water outlet in the lower part of the overflow chamber is communicated with the impounding reservoir through a rainwater pipe, a water outlet in the lower part of the impounding reservoir is connected with a water outlet pipe, and a control valve is arranged at the upper part of the water outlet pipe. According to the road rainwater runoff pollution control system, road rainwater can be smoothly discharged, and meanwhile, the runoff pollution is effectively controlled and adequately utilized from the source.

Description

Technical field [0001] The invention relates to a road rainwater runoff pollution control system and a processing method thereof, and belongs to the technical field of environmental engineering. Background technique [0002] With the rapid development of urbanization in my country, more and more cities are plagued by environmental problems, among which the problem of road rainwater runoff pollution is particularly prominent. As an important part of the urban watershed, roads are one of the main pollution sources of non-point source pollution of urban receiving water bodies. The main sources of pollution are: tire wear, pharmaceutical use, oil leakage, pesticide and fertilizer use, solids Waste, etc., pollution components mainly include organic or inorganic compounds, heavy metal compounds, nitrogen, phosphorus, oil pollutants, etc. [Chen Li, around, urban road rainwater collection and utilization technology analysis[J]. Northern Transport, 2014, Supplement, 56-59]. Road rainwat...

AI Technical Summary

Problems solved by technology

Although this technology can realize the graded purification of rainwater runoff floating matter, particulate matter and dissolved pollutants step by step, it also has the problem of poor treatment effect on heavy metal compounds, nitrogen, phosphorus, oil and other pollutants, so After treatment, the drainage can only enter the municipal pipe network, and cannot be used locally

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