Concentrated drainage processing system for highway

Abstract

The invention discloses a concentrated drainage processing system for a highway. The concentrated drainage processing system comprises a water distribution well, a sedimentation pool, a subsurface constructed wetland and an evaporation pool, wherein the water distributing well is communicated with the sedimentation pool, the sedimentation pool is communicated with the subsurface constructed wetland, and the subsurface constructed wetland is communicated with the evaporation pool; the water inlet of the water distributing well is connected with the drainage structure of the highway; the subsurface constructed wetland comprises a first pool body, the first pool body is internally provided with a water inlet side overflow lattice wall and a water outlet side overflow lattice wall, the water inlet side overflow lattice wall and the water outlet side overflow lattice wall are both downwards open type overflow walls, and a gravel layer, a coarse sand layer, a clay layer and a fine sand layer are flatly paved from bottom to top in a layered paved pool positioned between the water inlet side overflow lattice wall and the water outlet side overflow lattice wall; the layered paved pool is internally provided with intermediate overflow lattice walls, and a lower overflow lattice wall is arranged between adjacent intermediate overflow lattice walls. The concentrated drainage processing system disclosed by the invention has the advantages of simple structure, reasonable design, timely road surface drainage and good use effect, is convenient to construct and easy and convenient to use and maintain and can solve the problem of road (bridge) surface runoff pollution of the highway.

Description

Technical field [0001] The invention relates to a water treatment system, in particular to a centralized drainage treatment system for expressways. Background technique [0002] Water treatment ponds are common in expressway design. For road drainage of ordinary road sections in China, mortar and rubble evaporation ponds are generally installed beside the road, and all roadbed water is not collected, but only for water bodies with drinking, breeding and other functions. Only then consider collecting all the roadbed drainage. However, there is no domestic design specification for the collection and treatment of initial rainwater. As a result, the existing highway road (bridge) surface water treatment system is not perfect, and it has disadvantages such as poor water treatment effect and higher maintenance cost in the later period, and can not effectively reuse water resources, causing serious water waste. In summary, there is a lack of a centralized drainage treatment system for...

AI Technical Summary

Problems solved by technology

Therefore, the existing highway (bridge) surface water treatment system is not perfect enough, and has defects such as poor water treatment effect and high maintenance cost in the later period, and cannot effectively reuse water resources, resulting in serious waste of water resources

To sum up, there is a lack of a centralized drainage treatment system for expressways with simple structure, reasonable design, convenient construction, easy use and maintenance, and good use effects, which can effectively solve the water treatment problem of expressway pavement and can improve water resources. efficient reuse

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