Comprehensive treatment device for highway runoff pollution of water resource protection area

Abstract

A comprehensive treatment device for highway runoff pollution of a water resource protection area comprises a road surface runoff chute, a physical filter tank, a physical adsorbing tank, a chemical treatment tank, a biochemical tank, a slope surface runoff chute and a drop manhole. The physical filter tank, the physical adsorbing tank, the chemical treatment tank and the biochemical tank are sequentially connected in series and communicated. The road surface runoff chute is communicated with the physical filter tank, a guide flow wall is disposed in the biochemical tank provided with a wateroutlet, the physical filter tank is further provided with an overflow port communicated with the biochemical tank, and the slope surface runoff chute is communicated with the drop manhole which is connected with the biochemical tank. The comprehensive treatment device for highway runoff pollution of the water resource protection area has the advantages of being simple in structure, simple and convenient to maintain, capable of effectively lowering concentration of suspended solid particles, oil, heavy metal and the like in road surface runoff, also capable of performing emergency treatment onleakage of toxic substances in emergencies, reducing effect of road surface runoff on surrounding soil and water, and enabling treated highway runoff stored in the biochemical tank to be used for irrigation and the like.

Description

technical field [0001] The invention relates to the technical fields of highway traffic engineering and environmental protection, in particular to a comprehensive treatment device for highway runoff pollution in water source protection areas. Background technique [0002] In the field of highway traffic engineering, with the rapid development of traffic facilities, a large number of issues such as the impact of highways on the surrounding environment have emerged, and the problem of water resource protection around expressways has become increasingly prominent. Studies at home and abroad have shown that many pollutants such as petroleum, heavy metals (Cu, Pb, Zn, etc.), suspended solid particles or ions will be deposited during highway operation, and the road surface runoff formed by rainfall washing the road surface will pollute surface water and groundwater. To a great extent. Most road constructions are distributed linearly and inevitably cross some important rivers, tou...

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Problems solved by technology

[0003] In recent years, my country has carried out some research on the mechanism of road surface runoff pollution, but there are few studies on the comprehensive treatment measures of road surface runoff pollution, especially the effective treatment measures for road surface runoff in areas with high standard discharge requirements such as water source protection areas are seldom reported. , and the comprehensive treatment measures for road surface runoff pollution that can take into account the normal operation period and the leakage of dangerous goods are rarely reported

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