Method and device for monitoring rainfall runoff pollution of expressway pavements

Abstract

The invention discloses a method and a device for monitoring the rainfall runoff pollution of expressway pavements. The method comprises the following steps of: based on the flow measurement principle of an open channel, arranging a water measurement weir trough at a runoff discharge opening of an expressway pavement to draw shallow waterflow on the pavement into the water measurement weir trough to form steady open channel waterflow; arranging an ultrasonic flow sensor above the water measurement weir trough, and measuring the water level height in the water measurement weir trough in a non-contact mode to form a water level signal; transferring the water level signal to an automatic water quality sampler, and realizing the conversion and flow calculation of the water level signal of the weir trough as well as the display and the storage thereof by the water quality sampler; and utilizing a built-in peristaltic pump and a program control function of the water quality sampler to finish the time sampling of the runoff at the same time so as to successfully realize the real-time continuous monitoring and automatic monitoring of rainfall runoff pollution of the rainfall-runoff whole process of the expressway pavements.

Description

technical field [0001] The invention belongs to the technical field of non-point source pollution and water quality pollution monitoring, and in particular relates to a monitoring method and device for rainfall runoff pollution on highway road surfaces. Background technique [0002] Rainfall runoff pollution on highway pavement belongs to the category of non-point source pollution. Non-point source pollution monitoring is the basic work for non-point source pollution research and treatment. However, since there is no fixed outlet for non-point source pollution, monitoring has always been a time-consuming and laborious task. [0003] For the pollution monitoring of water systems such as rivers, open channels, lakes and pipelines, real-time monitoring or automatic monitoring can be realized at home and abroad. Water quality sensors, etc., can continuously monitor water quantity and water quality. [0004] The runoff on the road surface of the expressway is generally collect...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to aim at the real-time continuous monitoring and automatic monitoring technology deficiency of road surface rainfall runoff pollution, provide a kind of method that is used for expressway road surface runoff outlet continuous monitoring record runoff and can sample regularly, can obtain by the method of the present invention Corresponding flow data and water quality data are used to study the generation, migration, collection process of road surface runoff pollution and the law of sewage discharge, etc.

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