In-situ test device and test method for simulating hyporheic exchange of wild high concentration pollutants

A technology of in-situ test and test method, applied in the direction of material resistance, etc., to achieve the effect of improving test efficiency and small environmental impact

Inactive Publication Date: 2018-12-11
HOHAI UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] Purpose of the invention: The purpose of this invention is to provide a kind of in-situ test device and test method for simulating the undercurrent exchange of high-concentrat

Method used

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  • In-situ test device and test method for simulating hyporheic exchange of wild high concentration pollutants
  • In-situ test device and test method for simulating hyporheic exchange of wild high concentration pollutants
  • In-situ test device and test method for simulating hyporheic exchange of wild high concentration pollutants

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Embodiment Construction

[0026] Such as figure 1 As shown, the test device of the present invention is composed of a rounded rectangular metal water tank 1 , a liquid circulation drive system 2 , a rectifier 3 , a conductivity meter 4 , and a temperature probe 5 . Among them, the size of the metal water tank 1 is determined according to the power of the centrifugal pump 2-1, the length of the tank body is 3-10 meters, and the width is 0.5m; Meter 2-3, water tank 2-4 and connecting pipe 2-5 are used to form a circulating water flow in the closed water tank, and the water tank 2-4 is used to hold the test liquid; the rectification device 3 is located at the front end of the tank, and is rectified by a plastic grid material. Grid 3-1 and impermeable rectifying bottom plate 3-2, because the flow state changes at both ends of the tank during the test, which will affect the migration of pollutants, rectifying grid 3-1 and rectifying bottom plate 3-2 in the test The influence of turbulent water flow can be ...

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Abstract

The invention discloses an in-situ test device and a test method for simulating hyporheic exchange of wild high concentration pollutants and belongs to the field of simulating river hyporheic exchange. The device comprises an annular water channel inserted into riverbed bottom mud, a circular driving system, a flow leveling device and a conductivity meter and a temperature probe, wherein the waterchannel is free of a cover plate and a bottom plate, and a porous plate for leveling a water flow; the circular driving system comprises a water pump and a water tank for holding a test liquid, and the test liquid is conveyed from one end of the water channel to the water tank at the other end through the water pump; the flow leveling device comprises a flow leveling grid located below the watertank and a flow leveling bottom plate located below the flow leveling grid. Compared with the prior art, the device avoids interference of human factors to test result in an indoor test, so as to provide a ground for researching the shifting law of sudden high concentration pollutants in wild rivers and lakes, and the device is precise in test result, simple to operate, easy to assemble and high in adaptability.

Description

technical field [0001] The invention relates to the field of simulating the subsurface exchange of rivers and lakes, in particular to an in-situ test device and a test method for simulating the undercurrent exchange of high-concentration pollutants in the field. Background technique [0002] With the rapid development of the economy, industrialization has brought about more and more pollution of aquatic environments such as rivers and lakes. Especially when problems such as concentrated discharge and leakage of pollutants occur in industrial areas, the environment of rivers and lakes will be difficult. After self-purification is completed, high-concentration pollutants in the overlying water of rivers and lakes will migrate to the subsurface zone, which will seriously affect the biodiversity of the subsurface zone. Due to the limited complexity of field test conditions, and the magnitude of the problem, in situ testing of subsurface exchange is urgently needed. [0003] At ...

Claims

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Application Information

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IPC IPC(8): G01N27/06
CPCG01N27/06
Inventor 郑春阳陈孝兵袁越赵坚沈振中
Owner HOHAI UNIV
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