Simulated test device for seepage of underground water and simulated test method

Abstract

The invention discloses a simulated test device for seepage of underground water and a simulated test method; the test device comprises a cylindrical drum, a substrate water tank, a water supply tank and a control valve, wherein the substrate water tank is arranged at the bottom of the cylindrical drum and is communicated with the water supply tank through the control valve and the water supply pipe; the water supply tank is a lifting adjustable water tank; the substrate water tank is arranged on a support; a drainage valve is arranged at the bottom of the substrate water tank; and the test method comprises steps of sampling point selection, sample soil collection, sample soil pretreatment, cylindrical drum filling, soaking test on underground water, collection of polluted water sample, water sample analysis and calculation of polluted output quantity. The simulated test device of the invention is convenient for collecting water sample in a layering way, provides basic data such as water quality, water yield and the like for the research of underground water pollution law and achieves the purpose of simulating the state and law of the underground water pollution. The test method is simple and convenient; equipment is convenient to operate; and test cost is low. The invention is suitable for test environments that the temperature is 4-45 DEG C, and the constant pressure pH is 6.5-8.5.

Description

technical field [0001] The invention belongs to the technical field of environmental protection monitoring, and in particular relates to a groundwater seepage simulation test device and a simulation test method capable of accurately simulating the pollution of shallow groundwater by soil in the lakeside area of ​​an inland lake. Background technique [0002] Pollution and eutrophication of inland lakes is an important problem currently facing our country. The investment required to control the pollution and eutrophication of inland lakes is huge. Accurately judging the sources of various pollution and the law of entering the lake is the key to accurately formulating control countermeasures and reducing investment. waste, the basic guarantee for improving governance performance. [0003] Rainfall in inland areas generally varies seasonally, and lake levels vary accordingly. The shallow groundwater in the lakeside area is restricted by the lake water body. The lake water leve...

AI Technical Summary

Problems solved by technology

Although the observation well method can directly reflect the pollution status of the observation point, it can only obtain water quality data, that is, the degree of groundwater pollution in the lakeside area. The data on the amount of polluted water transported still needs to be calculated by the model. The total amount of pollution measured by this method (Water quality multiplied by water quantity) The reliability of the result cannot be directly verified

At the same time, the application of this method needs to set up multiple observation points, resulting in large investment and high round-trip costs for on-site sample collection.

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