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Simulation device for widely simulating vertical migration of pollutants in water containing layer

A technology for simulating devices and pollutants, which is used in the field of experimental devices to study the penetration ability of pollutants, and can solve the problem that the test results are not too accurate.

Inactive Publication Date: 2015-04-01
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The test column usually uses a column with a diameter of 1-10cm for small-scale research. There are too many factors affecting the test results, and the test results are bound to be inaccurate.

Method used

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  • Simulation device for widely simulating vertical migration of pollutants in water containing layer
  • Simulation device for widely simulating vertical migration of pollutants in water containing layer
  • Simulation device for widely simulating vertical migration of pollutants in water containing layer

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Embodiment

[0016] A large-scale simulation device for simulating the vertical migration of pollutants in an aquifer, including an aquifer simulation device, a rainfall device, a water level adjustment device, a vacuum pump and a pressure gauge, the aquifer simulation device is a box with a top cover 1 and Fixed on the base 2, the upper part of the box body 1 is a rectangular body, the upper part of the rectangular body is the aquifer, the lower part is the seepage layer, the bottom of the box body 1 is a cone, and the cone is a negative pressure layer, between the seepage layer and the negative pressure layer There is a porous plexiglass partition 3 covered with 300-mesh gauze. The seepage layer is filled with soil or sandstone for the test according to the order of the field stratum and embedded with layered permeable ceramics or spherical permeable ceramics for the test. The box seeps There are 81 sampling holes 4 arranged on the side wall of the layer and fixed by 81 straight-through c...

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Abstract

The invention relates to a simulation device for widely simulating vertical migration of pollutants in a water containing layer. The simulation device comprises a water containing layer simulation device, a rainfall device, a water level adjusting device, a vacuum pump and a pressure gauge, wherein a soil sample is filled according to a given zooming ratio and the real situation of the field stratum, a pollutant feeding device, a soil sample filling device, a pressure detection device and a water sample detection device are arranged and are used for monitoring parameters such as a pressure field, a hydrochemical field, and a seepage field, and a vertical migration rule of the pollutants in the underground water water-containing layer can be observed by virtue of the parameters. The simulation device has advantages of being capable of filling a seepage layer after being zoomed according to a given ratio and the situation of the field rock stratum, the hydraulic pressure on the upper end and the lower end of the seepage layer can be adjusted by virtue of a negative pressure layer, the influence of the rainfall process and microbial bacteria in the seepage layer medium on the migration of the pollutants in the vertical direction of the water containing layer can be simulated, and the migration rule of the pollutants in the stratum medium in the actual field situation can be effectively disclosed from the perspective of indoor tests.

Description

technical field [0001] The invention relates to an experimental device for studying the penetrating ability of pollutants, in particular to a large-scale simulation device for simulating the vertical migration of pollutants in an aquifer. Background technique [0002] With the vigorous development of the economy, the problem of environmental pollution is becoming more and more serious. A large amount of environmental pollutants enter the groundwater environment. Pollutants do not directly enter the groundwater, but migrate vertically through porous media such as soil. The stronger the penetration ability, the deeper the aquifer can enter, resulting in more serious pollution. It is well known that soil in nature can reduce or eliminate pollutants in soil through its own physical, chemical and biological functions. The soil reduces the concentration of soil pollution and disappears through its own adsorption, decomposition, migration, and transformation. However, this proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N13/00
Inventor 李尧鲁涛涛陈威杜婷婷王昕喆王巍郭浩男熊心雨高瑞吾力夏提
Owner NANKAI UNIV
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