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Soil heavy metal leaching experiment system

An experimental system, heavy metal technology, applied in the field of leaching experimental system, can solve problems such as lack of research

Pending Publication Date: 2018-10-02
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Claims
  • Application Information

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Problems solved by technology

As a routine experimental method, indoor soil column leaching simulation experiment has been relatively mature after years of technical research and development, but there is still a lack of research on soil leaching through a leaching system to determine the impact of different heavy metal pollutants on soil strength.

Method used

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  • Soil heavy metal leaching experiment system
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Experimental program
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Embodiment Construction

[0018] Can clearly illustrate the technical characteristics of this program, and through a specific implementation mode, and in conjunction with the accompanying drawings, this case will be described.

[0019] As shown in the figure, a soil heavy metal leaching experiment system of the present invention includes a water supply system for providing heavy metal leachate, a leaching system for performing leaching experiments on experimental soil, and a receiving system for collecting leachate.

[0020] In this example, the water supply system consists of a leachate liquid storage bottle (1), a liquid supply pipe (2), a peristaltic pump (3), an on-off valve (4), and a rubber stopper (5). One end of the liquid supply pipe (2-2) is connected to the bottom of the liquid storage bottle (1), and the other end is connected to the bottom of the leaching column (6). The peristaltic pump (3) and switch valve (4-1) are arranged on the liquid supply pipe (2-2) to control the leaching time, s...

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Abstract

A soil heavy metal leaching experiment system is characterized by consisting of three parts including a water supply system, a leaching system and a receiving system, wherein the water supply system consists of a leaching liquid storage bottle, a liquid feeding pipe, a peristaltic pump and a rubber plug. The leaching system comprises a leaching column; an upper filter material layer, an upper porous partition board, a lower porous partition board, a lower filter material layer and a hydraulic jack are sequentially arranged in the leaching column from top to bottom; the upper filter material layer consists of quartz sand, filter cloth and filter paper from top to bottom; a sample accommodating cavity is formed between the upper porous partition board and the lower porous partition board; the lower filter material layer consists of filter paper, filter cloth and quartz sand from top to bottom. The receiving system comprises a water collecting bottle arranged at the lower part of the leaching system. The system overcomes defects of existing static leaching experiments and dynamic column tests and can freely control the leaching time and intensity of water and water volume, simulate contaminated soil and study effects of different heavy metal pollutants on soil strength.

Description

technical field [0001] The invention relates to the field of soil experiment systems, in particular to a leaching experiment system capable of simulating soil heavy metal pollution. Background technique [0002] Soil heavy metal pollution is one of the major environmental hazards in the world, and it may enter the human food chain through crops and endanger human health and life through the food chain. In order to protect the ecological environment and sustainable economic development, more and more attention has been paid to the prevention and control of soil and water pollution and the recycling of polluted water sources. [0003] There is an increasing demand for simulation experiments on pollutant migration, leaching, and transformation and utilization. As a routine experimental method, indoor soil column leaching simulation experiment has been relatively mature after years of technical research and development, but there is still a lack of research on soil leaching thr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 陈学军余思喆李佳明陈议城周兴黄翔
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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