CN-115680033-B - Method, system and storage medium for limiting ion diffusion in soil

CN115680033BCN 115680033 BCN115680033 BCN 115680033BCN-115680033-B

Abstract

The application discloses a method, a system and a storage medium for limiting ion diffusion in soil, which relate to the technical field of soil treatment, and the method comprises the following steps of obtaining soil information of soil in a target soil area; the method comprises the steps of detecting a diffusion center and a diffusion range of pollution ions in a target soil area based on soil information, defining a closed-loop isolation zone in the target soil area by combining the diffusion center, the diffusion range and the soil information, arranging a plurality of electrode devices on two sides of the closed-loop isolation zone, forming an electrolytic electric field in soil in the closed-loop isolation zone when the electrode devices are started, and starting all the electrode devices to limit the pollution ions in the soil where the closed-loop isolation zone is located to diffuse outside the closed-loop isolation zone. The application has the effects of limiting the diffusion of soil pollutants and reducing the construction quantity and the construction cost.

Inventors

CHEN HAO
LIANG HAIPENG
GAO PING
JIN XIN

Assignees

长沙稷下咨询有限公司

Dates

Publication Date: 20260508
Application Date: 20221008

Claims (8)

1. A method of limiting ion diffusion in soil comprising the steps of: Acquiring soil information of soil in a target soil area; Detecting a diffusion center and a diffusion range of the contaminant ions in the target soil region based on the soil information; defining a closed-loop isolation zone in the target soil area by combining the diffusion center, the diffusion range and the soil information; arranging a plurality of electrode devices on two sides of the closed-loop isolation belt, and forming an electrolytic electric field in soil in the closed-loop isolation belt when the electrode devices are started; starting all the electrode devices to limit the out-of-band diffusion of the pollution ions in the soil where the closed-loop isolation belt is located to the closed-loop isolation belt; wherein the defining a closed loop barrier in the target soil region in combination with the diffusion center, the diffusion range, and the soil information comprises the steps of: Defining a plurality of limiting areas in the target soil area based on the soil information; Defining an initial isolation zone in the target soil region in combination with the diffusion center and the diffusion range; Judging whether an overlapping area exists between the initial isolation belt and the limiting area; If the initial isolation belt and the limiting area do not have the overlapping area, the initial isolation belt is used as a closed-loop isolation belt; if the initial isolation belt and the limiting area have the overlapping area, calculating the area of the overlapping area; Adjusting the initial isolation belt by combining the area and a target limiting area where the overlapped area is positioned to obtain the closed-loop isolation belt; Wherein, the adjusting the initial isolation belt by combining the region and the target limiting region where the overlapping region is located, to obtain the closed-loop isolation belt comprises the following steps: Judging whether the area of the region exceeds a preset area threshold value or not; If the area of the area does not exceed the area threshold, not adjusting the initial isolation belt, and taking the initial isolation belt as the closed-loop isolation belt; if the area of the region exceeds the area threshold, intercepting an out-of-limit region outside the initial isolation zone in a target limit region where the overlapped region is located; identifying a region boundary of the out-of-bounds limiting region; smoothing the region boundary to obtain a smooth region boundary; drawing an out-of-bounds isolation band based on the smooth region boundary; Replacing the isolation belt positioned in the overlapped area in the initial isolation belt with the out-of-limit isolation belt; And connecting the outside-boundary isolation belt with the rest of the initial isolation belt to obtain the closed-loop isolation belt.
2. A method of limiting ion diffusion in soil according to claim 1, wherein said electrode means comprises a power supply module, a first electrode means and a second electrode means, said disposing a plurality of electrode means on either side of said closed loop barrier strip comprising the steps of: Disposing a plurality of the first electrode devices in soil at one side of the closed-loop separator; Arranging a plurality of second electrode devices in soil at the other side of the closed-loop isolation belt, wherein the first electrode devices and the second electrode devices are the same in number and opposite in electrode; and supplying power to all the first electrode devices and all the second electrode devices through the power supply module.
3. A method of limiting ion diffusion in soil according to claim 2 wherein the power supply voltage of said power supply module is less than 1.25V.
4. A method of limiting ion diffusion in soil according to claim 1, wherein said detecting the center and extent of diffusion of contaminating ions in said target soil area based on said soil information comprises the steps of: Selecting a plurality of control soil areas for controlling the target soil areas based on the soil information; Respectively acquiring first soil data of soil in all the control soil areas; screening out target control soil areas from all the control soil areas according to the first soil data; Acquiring second soil data of soil in a target soil area; Analyzing the pollution condition of the polluted ions in the target soil area in combination with the first soil data and the second soil data of the target control soil area, and determining the diffusion center and the diffusion range of the polluted ions in the target soil area.
5. The method of limiting ion diffusion in soil according to claim 4, wherein said first soil data comprises a first conductivity value and a first in-phase value, said screening out target control soil areas from all said control soil areas based on said first soil data comprising the steps of: judging whether the variation coefficient of the first conductivity value is lower than a preset first coefficient threshold value or not; If the variation coefficient of the first conductivity value is lower than the first coefficient threshold value, judging whether the variation coefficient of the first in-phase value corresponding to the control soil area is lower than a preset second coefficient threshold value or not; If the variation coefficient of the first in-phase value is lower than the second coefficient threshold value, marking the corresponding control soil area as a preselected soil area; Judging that the number of the preselected soil areas is greater than 1 or equal to 1; if the number of the preselected soil areas is equal to 1, taking the preselected soil areas as target control soil areas; If the number of the preselected soil areas is greater than 1, respectively calculating comprehensive variation coefficients of all the preselected soil areas based on the first soil data; Selecting the minimum value in all the comprehensive variation coefficients as a target variation coefficient; and taking the preselected soil area corresponding to the target variation coefficient as the target control soil area.
6. The method of limiting ion diffusion in soil according to claim 5, wherein said second soil data comprises a second conductivity value and a second in-phase value, said analyzing pollution of contaminating ions in said target soil region in combination with said first soil data and said second soil data of said target soil region, and determining a center and a range of diffusion of said contaminating ions in said target soil region comprises the steps of: Calculating a conductivity average of the first conductivity value and an in-phase average of the first in-phase value; Calculating a target conductivity value of the target soil area by combining the conductivity average value and the second conductivity value; Combining the same phase average value and the second same phase value to calculate a target same phase value of the target soil area; Drawing a conductivity-in-phase value distribution map of the target soil area based on the target conductivity value and the target in-phase value; and determining the diffusion center and the diffusion range of the polluted ions in the target soil area according to the conductivity-phase value distribution diagram.
7. A system for limiting ion diffusion in soil comprising a memory, a processor and a program stored on the memory and executable on the processor, the program being capable of carrying out a method of limiting ion diffusion in soil as claimed in any one of claims 1 to 6 when loaded and executed by the processor.
8. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program which, when executed by a processor, causes the processor to implement a method of limiting ion diffusion in soil according to any one of claims 1 to 6.

Description

Method, system and storage medium for limiting ion diffusion in soil Technical Field The application relates to the technical field of soil treatment, in particular to a method, a system and a storage medium for limiting ion diffusion in soil. Background As the population increases sharply, industry develops rapidly, solid waste is continuously piled up and poured onto the soil surface, harmful waste water is continuously permeated into the soil, harmful gas and fly ash in the atmosphere are continuously fallen into the soil along with rainwater, when the soil contains too much harmful substances, the composition, structure and function of the soil are changed due to the fact that the self-cleaning capacity of the soil is exceeded, microbial activity is inhibited, and the harmful substances or decomposition products thereof are gradually accumulated in the soil to cause soil pollution. The soil quality of the polluted soil is continuously reduced, the yield and quality of crops planted in the polluted soil are also reduced, more seriously, the soil has an enrichment effect on pollutants, and some pollutants with high toxicity, such as mercury, cadmium and the like, are enriched in crop fruits and are easy to poison after people or livestock eat the crops. However, the soil pollution is treated for a long time, so that some means are needed to control the diffusion of pollutants in the soil. In the related technology, the site situation of the polluted soil can be firstly examined, then an annular waterproof curtain is constructed by combining the site situation and the range of the polluted soil, and the polluted soil is surrounded by the waterproof curtain, so that the physical blocking of pollutants in the polluted soil is carried out, and the continuous diffusion of the pollutants and the pollution of more soil are prevented. Aiming at the related technology, the inventor considers that the defects that the waterproof curtain needs to be planned in the construction process, then a foundation pit is excavated according to the boundary, and finally the waterproof curtain is poured by cement, so that the whole construction process has larger engineering quantity and higher construction cost. Disclosure of Invention In order to overcome the defects of large engineering quantity and high cost for limiting the diffusion of soil pollutants, the application provides a method, a system and a storage medium for limiting the diffusion of ions in soil. In a first aspect, the present application provides a method of limiting ion diffusion in soil comprising the steps of: Acquiring soil information of soil in a target soil area; Detecting a diffusion center and a diffusion range of the contaminant ions in the target soil region based on the soil information; defining a closed-loop isolation zone in the target soil area by combining the diffusion center, the diffusion range and the soil information; arranging a plurality of electrode devices on two sides of the closed-loop isolation belt, and forming an electrolytic electric field in soil in the closed-loop isolation belt when the electrode devices are started; all of the electrode means are activated to limit out-of-band diffusion of the contaminating ions from the soil in which the closed-loop isolation zone is located. By adopting the technical scheme, the soil information in the target soil area can be acquired firstly, then the diffusion center and the diffusion range of the polluted ions are monitored based on the soil information, the closed-loop isolation belt can be defined in the target soil area according to all acquired data information, then the electrode devices can be arranged on two sides of the closed-loop isolation belt, all the electrode devices are started to form an electrolytic electric field in the soil, and under the driving of electric power, the polluted ions in the soil surrounded by the closed-loop isolation belt can be limited to move when moving into the electrolytic electric field, so that the polluted ions can be prevented from diffusing into the soil outside the closed-loop isolation belt. The mode of arranging the electrode device to form an electrolytic electric field is adopted to limit the diffusion of polluted ions, and compared with physical isolation means such as waterproof curtains, the time for arranging the electrode device is shorter, and the overall cost is lower. Optionally, the defining a closed loop isolation zone in the target soil area by combining the diffusion center, the diffusion range and the soil information includes the steps of: Defining a plurality of limiting areas in the target soil area based on the soil information; Defining an initial isolation zone in the target soil region in combination with the diffusion center and the diffusion range; Judging whether an overlapping area exists between the initial isolation belt and the limiting area; If the initial isolation belt and the limiting area do not have the