CN219520002U - High-efficiency soil and groundwater risk management and control system - Google Patents

Abstract

The utility model discloses a high-efficiency soil and groundwater risk management and control system, which comprises a risk management and control area, wherein a horizontal covering layer is arranged on the risk management and control area, a plurality of filter layers are arranged on the horizontal covering layer, a water-resisting layer is arranged at the bottom of the risk management and control area, vertical barrier layers are arranged around the risk management and control area, the horizontal covering layer and the plurality of filter layers, PRB (physical resource block) are arranged at the downstream of the water flow of the risk management and control area, a plurality of water quality monitoring wells are arranged at two sides of the PRB, a combustion chamber is arranged at one side of the vertical barrier layers, an air inlet of an air blower is fixedly connected to one side of the combustion chamber, and a connecting pipe I is fixedly connected to the air outlet of the air blower. According to the utility model, through the cooperation of all the components, the risk management and control area can be effectively isolated, and then the risk management and control area is continuously heated, so that harmful substances in soil are volatilized, the volatilized harmful substances are absorbed by the filter layer at the top, the pollutants in the soil are greatly reduced, and the leaked pollutants can be treated and purified by a subsequent system, so that the pollution expansion is avoided.

Description

High-efficiency soil and groundwater risk management and control system

Technical Field

The utility model relates to the technical field of pollution land block risk management and control, in particular to a high-efficiency soil and groundwater risk management and control system.

Background

Along with the acceleration of economic development and urban treatment, enterprises such as chemical plants, pharmaceutical plants and the like can leave a large amount of organic pollutants at the plant area to form a polluted site, and the organic pollutants in the polluted site can continuously diffuse in soil and underground water and release harmful gases, thereby greatly threatening the ecological environment and human health.

The existing high-efficiency soil and groundwater risk management and control system is mainly used for isolating and sealing a polluted site, however, a lot of pollutants exist in the polluted site, the pollutants in the soil cannot be reduced by isolating and sealing the polluted site, and the risks of leakage of the pollutants are also reduced, so that the soil and groundwater risk management and control system for reducing the soil pollutants is required at present, and therefore, the high-efficiency soil and groundwater risk management and control system is proposed.

Disclosure of Invention

The utility model aims to provide a high-efficiency soil and groundwater risk management and control system so as to solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: high-efficient soil and groundwater risk management and control system, including risk management and control region, be equipped with the horizontal overburden on the risk management and control region, be equipped with a plurality of filter layers on the horizontal overburden, risk management and control region bottom is equipped with the water barrier, risk management and control region, horizontal overburden and a plurality of filter layers are equipped with perpendicular barrier around, risk management and control region rivers downstream department is equipped with PRB, the PRB both sides are equipped with a plurality of quality of water monitor wells, perpendicular barrier one side is equipped with the combustion chamber, combustion chamber one side fixed connection forced draught blower air intake, forced draught blower air outlet department fixed connection connecting pipe one, a fixed connection heating pipe one end of connecting pipe, heating pipe other end fixed connection connecting pipe two, two top fixed connection exhaust gas treatment ware of connecting pipe.

Preferably, the horizontal covering layer comprises a nutrient soil layer, a covering support soil layer and a drainage layer, the top surface of the risk management and control area is provided with the drainage layer, the top surface of the drainage layer is provided with the covering support soil layer, and the top surface of the covering support soil layer is provided with the nutrient soil layer.

Preferably, the filter layer comprises an adsorption layer and an active carbon layer, the active carbon layer is arranged on the top surface of the nutrient soil layer, and the adsorption layer is arranged on the top surface of the active carbon layer.

Preferably, the PRB comprises a concrete permeable wall, a first filler and a partition wall, a concrete impermeable wall is arranged on one side of the concrete permeable wall, two partition walls are arranged between the concrete permeable wall and the concrete impermeable wall, and the first filler, the second filler and the third filler are sequentially filled between the concrete permeable wall and the concrete impermeable wall from left to right.

Preferably, the heating pipe is located inside the risk management area, and the exhaust gas treatment device is located at one side of the vertical barrier layer.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, through the cooperation of all the components, the risk management and control area can be effectively isolated, and then the risk management and control area is continuously heated, so that harmful substances in soil are volatilized, the volatilized harmful substances are absorbed by the filter layer at the top, the pollutants in the soil are greatly reduced, and the leaked pollutants can be treated and purified by a subsequent system, so that the pollution expansion is avoided.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is a schematic cross-sectional view of a horizontal overlay layer according to the present utility model;

FIG. 4 is a schematic cross-sectional view of a filter layer of the present utility model;

fig. 5 is a schematic cross-sectional view of a PRB of the present utility model.

In the figure: 1. a risk management area; 2. a horizontal cover layer; 21. a nutrient soil layer; 22. covering a supporting soil layer; 23. a drainage layer; 3. a filter layer; 31. an adsorption layer; 32. an activated carbon layer; 4. a vertical barrier layer; 5. a combustion chamber; 6. a blower; 7. a first connecting pipe; 8. heating pipes; 9. a second connecting pipe; 10. an exhaust gas treatment device; 11. PRB; 111. a concrete water permeable wall; 112. a first filler; 113. a dividing wall; 114. a second filler; 115. a third filler; 116. a concrete impermeable wall; 12. a water-resistant layer; 13. and (5) water quality monitoring well.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-2, a first embodiment of the present utility model provides a high-efficiency soil and groundwater risk management and control system, which comprises a risk management and control area 1, wherein a horizontal cover layer 2 is arranged on the risk management and control area 1, a plurality of filter layers 3 are arranged on the horizontal cover layer 2, a water-resisting layer 12 is arranged at the bottom of the risk management and control area 1, a vertical barrier layer 4 is arranged around the risk management and control area 1, the horizontal cover layer 2 and the plurality of filter layers 3, a PRB11 is arranged at the downstream of the water flow of the risk management and control area 1, a plurality of water quality monitoring wells 13 are arranged at two sides of the PRB11, a combustion chamber 5 is arranged at one side of the vertical barrier layer 4, a blower 6 air inlet is fixedly connected at one side of the combustion chamber 5, a connecting pipe 7 is fixedly connected at an air outlet of the blower 6, one end of the connecting pipe 7 is fixedly connected with one end of a heating pipe 8, the other end of the heating pipe 8 is fixedly connected with a connecting pipe two 9, the top end of the connecting pipe two 9 is fixedly connected with an exhaust gas processor 10, the vertical barrier layer 4 is fixedly arranged on the inner side of the bottom water-resisting layer 12, the vertical barrier layer 4 is a triaxial cement bentonite stirring pile, the vertical barrier layer 4 can be suitable for treating various soil properties, the vertical barrier layer 4 can help to block leakage of pollutants, the combustion chamber 5 is opened, the combustion chamber 5 heats air, the heated air is sent to the first connecting pipe 7 through the air feeder 6, flows into the second connecting pipe 9 from the first connecting pipe 7, the second connecting pipe 8 heats the risk control area 1, the air flows into the second connecting pipe 9 after passing through the second connecting pipe 8, then the second connecting pipe 9 is sent into the waste gas processor 10 for treatment, the heated air continuously transmits heat into the risk control area 1, the pollutants in soil rise upwards through heating volatilization, the harmful substances are adsorbed by the filtering layer 3 after passing through the filtering layer 3, the filtering layer 3 is a blocky replaceable filtering device, when the pollutants overflow under extreme conditions, the pollutants can flow downwards, when the pollution sources flow downwards, the PRB11 can filter the overflow pollutants, a user can continuously extract groundwater from the water quality monitoring well 13, the groundwater quality is monitored in real time, and the water quality monitoring well 13 outside the risk management and control area 1 can detect the water quality condition of external groundwater sources.

Example 2

Referring to fig. 2 and 3, the horizontal covering layer 2 comprises a nutrient soil layer 21, a covering support soil layer 22 and a drainage layer 23, the top surface of the risk management and control area 1 is provided with the drainage layer 23, the top surface of the drainage layer 23 is provided with the covering support soil layer 22, the top surface of the covering support soil layer 22 is provided with the nutrient soil layer 21, the drainage layer 23 is made of a composite geotechnical drainage net, and the nutrient soil layer 21 is paved on the risk management and control area 1, so that secondary pollution of a polluted area is reduced, and the greening area of a polluted land is increased.

Referring to fig. 2 and 4, the filter layer 3 includes an adsorption layer 31 and an activated carbon layer 32, the top surface of the nutrient soil layer 21 is provided with the activated carbon layer 32, the top surface of the activated carbon layer 32 is provided with the adsorption layer 31, the activated carbon layer 32 can help to absorb volatile pollutants, and the adsorption layer 31 helps to further absorb the pollutants.

Referring to fig. 5, the PRB11 includes a concrete permeable wall 111, a first filler 112 and a partition wall 113, a concrete impermeable wall 116 is disposed on one side of the concrete permeable wall 111, two partition walls 113 are disposed between the concrete permeable wall 111 and the concrete impermeable wall 116, the first filler 112, the second filler 114 and the third filler 115 are sequentially filled between the concrete permeable wall 111 and the concrete impermeable wall 116 from left to right, and overflowed polluted water flows into the inner side of the PRB11 through the concrete permeable wall 111, then flows through the first filler 112, the second filler 114 and the third filler 115 one by one and is filtered by the first filler, the second filler 114 and the third filler 115, so that overflowed pollutants are effectively prevented.

Referring to fig. 2, a heating pipe 8 is located inside the risk management area 1, and an exhaust gas processor 10 is located at one side of the vertical barrier layer 4, and the heating pipe 8 helps to heat the risk management area 1 and helps to volatilize pollutants in the risk management area 1.

Example 3

Referring to fig. 1-5, in the third embodiment of the present utility model, when the risk management and control area 1 is protected based on the above two embodiments, firstly, the periphery of the risk management and control area 1 is excavated, a water-resisting layer 12 is arranged at the bottom, then a vertical barrier layer 4 is buried above the bottom water-resisting layer 12, after completion, a plurality of water quality monitoring wells 13 are arranged at the inner side of the risk management and control area 1, a user can continuously extract groundwater from the water quality monitoring wells 13, monitor the groundwater quality in real time, finally, a horizontal cover layer 2 is covered at the upper part of the risk management and control area 1, a water draining layer 23 material in the horizontal cover layer 2 is a composite geotechnical draining net, a nutrient soil layer 21 is paved on the risk management and control area 1, thereby reducing secondary pollution of a polluted area, increasing greening area of a polluted land block, opening a combustion chamber 5, and heating air by the combustion chamber 5, the heated air is sent to the first connecting pipe 7 through the air feeder 6, when flowing into the heating pipe 8 from the first connecting pipe 7, the heating pipe 8 heats the risk management and control area 1, the air flows to the second connecting pipe 9 after passing through the heating pipe 8, then the air is sent to the exhaust gas treatment device 10 for treatment through the second connecting pipe 9, the heated air continuously transmits heat to the risk management and control area 1, pollutants in soil are heated, volatilized and lifted upwards, the pollutants are adsorbed by the filtering layer 3 after passing through the filtering layer 3, the filtering layer 3 is a blocky replaceable filtering device, when the pollutants overflow, the pollutants flow downwards, when the pollution source flows into the downstream, the PRB11 filters the overflow pollutants, the overflowed polluted water flows into the inner side of the PRB11 through the concrete permeable wall 111, then the water flows sequentially pass through the first filler 112, the second filler 114 and the third filler 115 and are filtered, according to the utility model, through the cooperation of all the components, the risk management and control area 1 can be effectively isolated, the risk management and control area 1 is continuously heated, harmful substances in soil are volatilized, the volatilized harmful substances are absorbed by the filter layer 3 at the top, the pollutants in the soil are greatly reduced, the leaked pollutants can be treated and purified by a subsequent system, and the pollution expansion is avoided.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. High-efficient soil and groundwater risk management and control system, including risk management and control area (1), its characterized in that: the risk management and control area (1) is provided with a horizontal covering layer (2), the horizontal covering layer (2) is provided with a plurality of filter layers (3), the bottom of the risk management and control area (1) is provided with a water-resisting layer (12), the periphery of the risk management and control area (1), the horizontal covering layer (2) and the plurality of filter layers (3) is provided with a vertical barrier layer (4), the downstream of the water flow of the risk management and control area (1) is provided with a PRB (11), and two sides of the PRB (11) are provided with a plurality of water quality monitoring wells (13);

the vertical separation layer (4) one side is equipped with combustion chamber (5), combustion chamber (5) one side fixed connection forced draught blower (6) air intake, forced draught blower (6) air outlet department fixed connection connecting pipe one (7), connecting pipe one (7) fixed connection heating pipe (8) one end, heating pipe (8) other end fixed connection connecting pipe two (9), connecting pipe two (9) top fixed connection exhaust-gas treatment ware (10).

2. The efficient soil and groundwater risk management and control system according to claim 1, wherein: the horizontal covering layer (2) comprises a nutrient soil layer (21), a covering support soil layer (22) and a drainage layer (23), the drainage layer (23) is arranged on the top surface of the risk management and control area (1), the covering support soil layer (22) is arranged on the top surface of the drainage layer (23), and the nutrient soil layer (21) is arranged on the top surface of the covering support soil layer (22).

3. The efficient soil and groundwater risk management and control system according to claim 2, wherein: the filter layer (3) comprises an adsorption layer (31) and an active carbon layer (32), the active carbon layer (32) is arranged on the top surface of the nutrient soil layer (21), and the adsorption layer (31) is arranged on the top surface of the active carbon layer (32).

4. The efficient soil and groundwater risk management and control system according to claim 1, wherein: the PRB (11) comprises a concrete permeable wall (111), a first filler (112) and a separation wall (113), wherein a concrete impermeable wall (116) is arranged on one side of the concrete permeable wall (111), two separation walls (113) are arranged between the concrete permeable wall (111) and the concrete impermeable wall (116), and a first filler (112), a second filler (114) and a third filler (115) are sequentially filled between the concrete permeable wall (111) and the concrete impermeable wall (116) from left to right.

5. The efficient soil and groundwater risk management and control system according to claim 1, wherein: the heating pipe (8) is positioned in the risk management area (1), and the exhaust gas processor (10) is positioned on one side of the vertical barrier layer (4).