Underground water organic pollutant remediation system

Abstract

The utility model relates to a groundwater organic pollutant remediation system which comprises a grid caisson and an aeration assembly, a plurality of holes communicated with the outside and the inside are formed in the side wall of the grid caisson, the inside of the grid caisson is filled with filler, the aeration assembly comprises an aeration pipe and a fan, and the aeration pipe is communicated with the aeration assembly. The top end of the aeration pipe is connected with the fan, and the bottom end of the aeration pipe penetrates through the grid caisson to form an aeration end; the grid caisson is hung in a well and is stably arranged on the well wall, the grid caisson is filled with filler so that aerobic bacteria can breed, the aeration assembly can continuously supply oxygen to underground water and help the aerobic bacteria breathe, the aerobic bacteria decompose organic matter into water and carbon dioxide, and therefore the function of treating the organic matter in the underground water is achieved. Underground water does not need to be pumped to the ground, underground operation is directly carried out, the structure is simple, and energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of groundwater restoration, in particular to a groundwater organic pollutant restoration system. Background Art

[0002] At present, the methods for groundwater pollution control and remediation mainly include physical methods, chemical methods and biological methods. The physical method is to extract groundwater and then treat it. It is a representative technology for groundwater remediation and is the most widely used. Chemical oxidation is often used for groundwater remediation contaminated by petroleum hydrocarbons and chlorinated hydrocarbons, but the cost is relatively high. Biological methods include microbial degradation and plant remediation. Inoculating efficient bacteria in the soil can significantly improve the degradation effect.

[0003] For example, the utility model patent with application number CN201821661783.8 proposes a soil and groundwater repair device, which includes an aeration tank, a water outlet is provided on one side of the aeration tank, an aeration pump is fixedly connected to the side of the aeration tank close to the water outlet, a water inlet is provided on the side of the aeration tank away from the water outlet, a lever plate is fixedly connected to the side of the aeration tank close to the water inlet, a pull rod is fixedly connected to the side of the lever plate close to the aeration tank, a slider is rotatably connected to the other end of the pull rod, a bracket is fixedly connected to the top of the aeration tank, a discharge hopper is rotatably connected to the middle of the bracket, a slide is provided on one side of the discharge hopper, the slide is slidably connected to the middle of the slide, and a storage box is fixedly connected to the top of the bracket.

[0004] However, groundwater needs to be pumped to the surface, purified and then returned to the well, which has a complex structure and high energy consumption. Utility Model Content

[0005] In view of this, it is necessary to provide a groundwater organic pollutant remediation system to solve the problem of needing to pump groundwater to the surface, purify it and then return it to the well, which has a complex structure and high energy consumption.

[0006] The utility model provides a groundwater organic pollutant remediation system, comprising a grid caisson and an aeration component, wherein the side wall of the grid caisson is formed with a plurality of holes communicating with the outside and the inside thereof, the inside of the grid caisson is filled with fillers, the aeration component comprises an aeration pipe and a fan, the top end of the aeration pipe is connected to the fan, the bottom end of the aeration pipe passes through the grid caisson and forms an aeration end, and further comprises a partition mesh group, the partition mesh group comprises two partition meshes which are parallel to each other and built into the grid caisson, a diversion channel is formed between the two partition meshes, a portion of the aeration pipe located in the diversion channel is connected to a diversion pipe, and the diversion pipe is arranged parallel to the partition mesh.

[0007] Furthermore, the grid caisson includes a grid frame, a top plate and a bottom plate, the top and bottom of the grid frame are fixedly connected to the top plate and the bottom plate respectively, the outer wall of the grid frame is formed with a plurality of holes, and the bottom end of the aeration pipe passes through the top plate and the bottom plate in sequence and is fixedly connected to the top plate and the bottom plate.

[0008] Furthermore, a lifting lug is fixedly connected to the top of the grid caisson.

[0009] Furthermore, the filler is pumice.

[0010] Furthermore, a plurality of aeration ports are formed at the bottom of the aeration tube.

[0011] Furthermore, aeration joints are installed on the plurality of aeration ports, the plurality of aeration joints are evenly arranged along the circumference of the aeration pipe, and the plurality of aeration joints are arranged obliquely downward away from the aeration pipe.

[0012] Furthermore, there are multiple aeration pipes, and the top ends of the multiple aeration pipes are connected to the fan via a transverse pipe and a hose in sequence, and both ends of the transverse pipe are closed.

[0013] Furthermore, it also includes a hose, and the top of the horizontal pipe is connected to the fan via the hose.

[0014] Furthermore, a plurality of the guide tubes in the guide channel are arranged in parallel.

[0015] Furthermore, there are multiple partition mesh groups, and the multiple partition mesh groups are arranged in sequence along the vertical direction.

[0016] Compared with the prior art, the grid caisson is suspended in the well and secured on the well wall, and fillers are filled in the grid box for the reproduction of aerobic bacteria, wherein the aeration assembly can continuously supply oxygen to the groundwater to help aerobic bacteria breathe, and the aerobic bacteria decompose organic matter into water and carbon dioxide to achieve the function of treating organic matter in the groundwater. There is no need to pump groundwater to the ground, and operations can be carried out directly underground. The structure is simple and energy-saving, and the invention also includes a partition mesh group, which includes two partition meshes that are parallel to each other and built into a grid frame, and a diversion channel is formed between the two partition meshes. The part of the aeration pipe located in the diversion channel is connected to a diversion pipe, and the diversion pipe is arranged parallel to the partition mesh to facilitate water flow through the filler to increase the decomposition rate of organic matter in the water. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The overall external schematic diagram of the groundwater organic pollutant remediation system provided by the embodiment of the utility model;

[0018] Figure 2This is an overall internal schematic diagram of the groundwater organic pollutant remediation system provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0020] like Figure 1-2 As shown, the utility model provides a groundwater organic pollutant remediation system, including a grid caisson 100 and an aeration assembly 200, the side wall of the grid caisson 100 is formed with a plurality of holes 111 connecting the outside and the inside, the grid caisson 100 is filled with fillers 112, the aeration assembly 200 includes an aeration pipe 210 and a fan 220, the top of the aeration pipe 210 is connected to the fan 220, the bottom end of the aeration pipe 210 passes through the grid caisson 100 and forms an aeration end, and also includes a partition group 140, the partition group 140 includes two partitions parallel to each other and built into the grid frame 110, a guide channel 141 is formed between the two partitions, and a portion of the aeration pipe 210 located in the guide channel 141 is connected to a guide pipe 212, and the guide pipe 212 is arranged parallel to the partition to facilitate water flow through the filler 112 to increase the decomposition rate of organic matter in the water.

[0021] During implementation, the grid caisson 100 is suspended in the well and secured to the well wall, and the filler 112 is filled in the grid box for the reproduction of aerobic bacteria, wherein the aeration assembly 200 can continuously supply oxygen to the groundwater to help aerobic bacteria breathe, and the aerobic bacteria decompose organic matter into water and carbon dioxide to achieve the function of treating organic matter in the groundwater. There is no need to pump groundwater to the ground, and operations can be carried out directly underground, with a simple structure and energy saving.

[0022] The grid caisson 100 in this embodiment is a structure that carries fillers 112 for biofilm growth. Aerobic bacteria can be formed in the fillers 112 to decompose organic matter in water.

[0023] In one embodiment, the grid caisson 100 includes a grid frame 110, a top plate 120 and a bottom plate 130. The top and bottom of the grid frame 110 are fixedly connected to the top plate 120 and the bottom plate 130 respectively. The outer wall of the grid frame 110 is formed with a plurality of holes 111. The bottom end of the aeration pipe 210 passes through the top plate 120 and the bottom arrangement in sequence and is fixedly connected to the top plate 120 and the bottom plate 130.

[0024] In order to facilitate the hanging of the grid caisson 100 , a lifting lug 121 is fixedly connected to the top of the grid caisson 100 .

[0025] In one embodiment, the filler 112 is pumice, which can apply a certain buoyancy to the grid caisson 100, reducing the burden on the connection between the grid caisson 100 and the well wall. Among them, air can be attached to the gaps between the pumice, which is conducive to the reproduction of aerobic bacteria. It is understandable that the filler 112 can also be implemented by crushed stone.

[0026] The aeration assembly 200 in this embodiment provides oxygen for aerobic bacteria, and includes an aeration pipe 210 and a fan 220. The top end of the aeration pipe 210 is connected to the fan 220, and the bottom end of the aeration pipe 210 passes through the grid caisson 100 to form an aeration end.

[0027] To increase the aeration area, in one embodiment, a plurality of aeration ports are formed at the bottom of the aeration pipe 210. Aeration joints 211 are installed on the aeration ports, and the aeration joints 211 are evenly arranged along the circumference of the aeration pipe 210, and the aeration joints 211 are arranged obliquely downward away from the aeration pipe 210.

[0028] In one embodiment, there are multiple aeration tubes 210 , and the top ends of the multiple aeration tubes 210 are connected to the fan 220 via the transverse tube 240 and the hose 230 in sequence, and both ends of the transverse tube 240 are closed.

[0029] In one embodiment, a plurality of guide tubes 212 are arranged in parallel in the guide channel 141 .

[0030] In one embodiment, there are multiple spacer net groups 140, and the multiple spacer net groups 140 are arranged in sequence along the vertical direction.

[0031] Compared with the prior art: the grid caisson 100 is suspended in the well and secured on the well wall, and the filler 112 is filled in the grid box for the reproduction of aerobic bacteria, wherein the aeration assembly 200 can continuously supply oxygen to the groundwater to help aerobic bacteria breathe, and the aerobic bacteria decompose organic matter into water and carbon dioxide to achieve the function of treating organic matter in the groundwater. There is no need to pump groundwater to the ground, and the operation can be carried out directly underground. The structure is simple and energy-saving. The invention also includes a partition group 140, and the partition group 140 includes two partitions which are parallel to each other and built into the grid frame 110, and a diversion channel 141 is formed between the two partitions. The portion of the aeration pipe 210 located in the diversion channel 141 is connected to a diversion pipe 212, and the diversion pipe 212 is arranged parallel to the partition to facilitate water flow through the filler 112 to increase the decomposition rate of organic matter in the water.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A groundwater organic pollutant remediation system, characterized in that: include: A grid caisson, the side wall of which is formed with a plurality of holes communicating with the outside and the inside, and the inside of the grid caisson is filled with fillers; An aeration assembly, comprising an aeration pipe and a fan, wherein the top end of the aeration pipe is connected to the fan, and the bottom end of the aeration pipe passes through the grid caisson to form an aeration end; It also includes a partition group, which includes two partitions parallel to each other and built into the grid caisson, a guide channel is formed between the two partitions, and the part of the aeration pipe located in the guide channel is connected to a guide pipe, and the guide pipe is arranged parallel to the partition.

2. The groundwater organic pollutant remediation system according to claim 1, characterized in that: The grid caisson includes a grid frame, a top plate and a bottom plate. The top and bottom of the grid frame are fixedly connected to the top plate and the bottom plate respectively. The outer wall of the grid frame is formed with a plurality of holes. The bottom end of the aeration pipe passes through the top plate and the bottom plate in sequence and is fixedly connected to the top plate and the bottom plate.

3. The groundwater organic pollutant remediation system according to claim 1, characterized in that: The top of the grid caisson is fixedly connected with a lifting lug.

4. The groundwater organic pollutant remediation system according to claim 1, characterized in that: The filler is pumice.

5. The groundwater organic pollutant remediation system according to claim 1, characterized in that: A plurality of aeration ports are formed at the bottom of the aeration tube.

6. The groundwater organic pollutant remediation system according to claim 5, characterized in that: Aeration joints are installed on the plurality of aeration ports, the plurality of aeration joints are evenly arranged along the circumference of the aeration pipe, and the plurality of aeration joints are arranged obliquely downward away from the aeration pipe.

7. The groundwater organic pollutant remediation system according to claim 1, characterized in that: There are multiple aeration pipes, and the top ends of the multiple aeration pipes are connected to the fan in sequence via a transverse pipe, and both ends of the transverse pipe are closed.

8. The groundwater organic pollutant remediation system according to claim 7, characterized in that: It also includes a hose, and the top of the transverse pipe is connected to the fan via the hose.

9. The groundwater organic pollutant remediation system according to claim 1, characterized in that: The plurality of guide tubes in the guide channel are arranged in parallel.

10. The groundwater organic pollutant remediation system according to claim 1, characterized in that: There are multiple partition net groups, and the multiple partition net groups are arranged in sequence along the vertical direction.

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