Solar thermal coupling microbial remediation device

Abstract

The utility model discloses a solar thermal coupling microbial remediation device. The device comprises a submersible pump for pumping underground water; the liquid inlet end of the filter is connected with the liquid outlet end of the submersible pump through a water conveying pipe; the liquid inlet end of the solar water heater is connected with the liquid outlet end of the filter through a pipeline; the medicine preparation box group is used for preparing a repairing medicine and is connected with the liquid outlet end of the solar water heater through a water supply pipe; and the injection pipe is used for injecting the repairing agent prepared by the agent preparation box group into the to-be-repaired soil body, and is connected with the agent preparation box group. The microbial remediation device can meet the microbial reaction temperature, improves the remediation efficiency, saves the cost and is low in energy consumption.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental restoration, in particular to a solar thermal coupling microbial restoration device. Background Art

[0002] Bioremediation is a promising technology for transforming or degrading toxic chemicals in various environmental media. Compared to physical and chemical methods, bioremediation has become a hot topic of research due to its safety, cost-effectiveness, and environmental friendliness. The success of bioremediation is highly dependent on the presence of potential microorganisms, the type and concentration of pollutants, and environmental conditions. Previous studies have found that elevated temperatures affect microbial cell metabolism and their degradation capabilities. Microbial decomposition is more effective at suitable temperatures, so sufficient temperature increases can promote bioremediation. Benzene and petroleum hydrocarbon pollutants require aerobic degradation to produce CO2 and water. However, aerobic microorganisms are mostly mesophilic, requiring temperatures generally around 30°C. Low underground temperatures severely restrict microbial growth, necessitating the use of green, low-carbon methods to warm the subsurface.

[0003] A common method of raising the temperature is to heat the land in situ, but this heating method requires a large amount of gas or diesel, consumes a lot of energy, and emits large amounts of carbon dioxide and is costly. Utility Model Content

[0004] In order to overcome the defects of the existing technology, a solar thermal coupled microbial remediation device is now provided to solve the problems of high energy consumption, large carbon dioxide emissions and high cost of the method of increasing the land temperature used in the existing technology for land remediation.

[0005] In order to achieve the above technical effects, the solution provided by the utility model is to provide a solar thermal coupled microbial remediation device, which includes: a submersible pump for extracting groundwater; a filter, the liquid inlet end of the filter is connected to the liquid outlet end of the submersible pump through a water pipe; a solar water heater, the liquid inlet end of the solar water heater is connected to the liquid outlet end of the filter through a pipeline; a medicine dispensing box group for preparing remediation agents, the medicine dispensing box group is connected to the liquid outlet end of the solar water heater through a water supply pipe; an injection pipe for injecting the remediation agent prepared by the medicine dispensing box group into the soil to be repaired, and the injection pipe is connected to the medicine dispensing box group.

[0006] Preferably, the medicine dispensing box group includes a first medicine dispensing box connected to the water supply pipe, and a second medicine dispensing box connected to the first medicine dispensing box, and the second medicine dispensing box is connected to the injection pipe.

[0007] Preferably, there are multiple first medicine dispensing boxes, each of which is provided with a first water pump, and all of the first water pumps are connected to a second medicine dispensing box at one end away from the first medicine dispensing box. The second medicine dispensing box is provided with a second water pump, and the second water pump is connected to the injection pipe.

[0008] Preferably, temperature control probes are installed on the outer wall of the water supply pipe and inside the first medicine dispensing box respectively.

[0009] Preferably, a mixer is installed in each of the first medicine dispensing box and the second medicine dispensing box.

[0010] Preferably, a liquid level transmitter is installed in each of the first medicine dispensing box and the second medicine dispensing box.

[0011] Preferably, the injection pipe includes multiple branch pipes for injecting the repair agent prepared by the drug dispensing box group into the soil to be repaired, a collection pipe connected in series to all the branch pipes, and a connecting pipe connected between the collection pipe and the second water pump.

[0012] Preferably, a first ball valve is connected between each branch pipe and the collecting pipe.

[0013] Preferably, a second ball valve is connected between the liquid outlet of the submersible pump and the water pipe.

[0014] Preferably, a water tank is connected between the filter and the solar water heater, the liquid outlet of the filter is connected to the water tank through a pipe, and the water tank is connected to the liquid inlet of the solar water heater through a pipe.

[0015] The beneficial effect of the present invention is that the solar thermal coupled microbial remediation device of the present invention extracts groundwater and uses a solar water heater to heat the extracted groundwater. The heated groundwater is mixed with a remediation agent and injected into the underground area to be remediated, so that the diluted agent and microorganisms work together to remediate the soil, thereby improving the reaction activity of pollutant degradation. The underground environment has a relatively low temperature, which is not suitable for microbial growth and metabolism, and the degradation rate is very low. The present invention uses groundwater heated by a solar system and a remediation agent to mix and inject it into the area to be remediated. On the one hand, it can avoid the low temperature of groundwater affecting the medicinal properties of the remediation agent. On the other hand, it can meet the temperature required for normal metabolism of microorganisms, stimulate microbial growth and metabolism, and increase the degradation rate, thereby achieving the effects of saving remediation costs, reducing resource consumption, and reducing carbon dioxide emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural schematic diagram of the utility model of a solar thermal coupled microbial remediation device.

[0018] Figure 2 yes Figure 1 Enlarged structural diagram at point A in the middle.

[0019] Figure 3 for Figure 1 Enlarged structural diagram at point B in the middle.

[0020] The corresponding relationship of the labels in the figure is as follows:

[0021] 1-Extraction well; 2-Water pipe; 3-Filter; 4-Water storage tank; 5-Solar water heater; 6-Water supply pipe; 7-First temperature control probe; 8-Liquid level transmitter; 9-Second temperature control probe; 10-First medicine dispensing box; 11-Mixer; 12-First water pump; 13-Second medicine dispensing box; 14-Second water pump; 15-Manifold; 16-Flow transmitter; 17-Pressure transmitter; 18-Submersible pump; 19-Second ball valve; 20-Check valve; 21-Connecting pipe; 22-First ball valve; 23-Float flowmeter; 24-Mechanical water meter; 25-Branch pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figures 1 to 3 As shown, the embodiment of the present invention provides a solar thermal coupled microbial remediation device, including a submersible pump 18, a filter 3, a solar water heater 5, a drug dispensing box group, and an injection pipe.

[0024] like Figure 1 As shown, an extraction well 1 is dug underground. Figure 2As shown, a submersible pump 18 is installed at the bottom of extraction well 1 to extract groundwater. The liquid inlet of filter 3 is connected to the liquid outlet of submersible pump 18 via water pipe 2. Preferably, there are multiple extraction wells 1, each equipped with a submersible pump 18 and a water pipe 2. Multiple water pipes 2 are connected to filter 3.

[0025] The liquid inlet of the solar water heater 5 is connected to the liquid outlet of the filter 3 through a pipeline.

[0026] A medicine dispensing box group is used for preparing repair agents, and the medicine dispensing box group is connected to the liquid outlet end of the solar water heater 5 through a water supply pipe 6.

[0027] The injection pipe is connected to the medicine dispensing box group, and the injection pipe is used to inject the repair agent prepared by the medicine dispensing box group into the soil to be repaired.

[0028] The groundwater is extracted by the submersible pump 18, filtered through the filter 3, and then flows into the solar water heater 5 for heating. The heated groundwater flows into the medicine dispensing box group, and the repair agent is placed in the medicine dispensing box group to dilute it with the groundwater. The diluted repair agent is then injected into the location to be repaired through the injection pipe.

[0029] As a preferred embodiment, the medicine dispensing box group includes a first medicine dispensing box 10 connected to the water supply pipe 6, and a second medicine dispensing box 13 connected to the first medicine dispensing box 10, and the second medicine dispensing box 13 is connected to the injection pipe.

[0030] In a preferred embodiment, there are multiple first dispensing boxes 10, each equipped with a first water pump 12. All first water pumps 12 are connected to a second dispensing box 13 at one end, remote from the first dispensing box 10. The second dispensing box 13 is equipped with a second water pump 14, which is connected to an injection pipe. Heated groundwater and remediation agents are mixed in the first dispensing box 10, and the diluted remediation agents in all first dispensing boxes 10 are mixed in the second dispensing box 13.

[0031] As a preferred embodiment, temperature control probes are installed on the outer wall of the water supply pipe 6 and inside the first medicine dispensing box 10. Figure 1 As shown, a first temperature control probe 7 is installed on the outer wall of the water supply pipe 6, and a second temperature control probe 9 is installed inside the first dispensing box 10, so as to monitor the temperature of the groundwater heated by the solar water heater 5.

[0032] As a preferred embodiment, a mixer 11 is installed in each of the first dispensing box 10 and the second dispensing box 13 to mix the groundwater and the repair agent evenly.

[0033] As a preferred embodiment, Figure 1As shown, the first dispensing box 10 and the second dispensing box 13 are respectively installed with a liquid level transmitter 8 to measure and control the groundwater level in the dispensing box group.

[0034] As a preferred embodiment, the injection pipe includes multiple branch pipes 25 for injecting the repair agent prepared by the drug dispensing box assembly into the soil to be repaired, a manifold pipe 15 connected in series to all the branch pipes 25, and a connecting pipe 21 connecting the manifold pipe 15 to the second water pump 14. The repair agent mixed in the second drug dispensing box 13 flows into the different branch pipes 25 through the connecting pipe 21 and the manifold pipe 15.

[0035] Preferably, a flow transmitter 16 and a pressure transmitter 17 are installed on the connecting pipe 21. The flow transmitter 16, also known as a flow sensor, or simply a flow meter, can detect the instantaneous flow rate and total flow rate of the repair agent flowing through the connecting pipe 21. The pressure transmitter 17 is a device that converts pressure into a pneumatic signal or an electric signal for control and remote transmission. It can convert the physical pressure parameters of gas, liquid, etc. sensed by the pressure measuring element sensor into a standard electrical signal to supply secondary instruments such as indicator alarms, recorders, and regulators for measurement, indication, and process adjustment. In other words, it can transmit the pressure of the repair agent flowing through the connecting pipe 21 to equipment such as recorders for monitoring.

[0036] As a preferred embodiment, Figure 3 As shown, a first ball valve 22 is connected between each branch pipe 25 and the main pipe 15. The first end of the first ball valve 22 is connected to the branch pipe 25, and the second end of the first ball valve 22 is connected to the main pipe 15. The first ball valve 22 can provide fast fluid switching and regulation for the branch pipe 25.

[0037] Preferably, a mechanical water meter 24 is connected between the branch pipe 25 and the first end of the first ball valve 22. The first end of the mechanical water meter 24 is connected to the branch pipe 25, and the second end of the mechanical water meter 24 is connected to the first end of the first ball valve 22. The mechanical water meter 24 can measure the total flow rate of the repair agent flowing through each branch pipe 25.

[0038] Preferably, a float flowmeter 23 is connected between the second end of the mechanical water meter 24 and the first end of the first ball valve 22. The first end of the float flowmeter 23 is connected to the second end of the mechanical water meter 24, and the second end of the float flowmeter 23 is connected to the first end of the first ball valve 22. The float flowmeter 23 is also known as a rotor flowmeter, which is used to measure fluid flow and can detect the instantaneous flow rate and cumulative flow rate of the repair agent flowing through each injection pipe.

[0039] As a preferred embodiment, Figure 2As shown, a second ball valve is connected between the liquid outlet of the submersible pump 18 and the water pipe. A second ball valve 19 is installed at the liquid outlet of the submersible pump 18, and the end of the second ball valve 19 away from the submersible pump 18 is connected to the water pipe 2.

[0040] Preferably, second ball valve 19 is further connected to water pipe 2 via a check valve 20, with a first end of check valve 20 connected to second ball valve 19 and a second end of check valve 20 connected to water pipe 2. The combination of second ball valve 19 and check valve 20 provides rapid fluid switching and regulation while preventing damage caused by fluid backflow.

[0041] As a preferred embodiment, a water tank 4 is further connected between the filter 3 and the solar water heater 5. The liquid outlet of the filter 3 is connected to the water tank 4 via a pipe, and the water tank 4 is connected to the liquid inlet of the solar water heater 5 via a pipe. Preferably, there are multiple filters 3, and the liquid outlets of all filters 3 are connected to the water tank 4 via a pipe.

[0042] The solar thermal coupled microbial remediation device of the present invention extracts groundwater and heats the groundwater with a solar water heater. The heated groundwater is then used to dilute the remediation agent, thereby reducing water waste and achieving the first step of treating the contaminated groundwater. The remediation agent diluted with groundwater is then injected into the soil, allowing the diluted agent and microorganisms to work together to remediate the soil. The present invention utilizes solar energy to heat the extracted groundwater. On the one hand, raising the temperature of the low-temperature groundwater can meet the temperature required for normal metabolism of underground microorganisms. On the other hand, it can prevent the low-temperature groundwater from affecting the medicinal properties of the remediation agent and increase the reaction activity of pollutant degradation. The device is powered by solar energy instead of traditional power supply methods, further reducing costs and increasing efficiency, meeting the concept of green and low-carbon remediation.

[0043] Any portion not described in the present invention is the same as the prior art or can be implemented using the prior art. Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A solar thermal coupled microbial remediation device, characterized in that: include: Submersible pumps for extracting groundwater; A filter, wherein the liquid inlet end of the filter is connected to the liquid outlet end of the submersible pump through a water pipe; A solar water heater, wherein the liquid inlet of the solar water heater is connected to the liquid outlet of the filter through a pipeline; A medicine dispensing box group for preparing a repair agent, wherein the medicine dispensing box group is connected to the liquid outlet of the solar water heater through a water supply pipe; An injection pipe for injecting the repair agent prepared by the medicine dispensing box assembly into the soil body to be repaired, wherein the injection pipe is connected to the medicine dispensing box assembly; The medicine dispensing box set includes a first medicine dispensing box connected to the water supply pipe, and a second medicine dispensing box connected to the first medicine dispensing box, wherein the second medicine dispensing box is connected to the injection pipe; There are multiple first medicine dispensing boxes, each of which is provided with a first water pump, and one end of all the first water pumps away from the first medicine dispensing box is commonly connected to a second medicine dispensing box, and the second medicine dispensing box is provided with a second water pump, and the second water pump is connected to the injection pipe; The injection pipe includes a plurality of branch pipes for injecting the repair agent prepared by the drug dispensing box group into the soil to be repaired, a central pipe connected in series to all the branch pipes, and a connecting pipe connected between the central pipe and the second water pump.

2. The solar thermal coupled microbial remediation device according to claim 1, characterized in that: Temperature control probes are installed on the outer wall of the water supply pipe and inside the first medicine dispensing box respectively.

3. The solar thermal coupled microbial remediation device according to claim 1, characterized in that: A mixer is installed in the first medicine dispensing box and the second medicine dispensing box respectively.

4. The solar thermal coupled microbial remediation device according to claim 1, characterized in that: Liquid level transmitters are installed in the first medicine dispensing box and the second medicine dispensing box respectively.

5. The solar thermal coupled microbial remediation device according to claim 1, characterized in that: A first ball valve is connected between each branch pipe and the collecting pipe.

6. The solar thermal coupled microbial remediation device according to claim 1, characterized in that: A second ball valve is connected between the liquid outlet of the submersible pump and the water delivery pipe.

7. The solar thermal coupled microbial remediation device according to claim 1, characterized in that: A water tank is also connected between the filter and the solar water heater. The liquid outlet of the filter is connected to the water tank through a pipeline, and the water tank is connected to the liquid inlet of the solar water heater through a pipeline.

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