CN216737992U - Groundwater remediation system - Google Patents
Groundwater remediation system Download PDFInfo
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- CN216737992U CN216737992U CN202220065956.XU CN202220065956U CN216737992U CN 216737992 U CN216737992 U CN 216737992U CN 202220065956 U CN202220065956 U CN 202220065956U CN 216737992 U CN216737992 U CN 216737992U
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- 238000005067 remediation Methods 0.000 title claims abstract description 87
- 239000003673 groundwater Substances 0.000 title claims abstract description 77
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 98
- 238000002347 injection Methods 0.000 claims abstract description 64
- 239000007924 injection Substances 0.000 claims abstract description 64
- 230000000813 microbial effect Effects 0.000 claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000003860 storage Methods 0.000 claims abstract description 32
- 238000000605 extraction Methods 0.000 claims abstract description 27
- 244000005700 microbiome Species 0.000 claims abstract description 27
- 238000002360 preparation method Methods 0.000 claims abstract description 14
- 239000002912 waste gas Substances 0.000 claims abstract description 14
- 239000007789 gas Substances 0.000 claims description 21
- 235000015097 nutrients Nutrition 0.000 claims description 20
- 239000000243 solution Substances 0.000 claims description 18
- 239000002068 microbial inoculum Substances 0.000 claims description 15
- 238000005086 pumping Methods 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 238000001179 sorption measurement Methods 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims 6
- 230000008439 repair process Effects 0.000 abstract description 4
- 239000002957 persistent organic pollutant Substances 0.000 description 43
- 239000003795 chemical substances by application Substances 0.000 description 19
- 239000000203 mixture Substances 0.000 description 15
- 238000006479 redox reaction Methods 0.000 description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 229910000278 bentonite Inorganic materials 0.000 description 3
- 239000000440 bentonite Substances 0.000 description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 244000052769 pathogen Species 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 150000003384 small molecules Chemical class 0.000 description 2
- 239000003440 toxic substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000001766 physiological effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The application discloses groundwater repair system relates to groundwater repair technical field. The underground water remediation system comprises an ozone injection well, an extraction well, a microorganism remediation well, an ozone preparation device, a waste gas treatment device and a microorganism storage device; the ozone injection well and the microbial remediation well both extend to a groundwater layer; the ozone preparation device is connected with the ozone injection well, the waste gas treatment device is connected with the extraction well, and the microorganism storage device is connected with the microorganism remediation well. The scheme can solve the problems that the existing underground water restoration system destroys the original hydraulic gradient and has lower restoration efficiency.
Description
Technical Field
The application belongs to the technical field of groundwater remediation, and particularly relates to a groundwater remediation system.
Background
In the industrial production process, organic pollutants inevitably seep into the underground water layer, so that the content of the organic pollutants in the underground water is increased, and pathogens appear, and meanwhile, the pathogens continuously migrate and diffuse under the original hydraulic gradient, so that the surrounding environment is polluted.
In order to solve the above problems, in practical applications, a barrier technology is usually used to block the way of continuing the diffusion of organic pollutants in groundwater, that is, a waterproof curtain is built around the organic pollutants, and the waterproof curtain is mostly made of materials such as cement and bentonite, so as to control the groundwater containing the organic pollutants within a certain range. However, after a while, the effectiveness of the waterproof curtain is reduced, and groundwater is continuously oozed out. Therefore, the method not only destroys the original hydraulic gradient, but also has lower removal efficiency of organic pollutants.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application aims to provide an underground water repairing system which can solve the problems that an existing underground water repairing system is damaged in the prior art, hydraulic gradient is changed, and repairing efficiency is low.
In order to solve the technical problem, the present application is implemented as follows:
an underground water remediation system comprises an ozone injection well, an extraction well, a microorganism remediation well, an ozone preparation device, a waste gas treatment device and a microorganism storage device;
the ozone injection well and the microbial remediation well both extend to a groundwater layer;
the ozone preparation device is connected with the ozone injection well, the waste gas treatment device is connected with the extraction well, and the microorganism storage device is connected with the microorganism remediation well.
In the embodiment of the application, an ozone injection well, an air extraction well and a microorganism remediation well are arranged at the downstream of a pollution plume of underground water, when the underground water is remedied, firstly, ozone is injected into the ozone injection well to form a gas barrier wall, the ozone and organic pollutants in the underground water generate oxidation-reduction reaction, the organic pollutants are oxidized into non-toxic substances or volatile small-molecule organic pollutants, the ozone is reduced into oxygen, the oxygen continuously escapes from the underground water, and the volatile organic pollutants are taken out; then, the volatile organic pollutants enter the waste gas treatment device through the extraction well, and are discharged after being treated by the waste gas treatment device; in addition, the microorganism storage device is used for introducing a microorganism repairing agent into the microorganism repairing well so as to enhance the self-purification capacity of underground water, thereby restoring the water body ecology. Therefore, the underground water remediation system provided by the embodiment of the application can avoid damage to the original hydraulic gradient and improve the remediation efficiency of the underground water.
Drawings
Fig. 1 is a schematic structural diagram of a groundwater remediation system disclosed in an embodiment of the application.
Arrows are used to indicate the flow of contaminants and groundwater.
Description of reference numerals:
110-ozone injection well, 120-extraction well, 130-microorganism repair well, 140-ozone preparation device, 150-waste gas treatment device, 151-fan, 152-gas-liquid separator, 153-refrigerator, 154-activated carbon adsorption tank, 160-microorganism storage device, 161-microbial inoculum storage tank, 162-nutrient solution storage tank, 170-gas compression device, 180-injection pump, 190-well pipe, 191-first pipe section, 192-second pipe section, 210-first filling layer, 220-second filling layer, 230-water-stop plate and 240-pollution source.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/", and generally means that the former and latter related objects are in an "or" relationship.
The groundwater remediation system provided by the embodiment of the present application is described in detail with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
As shown in fig. 1, the present embodiment discloses an underground water remediation system, which includes an ozone injection well 110, an extraction well 120, a microorganism remediation well 130, an ozone preparation device 140, an exhaust gas treatment device 150, and a microorganism storage device 160. The pollution source 240 on the surface of the earth may not only pollute the soil but may also penetrate into the groundwater layer to pollute the groundwater. Based on this, the groundwater after pollution can be repaired through this groundwater repair system. Of course, the groundwater remediation system may also be located in areas where there may be a risk of contamination, and is not particularly limited herein.
In specific implementation, a plurality of holes may be drilled in the formation, the ozone injection well 110, the air extraction well 120 and the microbial remediation well 130 may be respectively disposed in the holes, and optionally, the ozone injection well 110, the air extraction well 120 and the microbial remediation well 130 are spaced apart from each other, so that mutual interference among the three is not easy, and both the ozone injection well 110 and the microbial remediation well 130 extend to the groundwater layer.
Alternatively, ozone preparation device 140, exhaust treatment device 150, and microorganism storage device 160 may all be disposed above the surface of the earth to facilitate operation. Ozone preparation facilities 140 is used for producing ozone, and ozone preparation facilities 140 links to each other with ozone injection well 110, and ozone passes into in the groundwater layer through ozone injection well 110, forms gaseous separation wall, prevents secondary pollution, and simultaneously, ozone and the organic pollutant in the groundwater take place redox reaction to produce mixture such as oxygen, volatile organic pollutant and particulate matter. The waste gas treatment device 150 is used for treating a mixture generated after the ozone and the organic pollutants in the underground water are subjected to oxidation-reduction reaction, the waste gas treatment device 150 is connected with the pumping well 120, and the mixture enters the waste gas treatment device 150 through the pumping well 120 and is discharged after being treated by the waste gas treatment device 150. Microbial storage device 160 is used for storing microbial remediation agent, and microbial storage device 160 links to each other with microbial remediation well 130, and microbial remediation agent passes through microbial remediation well 130 and lets in the groundwater layer to carry out the degradation to remaining organic pollutant in the groundwater.
In the embodiment of the application, an ozone injection well 110, an air extraction well 120 and a microorganism remediation well 130 are arranged at the downstream of the polluted plume of the underground water, when the underground water is remediated, firstly, ozone is injected into the ozone injection well 110 to form a gas barrier, the ozone and organic pollutants in the underground water generate oxidation-reduction reaction, the organic pollutants are oxidized into non-toxic substances or volatile small molecular organic pollutants, the ozone is reduced into oxygen, the oxygen continuously escapes from the underground water, and the volatile organic pollutants are taken out; then, the volatile organic pollutants enter the exhaust gas treatment device 150 through the pumping well 120, and are discharged after being treated by the exhaust gas treatment device 150; in addition, the microbe storage device 160 introduces microbe remediation agents into the microbe remediation well 130 to enhance the "self-cleaning" capability of the groundwater, thereby restoring the water ecology. Therefore, the underground water remediation system provided by the embodiment of the application can avoid damage to the original hydraulic gradient and improve the remediation efficiency of the underground water.
In an alternative embodiment, the waste gas treatment device 150 includes a blower 151, a gas-liquid separator 152, a refrigerator 153, and an activated carbon adsorption tank 154 connected in sequence, and the blower 151 is located between the gas-liquid separator 152 and the extraction well 120. After the ozone and the organic pollutants in the groundwater undergo oxidation-reduction reaction, the generated mixture contains particulate matters and volatile small-molecule organic pollutants, so that the mixture is firstly pumped out of the pumping well 120 through the fan 151 and then enters the gas-liquid separator 152 to remove most of liquid drops; then the mixture is introduced into a refrigerator 153 for freezing to remove most of the volatile organic pollutants, and optionally, the refrigerator 153 may freeze the mixture to below-20 ℃, thereby improving the removal efficiency of the organic pollutants; then, the remaining mixture is introduced into an activated carbon adsorption tank 154 to be discharged after reaching the adsorption standard. Of course, the mixture from which the droplets are removed can also be incinerated to remove organic pollutants, particulate matters and the like in the mixture, but the method not only needs energy consumption, but also generates carbon dioxide, and the method is less environmentally friendly compared with the former method. Therefore, the exhaust gas treatment device 150 according to the embodiment of the present application is more environmentally friendly.
The ozone generated by the ozone generating device 140 may be directly introduced into the ozone injection well 110, but in this case, the efficiency of ozone transfer into the groundwater layer is low due to the restriction of the space for the ozone injection well 110. Based on this, optionally, the groundwater remediation system further comprises a gas compression device 170, the gas compression device 170 being disposed between the ozone preparation device 140 and the ozone injection well 110. The gas compression device 170 is a device capable of performing gas compression, and is mainly used for transportation of gas. Ozone generated by the ozone generating device 140 is first compressed by the gas compressing device 170 and then introduced into the groundwater layer through the ozone injection well 110, thereby improving the ozone transfer efficiency.
In an alternative embodiment, the microorganism storage device 160 comprises a microbial inoculum storage tank 161 and a nutrient solution storage tank 162, the microbial inoculum storage tank 161 is used for storing a microbial inoculum, and the microbial inoculum can promote the dissolution and release of insoluble nutrients in the groundwater so as to improve the supply capacity of nutrients in the groundwater and activate potential nutrients in the groundwater so as to improve the nutrients in the groundwater; the nutrient solution storage tank 162 is used for storing a microbial nutrient solution, and the microbial nutrient solution is used for providing nutrition for microorganisms, so as to meet the requirements of growth, reproduction and completion of various physiological activities of microbial organisms and improve the performance of the microorganisms. The microbial inoculum storage tank 161 and the nutrient solution storage tank 162 are respectively connected with the microbial remediation well 130, and a certain proportion of microbial inoculum and microbial nutrient solution are simultaneously introduced into the underground water layer through the microbial remediation well 130, so that the remediation capability of the microbial remediation agent is improved.
The microbial agent and the microbial nutrient solution can be directly introduced into the microbial remediation well 130, so that the injection rate and the injection proportion of the microbial agent and the microbial nutrient solution are inconvenient to control by workers; in addition, the microbial inoculum and the microbial nutrient solution are easy to expose in the process of injection, which causes waste. In view of this, optionally, the groundwater remediation system further includes an injection pump 180, the microbial inoculum storage tank 161 and the nutrient solution storage tank 162 are both connected to the microbial remediation well 130 through the injection pump 180, so as to inject the microbial inoculum and the microbial nutrient solution into the microbial remediation well 130 through the injection pump 180, and the injection pump 180 has the characteristics of high precision and good liquid conveying stability, so that the injection pump 180 is adopted, which not only facilitates control of the injection rate and the injection proportion of the microbial inoculum and the microbial nutrient solution, but also avoids waste of the microbial inoculum and the microbial nutrient solution.
In an alternative embodiment, ozone injection well 110, extraction well 120, and microbial remediation well 130 each comprise well casing 190. Further optionally, the well casing 190 includes a first well casing, a second well casing and a third well casing, the first well casing may be disposed in a corresponding hole of the ozone injection well 110, the ozone preparation device 140 is connected to the first well casing, and the ozone is injected into the groundwater layer through the first well casing. The second well pipe can be disposed in a hole corresponding to the pumping well 120, the exhaust gas treatment device 150 is connected to the second well pipe, and a mixture generated by oxidation-reduction reaction between ozone and organic pollutants in the groundwater enters the exhaust gas treatment device 150 through the second well pipe. The third well pipe can be arranged in a hole corresponding to the microbial remediation well 130, the microbial storage device 160 is connected with the third well pipe, the microbial remediation agent is introduced into the groundwater layer through the third well pipe to degrade residual organic pollutants in the groundwater, optionally, the bottom end of the third well pipe can be of a closed structure, so that the microbial remediation agent injected into the third well pipe is prevented from directly flowing out from the bottom of the third well pipe, and the microbial remediation agent is enabled to degrade only local organic pollutants in the groundwater.
Alternatively, the first and second well tubulars may be made of 304 stainless steel and the third well tubular may be made of PVC. In addition, the first well pipe, the second well pipe and the third well pipe may have a diameter DN50 (i.e., a nominal diameter of 50mm), although the well pipe 190 may have other specifications, and is not limited thereto.
In an alternative embodiment, ozone injection well 110, extraction well 120, and microbial remediation well 130 each further comprise a first packed bed 210 and a second packed bed 220, the porosity of first packed bed 210 being less than the porosity of second packed bed 220. The first filling layer 210 covers the first pipe section 191, the first filling layer 210 can be clay rock, and the clay rock expands violently after encountering water, so that the safety is low; therefore, the first filling layer 210 may be bentonite, which has strong hygroscopicity and expansibility, and has a certain adsorption capacity to various gases, liquids and organic substances, so as to adsorb a mixture generated after ozone is oxidized and reduced, and the bentonite may be expanded when it contacts water due to moisture contained in the mixture, so that the sealability of the first filling layer 210 may be improved. The second pipe section 192 is covered by a second filling layer 220, the second filling material can be quartz sand, fine gravel and the like, the fine gravel needs to be obtained through screening, the workload is large, the surface of the fine gravel is rough, and the resistance to water flow is large; therefore, the second filling layer 220 may be quartz sand, which has the characteristics of hardness, wear resistance, uniform particle size, and smooth surface, and is not only convenient for operation, but also convenient for groundwater to pass through after remediation.
Since groundwater has fluidity, when the number of ozone injection wells 110 is small, organic contaminants in groundwater cannot be all redox-reacted with ozone, and thus a small amount of organic contaminants still remains in groundwater. Therefore, in an alternative embodiment, the number of the ozone injection wells 110 is at least two, each ozone injection well 110 is arranged at intervals and is connected with the ozone preparation device 140, the pumping wells 120 are positioned between adjacent ozone injection wells 110, that is, after a plurality of ozone injection wells 110 are arranged, when the organic pollutants in the groundwater and the ozone in the ozone injection well 110 arranged at the upstream of the pumping well 120 cannot completely undergo oxidation reaction, the part of the residual organic pollutants flow to the downstream of the pumping well 120 along with the groundwater, so that the oxidation reduction reaction is performed again with the ozone in the ozone injection well 110 arranged at the downstream of the pumping well 120, and the remediation efficiency of the groundwater remediation system is improved.
The microbial remediation well 130 can be disposed upstream of the ozone injection well 110, in which case the content of organic pollutants in the groundwater is high, and a large amount of microbial remediation agent needs to be introduced for degradation, and the production cost of the microbial remediation agent is high, which will greatly increase the cost of the groundwater remediation system. Therefore, optionally, in the flow direction of the groundwater, the ozone injection well 110 and the extraction well 120 are both located at the upstream of the microbial remediation well 130, and since the mobility of ozone is strong and the ozone can be sufficiently contacted with the organic pollutants, the organic pollutants in the groundwater are firstly subjected to oxidation-reduction reaction with the ozone, so that most of the organic pollutants are removed; then, the residual small amount of organic pollutants flows to the downstream of the extraction well 120 along with the underground water to contact with the microbial remediation agent, and only a small amount of the microbial remediation agent is needed to degrade the part of organic pollutants, so that the cost of the underground water remediation system is reduced.
Ozone injection well 110 and microbial remediation well 130 may extend to the bottom surface of the groundwater layer, but the bottom surface may have large bedrock, resulting in a concave-convex surface, so that the contact area between the ends of ozone injection well 110 and microbial remediation well 130 and the bottom surface of the groundwater layer is small, which easily causes organic pollutants to flow downstream of extraction well 120 without undergoing redox reaction with ozone. Therefore, in an alternative embodiment, the groundwater remediation system further comprises a water baffle 230, the ozone injection well 110, the air extraction well 120 and the microorganism remediation well 130 are all located above the water baffle 230, and the water baffle 230 is disposed on the bottom surface of the groundwater layer, in which case the contact area between the end portions of the ozone injection well 110 and the microorganism remediation well 130 and the bottom surface of the groundwater layer is large, so that the organic pollutants and the ozone are sufficiently subjected to redox reaction, and the remediation efficiency of the groundwater remediation system is improved.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The underground water remediation system is characterized by comprising an ozone injection well (110), an air extraction well (120), a microorganism remediation well (130), an ozone preparation device (140), an exhaust gas treatment device (150) and a microorganism storage device (160);
the ozone injection well (110) and the microbial remediation well (130) each extend to a groundwater layer;
the ozone preparation device (140) is connected with the ozone injection well (110), the waste gas treatment device (150) is connected with the pumping well (120), and the microorganism storage device (160) is connected with the microorganism remediation well (130).
2. A groundwater remediation system as claimed in claim 1, wherein the off-gas treatment device (150) comprises a fan (151), a gas-liquid separator (152), a refrigerator (153) and an activated carbon adsorption tank (154) connected in series, the fan (151) being located between the gas-liquid separator (152) and the extraction well (120).
3. A groundwater remediation system as claimed in claim 1 further comprising a gas compression device (170), the gas compression device (170) being disposed between the ozone production device (140) and the ozone injection well (110).
4. A groundwater remediation system as claimed in claim 1, wherein the microorganism storage device (160) comprises a microbial inoculum storage tank (161) and a nutrient solution storage tank (162), the microbial inoculum storage tank (161) and the nutrient solution storage tank (162) being connected to the microbial remediation well (130) respectively.
5. A groundwater remediation system as claimed in claim 4, further comprising an injection pump (180), wherein the microbial inoculum storage tank (161) and the nutrient solution storage tank (162) are both connected to the microbial remediation well (130) by means of the injection pump (180).
6. A groundwater remediation system as claimed in claim 1, wherein the ozone injection well (110), the extraction well (120) and the microbial remediation well (130) each comprise a well casing (190), the well casing (190) comprising a first pipe section (191) and a second pipe section (192) connected below the first pipe section (191), the second pipe section (192) being a slotted screen, the second pipe section of the ozone injection well (110) and the second pipe section of the microbial remediation well (130) each being located at the groundwater level, the second pipe section of the extraction well (120) being located above a groundwater level.
7. A groundwater remediation system as claimed in claim 6, wherein the ozone injection well (110), the extraction well (120) and the microbial remediation well (130) each further comprise a first packing layer (210) and a second packing layer (220), the first packing layer (210) covering the first pipe section (191), the second packing layer (220) covering the second pipe section (192), the first packing layer (210) having a porosity less than the porosity of the second packing layer (220).
8. A groundwater remediation system as claimed in claim 1, wherein the number of ozone injection wells (110) is at least two, each ozone injection well (110) is spaced apart and connected to the ozone generating apparatus (140), and the extraction well (120) is located between adjacent ozone injection wells (110).
9. A groundwater remediation system as claimed in claim 1, wherein the ozone injection well (110) and the extraction well (120) are both located upstream of the microbial remediation well (130) in the direction of flow of groundwater.
10. A groundwater remediation system according to claim 1, further comprising a water stop plate (230), the ozone injection well (110), the extraction well (120) and the microbial remediation well (130) all being located above the water stop plate (230).
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| CN202220065956.XU CN216737992U (en) | 2022-01-11 | 2022-01-11 | Groundwater remediation system |
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| CN202220065956.XU CN216737992U (en) | 2022-01-11 | 2022-01-11 | Groundwater remediation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116641687A (en) * | 2023-05-31 | 2023-08-25 | 贵阳学院 | Method and device for driving underground water to flow by using carbon dioxide |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116641687A (en) * | 2023-05-31 | 2023-08-25 | 贵阳学院 | Method and device for driving underground water to flow by using carbon dioxide |
| CN116641687B (en) * | 2023-05-31 | 2024-01-26 | 贵阳学院 | Method and device for driving underground water to flow by using carbon dioxide |
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Effective date of registration: 20231123 Address after: Room 301 and 302, Building 2, No. 9, Section 4, Renmin South Road, Wuhou District, Chengdu City, Sichuan Province, 610042 Patentee after: Jerry Environmental Governance Co.,Ltd. Address before: 264003 No. 9 Jerry Road, Laishan District, Shandong, Yantai Patentee before: JEREH ENVIRONMENTAL TECHNOLOGY Co.,Ltd. |
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