CN116750903A - Groundwater remediation method, groundwater remediation system and groundwater system - Google Patents
Groundwater remediation method, groundwater remediation system and groundwater system Download PDFInfo
- Publication number
- CN116750903A CN116750903A CN202310421074.1A CN202310421074A CN116750903A CN 116750903 A CN116750903 A CN 116750903A CN 202310421074 A CN202310421074 A CN 202310421074A CN 116750903 A CN116750903 A CN 116750903A
- Authority
- CN
- China
- Prior art keywords
- groundwater
- preset position
- water
- preset
- well pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003673 groundwater Substances 0.000 title claims abstract description 183
- 238000005067 remediation Methods 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 156
- 238000002347 injection Methods 0.000 claims abstract description 90
- 239000007924 injection Substances 0.000 claims abstract description 90
- 238000000605 extraction Methods 0.000 claims abstract description 84
- 238000004873 anchoring Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 35
- 239000012530 fluid Substances 0.000 claims description 22
- 238000005086 pumping Methods 0.000 claims description 14
- 238000004891 communication Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 18
- 239000007921 spray Substances 0.000 description 12
- 238000001179 sorption measurement Methods 0.000 description 11
- 238000000746 purification Methods 0.000 description 10
- 230000001105 regulatory effect Effects 0.000 description 9
- 239000002957 persistent organic pollutant Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 239000003814 drug Substances 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 239000013043 chemical agent Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001739 rebound effect Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000003809 water extraction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/006—Water distributors either inside a treatment tank or directing the water to several treatment tanks; Water treatment plants incorporating these distributors, with or without chemical or biological tanks
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
Abstract
The application discloses a groundwater remediation method, a groundwater remediation system and a groundwater system, and relates to the technical field of groundwater remediation. The groundwater remediation method comprises the following steps: an anchoring step for marking a first preset position; an extraction step, which is used for extracting the groundwater at the first preset position to carry out water restoration operation; an injection step, which is used for traversing all preset positions, selecting a second preset position and injecting the groundwater after the water restoration operation to the second preset position; and a balancing step, wherein the balancing step is used for calling the groundwater after the water remediation operation to be injected into the first preset position. The scheme can solve the problem that the prior groundwater remediation process has a dominant channel.
Description
Technical Field
The application belongs to the technical field of groundwater remediation, and particularly relates to a groundwater remediation method, a groundwater remediation system and a groundwater system.
Background
With the development of social economy, a large amount of industrial wastewater, municipal garbage, pesticide and chemical fertilizers and the like cause serious pollution to the underground water, and the most common is the organic pollution underground water. The existing method for treating the organic polluted underground water mainly comprises a pumping treatment technology, an in-situ chemical oxidation injection technology and the like, wherein the pumping treatment technology is used for pumping the organic polluted underground water to the ground surface for treatment, the technology can rapidly reduce the pollution concentration, the influence range is larger, the influence diameter of only a single pumping well can reach 10-30 m, but along with the progress of the extraction, the rate of converting pollutants from a solid phase medium of an aquifer into water is smaller and smaller, a tailing effect appears, and after the pumping is stopped, the content of the pollutants in the underground water slowly rises to generate a rebound effect; the in-situ chemical oxidation injection technology is to inject the chemical agent with strong oxidation property into the underground water, and realize the degradation of organic pollutants by utilizing the strong oxidation property, so that the problems of tailing and rebound are effectively solved, but the chemical agent has slower diffusion rate and shorter duration, so that the injection points are usually very dense, the influence diameter of a single injection well is 2-4 m, the method is not suitable for treating large-area polluted underground water, the economy is poor, the chemical agent has uneven diffusion, and repairing blind points are easy to occur.
At present, in practical application, an extraction well and an injection well are simultaneously constructed in a region to be repaired, and organic pollution groundwater is repaired by waste water extraction and medicament injection, but the functions of the extraction well and the injection well are single, so that the extraction flow direction of groundwater is relatively fixed, a 'dominant channel' is very easy to appear, and most of medicaments injected under the condition enter the 'dominant channel', so that the medicaments cannot be uniformly diffused.
Disclosure of Invention
The embodiment of the application aims to provide a groundwater remediation method, a groundwater remediation system and a groundwater system, which can solve the problem that a dominant channel exists in the conventional groundwater remediation process.
In order to solve the technical problems, the application is realized as follows:
in a first aspect, the present application provides a groundwater remediation method, including:
an anchoring step for marking a first preset position;
an extraction step, which is used for extracting the groundwater at the first preset position to carry out water restoration operation;
an injection step, which is used for traversing all preset positions, selecting a second preset position and injecting the groundwater after the water restoration operation to the second preset position;
and a balancing step, wherein the balancing step is used for calling the groundwater after the water remediation operation to be injected into the first preset position.
In a second aspect, an embodiment of the present application further provides a groundwater remediation system, including:
at least one water treatment device for performing a water remediation action;
at least one extraction well pipe for extracting groundwater, said extraction well pipe being in communication with an input of said water treatment device;
at least one injection well pipe for injecting groundwater after water remediation operation, the injection well pipe being in communication with a discharge end of the water treatment device;
and the driving module is arranged on at least one of the injection well pipe or the extraction well pipe and used for driving the fluid in the injection well pipe or the extraction well pipe to flow.
In a third aspect, an embodiment of the present application further provides a groundwater system, including:
a plurality of wellbores in which the extraction well pipe and the injection well pipe described above are disposed;
at least one water treatment device for performing a water remediation action.
In the embodiment of the application, a first preset position is selected at one position in the area where the organic polluted underground water is located, then the underground water at the first preset position is extracted for water restoration operation, so that the polluted underground water is restored to the original water quality, then a second preset position is selected from all preset positions in the area where the organic polluted underground water is located, and the underground water after the water restoration operation is injected into the second preset position; further, groundwater after the water remediation operation may be invoked to be injected into the first preset location to balance the water level of the groundwater, thereby avoiding formation of a "dominant channel".
Drawings
FIG. 1 is a schematic illustration of an arrangement of wellbores according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of an groundwater remediation system according to an embodiment of the application;
FIG. 3 is a schematic view of a part of a groundwater remediation system according to an embodiment of the application;
FIG. 4 is a schematic view of a part of a groundwater remediation system according to an embodiment of the application;
FIG. 5 is a schematic diagram of a water treatment apparatus, a configuration module and a second water pump according to an embodiment of the present application;
FIG. 6 is a flow chart of a groundwater remediation method according to an embodiment of the application;
wherein solid arrows in fig. 1, 2 and 5 are used to represent the flow direction of groundwater, and dashed arrows in fig. 5 are used to represent the flow direction of gas.
Reference numerals illustrate:
100-water treatment device, 110-spraying device, 111-spraying bin, 112-nozzle, 120-blower, 140-gas treatment module, 141-first active carbon adsorption box, 142-induced draft fan, 150-purification module, 160-first water pump, 170-second active carbon adsorption box;
200-extracting a well pipe and 210 opening a screen section;
300-injecting well pipe;
400-a driving module;
500-a configuration module;
610-potential detection device, 620-electromagnetic valve, 630-flowmeter, 640-return well pipe and 650-regulating valve;
700-wellbore, 710-first wellbore, 720-second wellbore, 730-third wellbore;
810-a first level gauge, 820-a second level gauge;
900-a second water pump.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that some, but not all embodiments of the application are described. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
The groundwater remediation method, the groundwater remediation system and the groundwater system provided by the embodiment of the application are described in detail below through specific embodiments and application scenarios thereof in combination with the accompanying drawings.
As shown in fig. 6, an embodiment of the present application discloses a groundwater remediation method, including:
s110, an anchoring step, which is used for marking a first preset position.
The first preset position here specifically refers to any position in the area where the organically-polluted groundwater is located, and the first preset position may be a starting position of groundwater remediation.
S210, extracting the groundwater at the first preset position for water remediation operation.
The water restoration operation specifically refers to restoration of the polluted groundwater to the original water quality by adopting chemical oxidation and other technologies.
S310, an injection step, namely traversing all preset positions, selecting a second preset position, and injecting groundwater after water restoration operation to the second preset position.
All preset positions herein specifically refer to all optional positions within the area where the organically contaminated groundwater is located; the second preset position here specifically refers to any position other than the first preset position in the area where the organically-polluted groundwater is located.
S410, balancing, namely pouring the groundwater after the water remediation operation into a first preset position.
In the embodiment of the application, a first preset position is selected at one position in the area where the organic polluted underground water is located, then the underground water at the first preset position is extracted for water restoration operation, so that the polluted underground water is restored to the original water quality, then a second preset position is selected from all preset positions in the area where the organic polluted underground water is located, and the underground water after the water restoration operation is injected into the second preset position; further, groundwater after the water remediation operation may be invoked to be injected into the first preset location to balance the water level of the groundwater, thereby avoiding formation of a "dominant channel".
In an alternative embodiment, step S120 specifically includes:
s121, responding to a first preset potential level input from the outside.
Alternatively, the first preset potential level input from the outside may be a potential value input in advance by the operator, and the potential detecting device may be specifically used to respond to the first preset potential level input from the outside, and of course, other detecting devices may also be used, which is not limited herein. The first preset potential level herein refers to a preset potential of the groundwater extracted at the first preset position, that is, a potential threshold, and the potential may be specifically a voltage or a current, which is not limited herein. Optionally, the first preset potential level may be five times or more of the potential level in the initial state, or may be flexibly selected according to circumstances, which is not particularly limited in the embodiment of the present application.
S122, extracting the underground water from the first preset position, and carrying out water restoration operation on the underground water.
S123, detecting a first potential level of the groundwater extracted at the first preset position.
Alternatively, a potential detecting device may be employed to detect a first potential level of the groundwater extracted at the first preset location.
S124, judging whether the first potential level is greater than or equal to a first preset potential level, if so, stopping the extraction action.
In the scheme, a first preset potential level input by the outside is responded, then, the groundwater is extracted from a first preset position, the groundwater is subjected to restoration operation, meanwhile, the first potential level of the groundwater extracted from the first preset position is detected, whether the first potential level is larger than or equal to the first preset potential level is judged, when the judgment result is yes, the fact that the groundwater after the water restoration operation is diffused to the first preset position is indicated, and the groundwater quality at the position is good.
In another alternative embodiment, step S410 further includes:
s420, detecting the flow of the groundwater injected into the first preset position in the step S410, and marking the flow as the first preset flow.
S430, detecting the first flow of the groundwater pumped at the first preset position in the step S210.
S440, judging whether the first preset flow is smaller than or equal to the first flow.
If the judgment result is yes, the first preset flow rate of the groundwater injected into the first preset position in the step S410 is increased and/or the first flow rate of the groundwater extracted from the first preset position in the step S210 is decreased.
If the determination result is no, the first preset flow rate of the groundwater injected into the first preset position in step S410 is decreased and/or the first flow rate of the groundwater extracted from the first preset position in step S210 is increased.
In the scheme, in the process of injecting groundwater after water remediation operation to a first preset position, whether the first preset flow is smaller than or equal to the first flow is needed to be judged, when the first preset flow is smaller than or equal to the first flow, the first preset flow is increased, namely, the flow of groundwater after water remediation operation injected to the first preset position in the balancing step is increased, or the first flow is reduced, namely, the flow of groundwater extracted from the first preset position in the extracting step is reduced, and the first preset flow and the first flow can be increased simultaneously, and the increasing and reducing amplitude can be different at the moment; when the first preset flow is greater than the first flow, the first preset flow is reduced, that is, the flow of groundwater after the water restoration operation injected into the first preset position in the balancing step is reduced, or the first flow is increased, that is, the flow of groundwater extracted from the first preset position in the extracting step is increased, and of course, the first preset flow and the first flow can be reduced at the same time, and the increasing and reducing magnitudes can be different at the same time, so that the flow of groundwater extracted from the first preset position and the flow of groundwater after the injected water restoration operation are balanced, and the groundwater is maintained in a dynamic balance state.
In yet another alternative embodiment, step S210 further includes:
s220, responding to the first low liquid level input from the outside.
S230, detecting a first liquid level of the underground water at a first preset position.
Alternatively, a flow meter may be employed to detect a first level of groundwater at a first preset location.
S240, judging whether the first liquid level is smaller than or equal to the first low liquid level, and if so, stopping pumping the underground water at the first preset position.
In the scheme, by detecting the first liquid level of the groundwater at the first preset position, when the first liquid level is smaller than or equal to the first low liquid level, the groundwater at the first preset position is stopped being pumped, so that the water level of the groundwater at the first preset position is prevented from being too low, and a dominant channel is further prevented from being formed.
In yet another alternative embodiment, step S410 further includes:
s470, judging whether the groundwater pumping from the first preset position is started, if so, starting the groundwater pumping after the water restoration operation is started to be injected into the first preset position.
And S480, if the judgment result is negative, stopping the groundwater injection after the water restoration operation is performed, and injecting the groundwater into the first preset position.
In the scheme, when the pumping of the underground water is started at a first preset position, the underground water subjected to the water restoration operation is simultaneously called to be injected into the first preset position; and when the pumping of the underground water is stopped at the first preset position, the underground water after the water restoration operation is stopped to be injected into the first preset position. That is, at the first preset position, the extraction of the groundwater and the restoration of the injected water may be performed simultaneously, so that the groundwater at the first position is maintained in dynamic balance, thereby further avoiding the formation of a "dominant channel".
In yet another alternative embodiment, step S410 further includes:
s491, judging whether the pumping of the underground water from the first preset position is started, if so, stopping the underground water injection after the water-transferring repair operation to the first preset position.
S492, if the judgment result is negative, the groundwater after the water restoration operation is started to be called is injected into the first preset position.
In the scheme, when the pumping of the underground water is started at the first preset position, the underground water after the water-transferring repair operation is stopped to be injected into the first preset position; and when the pumping of the underground water is stopped at the first preset position, the underground water after the water restoration operation is started to be adjusted is injected into the first preset position. That is, at the first preset position, only one item of groundwater is extracted and groundwater after the injected water repair operation is performed at the same time, so that groundwater after the injected water repair operation is prevented from being extracted in a short time, and further the working efficiency of groundwater repair is improved.
In an alternative embodiment, the groundwater remediation method further comprises:
s510, traversing, namely marking all preset positions which have been subjected to the step S310, and ensuring that the step S310 is not repeated for more than N times at the same preset position.
Here, N is an integer greater than or equal to 1, and N is externally input, for example, may be input by an operator.
In the scheme, all the preset positions which have been subjected to the extraction step are marked, so that the fact that the extraction step is not repeated for more than N times at the same preset position is ensured, meanwhile, the fact that the extraction step is not performed at the respective preset position is omitted can be avoided, and further uniformity and working efficiency of groundwater remediation operation are improved.
In another alternative embodiment, step S410 further includes:
s460, judging whether the second preset position meets the condition of the starting step S210, and if so, calling the underground water which comes from the second preset position and completes the water restoration operation to the first preset position.
In the scheme, extraction-injection operations are alternately performed between the first preset position and the second preset position to form a group, and multiple groups can be started simultaneously in the repairing process, so that the groundwater repairing efficiency is improved, and the groundwater repairing device is convenient to control. Further, since the extraction-injection function is alternately performed for each two preset positions for one group, and the repair dead zone may exist in the area between the adjacent groups, the overall groundwater repair is improved by alternately performing the extraction-injection function between the adjacent groups. It should be noted that the extraction-injection functions between adjacent groups and between each group may be performed sequentially, so as to avoid mutual interference.
Of course, the above embodiment may also be a group of every three preset positions, and if two of the three preset positions implement the extraction function and one of the three preset positions implement the injection function, the load of the injection well pipe 300 will be excessive; if two of the three preset positions fulfill the injection function and one of them fulfills the extraction function, this will result in an overload of the extraction well pipe 200, which shortens the service life of the device. This arrangement is therefore not as good as a set of alternate pump-pump functions for every two preset positions.
It should be noted that, in the above embodiment, the alternation time of the extraction-injection function between the first preset position and the second preset position may be 1 to 7 days, and of course, may be flexibly selected according to the actual situation, which is not particularly limited herein.
In addition, in the above embodiment, after one of the first preset position and the second preset position stops the extraction, the other one of the first preset position and the second preset position may be started after a period of time, so that the material in the groundwater after the water repair operation reacts with the organic pollutant for a period of time and then is extracted, thereby improving the utilization rate of the material.
Optionally, in any embodiment above, the groundwater remediation method further includes:
s610, a sorting step, which is used for sorting all preset positions, and sequentially carrying out step S210 according to the sorting.
In this scheme, specifically, all the wellbores 700 to be treated with water can be selected in the area of organically polluted groundwater, ordered and numbered, then all the numbered wellbores 700 are marked as preset positions, and each wellbore 700 is matched with at most two neighboring wellbores 700 closest to the position of each wellbore 700 so as to facilitate control.
Optionally, the plurality of wellbores 700 are provided with the extraction wellbore 200 and the injection wellbore 300, the plurality of wellbores 700 include a first wellbore 710, a second wellbore 720 and a third wellbore 730, the groundwater extracted by the extraction wellbore 200 in the first wellbore 710 can be injected into the injection wellbore 300 in the second wellbore 720, the groundwater extracted by the extraction wellbore 200 in the second wellbore 720 can be injected into the injection wellbore 300 in the third wellbore 730, and of course, the plurality of the extraction wellbore 700 can also include a fourth wellbore, a fifth wellbore and the like, and the groundwater extracted by the extraction wellbore 200 in each wellbore 700 is sequentially injected into the adjacent wellbore 700.
As shown in fig. 1 to 5, according to the groundwater remediation method provided by the embodiment of the application, the embodiment of the application further provides a groundwater remediation system, which includes at least one water treatment device 100, at least one extraction well pipe 200, at least one injection well pipe 300 and a driving module 400, wherein the at least one water treatment device 100 is used for performing a water remediation action to restore contaminated groundwater to original water quality; at least one extraction well pipe 200 for extracting groundwater, the extraction well pipe 200 being in communication with an input of the water treatment device 100, such that groundwater extracted by the extraction well pipe 200 is introduced into the water treatment device 100; at least one injection well pipe 300 for injecting groundwater after water remediation operation, the injection well pipe 300 being in communication with a discharge end of the water treatment apparatus 100 such that groundwater after water remediation operation in the water treatment apparatus 100 is introduced into the injection well pipe 300; the drive module 400 is disposed in at least one of the injection well casing 300 or the extraction well casing 200 for driving fluid flow within the injection well casing 300 or the extraction well casing 200.
Optionally, the extraction well pipe 200 and the part of the injection well pipe 300 extending into the ground are each provided with an open screen section 210, at least part of the open screen section 210 being located in the groundwater so that the groundwater enters the extraction well pipe 200 more rapidly, and the groundwater after the water remediation operation in the injection well pipe 300 is diffused into the organically polluted groundwater more rapidly. Alternatively, the driving module 400 may be a submersible pump, which may be disposed inside the extraction well pipe 200 or the injection well pipe 300, although the driving module 400 may be other power devices, and embodiments of the present application are not limited in particular.
In the embodiment of the present application, at least one extraction well pipe 200 and at least one injection well pipe 300 are both in communication with the water treatment apparatus 100, and when the driving module 400 is operated, groundwater extracted by the extraction well pipe 200 is treated by the water treatment apparatus 100 and then injected into groundwater through the injection well pipe 300, thereby repairing organically-polluted groundwater at the location of the extraction well pipe 200. At the same time, the groundwater after the water remediation operation is injected into the ground through the injection well pipe 300 so that the groundwater is in a dynamic balance state, thereby avoiding the formation of "dominant channels" of groundwater in the region where the extraction well pipe 200 is located.
Alternatively, each of the extraction well pipes 200 and each of the injection well pipes 300 in the above-described aspects may share a single set of the water treatment apparatus 100 to improve the utility of the device and save the cost of the device; of course, the number of the water treatment apparatuses 100 may be at least two, and in this case, a part of the extraction well pipes 200 and a part of the injection well pipes 300 may share one water treatment apparatus 100, or one water treatment apparatus 100 may be used for each of the extraction well pipes 200 and each of the injection well pipes 300, so as to improve the surface water treatment efficiency.
In an alternative embodiment, the groundwater remediation system further comprises a configuration module 500, the configuration module 500 being disposed in at least one of the injection well pipe 300 or the extraction well pipe 200 for injecting material into a fluid within the injection well pipe 300 or the extraction well pipe 200. Optionally, when the configuration module 500 is disposed on the injection well pipe 300, the configuration module 500 is used to inject a material into the fluid flowing out of the water treatment apparatus 100, and the material enters the groundwater through the injection well pipe 300 together with the fluid and diffuses, so as to degrade organic pollutants in the groundwater; alternatively, when the configuration module 500 is disposed in the extraction well pipe 200, the configuration module 500 is used to inject a material into the groundwater extracted by the extraction well pipe 200, the material may be used to degrade organic contaminants in the groundwater, then further water remediation operations are performed by the water treatment device 100, and finally the groundwater is injected through the injection well pipe 300. Optionally, the material may be an oxidizing agent or a reducing agent, such as hydrogen peroxide, sodium persulfate, potassium permanganate, and the like, which is not particularly limited in the embodiment of the present application. Optionally, a stirring structure may be disposed in the configuration module 500, and the stirring structure is driven by a motor to move, so as to improve the mixing uniformity of the materials and the groundwater in the configuration module 500.
In an alternative embodiment, the extraction well pipe 200 is provided with a potential detection device 610, the potential detection device 610 being arranged to detect a potential level in groundwater in the extraction well pipe 200. The injection well pipe 300 is provided with a solenoid valve 620, and the solenoid valve 620 is used for controlling whether groundwater after water remediation operation is introduced into the injection well pipe 300. In the case that the potential detected by the potential detecting device 610 is greater than the first preset potential level, it indicates that the groundwater injected into the injection well pipe 300 has diffused into the area where the extraction well pipe 200 is located, and the content of organic pollutants in the groundwater in the area is low, at this time, the driving module 400 is turned off, and the extraction well pipe 200 stops continuously extracting the groundwater, so that the occurrence of a "dominant channel" of the groundwater in the area where the extraction well pipe 200 is located is avoided, and the groundwater remediation efficiency is low.
In yet another alternative embodiment, the water treatment apparatus 100 comprises a spray device 110 and at least one blower 120, wherein the spray device 110 comprises a spray bin 111 and at least one nozzle 112 disposed at a top of the spray bin 111, the nozzle 112 being in communication with the extraction well pipe 200 such that the nozzle 112 sprays groundwater extracted by the extraction well pipe 200 through the nozzle 112 into the spray bin 111. Blower 120 is disposed within spray booth 111. In this scheme, the air blown by the blower 120 forcibly blows out the volatile organic compounds in the water mist in the spray bin 111 to perform preliminary treatment, and the blower 120 is used for improving the circulation efficiency of groundwater.
Alternatively, the exhaust gas in the spraying device 110 may be directly discharged; or, the water treatment device 100 is provided with a gas treatment module 140 for cleaning gas at a position corresponding to the top of the spray bin 111, so that the waste gas in the spray bin 111 is discharged after being treated, thereby reducing environmental pollution. Optionally, the gas treatment module 140 includes a first activated carbon adsorption tank 141 and an induced draft fan 142, an air inlet of the first activated carbon adsorption tank 141 is communicated with an air outlet of the spray bin 111, and an air inlet of the induced draft fan 142 is communicated with an air outlet of the first activated carbon adsorption tank 141. The waste gas in the spraying bin 111 is sucked into the first activated carbon adsorption box 141 through the induced draft fan 142 for adsorption treatment, and is discharged after reaching the standard.
Optionally, a purification module 150 for purifying water is disposed at a position of the water treatment device 100 corresponding to the bottom of the spray bin 111, and the purification module 150 has functions of adjusting Ph, fenton oxidation, flocculation precipitation, and the like, so as to degrade organic pollutants in groundwater. Alternatively, the purification module 150 may be a chemical storage tank, where a liquid inlet of the chemical storage tank is connected to a liquid outlet of the spraying device 110, and the liquid outlet of the chemical storage tank is connected to the injection well pipe 300, so that the groundwater treated by the purification module 150 is injected into the ground through the injection well pipe 300. Further alternatively, a plurality of stirring structures are provided in the purification module 150, and each stirring structure is driven to move by a motor, so that the mixing uniformity of the medicament in the purification module 150 and the underground water is improved, and the efficiency of degrading organic pollutants by the medicament in the purification module 150 is improved.
In a further alternative embodiment, the water treatment apparatus 100 further includes a first water pump 160 and a second activated carbon adsorption tank 170, wherein the liquid outlet of the purification module 150 is connected to the liquid inlet of the second activated carbon adsorption tank 170 through the first water pump 160, and the liquid outlet of the second activated carbon adsorption tank 170 is connected to the liquid inlet of the configuration module 500. The fluid in the purification module 150 is introduced into the second activated carbon adsorption tank 170 through the first water pump 160 to adsorb the remaining organic matters in the fluid, and then introduced into the configuration module 500 to configure the materials according to a certain ratio, so that the embodiment can improve the treatment effect of repairing the groundwater.
Optionally, the groundwater remediation system further includes a second water pump 900, and the configuration module 500 is communicated with the injection well pipe 300 through the second water pump 900, so that a fluid configured with a certain proportion of materials is pumped into the injection well pipe 300, and the materials diffuse after entering groundwater and undergo oxidation-reduction reaction with organic matters in the groundwater, so that organic pollutants in the groundwater are degraded.
Optionally, the extraction well pipe 200 and/or the injection well pipe 300 of any of the embodiments described above is provided with a flow meter 630. The flow meter 630 on the extraction well pipe 200 is used for detecting the fluid flow rate in the extraction well pipe 200, the flow meter 630 on the injection well pipe 300 is used for detecting the fluid flow rate in the injection well pipe 300, when the flow rate value detected by the flow meter 630 on the extraction well pipe 200 is larger than a first preset value or when the flow rate value detected by the flow meter 630 on the injection well pipe 300 is smaller than or equal to a second preset value, it is indicated that more fluid is stored in the water treatment device 100, and at this time, the fluid flow rate in the extraction well pipe 200 needs to be reduced, for example, the power level of the driving module 400 can be adjusted, etc. When the flow rate detected by the flow meter 630 on the extraction well pipe 200 is less than or equal to the first preset value or when the flow rate detected by the flow meter 630 on the injection well pipe 300 is greater than the second preset value, it indicates that the fluid in the water treatment apparatus 100 is in a dynamic equilibrium state, and the inflow fluid flow rate and the outflow fluid flow rate are approximately equal. When the flow meters 630 are disposed on the extraction well pipe 200 and the injection well pipe 300, the fluid flow rate in the extraction well pipe 200 and the fluid flow rate in the injection well pipe 300 can be accurately adjusted according to the difference between the flow rate value detected by the flow meters 630 on the extraction well pipe 200 and the flow rate value detected by the flow meters 630 on the injection well pipe 300, so that the fluid in the water treatment device 100 is in a dynamic balance state.
Further alternatively, the extraction well 200 is provided with a return well 640, the return well 640 being in communication with the extraction well 200, the return well 640 being provided with a regulating valve 650 for regulating and opening and closing the return well 640. The first end of the return well pipe 640 is communicated with the first end of the extraction well pipe 200, the regulating valve 650 is arranged at the first end of the return well pipe 640, the flowmeter 630 is electrically connected with the regulating valve 650, that is, the flowmeter 630 and the regulating valve 650 are linked, and the opening degree of the regulating valve 650 can be regulated according to the flow value detected by the flowmeter 630. When the flow rate detected by the flow meter 630 on the extraction well pipe 200 is greater than the first preset value or the flow rate detected by the flow meter 630 on the injection well pipe 300 is less than or equal to the second preset value, it is indicated that the flow rate of the injected water into the injection well pipe 300 is less, and at this time, the opening degree of the regulating valve 650 needs to be increased to increase the flow rate in the return well pipe 640, so that part of the groundwater extracted by the extraction well pipe 200 is returned to the extraction well pipe 200 through the return well pipe 640, and more fluid is prevented from being accumulated in the water treatment device 100. When the flow rate detected by the flow meter 630 on the extraction well pipe 200 is less than or equal to the first preset value or the flow rate detected by the flow meter 630 on the injection well pipe 300 is greater than the preset value, it indicates that the flow rate of the fluid injected into the injection well pipe 300 is greater, and at this time, the opening of the regulating valve 650 needs to be reduced to reduce the flow rate of the fluid in the return well pipe 640, so as to avoid the shortage of water supply in the water treatment device 100 and failing to meet the injection requirement of the injection well pipe 300. Therefore, in this embodiment, the flow meter 630 is linked with the adjusting valve 650, so that the opening of the adjusting valve 650 is precisely adjusted, so that the water flow rate flowing into the water treatment device 100 is consistent with the water flow rate flowing into the injection well pipe 300, and the operation stability of the whole groundwater remediation system is improved.
Optionally, when the flow meters 630 are disposed on the extraction well pipe 200 and the injection well pipe 300, each flow meter 630 is electrically connected to the adjusting valve 650, and the opening of the adjusting valve 650 can be adjusted according to the difference between the flow rate value detected by the flow meter 630 on the extraction well pipe 200 and the flow rate value detected by the flow meter 630 on the injection well pipe 300, so as to improve the adjustment accuracy of the adjusting valve 650, so as to further accurately match the water flow rate flowing into the water treatment device 100 with the water flow rate flowing into the injection well pipe 300.
As shown in fig. 1 to 5, according to the groundwater remediation system provided by the embodiment of the application, the embodiment of the application further provides a groundwater system, which includes a plurality of wellbores 700 and at least one water treatment device 100, wherein the wellbore 700 is provided with the extraction well pipe 200 and the injection well pipe 300 according to any of the embodiments described above. At least one water treatment device 100 is used to perform water remediation actions.
In an alternative embodiment, a first level gauge 810 is positioned within the wellbore 700 for feeding back the level information of the groundwater within the wellbore 700. The first liquid level meter 810 may be electrically connected to the driving module 400, that is, the first liquid level meter 810 is linked with the driving module 400, and the driving module 400 is closed when the liquid level detected by the first liquid level meter 810 is less than or equal to the low liquid level, so as to prevent the driving module 400 from being damaged due to no-load operation. It should be noted that, in this embodiment, when the liquid level detected by the first liquid level meter 810 reaches a low liquid level in the operation of the driving module 400, the driving module 400 is turned off until the liquid level of the groundwater in the well bore 700 rises to reach a high liquid level, which is detected by the first liquid level meter 810, and otherwise, the driving module 400 is easily turned on or off frequently to cause damage to the driving module 400. It should be noted that, the high liquid level and the low liquid level are both critical liquid levels, and the high liquid level is higher than the low liquid level.
Optionally, a second level gauge 820 is further disposed in the wellbore 700, the first end of the injection well pipe 300 is provided with an electromagnetic valve 620, the second level gauge 820 is electrically connected with the electromagnetic valve 620, when the liquid level in the wellbore 700 detected by the second level gauge 820 reaches a high level, the electromagnetic valve 620 is closed, and at this time, the injection function of the injection well pipe 300 is stopped, so that water in the wellbore 700 is prevented from overflowing the ground.
In an alternative embodiment, a portion of the plurality of wellbores 700 are sequentially spaced apart in a first direction and the extraction wellbore 200 and injection wellbore 300 in each wellbore 700 are alternately disposed in the first direction, another portion of the plurality of wellbores 700 are sequentially spaced apart in a second direction and the extraction wellbore 200 and injection wellbore 300 in each wellbore 700 are alternately disposed in the second direction, wherein the first direction is perpendicular to the second direction. At this time, the plurality of wellbores 700 are arranged in an array, so that the coverage area of the whole groundwater remediation system can be increased, and the comprehensiveness of groundwater remediation is improved. Alternatively, the extraction well pipe 200 and the injection well pipe 300 in the adjacent well bore 700 may be disposed opposite to each other, and when the material in the groundwater after the water remediation operation injected by the injection well pipe 300 is diffused around the injection well pipe 300, the material content in a part of the area is high, the material content in another part of the area is less, and even the material cannot be diffused. Based on this, in other embodiments, the extraction well pipe 200 and the injection well pipe 300 of the adjacent well bore 700 are arranged in a staggered manner, so as to avoid blind areas (i.e., areas where the materials cannot diffuse) occurring in the material diffusion, thereby improving the uniformity of the material diffusion, and further improving the integrity of the groundwater remediation.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.
Claims (11)
1. A groundwater remediation method, comprising:
an anchoring step for marking a first preset position;
an extraction step, which is used for extracting the groundwater at the first preset position to carry out water restoration operation;
an injection step, which is used for traversing all preset positions, selecting a second preset position and injecting the groundwater after the water restoration operation to the second preset position;
and a balancing step, wherein the balancing step is used for calling the groundwater after the water remediation operation to be injected into the first preset position.
2. The groundwater remediation method of claim 1, wherein the extracting step specifically comprises:
responding to a first preset potential level input from the outside;
extracting underground water from the first preset position, and carrying out water restoration operation on the underground water;
detecting a first potential level of the groundwater extracted at the first preset location;
and judging whether the first potential level is greater than or equal to the first preset potential level, and if so, stopping the extraction action.
3. The groundwater remediation method of claim 1, wherein the balancing step further comprises:
detecting the flow of the groundwater injected into the first preset position in the balancing step, and marking the flow as a first preset flow;
detecting a first flow rate of groundwater extracted at the first preset position in the extracting step;
judging whether the first preset flow is smaller than or equal to the first flow;
if the judgment result is that the first preset flow rate of the groundwater injected to the first preset position in the balancing step is increased and/or the first flow rate of the groundwater extracted from the first preset position in the extracting step is reduced;
if not, reducing the first preset flow rate of the groundwater injected to the first preset position in the balancing step and/or increasing the first flow rate of the groundwater extracted from the first preset position in the extracting step.
4. The groundwater remediation method of claim 1 wherein the extracting step further comprises:
a first low liquid level responsive to an external input;
detecting a first liquid level of the groundwater at the first preset position;
and judging whether the first liquid level is smaller than or equal to the first low liquid level, and if so, stopping pumping the underground water at the first preset position.
5. The groundwater remediation method of claim 1, wherein the balancing step further comprises:
judging whether the groundwater is started to be pumped from the first preset position or not, if so, starting to call the groundwater after the water restoration operation to be injected into the first preset position;
if the result is negative, stopping the groundwater injection after the water restoration operation is invoked to the first preset position.
6. The groundwater remediation method of claim 1, wherein the balancing step further comprises:
judging whether the groundwater is started to be pumped from the first preset position or not, if so, stopping the groundwater after invoking the water restoration operation from being injected into the first preset position;
if not, starting to call the groundwater after the water remediation operation to be injected into the first preset position.
7. The groundwater remediation method of claim 1, further comprising:
and a traversing step, which is used for marking all preset positions which have been subjected to the extracting step, and ensuring that the extracting step is not repeated for more than N times at the same preset position.
8. The groundwater remediation method of claim 1, wherein the balancing step further comprises:
and judging whether the second preset position meets the condition for starting the extraction step or not, if so, calling the groundwater which is sourced from the second preset position and is subjected to the water restoration operation to the first preset position.
9. The groundwater remediation method of any one of claims 1 to 8, further comprising:
a sorting step, which is used for sorting all preset positions and sequentially carrying out the extraction step according to the sorting.
10. A groundwater remediation system, comprising:
at least one water treatment device (100) for performing a water remediation action;
-at least one extraction well pipe (200) for extracting groundwater, the extraction well pipe (200) being in communication with an input of the water treatment device (100);
at least one injection well pipe (300) for injecting groundwater after a water remediation operation, the injection well pipe (300) being in communication with a discharge end of the water treatment device (100);
a drive module (400) arranged at least one of the injection well pipe (300) or the extraction well pipe (200) for driving the fluid flow in the injection well pipe (300) or the extraction well pipe (200).
11. A groundwater system, comprising:
a plurality of wellbores (700), each of the wellbores (700) having provided therein an extraction wellbore (200) and an injection wellbore (300) as claimed in claim 10;
at least one water treatment device (100) for performing a water remediation action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310421074.1A CN116750903A (en) | 2023-04-14 | 2023-04-14 | Groundwater remediation method, groundwater remediation system and groundwater system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310421074.1A CN116750903A (en) | 2023-04-14 | 2023-04-14 | Groundwater remediation method, groundwater remediation system and groundwater system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116750903A true CN116750903A (en) | 2023-09-15 |
Family
ID=87955962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310421074.1A Pending CN116750903A (en) | 2023-04-14 | 2023-04-14 | Groundwater remediation method, groundwater remediation system and groundwater system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116750903A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117772766A (en) * | 2024-02-28 | 2024-03-29 | 上海环境保护有限公司 | Pulse-assisted multiphase extraction system and application thereof |
-
2023
- 2023-04-14 CN CN202310421074.1A patent/CN116750903A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117772766A (en) * | 2024-02-28 | 2024-03-29 | 上海环境保护有限公司 | Pulse-assisted multiphase extraction system and application thereof |
| CN117772766B (en) * | 2024-02-28 | 2024-05-07 | 上海环境保护有限公司 | Pulse-assisted multiphase extraction system and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN116750903A (en) | Groundwater remediation method, groundwater remediation system and groundwater system | |
| CN109127689B (en) | Organic contaminated site in-situ oxidation and circulating well combined repairing system | |
| CN208883659U (en) | A kind of combined soil ground water circulation processing unit | |
| CN202968311U (en) | Water treatment system | |
| CN102774965A (en) | In-situ repair system for treating pollution of underground water | |
| CN103359806A (en) | Process for treating wastewater by using electrochemical equipment | |
| CN110064646B (en) | Mobile integrated soil remediation system | |
| CN109127698B (en) | Contaminated site normal position repair system | |
| CN113182335A (en) | Extraction driving in-situ oxidation repair system | |
| CN110127945B (en) | Method and system for synchronously restoring soil and underground water in organic pollution site in situ | |
| CN111451267B (en) | Electrochemical in-situ automatic control contaminated site remediation system and method | |
| CN106830579B (en) | For volatile organic contaminant repair system and method in underground water | |
| EP1218120B1 (en) | Method and device for sanitizing contaminated ground water | |
| CN219217582U (en) | Efficient groundwater circulation well repair system | |
| CN107337327A (en) | A kind of integrated sewage treatment device | |
| CN218435217U (en) | Circulating well repairing system for treating organic matters in polluted underground water | |
| CN114751472A (en) | Underground water circulating well device for in-situ remediation of contaminated site and remediation method | |
| CN217025469U (en) | Gallery type reaction chamber type underground water circulating well | |
| CN112551799B (en) | Underground water pollution treatment strengthening treatment device and treatment method | |
| CN114345920A (en) | Method for in-situ remediation of organophosphorus pesticide contaminated soil through alkaline hydrolysis-oxidation synergistic technology | |
| CN211255442U (en) | Long-acting repair system for pollution control site in water-deficient area | |
| CN206580626U (en) | Multifunction waste water regulating pool | |
| CN117486354B (en) | Non-homogeneous aquifer self-cleaning type groundwater chromium pollution removal system and method | |
| CN205856037U (en) | A kind of atomising device in continuous processing subsoil water in volatile organic matter complete set of equipments | |
| CN117259412A (en) | Management and control method for pollution risk of underground water of nonferrous smelting site |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |