CN213337593U - Well group system for underground water pollution diffusion early warning - Google Patents
Well group system for underground water pollution diffusion early warning Download PDFInfo
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- CN213337593U CN213337593U CN202022538549.XU CN202022538549U CN213337593U CN 213337593 U CN213337593 U CN 213337593U CN 202022538549 U CN202022538549 U CN 202022538549U CN 213337593 U CN213337593 U CN 213337593U
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Abstract
The utility model discloses a well crowd system of groundwater pollution diffusion early warning, include: the monitoring well subgroups are arranged outside the pollution control range in a surrounding mode and are used for forming monitoring barriers outside the pollution control range, and the monitoring well subgroups comprise M first monitoring wells, N second monitoring wells and O third monitoring wells; the first monitoring well is positioned in the upstream direction of the flow direction of underground water, the second monitoring well is positioned in the vertical direction of the flow direction of the underground water, and the third monitoring well is positioned in the parallel downstream direction of the flow direction of the underground water; the circulating well subgroup is arranged outside the monitoring barrier in a surrounding mode and used for forming a pollutant migration barrier outside the monitoring barrier, and comprises P first circulating wells and Q second circulating wells, wherein the first circulating wells are located in the vertical direction of the flowing direction of the underground water, and the second circulating wells are located in the parallel downstream direction of the flowing direction of the underground water; the control assembly is connected with the monitoring well subgroup and the circulating well subgroup; the well group system realizes risk control of groundwater pollutant diffusion.
Description
Technical Field
The utility model relates to a groundwater pollution administers technical field, especially relates to a well crowd system of groundwater pollution diffusion early warning.
Background
Underground water is a valuable resource for the development of people life and society. In recent years, the risk of groundwater pollution is increased due to long-term production in industries such as chemical engineering and metallurgical enterprises. The distribution of groundwater pollution is generally diffused in a fan shape along the flow direction of groundwater from a pollution source, and the groundwater pollution has a self-attenuation trend along with time under the condition of no continuous pollution source. And the groundwater pollution mobility is strong, the burial depth is deeper, and the repair cost of groundwater pollution repair technologies such as pumping, injection and the like which are mature at the present stage is higher.
The existing circulating well repairing technology is applied, underground water circulation is formed through the water pumping and returning actions of underground water, and the diffusion of pollutants is effectively controlled while the pollutants in the underground water are removed by combining various pollution removal technologies. However, the current circulating well technology or other underground water pollution remediation technologies such as pumping, injection and the like lack risk control on the diffusion and change conditions of the current underground water pollution plume, cannot timely treat the current underground water pollution diffusion, and causes the problem of untimely pollution control; if the pollution abatement equipment is continuously started, unnecessary abatement cost is generated.
SUMMERY OF THE UTILITY MODEL
The utility model provides a well crowd system of groundwater pollution diffusion early warning to solve or partially solve present groundwater pollution and administer the field and lack pollution diffusion early warning management and control, can not in time pollute the technical problem who administers.
In order to solve the technical problem, the utility model provides a well crowd system of groundwater pollution diffusion early warning, include:
the monitoring well subgroups are arranged outside the pollution control range in a surrounding mode and are used for forming monitoring barriers outside the pollution control range; the monitoring well subgroup comprises M first monitoring wells, N second monitoring wells and O third monitoring wells; the first monitoring well is positioned in the upstream direction of the flow direction of underground water, the second monitoring well is positioned in the vertical direction of the flow direction of the underground water, the third monitoring well is positioned in the parallel downstream direction of the flow direction of the underground water, M is more than or equal to 1, N is more than or equal to 2, and O is more than or equal to 2;
the circulating well subgroup is arranged outside the monitoring barrier in a surrounding mode and is used for forming a pollutant migration barrier outside the monitoring barrier; the circulating well sub-group comprises P first circulating wells and Q second circulating wells, the first circulating wells are positioned in the vertical direction of the flowing direction of the underground water, and the second circulating wells are positioned in the parallel downstream direction of the flowing direction of the underground water; p is more than or equal to 2, and Q is more than or equal to 2;
the control assembly is connected with the monitoring well subgroup and the circulating well subgroup and is used for controlling the monitoring well subgroup to detect the water quality parameters and the water flow parameters of underground water; and for controlling the opening or closing of the circulation well sub-group.
Optionally, the second circulation well is arranged at a higher density than the first circulation well.
Optionally, the third monitoring wells are arranged at a higher density than the second monitoring wells.
Optionally, the distance between the first monitoring well and the boundary of the pollution plume of the groundwater is 30-50 meters.
Optionally, the distance between the second monitoring well and the third monitoring well and the boundary of the pollution control range is 3-10 meters.
Optionally, the distance between any monitoring well in the monitoring well subgroups and the boundary of the pollutant migration barrier is 20-50 meters.
Optionally, the distance between any two adjacent circulating wells in the circulating well subgroup is 20-50 m.
Optionally, a water quality monitoring mechanism is arranged at a preset well water level of the monitoring well.
Further, the water quality monitoring mechanism comprises at least one of a water quality detection probe, a passive diffusion bag PDB and a Beller tube.
Furthermore, the water quality monitoring mechanism comprises a first detection unit located within one meter of the well water level and a second detection unit located below one meter of the well water level.
Through the utility model discloses an one or more technical scheme, the utility model has following beneficial effect or advantage:
the utility model provides a well group system for underground water pollution diffusion early warning, which forms a pollutant monitoring barrier through a monitoring well subgroup arranged outside a pollution control range; the control assembly controls a circulation well subgroup arranged on the periphery of the monitoring well subgroup to be started when judging that the pollutants have migration and diffusion to a certain degree according to the pollutant inspection result, and a pollutant migration barrier is formed by the circulation of underground water of the circulation well to prevent the pollutants from migrating and diffusing; through the function cooperation of above-mentioned monitoring well crowd and circulation well crowd, can carry out the risk assessment according to the measured data very first time when detecting groundwater quality of water parameter change to control circulation well crowd forms effectual pollutant migration barrier, forms the risk management and control mode of groundwater pollutant diffusion.
Drawings
Fig. 1 is a schematic distribution diagram of a well group system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an apparatus of a well cluster system according to an embodiment of the present invention;
description of reference numerals:
1. monitoring a well subgroup; 11. a first monitoring well; 12. a second monitoring well; 13. a third monitoring well; 14. monitoring the barrier; 2. circulating the well subgroup; 21. a first circulation well; 22. a second circulation well; 23. a contaminant migration barrier; 3. and a control component.
Detailed Description
In order to make the technical personnel in the technical field of the present invention understand the present invention more clearly, the following description is made in detail for the technical solution of the present invention through the specific embodiments with reference to the attached drawings. Throughout the specification, unless otherwise specifically noted, terms used herein should be understood as having meanings as commonly used in the art. Accordingly, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. If there is a conflict, the present specification will control. Unless otherwise specifically stated, various devices and the like used in the present invention are commercially available or can be prepared by an existing method.
In order to solve the lack of the current groundwater pollution diffusion warning mechanism, in an alternative embodiment, as shown in fig. 1 to 2, a well group system for groundwater pollution diffusion warning is provided, which includes:
the monitoring well subgroup 1 is arranged outside the pollution control range in a surrounding mode and is used for forming a monitoring barrier 14 outside the pollution control range; the monitoring well subgroup 1 comprises M first monitoring wells 11, N second monitoring wells 12 and O third monitoring wells 13; the first monitoring well 11 is positioned in the upstream direction of the flow direction of underground water, the second monitoring well 12 is positioned in the vertical direction of the flow direction of the underground water, the third monitoring well 13 is positioned in the parallel downstream direction of the flow direction of the underground water, M is more than or equal to 1, N is more than or equal to 2, and O is more than or equal to 2;
a circulation well subgroup 2 disposed circumferentially outside the monitoring barrier 14 for forming a contaminant migration barrier 23 outside the monitoring barrier 14; the circulation well subgroup 2 comprises P first circulation wells 21 and Q second circulation wells 22, wherein the first circulation wells 21 are positioned in the direction vertical to the flow direction of the groundwater, and the second circulation wells 22 are positioned in the direction parallel to the flow direction of the groundwater; p is more than or equal to 2, and Q is more than or equal to 2;
the control assembly 3 is connected with the monitoring well subgroup 1 and the circulating well subgroup 2 and is used for controlling the monitoring well subgroup 1 to detect the water quality parameters and the water flow parameters of underground water; and controlling the circulation well subgroup 2 to be opened or closed according to the water quality parameter and the water flow parameter.
Generally speaking, the embodiment provides a groundwater pollution diffusion early warning well group system taking pollution control as a main measure, a well group system consisting of a monitoring well subgroup 1 and a circulating well subgroup 2 can realize risk control of existing polluted groundwater pollution plumes, and can also be used as a groundwater pollution early warning system of a long-term production unit, and when the pollution plumes are diffused beyond the standard, the circulating well can be controlled to be opened at the first time to form a circulating water control barrier, which is also called as a pollutant migration barrier 23. According to the characteristics of the underground water circulating well structure and the applicability, the technology is suitable for underground water pollution and has certain thickness, and most regional aquifers of the site pollute the site for high-permeability strata.
The pollution control range in the embodiment is a pollution control range determined in advance according to the specific situation and the control requirement of the groundwater in the field, and the pollution level of the groundwater within the pollution control range should be controlled within the planned requirement. The monitoring well subgroup 1 provided by the embodiment is arranged outside the boundary of the pollution control range and is used for detecting the groundwater quality parameters and the water flow parameters at the boundary of the pollution control range.
The monitoring well subgroups 1 in this embodiment are divided into three types as shown in fig. 1, a first monitoring well 11 is an upstream monitoring well, a second monitoring well 12 is a monitoring well in the direction of groundwater flow vertical, and a third monitoring well 13 is a monitoring well in the direction of groundwater flow downstream. The vertical direction of the underground water flow refers to the second monitoring wells 12 distributed at the opposite sides of the pollution control range, and the connecting line between the second monitoring wells 12 is basically vertical to the flow direction of the underground water. All monitoring wells form a ring of monitoring barriers 14 surrounding the outside of the pollution control range for monitoring water quality parameters and water flow parameters at the barriers 14.
Specifically, the monitoring well can use a PVC well pipe with the diameter of 100-250 mm. Optionally, a water quality monitoring mechanism is arranged at a preset water level of the monitoring well. Specifically, the well pipe is provided with sieve pores in the underground water burial depth range, and monitoring sampling points are arranged at different depths of underground water in the monitoring well. The monitoring well monitors parameters such as pollutant concentration, groundwater level and groundwater flow direction in real time and transmits a detection result to the control component 3.
Optionally, the water quality monitoring mechanism comprises a first detection unit located within one meter of the well water level and a second detection unit located below one meter of the well water level. For example, surface water sampling detection points are arranged in an area within 1.0m below the well water level, and sampling detection points can be arranged in areas below 1m at different spacing distances of 2m, 5m, 10m and the like according to the three-dimensional dynamic pollutant migration requirement.
Optionally, the water quality monitoring mechanism comprises at least one of a water quality detection probe, a passive diffusion bag PDB and a belleville tube. The water quality monitoring mechanism comprises a common detection probe, such as pH value detection, mineral element detection, microorganism detection and the like. For some projects that do not allow direct testing downhole, requiring collection of test water samples to a laboratory, passive diffusion band PDB or belleville tubes may be used. Taking PDB as an example, it belongs to a passive sampler, and is used to collect Volatile Organic Compounds (VOCs) in water for laboratory analysis.
The control component 3 in the embodiment performs comparison statistical analysis on the monitoring result data and the synchronous data of the early-stage field investigation and monitoring system, judges whether the pollutant migration risk exists or not, and starts or adjusts the circulation key parameter setting of the underground water circulation well according to the risk degree.
The circulation well subgroup 2 in this embodiment is distributed outside the monitoring barrier 14 formed by the monitoring well subgroup 1. The control component 3 performs data analysis according to the monitoring results of the monitoring well subgroup 1, then starts the circulating well, and can form an effective hydraulic barrier by adjusting the opening and closing of the circulating well and the circulating water quantity and adopting a reasonable circulating period; as shown in fig. 1, each circulation well is surrounded by a range of influence indicated by a dotted line, and the range is the range of hydraulic barriers formed by the circulation wells, and the hydraulic barriers of all the circulation wells together form a pollutant migration barrier 23, which prevents pollutants from migrating downstream and within a pollution control range. Specifically, the circulation well in the circulation well subgroup 2 sets up the sieve mesh of the different degree of depth with the aquifer well pipe in the design, and middle separation ware separation is extracted groundwater to the well from a sieve section through the immersible pump, is discharged by another sieve section again to the aquifer around the well has produced three-dimensional groundwater circulating flow. The construction of the circulation well is directly referred to the products already used in the prior art.
For the distribution shapes of the circulation well subgroup 2 and the monitoring well subgroup 1 in the present embodiment, an alternative manner is as follows:
for the monitoring well subgroup 1, optionally, the third monitoring wells 13 are arranged at a higher density than the second monitoring wells 12.
Specifically, aiming at the existing underground water pollution area, the number of monitoring wells is sequentially increased in the upstream direction of the underground water flow of the pollution plume, the parallel downstream direction of the vertical direction of the underground water flow and the underground water flow. More monitoring wells are placed in a downstream direction parallel to the groundwater flow direction, requiring higher monitoring density and the discovery of migration or diffusion of contaminants.
Optionally, the distance from the first monitoring well 11 to the boundary of the pollution plume of the groundwater is 30-50 meters, and background values of various parameters of the groundwater in the region can be obtained to reflect the quality of the groundwater in the region.
Optionally, the distance between the second monitoring well 12 and the third monitoring well 13 and the boundary of the pollution control range is 3-10 meters. The vertical underground water flow direction monitoring well and the underground water flow direction downstream monitoring well monitor the change of pollutant concentration, underground water level, underground water flow speed and the like in real time, and whether the pollutants in the underground water are diffused or not can be confirmed.
Optionally, the distance between any monitoring well in the monitoring well subgroup 1 and the boundary of the pollutant migration barrier 23 is 20-50 meters. Wherein the boundary here is the outer boundary of the contaminant migration barrier 23. The reason for controlling the distance between the monitoring wells and the contaminant migration barriers 23 to the above range is to ensure that the circulation well subgroup 2 obtains the necessary response time to form effective contaminant migration barriers 23.
For the circulation well subgroup 2, the second circulation wells 22 are arranged at a higher density than the first circulation wells 21; the higher density of circulation wells in the downstream direction parallel to the groundwater flow direction is to form a more complete contaminant migration barrier 23 to prevent the contaminants from diffusing downstream.
The interval of the circulating wells is influenced by parameters such as depth of water-bearing stratum, geological condition, influence radius of the circulating wells and the like. According to mass production practices: optionally, the distance between any two adjacent circulating wells in the circulating well subgroup 2 is 20-50 m. Wherein, the interval range between the first circulation wells 21 is on the upper limit, and the interval range between the second circulation wells 22 is on the lower limit.
Generally speaking, the well group system provided by the embodiment can be used for early warning of the pollution of the existing factory underground water. The underground water monitoring wells and the underground water circulating wells are arranged in a mode that the number of the underground water flow direction is gradually increased upwards, in the vertical direction of the underground water flow direction and in the parallel downstream direction of the underground water flow direction in the boundary area by combining the factory production process and the field underground water flow direction and taking a factory boundary as a detection range. The first monitoring well positioned at the upstream can obtain background values of various parameters of underground water in the area where the factory is positioned, and the second monitoring well in the vertical direction and the third monitoring well in the downstream parallel direction are used for detecting data in real time, so that whether industrial production pollutes the underground water or not is ensured, and the production activities of the factory run safely. If the monitoring well detects that the concentration data of the pollutants rises, an auxiliary process is additionally arranged in the area downstream of the polluted process point, and the corresponding circulating well at the boundary is started to circulate underground water, so that a hydraulic barrier for the migration of the pollutants is formed, and the risk of migration and diffusion of the pollutants is prevented.
Through the monitoring well and the circulating well with different functions, technical synergies such as safety monitoring, pollution control and the like are realized, a well group with an anti-diffusion early warning function is formed, the purpose of underground water pollution control or plant area underground water pollution early warning is achieved, corresponding data can be collected to carry out risk assessment, and a data basis is provided for judging whether a repairing measure needs to be taken and what kind of repairing measure needs to be taken on the next step.
Through the utility model discloses an one or more technical scheme, the utility model has following beneficial effect or advantage:
the utility model provides a well group system for underground water pollution diffusion early warning, which forms a pollutant monitoring barrier through a monitoring well subgroup arranged outside a pollution control range; the control assembly controls a circulation well subgroup arranged on the periphery of the monitoring well subgroup to be started when judging that the pollutants have migration and diffusion to a certain degree according to the pollutant inspection result, and a pollutant migration barrier is formed by the circulation of underground water of the circulation well to prevent the pollutants from migrating and diffusing; through the function cooperation of above-mentioned monitoring well crowd and circulation well crowd, can carry out the risk assessment according to the measured data very first time when detecting groundwater quality of water parameter change to control circulation well crowd forms effectual pollutant migration barrier, forms the risk management and control mode of groundwater pollutant diffusion.
While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A well group system for underground water pollution diffusion early warning, the well group system comprising:
the monitoring well subgroups are arranged outside the pollution control range in a surrounding mode and are used for forming monitoring barriers outside the pollution control range; the monitoring well subgroup comprises M first monitoring wells, N second monitoring wells and O third monitoring wells; the first monitoring well is positioned in the upstream direction of the flow direction of underground water, the second monitoring well is positioned in the vertical direction of the flow direction of the underground water, the third monitoring well is positioned in the parallel downstream direction of the flow direction of the underground water, M is more than or equal to 1, N is more than or equal to 2, and O is more than or equal to 2;
a circulating well subgroup disposed circumferentially outside the monitoring barrier for forming a contaminant migration barrier outside the monitoring barrier; the circulating well sub-group comprises P first circulating wells and Q second circulating wells, wherein the first circulating wells are positioned in the vertical direction of the flowing direction of the groundwater, and the second circulating wells are positioned in the parallel downstream direction of the flowing direction of the groundwater; p is more than or equal to 2, and Q is more than or equal to 2;
the control assembly is connected with the monitoring well subgroup and the circulating well subgroup and is used for controlling the monitoring well subgroup to detect the water quality parameters and the water flow parameters of the underground water; and for controlling the opening or closing of the sub-group of circulation wells.
2. The well cluster system of claim 1, wherein the second circulation well is disposed at a higher density than the first circulation well.
3. The well group system of claim 1, wherein the third monitoring wells are disposed at a higher density than the second monitoring wells.
4. The well cluster system of claim 1, wherein the first monitor well is located 30-50 meters from a boundary of a pollution plume of the groundwater.
5. The well cluster system of claim 1, wherein the second monitoring well and the third monitoring well are 3-10 meters from a boundary of the contamination management control range.
6. The well group system of claim 1, wherein a distance between any monitoring well in the monitoring well subgroup and a boundary of the contaminant migration barrier is 20-50 meters.
7. The well group system of claim 1, wherein a spacing between any two adjacent circulating wells in the sub-group of circulating wells is 20-50 meters.
8. The well group system of claim 1, wherein a water quality monitoring mechanism is provided at a predetermined well water level of the monitoring well.
9. The well group system of claim 8, wherein the water quality monitoring mechanism comprises at least one of a water quality detection probe, a passive diffusion bag PDB, and a baylor tube.
10. The well cluster system of claim 8, wherein the water quality monitoring mechanism comprises a first detection unit within one meter of well water level and a second detection unit below one meter of well water level.
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| CN202022538549.XU CN213337593U (en) | 2020-11-05 | 2020-11-05 | Well group system for underground water pollution diffusion early warning |
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| CN202022538549.XU CN213337593U (en) | 2020-11-05 | 2020-11-05 | Well group system for underground water pollution diffusion early warning |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114441725A (en) * | 2022-01-25 | 2022-05-06 | 生态环境部土壤与农业农村生态环境监管技术中心 | Underground water hidden danger investigation and pollution early warning integrated system |
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2020
- 2020-11-05 CN CN202022538549.XU patent/CN213337593U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114441725A (en) * | 2022-01-25 | 2022-05-06 | 生态环境部土壤与农业农村生态环境监管技术中心 | Underground water hidden danger investigation and pollution early warning integrated system |
| US20230236163A1 (en) * | 2022-01-25 | 2023-07-27 | Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry and Environ | Comprehensive system for potential risk identification and pollution prewarning of groundwater |
| US11892442B2 (en) * | 2022-01-25 | 2024-02-06 | Technical Centre For Soil, Agriculture And Rural Ecology And Environment, Ministry Of Ecology And Environment | Comprehensive system for potential risk identification and pollution prewarning of groundwater |
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