CN107827273B - Groundwater pollution treatment system and groundwater pollution treatment method - Google Patents
Groundwater pollution treatment system and groundwater pollution treatment method Download PDFInfo
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- CN107827273B CN107827273B CN201711080119.4A CN201711080119A CN107827273B CN 107827273 B CN107827273 B CN 107827273B CN 201711080119 A CN201711080119 A CN 201711080119A CN 107827273 B CN107827273 B CN 107827273B
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- groundwater
- drain
- holes
- pipe
- reservoir
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- 238000003895 groundwater pollution Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000003673 groundwater Substances 0.000 claims abstract description 38
- 239000013043 chemical agent Substances 0.000 claims abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 11
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 11
- 238000010276 construction Methods 0.000 claims abstract description 10
- 229910001141 Ductile iron Inorganic materials 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 230000008595 infiltration Effects 0.000 claims abstract description 6
- 238000001764 infiltration Methods 0.000 claims abstract description 6
- 230000002262 irrigation Effects 0.000 claims abstract description 5
- 238000003973 irrigation Methods 0.000 claims abstract description 5
- 239000003814 drug Substances 0.000 claims abstract description 4
- 229940079593 drug Drugs 0.000 claims abstract description 4
- 238000009412 basement excavation Methods 0.000 claims description 5
- 230000003472 neutralizing effect Effects 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000126 substance Substances 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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)
- Processing Of Solid Wastes (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a treatment system and a treatment method for groundwater pollution, wherein the treatment system comprises a deep water warehouse excavated in a region where groundwater is polluted, a plurality of flat holes communicated with the deep water warehouse are arranged in a side slope of the deep water warehouse, the lining of the flat holes is a steel pipe or a nodular cast iron pipe, a plurality of drain holes are arranged on the lining, drain pipes are arranged at the tail ends of the drain holes, the drain pipes are positioned at the outer sides of the lining and welded with the lining, and a non-woven fabric is wrapped at a water inlet of the drain pipes for reverse filtration. After the polluted groundwater is collected into a deep reservoir, selecting targeted chemical agents and drug amounts according to the groundwater pollution types and degrees, pouring the chemical agents into the deep reservoir, and purifying the chemical agents; the treated water is drawn from the deepwater reservoir for irrigation or other uses. The invention increases the infiltration area of the groundwater, is convenient for rapid collection and rapid treatment of the groundwater. The method has the characteristics of wide groundwater treatment range, low construction difficulty and high efficiency and economy for treating groundwater pollution.
Description
Technical Field
The invention relates to the field of water pollution treatment, in particular to a system and a method for treating groundwater pollution.
Background
The underground water flows slowly and the pollution sources are various, so that the underground water pollution has the characteristics of slow process, difficult discovery and difficult treatment. In recent years, with the rapid development of economy in China, the groundwater pollution situation is increasingly serious. At present, the progress of the domestic groundwater pollution prevention and treatment work is generally slow, and the research results are less.
Disclosure of Invention
The invention aims to solve the technical problems of providing a groundwater pollution treatment system and a groundwater pollution treatment method, which have the advantages of simple construction, advanced technology, wide applicability and capability of improving the groundwater pollution treatment effect.
In order to solve the technical problems, the invention adopts the following technical scheme: a treatment system for groundwater pollution comprises a deep water reservoir excavated in a region where groundwater is polluted, wherein a plurality of flat holes communicated with the deep water reservoir are arranged in a side slope of the deep water reservoir, lining of the flat holes is made of steel pipes or ductile cast iron pipes, a plurality of drain holes are arranged on the lining, drain pipes are arranged at the tail ends of the drain holes, the drain pipes are positioned on the outer side of the lining and welded with the lining, and a non-woven fabric is wrapped at a water inlet of the drain pipes for back filtration.
The aperture of the drain holes is 50mm, the depth is 1-2 m, the row spacing between the drain holes is 2-4 m, and the drain holes are arranged in a quincuncial shape.
The excavation slope ratio of the deep water reservoir slope is 1:3-1:5, and the reservoir bottom elevation is 10-20 m lower than the groundwater level.
The flat holes are arranged in 1-2 rows up and down, and the diameter is not smaller than 3m.
The pipe diameter of the drain pipe is 38mm, and the length is 0.3m.
A method for treating groundwater pollution comprises the following steps:
(1) Digging a deep reservoir in a region where groundwater is polluted, arranging a flat hole in a side slope of the deep reservoir, lining and arranging a drain hole in the flat hole, arranging a drain pipe at the tail end of the drain hole, and wrapping the drain pipe with non-woven fabrics for reverse filtration;
(2) After the polluted groundwater is collected into a deep reservoir, selecting targeted chemical agents and drug amounts according to the groundwater pollution types and degrees, pouring the chemical agents into the deep reservoir, and purifying the chemical agents;
(3) The treated water is drawn from the deepwater reservoir for irrigation or other uses.
And (2) determining the position of the deep water reservoir to select a relatively low point of the groundwater flow direction in the polluted area according to the range, depth and groundwater seepage flow direction rule of the groundwater polluted area, so that the polluted groundwater can automatically flow and collect.
According to the distribution condition of underground water, 1-2 rows of flat holes are arranged on a side slope of a deepwater reservoir, the flat holes are formed in a jacking pipe construction mode, the diameter is not smaller than 3m, the lengths and the intervals of the flat holes are determined according to underground water infiltration calculation, and the jacking pipe is a round steel pipe or a nodular cast iron pipe meeting the bearing capacity requirement and the perforating requirement.
After the construction of the flat tunnel jacking pipe is completed, arranging drainage holes on the inner wall of the flat tunnel lining, wherein the hole diameter is 50mm, the depth is 1-2 m, the interval distance is 2-4 m, and the quincuncial arrangement is realized; the tail end of the drain hole is provided with a drain pipe, the pipe diameter of the drain pipe is 38mm, the length of the drain pipe is 0.3m, the drain pipe is wrapped with non-woven fabrics for reverse filtration, and the tail end of the drain pipe is welded and sealed with the flat tunnel lining.
The beneficial effects of the invention are as follows: the method increases the infiltration area of the underground water, is convenient for the rapid collection of the underground water, and has the characteristics of wide underground water treatment range, low construction difficulty, high efficiency and economy for treating the pollution of the underground water.
Drawings
FIG. 1 is a schematic plan view of a system for treating groundwater pollution according to the invention.
FIG. 2 is a typical longitudinal section of a deepwater reservoir.
FIG. 3 is a typical cross-sectional view of a deepwater reservoir.
FIG. 4 is a typical cross-sectional view of a flat hole.
Fig. 5 is a large view of the drain pipe.
Detailed Description
The invention is described in further detail below with reference to the attached drawings and detailed description:
as shown in figures 1-5, the treatment system for groundwater pollution comprises a deep water warehouse 1 excavated in a region where groundwater is polluted, a plurality of flat holes 2 communicated with the deep water warehouse are arranged in a side slope of the deep water warehouse, a lining 3 of each flat hole 2 is a steel pipe or a nodular cast iron pipe, a plurality of drain holes 4 are distributed on the lining 3, a drain pipe 5 is arranged at the tail end of each drain hole 4, the drain pipe 5 is positioned at the outer side of the lining 3 and welded with the lining 3, and a non-woven fabric 6 is wrapped at a water inlet of the drain pipe 5 for back filtration.
The aperture of the drain holes 4 is 50mm, the depth is 1-2 m, the row spacing among the drain holes is 2-4 m, and the drain holes are arranged in a quincuncial shape.
The excavation slope ratio of the deep water warehouse 1 slope is 1:3-1:5, and the height of the warehouse bottom is 10-20 m lower than the groundwater level.
The flat holes 2 are arranged in 1-2 rows up and down, and the diameter is not smaller than 3m.
The pipe diameter of the drainage flower pipe 5 is 38mm, and the length is 0.3m.
A method for treating groundwater pollution comprises the following steps:
(1) Digging a deep reservoir in a region where groundwater is polluted, arranging a flat hole in a side slope of the deep reservoir, lining and arranging a drain hole in the flat hole, arranging a drain pipe at the tail end of the drain hole, and wrapping the drain pipe with non-woven fabrics for reverse filtration;
(2) After the polluted groundwater is collected into a deep reservoir, selecting targeted chemical agents and drug amounts according to the groundwater pollution types and degrees, pouring the chemical agents into the deep reservoir, and purifying the chemical agents;
(3) The treated water is drawn from the deepwater reservoir for irrigation or other uses.
And (2) determining the position of the deep water reservoir to select a relatively low point of the groundwater flow direction in the polluted area according to the range, depth and groundwater seepage flow direction rule of the groundwater polluted area, so that the polluted groundwater can automatically flow and collect.
According to the distribution condition of underground water, 1-2 rows of flat holes are arranged on a side slope of a deepwater reservoir, the flat holes are formed in a jacking pipe construction mode, the diameter is not smaller than 3m, the lengths and the intervals of the flat holes are determined according to underground water infiltration calculation, and the jacking pipe is a round steel pipe or a nodular cast iron pipe meeting the bearing capacity requirement and the perforating requirement.
After the construction of the flat tunnel jacking pipe is completed, arranging drainage holes on the inner wall of the flat tunnel lining, wherein the hole diameter is 50mm, the depth is 1-2 m, the interval distance is 2-4 m, and the quincuncial arrangement is realized; the tail end of the drain hole is provided with a drain pipe, the pipe diameter of the drain pipe is 38mm, the length of the drain pipe is 0.3m, the drain pipe is wrapped with non-woven fabrics for reverse filtration, and the tail end of the drain pipe is welded and sealed with the flat tunnel lining.
Specifically, as shown in fig. 1 to 5, according to the distribution situation of the polluted groundwater, the deep water reservoir 1 is determined to be arranged at a relatively low point of the groundwater flow direction, so that the groundwater is conveniently collected. The deep reservoir 1 is formed by excavation, the reservoir bottom Gao Chengying is 10-20 m lower than the groundwater level, and the slope excavation slope ratio of the deep reservoir 1 is 1:3-1:5.
According to the distribution condition of underground water, 1-2 rows of flat holes 2 are arranged on the side slope of the deep water warehouse 1. The flat holes 2 are round, pipe jacking construction is adopted, and the lengths and the intervals of the flat holes 2 can be determined according to groundwater infiltration calculation. The lining 3 of the flat hole 2 can be a round steel pipe or a ductile cast iron pipe which meets the requirements of bearing capacity and opening, the diameter is not smaller than 3m, the inner wall of the lining 3 of the flat hole 2 is provided with a drain hole 4, the aperture is 50mm, the depth is 1-2 m, and the interval is 2-4 m. The tail end of the drain hole 4 is provided with a drain pipe 5, the pipe diameter of the drain pipe 5 is 38mm, the length is 0.3m, the non-woven fabric is wrapped for reverse filtration, and the tail end of the drain pipe 5 is welded and sealed with the lining 3 of the flat hole 2.
The polluted groundwater is collected into the structure of the invention through seepage, and the specific chemical agent and the specific chemical dosage are selected according to the type and the degree of groundwater pollution, and the groundwater is purified. If the neutralizing agent is used for neutralizing acidic or alkaline percolate, the oxidant is added to degrade organic matters or lead inorganic compounds to form precipitates, and the like, different chemical agents can be selected according to the condition of polluted underground water in the actual treatment process. The treated water may be drawn from a deepwater reservoir and used for irrigation or other purposes.
The above-described embodiments are only for illustrating the technical spirit and features of the present invention, and it is intended to enable those skilled in the art to understand the content of the present invention and to implement it accordingly, and the scope of the present invention is not limited to the embodiments, i.e. equivalent changes or modifications to the spirit of the present invention are still within the scope of the present invention.
Claims (7)
1. A treatment method of groundwater pollution is characterized in that a treatment system of groundwater pollution comprises a deep water warehouse (1) excavated in a region where groundwater is polluted, a plurality of flat holes (2) communicated with the deep water warehouse are arranged in a side slope of the deep water warehouse, lining (3) of the flat holes (2) is a steel pipe or a nodular cast iron pipe, a plurality of drain holes (4) are arranged on the lining (3), drain pipes (5) are arranged at the tail ends of the drain holes (4), the drain pipes (5) are positioned at the outer sides of the lining (3) and welded with the lining (3), and a non-woven fabric (6) is wrapped at a water inlet of the drain pipes (5) for reverse filtration; the treatment method comprises the following steps:
(1) Digging a deep reservoir in a region where groundwater is polluted, arranging a flat hole in a side slope of the deep reservoir, lining and arranging a drain hole in the flat hole, arranging a drain pipe at the tail end of the drain hole, and wrapping the drain pipe with non-woven fabrics for reverse filtration; determining the position of a deep water reservoir according to the range, depth and groundwater seepage flow direction rule of a groundwater polluted area, and selecting a relatively low point of groundwater flow direction in the polluted area so that polluted groundwater can automatically flow and collect;
(2) After the polluted groundwater is collected into a deep reservoir, selecting targeted chemical agents and drug amounts according to the groundwater pollution types and degrees, pouring the chemical agents into the deep reservoir, and purifying the chemical agents;
(3) The treated water is drawn from the deepwater reservoir for irrigation or other uses.
2. The method for treating groundwater pollution according to claim 1, wherein in the step (1), 1-2 rows of flat holes are arranged on a side slope of a deepwater reservoir according to the distribution condition of groundwater, the flat holes are formed in a jacking pipe construction mode, the diameter is not smaller than 3m, the lengths and the intervals of the flat holes are determined according to groundwater infiltration calculation, and the jacking pipe is a round steel pipe or a nodular cast iron pipe meeting the bearing capacity requirement and the perforating requirement.
3. The method for treating groundwater pollution according to claim 2, wherein after the construction of the flat tunnel jacking pipe is completed, drainage holes are arranged on the inner wall of the flat tunnel lining, the aperture is 50mm, the depth is 1-2 m, the interval distance is 2-4 m, and the quincuncial arrangement is performed; the tail end of the drain hole is provided with a drain pipe, the pipe diameter of the drain pipe is 38mm, the length of the drain pipe is 0.3m, the drain pipe is wrapped with non-woven fabrics for reverse filtration, and the tail end of the drain pipe is welded and sealed with the flat tunnel lining.
4. The method for treating groundwater pollution according to claim 1, wherein the drain holes (4) have a diameter of 50mm, a depth of 1-2 m, a row spacing between the drain holes of 2-4 m, and a quincuncial arrangement.
5. The method for treating groundwater pollution according to claim 1, wherein the slope excavation slope ratio of the deep water reservoir (1) is 1:3-1:5, and the reservoir bottom elevation is 10-20 m lower than the groundwater level.
6. The method for treating groundwater pollution according to claim 1, wherein the flat holes (2) are arranged in 1-2 rows up and down, and the diameter is not less than 3m.
7. The method for treating groundwater pollution according to claim 1, wherein the diameter of the drain pipe (5) is 38mm and the length is 0.3m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711080119.4A CN107827273B (en) | 2017-11-06 | 2017-11-06 | Groundwater pollution treatment system and groundwater pollution treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711080119.4A CN107827273B (en) | 2017-11-06 | 2017-11-06 | Groundwater pollution treatment system and groundwater pollution treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107827273A CN107827273A (en) | 2018-03-23 |
| CN107827273B true CN107827273B (en) | 2023-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711080119.4A Active CN107827273B (en) | 2017-11-06 | 2017-11-06 | Groundwater pollution treatment system and groundwater pollution treatment method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1718946A (en) * | 2005-06-09 | 2006-01-11 | 大连久鼎特种建筑工程有限公司 | Underground submerged interception for preventing sea water from invasion and water collection method |
| CN204225137U (en) * | 2014-10-31 | 2015-03-25 | 上海岩土工程勘察设计研究院有限公司 | For the radial well dewatering structure of contaminated water and soil integration in-situ immobilization |
| CN204940363U (en) * | 2015-08-26 | 2016-01-06 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of groundwater pollution treatment system |
| CN207685012U (en) * | 2017-11-06 | 2018-08-03 | 中国电建集团北京勘测设计研究院有限公司 | A kind of governing system of underground water pollution |
-
2017
- 2017-11-06 CN CN201711080119.4A patent/CN107827273B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1718946A (en) * | 2005-06-09 | 2006-01-11 | 大连久鼎特种建筑工程有限公司 | Underground submerged interception for preventing sea water from invasion and water collection method |
| CN204225137U (en) * | 2014-10-31 | 2015-03-25 | 上海岩土工程勘察设计研究院有限公司 | For the radial well dewatering structure of contaminated water and soil integration in-situ immobilization |
| CN204940363U (en) * | 2015-08-26 | 2016-01-06 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of groundwater pollution treatment system |
| CN207685012U (en) * | 2017-11-06 | 2018-08-03 | 中国电建集团北京勘测设计研究院有限公司 | A kind of governing system of underground water pollution |
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| Publication number | Publication date |
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| CN107827273A (en) | 2018-03-23 |
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