CN206553251U - Oxidation well of the in-situ treatment by chlorohydrocarbon polluted underground water - Google Patents
Oxidation well of the in-situ treatment by chlorohydrocarbon polluted underground water Download PDFInfo
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- CN206553251U CN206553251U CN201720160393.1U CN201720160393U CN206553251U CN 206553251 U CN206553251 U CN 206553251U CN 201720160393 U CN201720160393 U CN 201720160393U CN 206553251 U CN206553251 U CN 206553251U
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- chimney filter
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Abstract
The utility model is related to a kind of oxidation well of in-situ treatment by chlorohydrocarbon polluted underground water, including internal layer chimney filter, outer layer chimney filter, the borehole wall, and pharmacy response is filled between the internal layer chimney filter and outer layer chimney filter, constitutes an in-situ oxidation reactor；Loaded filter is set between the outer layer chimney filter and the borehole wall；Blocked between the loaded filter and the pharmacy response of filling layer and well head with clay.Loaded filter between the utility model borehole wall and outer layer chimney filter, played water, sand block, between interior metafiltration pipe and outer layer chimney filter, filling sustained release calper calcium peroxide and goethite, constitute the in-situ oxidation reactor of a Fenton-like, by the iterative cycles of underground water between injector well and extraction well, the purpose for the underground water that purification is polluted by chlorohydrocarbon is reached.The in-situ oxidation well that the utility model is provided, the underground water polluted for in-situ treatment by chlorohydrocarbon.
Description
Technical field
The utility model is related to the well that a kind of polluted underground water is repaired, it is more particularly to a kind of by chlorohydrocarbon impurely under
The in-situ oxidation well of water.
Background technology
The regional underground water pollution that China has is very serious, and huge risk is brought to human health and ecological safety.
Traditional restorative procedure is to extract soil surface treatment method.The defect of this method is to repair Final pollution thing concentration to have hangover and resilience.
Chlorohydrocarbon has been classified as the priority acccess control list of underground pollution thing by various countries.Chlorohydrocarbon polluted underground water in-situ chemical oxygen
Change method（in situ chemical oxidation, ISCO）It is one of underground water pollution regulation method most potential at present,
This method is by delivering water-soluble oxidizers into well, the organic matter in contaminated underground water of degrading, what this method was commonly used
Water-soluble oxidizers are potassium permanganate, activation sodium peroxydisulfate.
Calper calcium peroxide is a kind of yellowish crystalline powder, nontoxic odorless, with slow in water or in malaria
Decompose, the characteristic of oxygen is put for a long time.CaO2It is a kind of environmentally friendly material for having oxygen release and oxidisability concurrently.CaO2Dissolving
Degree is relatively low, can slowly discharge H2O2, the living radical of generation contacts for a long time with polluted underground water, it is to avoid oxidant
The problem of quick consumption, so that the long-term effect with reparation.CaO2It is dissolved in water and produces hydrogen peroxide（H2O2）Reaction can be wider
PH in the range of carry out.
Catalyst uses natural minerals goethite.Goethite is the oxide of widely distributed iron, chemical composition be α-
FeOOH.Multinomial studies have shown that is catalyzed H2O2During can produce OH, chlorohydrocarbon that can be in the efficient oxidation underground water.It is multinomial
Research shows, goethite H2O2System can not only make 99 more than % TCE degrade, and the substantially all quilt of chlorion in TCE
Release, TCE realizes permineralization. CaO2It is considered as the H of solid2O2, and compare H2O2It is directly applied in groundwater remediation
Effect it is notable.
Because OH has extremely strong oxidisability（2.76V）, class-Fenton technologies can handle most organic dirt
Thing is contaminated, and with very high reaction rate.In addition, class-Fenton technical operations are simple, and agents useful for same is without secondary dirt
Dye.Therefore, Fenton-like technique is artificially one of most promising contaminated site recovery technique.
Utility model content
Technical problem to be solved in the utility model be to provide a kind of chlorohydrocarbon good degrading effect in underground water and
Underground water in-situ oxidation well with long-term effect.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is：A kind of in-situ treatment is polluted by chlorohydrocarbon
The oxidation well of underground water, including internal layer chimney filter, outer layer chimney filter, the borehole wall, are filled anti-between the internal layer chimney filter and outer layer chimney filter
Medicament is answered, an in-situ oxidation reactor is constituted；Loaded filter is set between the outer layer chimney filter and the borehole wall；The loaded filter and fill out
Blocked between the pharmacy response layer and well head that fill with clay.
The internal layer chimney filter and outer layer chimney filter are set with one heart, with depth.
Chemical feed pipe is set in the pharmacy response layer filled between the internal layer chimney filter and outer layer chimney filter, pharmacy response is by adding
Pencil is supplemented.
The beneficial effects of the utility model are：
In-situ treatment of the present utility model is related to polluted underground water and repairs skill by the oxidation well of chlorohydrocarbon polluted underground water
Art field, what is solved is repairing effect long-term effect, and need not set soil surface treatment device, non-secondary pollution, without municipal administration row
Pipe facility.The well is filled out by outer layer chimney filter, internal layer chimney filter, loaded filter, cohesive soil and between interior metafiltration pipe and outer layer chimney filter
Sustained release calper calcium peroxide and goethite medicament, chemical feed pipe for filling etc. are constituted.Anti-filter between the utility model borehole wall and outer layer chimney filter
Layer, played water, sand block, between interior metafiltration pipe and outer layer chimney filter, filling sustained release calper calcium peroxide and goethite, constituted one
The in-situ oxidation reactor of Fenton-like, by the iterative cycles of underground water between injector well and extraction well, reaches purification by chlorine
The purpose of the underground water polluted for hydrocarbon.
Agents useful for same is completely without secondary pollution.Through peroxidating extraction well, by pipeline, recharge, which enters, sets Fenton-like
The inverted well of in-situ oxidation reactor, reduces live water storage facility and need not include municipal blow-off pipe, can be in no city
The scenic spot of political affairs sewage comb is used.According to the sensor of the on-line monitoring set in well, oxidizing potential is monitored.
Brief description of the drawings
Fig. 1 is oxidation well structure schematic diagram of the in-situ treatment of the present utility model by chlorohydrocarbon polluted underground water.
Embodiment
Implementation below in conjunction with brief description of the drawings to this patent, is described in further detail, but the present embodiment is not used to limit
This patent processed, it is every to use similar structure of the present utility model and its similar change, protection model of the present utility model all should be included in
Enclose.
As shown in figure 1, a kind of oxidation well of in-situ treatment by chlorohydrocarbon polluted underground water, by outer layer chimney filter 2, interior metafiltration
Pipe 1, loaded filter 3, cohesive soil 5 and the calper calcium peroxide and goethite medicament filled between interior metafiltration pipe 2 and outer layer chimney filter 2 etc.
Pharmacy response 4, chemical feed pipe 7 etc. are constituted.Outer layer chimney filter 2 and internal layer chimney filter 1 are set with one heart, with depth location set cloth.Outer layer chimney filter 2
With internal layer chimney filter 1, in-between, filling calper calcium peroxide and goethite etc. pharmacy response 4 simultaneously sets chemical feed pipe 7.Pharmacy response 4 leads to
Chemical feed pipe 7 is crossed to supplement.The pharmacy response such as calper calcium peroxide and goethite 4 is spacetabs type.Between outer layer chimney filter 2 and the borehole wall 6, set anti-
Filtering layer 3.The envelope of clay 5 is used between in-situ oxidation well loaded filter 3 and filling calper calcium peroxide and goethite etc. pharmacy response 4 and well head
It is stifled.
The utility model embodiment is applied to organic contamination underground water advanced oxidation in situ, with can effectively facilitating organic contamination
Lower water oxygen, the long-term effect for improving reparation.
The operation principle of the organic contamination underground water in-situ oxidation well of the utility model embodiment is as follows：
Immersible pump is set, drawn water in extraction well, after pressurizeing by the road, is expelled in inverted well, inverted well sets repairing
Multiple area periphery, so as to form hydraulic gradient, promotes ground water circulation, one until quality of groundwater reaches reparation target.
Claims (3)
1. a kind of in-situ treatment is by the oxidation well of chlorohydrocarbon polluted underground water, including internal layer chimney filter (1), outer layer chimney filter (2), well
Wall (6), it is characterised in that：Pharmacy response (4) is filled between the internal layer chimney filter (1) and outer layer chimney filter (2), an original position is constituted
Oxidation reactor；Loaded filter (3) is set between the outer layer chimney filter (2) and the borehole wall (6)；The loaded filter (3) and filling it is anti-
Medicament (4) is answered to be blocked between layer and well head with clay (5).
2. in-situ treatment according to claim 1 is by the oxidation well of chlorohydrocarbon polluted underground water, it is characterised in that：It is described
Internal layer chimney filter (1) and outer layer chimney filter (2) are set with one heart, with depth.
3. in-situ treatment according to claim 1 is by the oxidation well of chlorohydrocarbon polluted underground water, it is characterised in that：It is described
Chemical feed pipe (7) is set in pharmacy response (4) layer filled between internal layer chimney filter (1) and outer layer chimney filter (2), and pharmacy response (4) leads to
Cross chemical feed pipe (7) supplement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720160393.1U CN206553251U (en) | 2017-02-22 | 2017-02-22 | Oxidation well of the in-situ treatment by chlorohydrocarbon polluted underground water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720160393.1U CN206553251U (en) | 2017-02-22 | 2017-02-22 | Oxidation well of the in-situ treatment by chlorohydrocarbon polluted underground water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206553251U true CN206553251U (en) | 2017-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720160393.1U Active CN206553251U (en) | 2017-02-22 | 2017-02-22 | Oxidation well of the in-situ treatment by chlorohydrocarbon polluted underground water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106673173A (en) * | 2017-02-22 | 2017-05-17 | 上海广联环境岩土工程股份有限公司 | In-situ oxidizing well for treating chlorinated hydrocarbon-polluted underground water |
-
2017
- 2017-02-22 CN CN201720160393.1U patent/CN206553251U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106673173A (en) * | 2017-02-22 | 2017-05-17 | 上海广联环境岩土工程股份有限公司 | In-situ oxidizing well for treating chlorinated hydrocarbon-polluted underground water |
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