CN112517632A - Extraction well and heterogeneous extraction system of restoration contaminated site NAPL looks - Google Patents
Extraction well and heterogeneous extraction system of restoration contaminated site NAPL looks Download PDFInfo
- Publication number
- CN112517632A CN112517632A CN202011498761.6A CN202011498761A CN112517632A CN 112517632 A CN112517632 A CN 112517632A CN 202011498761 A CN202011498761 A CN 202011498761A CN 112517632 A CN112517632 A CN 112517632A
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- Prior art keywords
- extraction
- napl
- phase
- repairing
- napl phase
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- 238000000605 extraction Methods 0.000 title claims abstract description 83
- 239000003814 drug Substances 0.000 claims abstract description 40
- 238000002347 injection Methods 0.000 claims abstract description 33
- 239000007924 injection Substances 0.000 claims abstract description 33
- 238000003860 storage Methods 0.000 claims abstract description 25
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 23
- 231100000719 pollutant Toxicity 0.000 claims abstract description 23
- 238000011084 recovery Methods 0.000 claims abstract description 14
- 210000001503 joint Anatomy 0.000 claims abstract description 4
- 239000000523 sample Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 229940079593 drug Drugs 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 238000005188 flotation Methods 0.000 claims description 5
- 238000005194 fractionation Methods 0.000 claims description 5
- 239000004094 surface-active agent Substances 0.000 claims description 3
- 238000012377 drug delivery Methods 0.000 claims description 2
- 238000011065 in-situ storage Methods 0.000 abstract description 3
- 239000012071 phase Substances 0.000 description 25
- 238000004064 recycling Methods 0.000 description 5
- 239000000356 contaminant Substances 0.000 description 4
- 239000008346 aqueous phase Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005067 remediation Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
The invention discloses an extraction well and a multiphase extraction system for repairing NAPL phase of a polluted site, comprising: the extraction unit and the medicament storage injection unit and the resource recovery unit which are connected with the extraction unit, wherein the extraction unit is used for accurately extracting NAPL phase pollutants in an extraction well and comprises: the extraction injection tube is respectively connected with the medicament storage injection unit and the resource recovery unit, a plurality of outer openings are formed in the outer sleeve, a plurality of inner openings corresponding to the positions of the outer openings are formed in the inner sleeve, and the inner sleeve can slide up and down in the outer sleeve to adjust the butt joint position of the outer openings and the inner openings. The invention can realize the accurate positioning and operation of the light NAPL and heavy NAPL phase pollutants, and can inject the medicament into the NAPL phase pollutants for direct in-situ treatment.
Description
Technical Field
The invention relates to the technical field of soil remediation, in particular to an extraction well for remedying NAPL phase of a contaminated site and a multiphase extraction system.
Background
Non-aqueous phase liquid (NAPL) is one of common pollutants in a polluted site, and comprises light non-aqueous phase liquid (LNAPL, floating on the water surface) and heavy non-aqueous phase liquid (DNAPL, sinking at the water bottom).
Disclosure of Invention
The invention mainly solves the technical problem of providing an extraction well and a multiphase extraction system for repairing NAPL phase of a polluted site, which can realize the accurate positioning and operation of various density NAPL phase pollutants, can inject medicaments into the NAPL phase pollutants according to the repairing requirement, directly treat in situ, have simple operation and various functions, and can meet the requirements of various repairing designs.
Aiming at the problems that NAPL phase pollutants are difficult to extract and lack of an in-situ direct treatment device, the technical scheme provided by the invention is as follows: an extraction well and a multiphase extraction system for repairing NAPL phase of a polluted site comprise: the extraction unit and with medicament storage injection unit, resource recovery unit that the extraction unit is connected, the extraction unit is used for carrying out accurate extraction to NAPL looks pollutant in the extraction well, and it includes: the extraction injection tube is respectively connected with the medicament storage injection unit and the resource recovery unit, a plurality of outer openings are formed in the outer sleeve, a plurality of inner openings corresponding to the positions of the outer openings are formed in the inner sleeve, and the inner sleeve can slide up and down in the outer sleeve to adjust the butt joint position of the outer openings and the inner openings.
In a preferred embodiment of the present invention, the outer opening is a long strip-shaped opening formed along a height direction of the outer sleeve.
In a preferred embodiment of the present invention, the inner openings are circular openings, and the distance between two adjacent inner openings is consistent with the distance between two adjacent outer openings.
In a preferred embodiment of the invention, the probe is fixed inside the inner sleeve.
In a preferred embodiment of the present invention, the drug storage and injection unit comprises a drug storage tank, a drug mixing device and a drug delivery pipe connected with an extraction injection tube.
In a preferred embodiment of the present invention, the drug mixing device is further connected to a drug storage tank, and the drug storage tank contains water or a surfactant.
In a preferred embodiment of the present invention, the recycling unit comprises an oil-separation-gas flotation device connected to the extraction injection pipe for separating and recycling the extracted NAPL phase contaminants or chemicals, and a separation tank for separating the NAPL phase contaminants and separating a small amount of other phase substances in the NAPL phase.
In a preferred embodiment of the present invention, the recycling unit comprises an extraction-fractionation device connected to the extraction injection pipe for separating and recycling the extracted NAPL phase contaminants or chemicals, and a separation tank for separating the NAPL phase contaminants to separate a small amount of other phase substances in the NAPL phase.
In a preferred embodiment of the present invention, a first water pump is disposed between the chemical storage injection unit and the extraction injection tube, and a second water pump is disposed between the resource recovery unit and the extraction injection tube.
In a preferred embodiment of the invention, the probe is a densitometer probe or a viscometer probe.
The invention has the beneficial effects that: the utility model discloses a repair extraction well and the heterogeneous system of extracting of contaminated site NAPL looks can realize the accurate location and the operation to multiple density NAPL looks pollutant to according to the restoration demand, can inject the medicament to NAPL looks pollutant, direct normal position is handled, easy operation, and the function is various, can satisfy the demand of multiple restoration design.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic diagram of an extraction well for repairing NAPL phase of a contaminated site and a multiphase extraction system according to the present invention;
FIG. 2 is a flow diagram of an extraction well and a multiphase extraction system for remediation of NAPL phase at a contaminated site in accordance with the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides an extraction well and a multiphase extraction system for repairing the NAPL phase of a contaminated site, comprising: the extraction unit 1, the medicament storage injection unit 2 connected with the extraction unit, and the resource recovery unit 3, the extraction unit is used for accurately extracting NAPL phase pollutants in the extraction well, and the extraction unit comprises: the extraction injection tube is respectively connected with the medicament storage injection unit and the resource recovery unit, a plurality of outer open holes 15 are formed in the outer sleeve, a plurality of inner open holes 16 corresponding to the positions of the outer open holes are formed in the inner sleeve, the inner sleeve can slide up and down in the outer sleeve to adjust the butt joint position of the outer open holes and the inner open holes, specifically, the outer open holes are long strip-shaped open holes formed in the height direction of the outer sleeve, the inner open holes are circular open holes, and the distance between two adjacent inner open holes and the distance between two adjacent outer open holes are kept consistent.
During operation, at first utilize the density of NAPL looks pollutant and water and the different characteristic of viscosity, through densimeter probe or viscometer probe, the double-phase boundary of accurate definite, probe location back is by interior, the outer tube realizes the regulation of the high position between interior trompil and the outer trompil, interior, the structure of outer tube is similar with the elevartor shaft, be located the extraction well, the outer tube sets up from the rectangular shape trompil of top to bottom, interior sleeve pipe sets up single trompil, when needing to adjust the trompil height, on the high position according to probe confirmed, adjust interior sleeve pipe height down, to required height back interior trompil and outer trompil intercommunication, thereby realize the accurate extraction to the NAPL looks pollutant of different densities, improve whole throughput.
Specifically, the probe is a densimeter probe or a viscometer probe and is fixed inside the inner sleeve, the medicament storage and injection unit comprises a medicament storage tank 21, a medicament mixing device 22 and a medicament delivery pipe 23 which are connected, the medicament delivery pipe is connected with an extraction injection pipe, the medicament mixing device is also connected with a medicament storage tank 24, the medicament storage tank is used for storing water or an activating agent, medicaments are stored in the medicament storage tank, water or the activating agent is added when the medicament storage tank is used and is mixed in the medicament mixing device, the mixed medicaments enter the extraction injection pipe through a medicament delivery pipe and are injected into polluted soil from the communication position of an inner opening and an outer opening and are diffused, the medicaments react with NAPL phase pollutants in the soil to be directly treated, and after treatment, medicaments such as surfactants and the like can be recovered and reused by using the extraction unit according to actual conditions, secondary pollution is reduced, and the medicament consumption is saved.
Specifically, a first water pump 4 is arranged between the medicament storage injection unit and the extraction injection pipe, a second water pump 5 is arranged between the resource recovery unit and the extraction injection pipe, the resource recovery unit is formed by combining an oil separation-air flotation device or an extraction-fractionation device 31 and a precipitation separation box 32, the oil separation-air flotation device or the extraction-fractionation device is connected with the extraction injection pipe and used for separating and recovering extracted NAPL phase pollutants or medicaments, and the separation box is used for separating NAPL phase pollutants to separate a small amount of other phase substances in NAPL phase for recycling.
The extraction well and the multiphase extraction system for repairing the NAPL phase of the polluted site have the beneficial effects that: the utility model discloses a repair extraction well and the heterogeneous system of extracting of contaminated site NAPL looks can realize the accurate location and the operation to multiple density NAPL looks pollutant to according to the restoration demand, can inject the medicament to NAPL looks pollutant, direct normal position is handled, easy operation, and the function is various.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An extraction well and a multiphase extraction system for repairing NAPL phase of a polluted site are characterized by comprising the following components: the extraction unit and with medicament storage injection unit, resource recovery unit that the extraction unit is connected, the extraction unit is used for carrying out accurate extraction to NAPL looks pollutant in the extraction well, and it includes: the extraction injection tube is respectively connected with the medicament storage injection unit and the resource recovery unit, a plurality of outer openings are formed in the outer sleeve, a plurality of inner openings corresponding to the positions of the outer openings are formed in the inner sleeve, and the inner sleeve can slide up and down in the outer sleeve to adjust the butt joint position of the outer openings and the inner openings.
2. The extraction well and the multiphase extraction system for repairing the NAPL phase of the polluted site according to claim 1, wherein the outer opening is an elongated opening formed along the height direction of the outer sleeve.
3. The extraction well and the multiphase extraction system for repairing contaminated site NAPL phase according to claim 2, wherein the inner openings are circular openings, and the distance between two adjacent inner openings is consistent with the distance between two adjacent outer openings.
4. The extraction well and the multiphase extraction system for repairing the NAPL phase of the polluted site according to claim 1, wherein the probe is fixed inside the inner sleeve.
5. The extraction well and the multiphase extraction system for repairing contaminated site NAPL phase according to claim 1, wherein the drug storage injection unit comprises a drug storage tank, a drug mixing device and a drug delivery pipe connected with the extraction injection pipe.
6. The extraction well and the multiphase extraction system for repairing contaminated site NAPL phase according to claim 5, wherein the agent mixing device is further connected with an agent storage tank, and the agent storage tank is filled with water or surfactant.
7. The extraction well and the multiphase extraction system for repairing NAPL phase of a polluted site as claimed in claim 1, wherein the resource recovery unit comprises an oil-separation-air flotation device and a separation box, the oil-separation-air flotation device is connected with an extraction injection pipe and is used for separating and recovering NAPL phase pollutants or agents, and the separation box is used for separating NAPL phase pollutants and separating a small amount of other phase substances in NAPL phase.
8. The extraction well and the multiphase extraction system for repairing NAPL phase of a polluted site according to claim 1, wherein the resource recovery unit comprises an extraction-fractionation device and a separation box, the extraction-fractionation device is connected with an extraction injection pipe and is used for separating and recovering NAPL phase pollutants or agents, and the separation box is used for separating NAPL phase pollutants and separating small amount of other phase substances in NAPL phase.
9. The extraction well and the multiphase extraction system for repairing the NAPL phase of the polluted site according to claim 1, wherein a first water pump is arranged between the chemical storage injection unit and the extraction injection pipe, and a second water pump is arranged between the resource recovery unit and the extraction injection pipe.
10. The extraction well and the multiphase extraction system for repairing the NAPL phase of the polluted site according to claim 1, wherein the probe is a densitometer probe or a viscometer probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011498761.6A CN112517632A (en) | 2020-12-18 | 2020-12-18 | Extraction well and heterogeneous extraction system of restoration contaminated site NAPL looks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011498761.6A CN112517632A (en) | 2020-12-18 | 2020-12-18 | Extraction well and heterogeneous extraction system of restoration contaminated site NAPL looks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112517632A true CN112517632A (en) | 2021-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011498761.6A Pending CN112517632A (en) | 2020-12-18 | 2020-12-18 | Extraction well and heterogeneous extraction system of restoration contaminated site NAPL looks |
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| Country | Link |
|---|---|
| CN (1) | CN112517632A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114260301A (en) * | 2022-01-25 | 2022-04-01 | 森特士兴环保科技有限公司 | Skid-mounted multiphase extraction equipment system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016141202A1 (en) * | 2015-03-03 | 2016-09-09 | ARCADIS Corporate Services, Inc. | System and method for measuring non-aqueous phase liquid accumulations in monitoring wells at contaminated sites |
| CN110624943A (en) * | 2019-09-03 | 2019-12-31 | 中科鼎实环境工程有限公司 | Device for accurately pumping NAPL pollutants in underground water |
| CN111420980A (en) * | 2020-03-31 | 2020-07-17 | 中科鼎实环境工程有限公司 | System for comprehensive treatment of saturated zone and aeration zone |
| CN111715684A (en) * | 2020-07-17 | 2020-09-29 | 西藏神州瑞霖环保科技股份有限公司 | Contaminated soil remediation system and contaminated soil remediation method |
| CN211888396U (en) * | 2019-12-31 | 2020-11-10 | 中科鼎实环境工程有限公司 | In-situ resistance heating and steam enhanced extraction coupling system for repairing polluted site |
| CN214813572U (en) * | 2020-12-18 | 2021-11-23 | 苏州精英环保有限公司 | Extraction well and heterogeneous extraction system of restoration contaminated site NAPL looks |
-
2020
- 2020-12-18 CN CN202011498761.6A patent/CN112517632A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016141202A1 (en) * | 2015-03-03 | 2016-09-09 | ARCADIS Corporate Services, Inc. | System and method for measuring non-aqueous phase liquid accumulations in monitoring wells at contaminated sites |
| CN110624943A (en) * | 2019-09-03 | 2019-12-31 | 中科鼎实环境工程有限公司 | Device for accurately pumping NAPL pollutants in underground water |
| CN211888396U (en) * | 2019-12-31 | 2020-11-10 | 中科鼎实环境工程有限公司 | In-situ resistance heating and steam enhanced extraction coupling system for repairing polluted site |
| CN111420980A (en) * | 2020-03-31 | 2020-07-17 | 中科鼎实环境工程有限公司 | System for comprehensive treatment of saturated zone and aeration zone |
| CN111715684A (en) * | 2020-07-17 | 2020-09-29 | 西藏神州瑞霖环保科技股份有限公司 | Contaminated soil remediation system and contaminated soil remediation method |
| CN214813572U (en) * | 2020-12-18 | 2021-11-23 | 苏州精英环保有限公司 | Extraction well and heterogeneous extraction system of restoration contaminated site NAPL looks |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114260301A (en) * | 2022-01-25 | 2022-04-01 | 森特士兴环保科技有限公司 | Skid-mounted multiphase extraction equipment system |
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