CN104874592B - A kind of contaminated soil original position multiphase extraction system - Google Patents
A kind of contaminated soil original position multiphase extraction system Download PDFInfo
- Publication number
- CN104874592B CN104874592B CN201510116797.6A CN201510116797A CN104874592B CN 104874592 B CN104874592 B CN 104874592B CN 201510116797 A CN201510116797 A CN 201510116797A CN 104874592 B CN104874592 B CN 104874592B
- Authority
- CN
- China
- Prior art keywords
- water
- gas
- well
- extraction
- pipeline
- 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.)
- Active
Links
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The present invention is a kind of contaminated soil original position multiphase extraction system, the system includes multiple extraction wells, the water and gas dual-purpose being provided with above the extraction well by corresponding pipeline for extracting gas-liquid in well pumps, the water and gas dual-purpose pump connects gas and water separator by corresponding pipeline, the gaseous phase outlet of the gas and water separator connects the suction inlet of vacuum pump by pipeline, the outlet of the vacuum pump connects the entrance of gas treatment equipment by pipeline, the outlet ambient atmosphere of the gas treatment equipment, the liquid-phase outlet of the gas and water separator connects the entrance of oily-water seperating equipment by pipeline, in the water-insoluble high-risk rubbish collecting device of pollutant outlet of the oily-water seperating equipment, the outlet of the oily-water seperating equipment connects Sewage Disposal by sewage pump.Using technical solution of the present invention, can control with the organic pollution in rehabilitating soil and underground water, and repairing efficiency is short, cost is low, maintenance is more convenient.
Description
Technical field
The present invention relates to field of environment engineering, and in particular to a kind of contaminated soil original position multiphase extraction system.
Background technology
Volatile polluted gas and runny nonaqueous phase contaminated fluid are known as NAPL, such as gasoline, diesel oil, organic solvent
Deng；Density is less than the referred to as LNAPL of water（Light NAPL）, light oil is also referred to as, is usually oil product, such as diesel oil, benzene, two
Toluene etc.；Density is more than the referred to as DNAPL of water（Density LNAPL）, it is usually halogen-containing organic solvent also as heavy oil
（Such as PCE, PCB）And pesticide（DDT）, also have coking product, such as coal tar.
The present invention by vacuum extraction means, extract soil gas, underground water and the oil slick layer in underground pollution region to
Face is separated and is handled, with control and rehabilitating soil and the organic pollution in underground water.
Multiphase extracting refers to the gas and liquid for extracting Polluted area at the same time（Including soil gas, underground water and NAPL）,
Gaseous state, water-soluble state and water-insoluble fluid contaminants from the processing system that underground is drawn on ground.Multi-phase separation is
Refer to the solution-air and Oil-water separation process carried out to extract.
The content of the invention
The object of the present invention is to overcome the problems of the prior art, there is provided a kind of contaminated soil original position multiphase extracting system
System.
To realize above-mentioned technical purpose and the technique effect, the present invention is achieved through the following technical solutions：
A kind of contaminated soil original position multiphase extraction system, the system include multiple extraction wells, lead to above the extraction well
Cross the water and gas dual-purpose that corresponding pipeline is provided with for extracting gas-liquid in well to pump, the water and gas dual-purpose pump connects gas by corresponding pipeline
Water separation device, the gaseous phase outlet of the gas and water separator connect the suction inlet of vacuum pump by pipeline, and the vacuum pump goes out
Mouth connects the entrance of gas treatment equipment, the outlet ambient atmosphere of the gas treatment equipment, the air water by pipeline
The liquid-phase outlet of separator connects the entrance of oily-water seperating equipment, the water-insoluble dirt of the oily-water seperating equipment by pipeline
Contaminate in the high-risk rubbish collecting device of thing outlet, the outlet of the oily-water seperating equipment connects sewage disposal by sewage pump
Stand.
Further, vacuum meter and flowmeter are provided with the pipeline between extraction well and the water and gas dual-purpose pump.
Further, the oily-water seperating equipment removes oil slick layer by gravitational settling mode, and it is low to isolate oil content
Water.
Further, the system further include for each actuating station in control system PLC control devices and be arranged at pumping
Carry and being monitored in well near its vacuum, the underground water drawdown in well, extracting underground water volume, single well flow, inlet flow rate and well
The monitoring device of WATER LEVEL CHANGES parameter.
The beneficial effects of the invention are as follows:
Using technical solution of the present invention, can control with the organic pollution in rehabilitating soil and underground water, and repair
Cycle is short, generally requires the time of 1-24 months, and the factor such as its processing cost and pollutant concentration and project scale is related, specifically
Cost includes the expenditure such as construction investment, equipment investment, operational and administrative expenses.According to domestic pilot scale plant case, 1 is often handled
About 385 yuan of the cost of kilogram NAPL, it is very low, need during operation, by monitoring the sustainable monitoring of system in operational process
Physics and mechanical parameter（The underground water drawdown in vacuum, extraction well in extraction well and monitoring well, extracting underground water volume,
WATER LEVEL CHANGES etc. near single well flow, fan inlet flow, extraction well）, chemical index（Vapor phase contaminants concentration, gas water
Floss hole pollutant concentration, extracting groundwater pollutant concentration, NAPL composition changes etc.）And biological index of correlation（Dissolubility
Gas, nitrogen and phosphorus concentration, BOD, pH value, oxidation-reduction potential, micro organism quantity etc.）.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention.
Figure label explanation：1st, extraction well, 2, water and gas dual-purpose pump, 3, gas and water separator, 4, vacuum pump, 5, gas treatment
Device, 6, oily-water seperating equipment, 7, high-risk rubbish collecting device, 8, sewage pump, 9, Sewage Disposal, 10, vacuum meter, 11, stream
Gauge.
Embodiment
It is below with reference to the accompanying drawings and in conjunction with the embodiments, next that the present invention will be described in detail.
With reference to shown in Fig. 1, a kind of contaminated soil original position multiphase extraction system, the system includes multiple extraction wells 1, described
The top of extraction well 1 pumps 2 by the water and gas dual-purpose that corresponding pipeline is provided with for extracting gas-liquid in well, and the water and gas dual-purpose pump 2 is logical
Corresponding pipeline connection gas and water separator 3 is crossed, the gaseous phase outlet of the gas and water separator 3 connects vacuum pump 4 by pipeline
Suction inlet, the outlet of the vacuum pump 4 connect the entrance of gas treatment equipment 5, the outlet of the gas treatment equipment 5 by pipeline
Ambient atmosphere is connected, the liquid-phase outlet of the gas and water separator 3 connects the entrance of oily-water seperating equipment 6 by pipeline, described
In the high-risk rubbish collecting device 7 of water-insoluble pollutant outlet of oily-water seperating equipment 6, the oily-water seperating equipment 6
Outlet connects Sewage Disposal 9 by sewage pump 8.
Vacuum meter 10 and flowmeter 11 are provided with pipeline between extraction well 1 and the water and gas dual-purpose pump 2.
The oily-water seperating equipment 6 removes oil slick layer by gravitational settling mode, isolates the low water of oil content.
The system further include for each actuating station in control system PLC control devices and be arranged at prison in extraction well 1
Survey its vacuum, the underground water drawdown in well, extracting underground water volume, single well flow, inlet flow rate and well level of ground water nearby
The monitoring device of running parameter.
Processing procedure is as follows in the present embodiment：（1）First, groundwater extraction well 1, well and well spacing Ying Shui are established
In the range of the power radius of influence, NAPL and contaminated underground water in extraction well 1 first pass through pump and are extracted ground, are extracting
The NAPL of 1 near zone of well can be extracted as supply of the underground water to well enters in extraction well together, for there is DNAPL to deposit
Place, the depth of extraction well 1 should reach at the top of water barrier.
（2）After keeping the good seal of whole extraction line, including well head, pipeline, interface etc., extracting to start, according to
11 observed volume of flowmeter, and vacuum and extraction tube position are adjusted according to 10 registration of vacuum meter, make system stable operation.
（3）It is interior into promoting the circulation of qi in gas and water separator 3 by soil gas, underground water and the NAPL of 2 extraction of water and gas dual-purpose pump
Water separates, and the gas phase portion isolated is discharged into gas disposal device 5 by vacuum pump 4, and the liquid phase part isolated then enters oil
In water separation device 6.
（4）By Gravity Separation in oily-water seperating equipment 6, obtained upper strata LNAPL and lower floor DNAPL pollute liquid phase
Thing is then pumped to row up to standard after live Sewage Disposal is handled as dangerous waste disposal, contaminated underground water by sewage
Put.
In the above-described embodiments,（1）Extraction well uses UPVC materials, and hole diameter 25mm, well depth 3.5m, the radius of influence is about
6.0m, wherein screen casing 1m located underground are to the position of underground 3m.（2）The operation of multiphase extracting pilot test system is with single extraction well
Extracting mode carries out in turn one by one, runs 25 days altogether.（3）The daily extraction times of single extraction well are interior when 0.5 is small, 25 days
Accumulation extraction times altogether about 8 it is small when.（4）System vacuum control is in -0.065 MPa, extraction well well head vacuum during extracting
Control is 80-100 liters/min in -0.03MPa, average gas extracting flow（L/min）.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this area
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (3)
1. a kind of contaminated soil original position multiphase extraction system, it is characterised in that the system includes multiple extraction wells（1）, it is described
Extraction well（1）Top is pumped by the water and gas dual-purpose that corresponding pipeline is provided with for extracting gas-liquid in well（2）, the water and gas dual-purpose pump
（2）Gas and water separator is connected by corresponding pipeline（3）, the gas and water separator（3）Gaseous phase outlet connected by pipeline
Vacuum pump（4）Suction inlet, the vacuum pump（4）Outlet gas treatment equipment is connected by pipeline（5）Entrance, the gas
Processing unit（5）Outlet ambient atmosphere, the gas and water separator（3）Liquid-phase outlet pass through pipeline and connect grease point
From device（6）Entrance, the oily-water seperating equipment（6）The water-insoluble high-risk rubbish collecting device of pollutant outlet
（7）In, the oily-water seperating equipment（6）Outlet pass through sewage pump（8）Connect Sewage Disposal（9）, which further includes use
The PLC control devices of each actuating station and extraction well is arranged in control system（1）Ground in interior its vacuum of monitoring, well
The monitoring device of WATER LEVEL CHANGES parameter near lower water drawdown, extracting underground water volume, single well flow, inlet flow rate and well；
The processing procedure of the system is as follows：1）, first, establish groundwater extraction well（1）, well should be in waterpower influence half with well spacing
In the range of footpath, extraction well（1）In NAPL and contaminated underground water first pass through pump and be extracted ground, in extraction well（1）
The NAPL of near zone can be extracted as supply of the underground water to well enters in extraction well together, for the presence of DNAPL
Place, extraction well（1）Depth should reach at the top of water barrier；
2）, keep the good seal of whole extraction line, including well head, pipeline and interface, after extracting starts, according to flowmeter
（11）Observed volume, and according to vacuum meter（10）Registration adjusts vacuum and extraction tube position, makes system stable operation；
3）, pumped by water and gas dual-purpose（2）Soil gas, underground water and the NAPL of extraction are in gas and water separator（3）It is interior into promoting the circulation of qi
Water separates, and the gas phase portion isolated passes through vacuum pump（4）It is discharged into gas treatment equipment（5）, the liquid phase part isolated then into
Enter oily-water seperating equipment（6）It is interior；
4）, liquid phase is in oily-water seperating equipment（6）It is interior by Gravity Separation, obtained upper strata LNAPL and lower floor DNAPL pollutants are made
For dangerous waste disposal, contaminated underground water is then pumped to qualified discharge after live Sewage Disposal is handled by sewage.
2. contaminated soil original position multiphase extraction system according to claim 1, it is characterised in that the extraction well（1）With
Water and gas dual-purpose pumps（2）Between pipeline on be provided with vacuum meter（10）And flowmeter（11）.
3. contaminated soil original position multiphase extraction system according to claim 1, it is characterised in that the oily-water seperating equipment
（6）Oil slick layer is removed by gravitational settling mode, isolates the low water of oil content.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510116797.6A CN104874592B (en) | 2015-03-18 | 2015-03-18 | A kind of contaminated soil original position multiphase extraction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510116797.6A CN104874592B (en) | 2015-03-18 | 2015-03-18 | A kind of contaminated soil original position multiphase extraction system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104874592A CN104874592A (en) | 2015-09-02 |
| CN104874592B true CN104874592B (en) | 2018-05-08 |
Family
ID=53942417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510116797.6A Active CN104874592B (en) | 2015-03-18 | 2015-03-18 | A kind of contaminated soil original position multiphase extraction system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104874592B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107639104A (en) * | 2016-07-22 | 2018-01-30 | 罗伯特·丹尼尔·斯拉贝 | Multiphase soil vapor extraction device |
| CN106944467A (en) * | 2017-05-03 | 2017-07-14 | 上海格林曼环境技术有限公司 | A kind of combined type multiphase extraction system and its method for extracting |
| CN107552549A (en) * | 2017-08-29 | 2018-01-09 | 武汉都市环保工程技术股份有限公司 | A kind of bio- ventilation strengthens multiphase extraction system in situ |
| CN108273836A (en) * | 2017-12-28 | 2018-07-13 | 江苏盖亚环境科技股份有限公司 | A kind of microorganism extracts joint soil and groundwater in-situ remediation system with gas phase |
| CN109738242A (en) * | 2019-01-11 | 2019-05-10 | 成都市环境保护科学研究院 | Volatile organic contaminant acquisition device in soil |
| CN110066919B (en) * | 2019-04-25 | 2020-10-27 | 中国地质科学院矿产综合利用研究所 | Vacuum extraction device and method for ionic rare earth mining |
| CN111570492A (en) * | 2020-05-14 | 2020-08-25 | 上海市政工程设计研究总院（集团）有限公司 | Intelligent multi-phase extraction repair system based on process monitoring and control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09174033A (en) * | 1995-12-27 | 1997-07-08 | Hitachi Plant Eng & Constr Co Ltd | Vacuum extraction and purification of soil |
| CN102974600A (en) * | 2012-11-10 | 2013-03-20 | 华北电力大学 | Periodic-dosing oil-gas-liquid three-phase extraction device and method thereof for repairing petroleum-contaminated soil |
| CN203235746U (en) * | 2013-03-07 | 2013-10-16 | 中国石油天然气集团公司 | In-situ remediation device for unsaturated zone soil with light oil pollution |
| CN204182671U (en) * | 2014-10-24 | 2015-03-04 | 武汉绿之地环保节能科技有限公司 | For the heterogeneous extracting prosthetic device of single pump hydrocone type that contaminated site is repaired |
| CN204620625U (en) * | 2015-03-18 | 2015-09-09 | 江苏盖亚环境工程有限公司 | The heterogeneous extraction system of a kind of contaminated soil original position |
-
2015
- 2015-03-18 CN CN201510116797.6A patent/CN104874592B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09174033A (en) * | 1995-12-27 | 1997-07-08 | Hitachi Plant Eng & Constr Co Ltd | Vacuum extraction and purification of soil |
| CN102974600A (en) * | 2012-11-10 | 2013-03-20 | 华北电力大学 | Periodic-dosing oil-gas-liquid three-phase extraction device and method thereof for repairing petroleum-contaminated soil |
| CN203235746U (en) * | 2013-03-07 | 2013-10-16 | 中国石油天然气集团公司 | In-situ remediation device for unsaturated zone soil with light oil pollution |
| CN204182671U (en) * | 2014-10-24 | 2015-03-04 | 武汉绿之地环保节能科技有限公司 | For the heterogeneous extracting prosthetic device of single pump hydrocone type that contaminated site is repaired |
| CN204620625U (en) * | 2015-03-18 | 2015-09-09 | 江苏盖亚环境工程有限公司 | The heterogeneous extraction system of a kind of contaminated soil original position |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104874592A (en) | 2015-09-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104874592B (en) | A kind of contaminated soil original position multiphase extraction system | |
| CN206444998U (en) | A kind of VOCs-contaminated Soils prosthetic device | |
| CN108314106B (en) | DNAPL (deoxyribonucleic acid-styrene-acrylonitrile copolymer) polluted underground water in-situ remediation method | |
| CN204620625U (en) | The heterogeneous extraction system of a kind of contaminated soil original position | |
| CN204737749U (en) | Volatile organic compounds pollutes normal position prosthetic devices of groundwater | |
| CN204182671U (en) | For the heterogeneous extracting prosthetic device of single pump hydrocone type that contaminated site is repaired | |
| CN107552549A (en) | A kind of bio- ventilation strengthens multiphase extraction system in situ | |
| CN207845303U (en) | Lightweight nonaqueous phase liquid extracts processing system in a kind of underground water | |
| CN109047305A (en) | Chemical pollution place soil and groundwater in-situ remediation system and restorative procedure | |
| CN104801536A (en) | Method for remedying halohydrocarbon contaminated site through combination of chemical leaching and microorganisms | |
| CN108311488B (en) | Clean environmental protection integrated system in oil field | |
| CN111285485A (en) | Groundwater extraction prosthetic devices | |
| CN110627263A (en) | Underground water light non-aqueous phase liquid pollutant cleaning system | |
| CN212976282U (en) | Combined soil and underground water remediation integrated equipment | |
| CN209287958U (en) | Chemical pollution place soil and groundwater in-situ remediation system | |
| CN214289993U (en) | Multiphase extraction repair system based on steam injection strengthening | |
| CN211688569U (en) | Underground water light non-aqueous phase liquid pollutant cleaning system | |
| CN115889434B (en) | Volatile organic contaminated soil groundwater multi-extraction system and method | |
| CN206384854U (en) | One kind, which is drawn water, handles re-injection ground water circulation repair system | |
| CN205035816U (en) | Simple and easy heterogeneous extraction device based on light well point precipitation technology | |
| CN210023200U (en) | Extraction well structure for polluted site LNAPL treatment and multiphase extraction system thereof | |
| CN208321605U (en) | A kind of original position soil and underground water integrate repair system | |
| CN208912793U (en) | Multiphase extraction system for gas station's soil and groundwater remediation | |
| CN206810852U (en) | A kind of dystopy gas phase extracting prosthetic device of Organic Pollution place soil | |
| CN103252342B (en) | Electrodynamic force ultraviolet photolysis in-situ repair device and repair method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 215000 Jiangsu city of Suzhou province Dushu Lake Industrial Park of the Graduate School of Nanjing University A505 room Applicant after: JIANGSU GAIYA ENVIRONMENTAL SCIENCE AND TECHNOLOGY CO., LTD. Address before: 215000 Jiangsu city of Suzhou province Dushu Lake Industrial Park of the Graduate School of Nanjing University A505 room Applicant before: JIANGSU GAIYA ENVIRONMENTAL ENGINEERING CO., LTD. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |