CN203715452U - Circulation well system for removing volatile organic compound in underground water - Google Patents
Circulation well system for removing volatile organic compound in underground water Download PDFInfo
- Publication number
- CN203715452U CN203715452U CN201420066584.8U CN201420066584U CN203715452U CN 203715452 U CN203715452 U CN 203715452U CN 201420066584 U CN201420066584 U CN 201420066584U CN 203715452 U CN203715452 U CN 203715452U
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- underground water
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Abstract
The utility model relates to a circulation well system for removing a volatile organic compound in underground water, and aims at providing a circulation well system applicable to different soil. By adopting the system, the problems of hydraulic transmission energy loss, poor soil permeability and the like are effectively solved, the phenomenon of short-cut air flow caused by over-large injection pressure is avoided, meanwhile, the effect radius can be effectively improved, and the remediation effect is significant. The system disclosed by the utility model comprises an outer well, an inner wall, a gas injection system, a gas extraction system and a medicament spray system, wherein the inner well is arranged inside the outer well; the gas injection system is used for introducing a gas into the water inside the well to aerate; one part of the gas doped with organic pollutants after being aerated is discharged by an activated carbon adsorption device after being extracted by the gas extraction system; the other part enters the outer well; and the medicament spray system is used for spraying medicament to the outer well.
Description
Technical field
The utility model relates to the based technique for in-situ remediation field that belongs to underground water and soil, particularly relates to a kind of for removing the circulation well system of underground water volatile organic matter.
Background technology
Along with the development of urbanization process, many chemical industry, agricultural chemicals enterprise start resettlement, and the soil and groundwater of resettlement Hou Yuan plant area has been subject to pollution in various degree, after needing to repair, could be used for commercial land, house or other construction.Pollutent in soil and groundwater particularly organic pollutant has that content is low, kind is many, refractory reason, endangers the features such as large.Wherein not only teratogenesis, carcinogenic, mutagenesis of many organic pollutants, can also enter into ambient atmosphere environment by volatilization, and people's healthy and orthobiosis in serious harm.
For the underground water reparation in volatility organic contamination place, widely used is AS(original position air aeration at present) technology.AS technology is directly injected air to the saturation zone of soil, and needed injection pressure must overcome the static pressure of decanting point underground water and the pressure of soil capillary, could form gas channel, and easily causes air flow shortcircuit.The repairing effect of AS technology also has very large relation with soil type, is not suitable for the place of soil permeability poor (as clay).
Utility model content
The technical problems to be solved in the utility model is to provide and is a kind ofly applicable to circulation well system from sand to clay soil type directly to injecting gas underground water, the loss of waterpower transmitting energy, the poor problem of soil permeability are effectively solved, avoid the phenomenon of the air flow shortcircuit causing because injection pressure is excessive, can effectively improve the radius of influence, the significant circulation well system of repairing effect simultaneously.
For reaching above-mentioned purpose, the utility model is a kind of for removing the circulation well system of underground water volatile organic matter, described system comprises outer well, interior well, gas injection system, gas extraction system and medicament sprinkling system, described interior well is placed in described outer well, described gas injection system is for passing into gas aeration to described interior well well water, after aeration, discharge through absorbent charcoal adsorber absorption after by the extracting of described gas extraction system doped with the described gas part of organic pollutants, another part enters described outer well, described medicament sprinkling system is for spraying liquid to described outer well.
On the wherein said interior well borehole wall, have upper strata screen casing and lower floor's screen casing, make water body circulation in described interior well and described outer well, screen casing bottom, described upper strata is lower than the well water water surface.
Near wherein said upper strata screen casing and described lower floor screen casing, fill gravel between described Nei Jing and outer well, between described upper strata screen casing and described lower floor screen casing, fill concrete is between described Nei Jing and outer well.
Wherein gas injection system comprises pneumatic pump, valve and aeration tube, and described aeration tube one end connects described pneumatic pump through described valve, and the other end inserts interior well and is placed in screen casing place of described lower floor.
Wherein said aeration tube head is provided with aeration head, for uniform aeration.
Wherein said gas extraction system comprises extraction pump, valve and extraction pipe, described absorbent charcoal adsorber is led to after being connected with described extraction pump by described valve in described extraction pipe one end, the other end inserts interior well and is placed on well water face, and described interior well well head sealing arranges.
Wherein said medicament sprinkling system comprises killer injecting pump, valve and medicine-pouring pipe, and described medicine-pouring pipe one end is connected with described killer injecting pump through described valve, and the other end inserts described outer well and is placed on well water face, and described outer well wellhead sealing arranges.
Wherein also comprise the medicament shower that is positioned at outer well, described medicament shower is connected and is placed on well water face with medicine spraying tube in described outer well.
Wherein also comprise near the gas extraction well system of described circulation well that is positioned at, described gas extraction well system comprises extraction well, extraction tube, extraction pump and absorbent charcoal adsorber, described extraction tube one end connects described extraction pump, the other end is placed in described extraction well, and described extraction pump connects described absorbent charcoal adsorber.
Wherein said interior well is UPVC pipe or stainless steel tube.
The utility model has compared with prior art been obtained following technique effect:
The utility model provides a kind of and is applicable to circulation well system from sand to clay soil type directly to injecting gas underground water, the loss of waterpower transmitting energy, the poor problem of soil permeability are effectively solved, avoid the phenomenon of the air flow shortcircuit causing because injection pressure is excessive, can effectively improve the radius of influence, the significant circulation well system of repairing effect simultaneously; Increase medicament sprinkling system, can strengthen the treatment effect of circulation well system; Bound gas extraction well system has realized the removal of soil saturation band and the organic contamination of unsaturation band volatility simultaneously.
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Brief description of the drawings
Fig. 1 the utility model circulation well apparatus structure schematic diagram;
The piping diagram of Fig. 2 medicament shower.
Description of reference numerals: 1-lower floor screen casing; 2-upper strata screen casing; 3-groundwater velocity instrument; 4-pneumatic pump; 5-aeration head; 6-absorbent charcoal adsorber; 7-pharmacy jar; 8-medicament shower; 9-aeration tube; 10-extraction pump; 11-killer injecting pump; The outer well of 12-; Well in 13-; 14-valve; 15-valve; 16-valve; 17-medicine-pouring pipe; 18-concrete; 19-gravel; 20-extraction pipe; 21-gas extraction well; 22-extraction pump; 23-absorbent charcoal adsorber; 24-unsaturation band; 25-ground water table; 26-saturation zone.
Embodiment
Below in conjunction with drawings and Examples, technical characterictic and the advantage with other above-mentioned to the utility model are described in more detail.
As shown in Figure 1, beat the outer well 12 of a bite, make the shaft bottom of outer well 12 be positioned at organism reparation saturation zone to be repaired, afterwards the interior well 13 of stainless steel is placed in to outer well 12, interior well 13 shaft bottoms are a little more than outer well 12 shaft bottoms, interior well 13 bottom sealings, it is around lower floor's screen casing 1, it is lower floor's screen casing 2 that top is positioned at organism reparation unsaturation band place, lower floor's screen casing 2 bottoms are not less than the well water water surface, upper strata screen casing 2 and lower floor's screen casing 1 are set and make interior well 13 and outer well 12 well water circulations, upper strata screen casing 2 and lower floor's screen casing 1 side are filled in (being that in keeping, well 13 circulates with the well water of outer well 12 without the object of concrete 18) between interior well 13 and outer well 12 with gravel 19, between upper strata screen casing 2 and lower floor's screen casing 1, be filled between interior well 13 and outer well 12 with concrete 18, to realize the fixing of interior well 13.Aeration tube 9 one end of gas injection system connect pneumatic pump 4 through valve 14, and the other end is with aeration head 5, and aeration head 5 inserts interior well 13 and is placed in screen casing 1 place of described lower floor, absorbent charcoal adsorber 6 is led to after being connected with extraction pump 10 by valve 15 in extraction pipe 20 one end of gas extraction system, the other end inserts interior well 13 and is placed on well water face, interior well 13 well head sealings are arranged, medicine-pouring pipe 17 one end of medicament sprinkling system are connected with 11 killer injecting pumps through valve 16, the other end is provided with medicament shower 8, medicament shower 8 inserts outer well 12 and is placed on well water face, outer well 12 wellhead sealing settings, a bite or many implications body extraction well system are set apart from described circulation well system 3～10m place, described gas extraction well system extraction tube one end connects extraction pump 22, the other end is placed in extraction well 21, extraction pump 22 connects absorbent charcoal adsorber 23.
While using this system to repair, open valve 14, inject the mixed gas of air or ozone and air to lower floor's screen casing 1 place of aeration tube 9 by pneumatic pump 4, the interior aeration tube 9 of interior well 13 and aeration head 5, in well, produce a large amount of bubbles, cause the ground water table in the interior underground water density reduction of lower floor's screen casing 1 place's well and upper strata screen casing 2 place's wells to raise; The underground water at lower floor's screen casing 1 place enters in well by lower floor's screen casing 1, and the underground water that is rich in gas flows out outside well by upper strata screen casing 2, and bubble is at the interior formation upstream of interior well 13, and in uphill process, the pollutent in underground water is caught or is oxidized; Control the rate of injection of pneumatic pump 4 at 55～105m
3/ h.
The underground water that is rich in gas is realized gas-liquid separator at upper strata screen casing 2 places, and a part of gas is collected and processed by extraction pump 10 and through absorbent charcoal adsorber 6, and another part gas permeation upper strata screen casing 2 and gravel 19 enter soil unsaturation band 24.
When injecting gas, open valve 15, use extraction pump 10 with 1.6～2.5m
3the extracting speed of/h is collected being rich in the organic mixed gas evaporating, and gas enters after absorbent charcoal adsorber 6 purifies and discharges through extraction pipe 20, regularly the gac in absorbent charcoal adsorber 6 is changed.
System operation is stable after 24 hours, measures the flow velocity u of the circulating groundwater that flows out well body by groundwater velocity instrument 3, according to the area A of underground water volume V in well and upper strata screen casing, estimates the loop cycle T=V/Au of native system.
Open valve 16, at upper strata screen casing 2 peripheral spray oxygenant, microbiobacterial agent or nutritive substance etc., medicament along with circulating groundwater flows to into well body surrounding environment, is effectively removed residual contaminants after medicine-pouring pipe 17 enters medicament shower 8 sprays; Determine the pharmaceutical quantities (Pollutant levels × circulating water flow × 2 loop cycle) of spraying, the volume of voids that bolus volume is 5%～50%, spray pressure 0～1MPa according to organic concentration and recirculated water flow velocity; Spraying frequency is to spray once every a loop cycle; Not valve-off 16 when spraying agent.
The mixed gas of the air injecting by gas injection system or ozone and air, a part is collected by extraction pump 10, and a part enters in unsaturation band 24, promotes aerobic degradation and the oxygenolysis of organic microorganism in unsaturation band 24; Can combine gas extraction well 21, with extraction pump 22, the organism evaporating in unsaturation band 24 be collected, discharge after absorbent charcoal adsorber 23 purifies, controls gas extracting speed 10～100m
3/ h, the organic contamination of simultaneously repairing saturation zone 26 and unsaturation band 24.
Adopt said apparatus to repair polluted underground water, mainly comprise the following steps:
1) beat the above circulation well of a bite at Polluted area, well depth is near near source of pollution belows (be that lower floor's screen casing 1 is placed in saturation zone, upper strata screen casing 2 is placed in unsaturation band);
2) beat gas extraction well more than a bite at the unsaturation band of Same Site, the spacing of extraction well and circulation well is 3～10m;
3) start aerator, start gas gathering system simultaneously, underground water flows into from lower floor's screen casing, and upper strata screen casing flows out, and a mixed gas part that contains organic gas and air/ozone is collected, and another part enters into soil unsaturation band;
4) recycle system stable after, by flowing out cycle of operation of groundwater velocity estimating system of well body;
5) extractor of startup gas extraction well, with 10～100m
3the speed of/h in unsaturation band, evaporate and by upper strata screen casing enter unsaturation band organism collect and process, prevent that organism from evaporateing in ambient atmosphere;
6) start medicament sprinkling system, to peripheral oxygenant, microbiobacterial agent or the nutritive substance of spraying of upper strata screen casing, the medicament spraying is with groundwater flow diffusion mobility, the residual contaminants of repairing in radius is removed, the treatment effect of consolidation system, reduces thereby sprinkling oxidation medicament etc. can also carry out oxidation removal to the organism from the mixed gas of upper strata screen casing inflow unsaturation band the organic gas that enters unsaturation band.
Circulation well system of the present utility model, can reach more than 92% for the underground environment remediation efficiency of organic contamination.
Above-described embodiment is described preferred implementation of the present utility model; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skill in the art make the technical solution of the utility model, all should fall in the definite protection domain of the utility model claims.
Claims (10)
1. one kind for removing the circulation well system of underground water volatile organic matter, it is characterized in that: described system comprises Wai Jing, Nei Jing, gas injection system, gas extraction system and medicament sprinkling system, described interior well is placed in described outer well, described gas injection system is for passing into gas aeration to described interior well well water, after aeration, discharge through absorbent charcoal adsorber absorption after by the extracting of described gas extraction system doped with the described gas part of organic pollutants, another part enters described outer well, and described medicament sprinkling system is for spraying liquid to described outer well.
2. according to claim 1 for removing the circulation well system of underground water volatile organic matter, it is characterized in that: on the described interior well borehole wall, have upper strata screen casing and lower floor's screen casing, make water body circulation in described interior well and described outer well, screen casing bottom, described upper strata is lower than the well water water surface.
3. according to claim 2 for removing the circulation well system of underground water volatile organic matter, it is characterized in that: near described upper strata screen casing and described lower floor screen casing, fill gravel between described Nei Jing and outer well, between described upper strata screen casing and described lower floor screen casing, fill concrete is between described Nei Jing and outer well.
4. according to claim 3 for removing the circulation well system of underground water volatile organic matter, it is characterized in that: gas injection system comprises pneumatic pump, valve and aeration tube, described aeration tube one end connects described pneumatic pump through described valve, and the other end inserts interior well and is placed in screen casing place of described lower floor.
5. according to claim 4 for removing the circulation well system of underground water volatile organic matter, it is characterized in that: described aeration tube head is provided with aeration head, for uniform aeration.
6. according to claim 3 for removing the circulation well system of underground water volatile organic matter, it is characterized in that: described gas extraction system comprises extraction pump, valve and extraction pipe, described absorbent charcoal adsorber is led to after being connected with described extraction pump by described valve in described extraction pipe one end, the other end inserts interior well and is placed on well water face, and described interior well well head sealing arranges.
7. according to claim 3 for removing the circulation well system of underground water volatile organic matter, it is characterized in that: described medicament sprinkling system comprises killer injecting pump, valve and medicine-pouring pipe, described medicine-pouring pipe one end is connected with described killer injecting pump through described valve, the other end inserts described outer well and is placed on well water face, and described outer well wellhead sealing arranges.
8. according to claim 7 for removing the circulation well system of underground water volatile organic matter, it is characterized in that: also comprise the medicament shower that is positioned at outer well, described medicament shower is connected and is placed on well water face with medicine spraying tube in described outer well.
9. according to claim 1 for removing the circulation well system of underground water volatile organic matter, it is characterized in that: also comprise near the gas extraction well system of described circulation well that is positioned at, described gas extraction well system comprises extraction well, extraction tube, extraction pump and absorbent charcoal adsorber, described extraction tube one end connects described extraction pump, the other end is placed in described extraction well, and described extraction pump connects described absorbent charcoal adsorber.
10. according to claim 1 for removing the circulation well system of underground water volatile organic matter, it is characterized in that: described interior well is UPVC pipe or stainless steel tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420066584.8U CN203715452U (en) | 2014-02-14 | 2014-02-14 | Circulation well system for removing volatile organic compound in underground water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420066584.8U CN203715452U (en) | 2014-02-14 | 2014-02-14 | Circulation well system for removing volatile organic compound in underground water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203715452U true CN203715452U (en) | 2014-07-16 |
Family
ID=51154620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420066584.8U Withdrawn - After Issue CN203715452U (en) | 2014-02-14 | 2014-02-14 | Circulation well system for removing volatile organic compound in underground water |
Country Status (1)
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| CN (1) | CN203715452U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103864263A (en) * | 2014-02-14 | 2014-06-18 | 北京鼎实环境工程有限公司 | Circulating well system for removing volatile organic compounds in underground water |
| CN105254041A (en) * | 2015-11-02 | 2016-01-20 | 中国环境科学研究院 | Aeration groundwater pollution remediation device and method |
| CN105521990A (en) * | 2016-01-28 | 2016-04-27 | 浙江博世华环保科技有限公司 | In-situ remediation system and remediation method for organic pollution site of light non-aqueous phase liquids (LNAPLs) |
| CN106830579A (en) * | 2017-04-17 | 2017-06-13 | 中源晟朝股份有限公司 | For volatile organic contaminant repair system and method in underground water |
| CN109675922A (en) * | 2018-12-27 | 2019-04-26 | 武汉瑞景环境修复工程有限公司 | The method of in-situ oxidation, gas phase extracting combined system and rehabilitating soil |
| CN110695068A (en) * | 2019-10-17 | 2020-01-17 | 苏州大研环境科技有限公司 | Underground water circulating repair method |
| WO2020192177A1 (en) * | 2019-03-26 | 2020-10-01 | 清华大学 | Soil and groundwater linkage processing device and processing method therefor |
| CN113617812A (en) * | 2021-07-08 | 2021-11-09 | 苏州市宏宇环境科技股份有限公司 | Extraction and injection integrated device |
-
2014
- 2014-02-14 CN CN201420066584.8U patent/CN203715452U/en not_active Withdrawn - After Issue
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103864263A (en) * | 2014-02-14 | 2014-06-18 | 北京鼎实环境工程有限公司 | Circulating well system for removing volatile organic compounds in underground water |
| CN103864263B (en) * | 2014-02-14 | 2016-06-01 | 北京鼎实环境工程有限公司 | A kind of circulation well system for removing volatile organic matter in underground water |
| CN105254041A (en) * | 2015-11-02 | 2016-01-20 | 中国环境科学研究院 | Aeration groundwater pollution remediation device and method |
| CN105521990A (en) * | 2016-01-28 | 2016-04-27 | 浙江博世华环保科技有限公司 | In-situ remediation system and remediation method for organic pollution site of light non-aqueous phase liquids (LNAPLs) |
| CN105521990B (en) * | 2016-01-28 | 2018-12-25 | 浙江博世华环保科技有限公司 | The in-situ remediation system and restorative procedure in a kind of LNAPLs organic contamination place |
| CN106830579A (en) * | 2017-04-17 | 2017-06-13 | 中源晟朝股份有限公司 | For volatile organic contaminant repair system and method in underground water |
| CN106830579B (en) * | 2017-04-17 | 2019-07-12 | 中源晟朝股份有限公司 | For volatile organic contaminant repair system and method in underground water |
| CN109675922A (en) * | 2018-12-27 | 2019-04-26 | 武汉瑞景环境修复工程有限公司 | The method of in-situ oxidation, gas phase extracting combined system and rehabilitating soil |
| WO2020192177A1 (en) * | 2019-03-26 | 2020-10-01 | 清华大学 | Soil and groundwater linkage processing device and processing method therefor |
| CN110695068A (en) * | 2019-10-17 | 2020-01-17 | 苏州大研环境科技有限公司 | Underground water circulating repair method |
| CN113617812A (en) * | 2021-07-08 | 2021-11-09 | 苏州市宏宇环境科技股份有限公司 | Extraction and injection integrated device |
| CN113617812B (en) * | 2021-07-08 | 2022-08-30 | 苏州市宏宇环境科技股份有限公司 | Extraction and injection integrated device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140716 Effective date of abandoning: 20160601 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |