CN203991656U - A kind of organic polluted soil and underground water in-situ repairing device - Google Patents
A kind of organic polluted soil and underground water in-situ repairing device Download PDFInfo
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- CN203991656U CN203991656U CN201420445528.5U CN201420445528U CN203991656U CN 203991656 U CN203991656 U CN 203991656U CN 201420445528 U CN201420445528 U CN 201420445528U CN 203991656 U CN203991656 U CN 203991656U
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Abstract
The utility model provides a kind of organic polluted soil and underground water in-situ repairing device, the utility model has designed a kind of pneumatic source system, molten dispensing system, original position injected system and Injection Well system organic polluted soil and underground water in-situ repairing device of comprising, this device can be repaired organic polluted soil and underground water in zone of saturation and unsaturation layer, it,, by laying injector well injection medicament at Polluted area according to conditions such as polluting distribution, hydrogeology, is injected into target area by molten dispensing system dissolved oxygen medicament with certain pressure and repairs pollutant.This device Injection Well is three-layer sealed by three kinds of encapsulants, can better prevent from gushing slurry when injection pressure is larger, and its integration is good, and quick release is a kind of repairing polluted soil and underground water economy and in-situ repairing device fast.
Description
Technical field
The utility model relates to a kind of organic polluted soil and underground water in-situ repairing device, belongs to soil and groundwater based technique for in-situ remediation field.
Background technology
Contaminated site recovery technique comprises dystopy and the large class of original position two, and therefore, contaminated site prosthetic device is also divided into showering device and in-situ repairing device.Showering mainly comprises that soil excavates and Polluted Soil post processing,, by the means such as mechanical, artificial, makes contaminated soil leave original position, then adopts physics, chemistry and the several different methods such as biological to its post processing, disposal and recycling.Showering technology relates to soil and excavates and transport, and has the danger of secondary pollution in process, exists obviously not enough.Based technique for in-situ remediation is being used widely in recent years.The U.S., since the mid-80, has dropped into substantial contribution for original position soil and underground water reparation, and some new based technique for in-situ remediation arise at the historic moment, as in situ chemical oxidation recovery technique, original position gas phase extraction technique etc.Thereby in situ chemical oxidation technology makes itself and polluter generation chemical reaction realize the object that pollutant removal purifies by in-situ repairing device to adding chemical oxidizing agent in soil and groundwater, and this technology can be processed multiple contaminates thing simultaneously, and treatment effeciency is higher.
At present, had some individuals and unit to carry out some researchs about original position organic contamination site remediation device, existing in situ chemical oxidation injection mode is mainly divided two classes, and a class is that drilling rod injects, and a class is that Injection Well injects.It is that the medicament configuring is injected into underground and is made itself and Polluted Soil and underground water haptoreaction by drilling rod with certain pressure that drilling rod injects.In the patent No., be in US 2002/0143226A1 and the patent No. United States Patent (USP) that is US006457905, to disclose two kinds of in situ chemical oxidation drilling rods to inject prosthetic devices, these two kinds of in-situ repairing devices are injected into chemical oxidizing agent in Polluted Soil by auger stem or injection lance respectively, but these two kinds of molten dispensing systems of in-situ repairing device all too disperse, increased the complexity of design and operation.And drilling rod injects can only the enough oxidation medicaments of continuous disposable injection, when medicament by drilling rod, be injected into not up to standard with target contaminant degraded in soil and underground water after, also need redrilling to inject and be oxidized medicament.A kind of original position soil and underground water prosthetic device are disclosed in the United States Patent (USP) of patent No. NO US 2003/0069142, this device be by the underground baffle plate water conservancy diversion subsurface flow that arranges through the screen casing of solid powdery medicament is housed, after the medicament dissolution in screen casing along with thereby direction of groundwater flow is diffused into target area repairing polluted soil and underground water by flow apron, but ground chin spoiler is set, increased engineering construction difficulty, utilized underground water to dissolve also diffusible oxydation medicament and reduced contaminated soil and underground water remediation efficiency.In the patent No. is the United States Patent (USP) of US 2008/0174571A1, a kind of original position soil and underground water prosthetic device are disclosed, this prosthetic device by Injection Well to underground injection hydrogen peroxide, ozone and compressed air oxidation repairing polluted soil and underground water, but this prosthetic device Injection Well is sealed into the sealing of individual layer bentonite, seal more single, when injection pressure is larger, may occur that seal leakage gushes slurry.
Utility model content
The purpose of this utility model is the problem existing in order to solve above-mentioned prior art.And then provide a kind of improved organic polluted soil and underground water in-situ repairing device.
The purpose of this utility model is achieved through the following technical solutions:
A kind of organic polluted soil and underground water in-situ repairing device comprise four subsystems: i.e. pneumatic source system, molten dispensing system, original position injected system and Injection Well system;
Described pneumatic source system comprises distribution box, air compressor machine, air filtration tank, cable and gas supply line, between described distribution box and air compressor machine, by cable, is connected, and between air compressor machine and air filtration tank, by gas supply line, is connected;
Described molten dispensing system comprises activating agent storage tank, dosing pump, (Pneumatic blender and charging aperture are joined in top to confection agitator tank, confection discharging opening is joined in bottom), threeway, confection carrier pipe, activating agent carrier pipe and water charge line, between described activating agent storage tank and the entrance of dosing pump, be connected with activating agent carrier pipe, dosing delivery side of pump is connected with the charging aperture of confection agitator tank respectively by activating agent carrier pipe, described water charge line is connected with the charging aperture of confection agitator tank, the confection discharging opening of described two confection agitator tanks is connected with threeway respectively by confection carrier pipe, the port of export of air filtration tank is connected with dosing pump and Pneumatic blender respectively by gas supply line,
Described original position injected system comprises injection pump, confection carrier pipe, snap joint, part flow arrangement, Pressure gauge and water meter, the entrance of described injection pump is connected with threeway by confection carrier pipe, inject delivery side of pump be connected with one end of confection carrier pipe (injection pump exports Pressure gauge is housed), the other end of confection carrier pipe is connected with one end of water meter, the other end of water meter is connected with one end of confection carrier pipe, the other end of confection carrier pipe is by snap joint be connected with part flow arrangement main line (being equipped with Pressure gauge) on part flow arrangement, part flow arrangement branch line is connected with one end of confection carrier pipe by snap joint, the other end of confection carrier pipe is connected with Injection Well by snap joint and crossover sub, the port of export of air filtration tank is connected with injection pump by gas supply line.
Described Injection Well system comprises that crossover sub, quartz sand, bentonite, cement and bentonite batch mixing (its mass ratio is 1: 1), white pipe, screen casing and well are stifled, it is stifled that the lower end of described screen casing is connected with well, the upper end of screen casing is connected with the lower end of white pipe, the white upper end of pipe and one end of crossover sub are connected, the other end of crossover sub is connected with snap joint, snap joint is connected with confection carrier pipe, and in the boring outside injection well casing, loading successively from top to bottom filler is quartz sand, bentonite, cement and bentonite batch mixing (mass ratio 1: 1) and concrete.
The utility model is for defect that at present some organic polluted soils and underground water in-situ repairing device face, designed a kind of pneumatic source system that comprises, molten dispensing system, original position injected system and Injection Well system organic polluted soil and underground water prosthetic device, this device can be repaired soil and groundwater organic contamination in saturated and unsaturation layer, this device does not arrange ground chin spoiler, and by distributing according to polluting at Polluted area, the conditions such as hydrogeology are laid injector well injection medicament, this device is not by underground water pharmaceutical dissolution, but be injected into target area by molten dispensing system dissolved oxygen medicament with certain pressure, repair pollutant, the non-individual layer sealing of this device Injection Well, and it is three-layer sealed by three kinds of encapsulants, can better prevent from gushing when injection pressure is larger slurry problem, this device can be repaired deep layer Polluted Soil and underground water, integration is good, and quick release, a kind of repairing polluted soil and underground water economy and prosthetic device fast.
The beneficial effects of the utility model are:
One: this prosthetic device design operation is relatively simple, Injection Well is connected employing snap joint mode and connects with confection carrier pipe, and dismounting simple operations is flexible.
Two: this prosthetic device integration is relatively better, be superior to and need the molten equipped original position injected system of putting of a plurality of medicaments, medicament mixes more abundant.
Three: this prosthetic device scope of application is wide in range, be superior to original position gas phase extraction device and can only process unsaturation layer Polluted Soil, this system can also be taken into account saturated contaminated soil and underground water reparation, also saved contaminated off-gas treating apparatus, be superior to some Soil tillage systems and can only process top layer Polluted Soil, this system can be processed deep layer contaminated soil and underground water.
Four: this prosthetic device Injection Well can be used for a long time, solved with injecting drilling rod injection medicament and can not be interrupted injection problem, Injection Well adopts bentonite, cement: bentonite batch mixing (mass ratio 1: 1) and concrete are three-layer sealed, when larger injection pressure, can effectively prevent from gushing slurry.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of organic polluted soil of the utility model and underground water in-situ repairing device;
Fig. 2 is the structural representation of Injection Well 22;
Fig. 3 is the partial enlarged drawing of Injection Well 22.
Reference numeral 1 in figure is distribution box, 2 is air compressor machine, 3 is air filtration tank, 4 is activating agent storage tank, 5 is dosing pump, 6 is confection agitator tank, 7 is Pneumatic blender, 8 is charging aperture, 9 is confection discharging opening, 10 is threeway, 11 is injection pump, 12 is pump discharge pressure table, 13 is water meter, 14 is confection carrier pipe, 15 is snap joint, 16 is part flow arrangement arm valve, 17 is gas supply line, 18 is part flow arrangement, 19 is cable, 20 is activating agent carrier pipe, 21 is water charge line, 22 is Injection Well, 23 is crossover sub, 24 is concrete, 25 is cement and bentonite compound (its mass ratio is 1: 1), 26 is bentonite, 27 is white pipe, 28 is quartz sand, 29 is screen casing, 30 for well stifled, 31 is quick joint dismantling claw, 32 is injection pressure table.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail: the present embodiment is implemented take technical solutions of the utility model under prerequisite, provided detailed embodiment, but protection domain of the present utility model is not limited to following embodiment.
As shown in FIG. 1 to 3, a kind of organic polluted soil that the present embodiment is related and underground water in-situ repairing device, comprise four subsystems: i.e. pneumatic source system, molten dispensing system, original position injected system and Injection Well system;
Described pneumatic source system comprises distribution box 1, air compressor machine 2, air filtration tank 3, cable 19 and gas supply line 17, between described distribution box 1 and air compressor machine 2, by cable 19, is connected, and between air compressor machine 2 and air filtration tank 3, by gas supply line 17, is connected;
Described molten dispensing system comprises activating agent storage tank 4, dosing pump 5, confection agitator tank 6, Pneumatic blender 7, threeway 10, confection carrier pipe 14, activating agent carrier pipe 20 and water charge line 21, between described activating agent storage tank 4 and the entrance of dosing pump 5, be connected with activating agent carrier pipe 20, the outlet of dosing pump 5 is connected with the charging aperture 8 of confection agitator tank 6 by activating agent carrier pipe 20, on two confection agitator tanks 6, be equipped with Pneumatic blender 7, the bottom of two confection agitator tanks 6 is equipped with medicament discharging opening 9, described water charge line 21 is connected with the charging aperture 8 of confection agitator tank 6, the medicament discharging opening 9 of described two confection agitator tanks 6 is connected with threeway 10 respectively by confection carrier pipe 14, the port of export of air filtration tank 3 is connected with dosing pump 5 and Pneumatic blender 7 respectively by gas supply line 17,
Described original position injected system comprises injection pump 11, confection carrier pipe 14, snap joint 15, part flow arrangement 18, Pressure gauge 12/32 and water meter 13, the entrance of described injection pump 11 is connected with threeway 10 by confection carrier pipe 14, the two ends of part flow arrangement 18 are connected with respectively snap joint 15, the outlet of injection pump 11 is connected with part flow arrangement 18 house stewards' snap joint 15 by confection carrier pipe 14, the snap joint 15 of part flow arrangement 18 branched pipes is connected with Injection Well 22 by confection carrier pipe 14, the port of export of air filtration tank 3 is connected with injection pump 11 by gas supply line 17.
Described Injection Well system comprises crossover sub 23, cement and bentonite batch mixing (mass ratio 1: 1) 25, bentonite 26, white pipe 27, quartz sand 28, screen casing 29 and well stifled 30, the lower end of described screen casing 29 is connected with well stifled 30, the upper end of screen casing 29 is connected with the lower end of white pipe 27, the upper end of white pipe 27 is connected with one end of crossover sub 23, the other end of crossover sub 23 with by snap joint 15, be connected with confection carrier pipe 14, in boring outside Injection Well 22 pipes, loading successively from top to bottom filler is quartz sand 28, bentonite 26, cement and bentonite batch mixing 25 (mass ratio 1: 1) and concrete 24.
Described gas supply line 17 adopts pvc pipe.
Described activating agent carrier pipe 20 and confection carrier pipe 14 are the acid and alkali-resistance pipe of liner steel wire.
The volume of described two confection agitator tanks 6 is 1m
3.
The stirrer paddle of described Pneumatic blender 7 is Double-layer stirring paddle leaf, and is acid and alkali-resistance stainless steel.
The present embodiment is a kind of for organic polluted soil and underground water in-situ repairing device, this device provides source of the gas by air compressor machine, by injection pump to the oxidation medicament that injects into well injection and configure according to a certain ratio, the screen casing of oxidation medicament by Injection Well be to the diffusion of well surrounding and soil and groundwater pollutant haptoreaction, thereby it is degraded to, do not have a material of harmfulness.The security of first check system equipment before injecting, connect distribution box power supply, open air compressor machine, opening dosing pump is transported to a certain amount of activating agent in activating agent storage tank in confection agitator tank, then by dog-house a dead lift on confection agitator tank, add a certain amount of oxidation medicament, then by water charge line, in confection agitator tank, add certain water gaging constant volume, open confection agitator tank top Pneumatic blender and fully mix dissolving by medicament, the confection carrier pipe that part flow arrangement branch line is connected is connected with Injection Well with crossover sub by snap joint, open the valve of part flow arrangement main line Ji Yi branch, open confection agitator tank lower valve, open again and regulate injection pump pneumatic operated valve to carry out original position injection.Injection process need consider hydrogeology, the field conditions such as injection pressure by a small quantity repeatedly mode inject, bolus injection amount and injection length need according to the situation, during injection, record pump discharge pressure, injection rate, injection pressure and injection length, after having injected a bite well, first open another branch line valve of part flow arrangement, and close rapidly part flow arrangement and noted branch line valve, after branch line has all injected, first close injection pump pneumatic operated valve, close again part flow arrangement main line and branch line valve, each branch line Injection Well snap joint of quick detach, and connect the Injection Well that next group need inject and carry out next round injection, in injection process, original position of two medicament agitator tanks is injected, one is made up a prescription, alternately operating.
Transport hub, the North China project original position injection project of take is example, and this contaminated site is xylene pollution, and before repairing, in soil, xylene concentration is 34.98～593mg/kg, and reparation desired value is 5mg/kg, and Polluted area area is 250m
2polluted area is divided into shallow-layer and pollutes (4～7m) and deep layer pollution (6～9m), bury of groundwater 20m, Polluted area is unsaturation layer, contaminated area soil layer be take sand and silt as main, according to polluting, distribute and hydrogeological situation, determine distribution and the screen casing position of Injection Well, 17 mouthfuls of Injection Wells are laid at scene altogether, shallow-layer contaminated area is laid 7 mouthfuls, the Injection Well degree of depth is 7m, screen casing position 4～7m, and deep layer contaminated area is laid 10 mouthfuls, wherein 9 mouthfuls of Injection Well degree of depth are 9m, screen casing position 6～9m, 1 mouthful of center Injection Well well depth 11.5m, screen casing position 5.5～11.5m.Injection mode adopts on a small quantity repeatedly mode to inject, and for this contaminated site 1#-17# Injection Well, individual well total injection scope is 1.046～4.171m
3, injection pressure scope is 0.01～0.08Mpa scope, bolus injection weight range is 0.093～0.153m
3/ time, individual well injection rate every day scope is 0.163～0.438m
3/ day, on-the-spot to after Injection Well single injection, rest and reorganize and be again injected to design injection rate after 20 minutes. take 4# as example, injection process is as shown in Table 1.From on-the-spot ejection situation, inject respond well, no swell slurry.After repairing, reaction is 40 days, the repairing effect of representative point position as shown in Table 2:
Table one: 4# injection process record sheet
Table two: original position is injected xylene pollution site remediation effect (dimethylbenzene is repaired desired value 5mg/kg)
The above; it is only the preferably specific embodiment of the utility model; these specific embodiment are all the different implementations based under the utility model general idea; and protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (5)
1. organic polluted soil and a underground water in-situ repairing device, comprise four subsystems: i.e. pneumatic source system, molten dispensing system, original position injected system and Injection Well system; It is characterized in that,
Described pneumatic source system comprises distribution box, air compressor machine, air filtration tank, cable and gas supply line, between described distribution box and air compressor machine, by cable, is connected, and between air compressor machine and air filtration tank, by gas supply line, is connected;
Described molten dispensing system comprises activating agent storage tank, dosing pump, confection agitator tank, Pneumatic blender, threeway, confection carrier pipe, activating agent carrier pipe and water charge line, between described activating agent storage tank and the entrance of dosing pump, be connected with activating agent carrier pipe, dosing delivery side of pump is connected with the charging aperture of confection agitator tank by activating agent carrier pipe, confection agitator tank is provided with Pneumatic blender, the bottom of confection agitator tank is equipped with medicament discharging opening, described water charge line is connected with the charging aperture of confection agitator tank, the medicament material outlet of described two confection agitator tanks is connected with threeway respectively by confection carrier pipe, the port of export of air filtration tank is connected with dosing pump and Pneumatic blender respectively by gas supply line,
Described original position injected system comprises injection pump, confection carrier pipe, snap joint, part flow arrangement, water meter and Pressure gauge, the entrance of described injection pump is connected with threeway by confection carrier pipe, injecting delivery side of pump is connected with one end of confection carrier pipe, the other end of confection carrier pipe is connected with one end of water meter, the other end of water meter is connected with one end of confection carrier pipe, the other end of confection carrier pipe is connected with part flow arrangement main line by snap joint, part flow arrangement branch line is connected with one end of confection carrier pipe by snap joint, the other end of confection carrier pipe is connected with Injection Well by snap joint and crossover sub, the port of export of air filtration tank is connected with injection pump by gas supply line,
Described Injection Well system comprises that crossover sub, cement and bentonite batch mixing, bentonite, white pipe, quartz sand, injection screen casing and well are stifled, it is stifled that the lower end of described screen casing is connected with well, the upper end of screen casing is connected with the lower end of white pipe, the white upper end of pipe and one end of crossover sub are connected, the other end of crossover sub is connected with confection carrier pipe by snap joint, and in the boring outside injection well casing, loading successively from top to bottom filler is quartz sand, bentonite, cement and bentonite batch mixing and concrete.
2. a kind of organic polluted soil according to claim 1 and underground water in-situ repairing device, is characterized in that, described gas supply line adopts pvc pipe.
3. a kind of organic polluted soil according to claim 1 and underground water in-situ repairing device, is characterized in that, described activating agent carrier pipe and confection carrier pipe are the acid and alkali-resistance pipe of liner steel wire.
4. a kind of organic polluted soil according to claim 1 and underground water in-situ repairing device, is characterized in that, the volume of described confection agitator tank is 1m
3.
5. a kind of organic polluted soil according to claim 1 and underground water in-situ repairing device, is characterized in that, the stirrer paddle of described Pneumatic blender is Double-layer stirring paddle leaf, and be acid and alkali-resistance stainless steel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420445528.5U CN203991656U (en) | 2014-08-08 | 2014-08-08 | A kind of organic polluted soil and underground water in-situ repairing device |
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| CN201420445528.5U CN203991656U (en) | 2014-08-08 | 2014-08-08 | A kind of organic polluted soil and underground water in-situ repairing device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104174643A (en) * | 2014-08-08 | 2014-12-03 | 北京建工环境修复股份有限公司 | In-situ restoration device and in-situ restoration method of organic polluted soil and underground water |
| CN105312314A (en) * | 2015-11-05 | 2016-02-10 | 北京建工环境修复股份有限公司 | Repairing system and method for heavy metal-organic combined polluted soil and underground water |
| CN105652849A (en) * | 2016-04-01 | 2016-06-08 | 中新苏州工业园区环保技术有限公司 | Time-shared agent feeding control pipeline for wastewater treatment |
| CN105964678A (en) * | 2016-06-23 | 2016-09-28 | 北京建工环境修复股份有限公司 | Soil and groundwater in-situ remediation system and method through in-situ infusion and high-pressure jet grouting injection |
| CN107096791A (en) * | 2017-05-09 | 2017-08-29 | 江苏盖亚环境科技股份有限公司 | A kind of nanoscale multiple spot injection unitary module smart machine in situ |
| CN110227711A (en) * | 2019-07-12 | 2019-09-13 | 北京环丁环保大数据研究院 | A kind of soil remediation method and system |
| CN112845571A (en) * | 2021-01-06 | 2021-05-28 | 东北农业大学 | Chemical agent applying device for environmental remediation |
| CN114226444A (en) * | 2021-12-23 | 2022-03-25 | 上海久澄环境工程有限公司 | In-situ injection purification device and process for heavy metal and organic matter contaminated soil |
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2014
- 2014-08-08 CN CN201420445528.5U patent/CN203991656U/en not_active Withdrawn - After Issue
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104174643A (en) * | 2014-08-08 | 2014-12-03 | 北京建工环境修复股份有限公司 | In-situ restoration device and in-situ restoration method of organic polluted soil and underground water |
| CN105312314A (en) * | 2015-11-05 | 2016-02-10 | 北京建工环境修复股份有限公司 | Repairing system and method for heavy metal-organic combined polluted soil and underground water |
| CN105652849A (en) * | 2016-04-01 | 2016-06-08 | 中新苏州工业园区环保技术有限公司 | Time-shared agent feeding control pipeline for wastewater treatment |
| CN105964678A (en) * | 2016-06-23 | 2016-09-28 | 北京建工环境修复股份有限公司 | Soil and groundwater in-situ remediation system and method through in-situ infusion and high-pressure jet grouting injection |
| WO2017219792A1 (en) * | 2016-06-23 | 2017-12-28 | 北京建工环境修复股份有限公司 | In situ repair system and method for in situ injection - high pressure rotary jet injection in soil and groundwater |
| US10787865B2 (en) | 2016-06-23 | 2020-09-29 | Bceg Environmental Remediation Co., Ltd | In-situ injection of soil and groundwater—high pressure rotary jet grouting in-situ remediation system and method |
| CN107096791A (en) * | 2017-05-09 | 2017-08-29 | 江苏盖亚环境科技股份有限公司 | A kind of nanoscale multiple spot injection unitary module smart machine in situ |
| CN110227711A (en) * | 2019-07-12 | 2019-09-13 | 北京环丁环保大数据研究院 | A kind of soil remediation method and system |
| CN112845571A (en) * | 2021-01-06 | 2021-05-28 | 东北农业大学 | Chemical agent applying device for environmental remediation |
| CN112845571B (en) * | 2021-01-06 | 2021-10-22 | 东北农业大学 | Chemical agent applying device for environmental remediation |
| CN114226444A (en) * | 2021-12-23 | 2022-03-25 | 上海久澄环境工程有限公司 | In-situ injection purification device and process for heavy metal and organic matter contaminated soil |
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