CN110125165A - A kind of showering technique for VOCs/SVOCs contaminated soil - Google Patents
A kind of showering technique for VOCs/SVOCs contaminated soil Download PDFInfo
- Publication number
- CN110125165A CN110125165A CN201910468979.8A CN201910468979A CN110125165A CN 110125165 A CN110125165 A CN 110125165A CN 201910468979 A CN201910468979 A CN 201910468979A CN 110125165 A CN110125165 A CN 110125165A
- Authority
- CN
- China
- Prior art keywords
- vocs
- svocs
- air lift
- furnace
- contaminated soil
- 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.)
- Granted
Links
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
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The contaminated soil of VOCs/SVOCs is first crushed and is sent into revolution air lift furnace by a kind of showering technique for VOCs/SVOCs contaminated soil, then by CO2CO out of revolution air lift furnace2Injection pipe is ejected into the furnace chamber of revolution air lift furnace, comes into full contact with contaminated soil, VOCs/SVOCs is stripped out, soil outflow revolution air lift furnace under the action of the screw propeller and self gravity turned round in air lift furnace after purification；The gas stripped out is sent to photochemical catalyst decomposer after cloth bag separator removal is out of dust, and VOCs/SVOCs is resolved into CO completely2And H2O, CO2CO is recycled into after compressor compresses2It is recycled in injection pipe, the present invention realizes environmentally friendly, the efficient reparation of VOCs/SVOCs contaminated soil.
Description
Technical field
The present invention relates to field of environment engineering technology, and in particular to a kind of dystopy for VOCs/SVOCs contaminated soil is repaired
It returns to work skill.
Background technique
Be constantly progressive with the development of economy with science and technology, we enjoy industrialization bring it is convenient while, also face
Face more and more problems, especially environmental problem.The organic pollution problem of soil is extensive concern in worldwide
One of environmental problem, most organic pollutant is indissoluble, toxic, mutagenic, even carcinogenic, to the mankind
Health and the ecosystem have huge harm.Organic pollutant according to its volatility can be divided into volatile organic matter (VOCs),
Semi-volatile organic matter (SVOCs) and fixedness organic matter, and biggish for Health Impact is VOCs and SVOCs.
The source of organic contaminants in soil includes industry leakage and overflows, and oil depot and chemical storage leakage, pesticide are indiscriminate
With, the improper disposition of house refuse, refuse landfill and garbage stacking yard etc..Soil remediation, which refers to, utilizes physics, chemistry and biology
Method transfer, absorb, degradation and conversion soil in pollutant, so that its concentration is reduced to acceptable level, or have toxic
Harmful pollutant is converted into harmless substance.But the features such as inhomogeneities and medium diversity due to soil, contaminated soil
Reparation is just more challenging and uncertain, repairs difficulty and also accordingly increases.Currently, domestic and international application is most widely organic
Soil restoring technology is soil vapor extraction and pyrolysis adsorption technology, and treatment effect, cost and period all meet city to soil
The requirement of reparation.China's soil remediation industry just starts to walk, processing technique immature development, especially for organic pollution
Soil remediation, there is presently no fairly perfect renovation techniques.
Summary of the invention
In order to overcome above-mentioned existing soil remediation there are the shortcomings that, the purpose of the present invention is to provide one kind be used for VOCs/
The showering technique of SVOCs contaminated soil realizes environmentally friendly, the efficient reparation of VOCs/SVOCs contaminated soil.
In order to achieve the above object, the technical scheme adopted by the invention is as follows:
A kind of showering technique for VOCs/SVOCs contaminated soil, first by the contaminated soil powder of VOC s/SVOCs
In broken feeding revolution air lift furnace 3, then by CO2CO out of revolution air lift furnace 32Injection pipe 32 is ejected into the furnace chamber of revolution air lift furnace 3
It is interior, it is come into full contact with contaminated soil, VOCs/SVOCs is stripped out, spiral of the soil in revolution air lift furnace 3 pushes away after purification
Outflow revolution air lift furnace 3 under the action of into paddle 31 and self gravity；The gas stripped out is got rid of by cloth bag separator 4
It is sent to photochemical catalyst decomposer 5 after dust, VOCs/SVOCs is resolved into CO completely2And H2O, CO2It is compressed by compressor 6
After be recycled into CO2It is recycled in injection pipe 32.
A kind of showering technique for VOCs/SVOCs contaminated soil, comprising the following steps:
The first step, by through be mechanically pulverized partial size be not more than 2 mesh VOCs/SVOCs contaminated soil, by conveyer belt 1 with
5m3The rate of/h is sent into revolution air lift furnace 3, is then uniformly divided under the agitation of the screw propeller 31 in revolution air lift furnace 3
Cloth is in the furnace chamber of revolution air lift furnace 3；
Pressure is greater than the CO of 1MPa by second step2From CO2With 10m in storage tank 23The rate of/h is sent to revolution air lift furnace 3
Interior CO2In injection pipe 32, pass through CO2Injection pipe 32 makes CO2Gas is evenly distributed in revolution air lift furnace 3, until contaminated soil
Pollution concentration reach design purification standard, VOCs/SVOCs is by CO2The upper outlet discharge from revolution air lift furnace 3 is carried, by gas
Soil discharges from the lower outlet of revolution air lift furnace 3 after purification after mentioning；
Revolution 3 upper outlet of air lift furnace discharge is contained CO by third step2It is passed through with the gas of VOCs/SVOCs and dust
Into bag filter 4, dust is retained down by the cloth bag 41 in bag filter 4, dust is under bag filter 4
Outlet outflow, the gas after dedusting enter back into photocatalysis Decomposition device 5, and VOCs/SVOCs is divided in photocatalysis Decomposition device 5
Solution is at carbon dioxide and water, CO2CO is transported to after the compression of compressor 62Injection pipe 32 is recycled.
The CO2The lower section of injection pipe 32 opens up micropore, and micro-pore diameter 5mm, micropore is in CO2Aperture on injection pipe 32
Rate is 35%.
Interval, which is laid with, in the photocatalysis Decomposition device 5 is coated with nano-TiO2Carbon cloth 51 and LED ultraviolet lamp 52, apply
There is nano-TiO2Carbon cloth 51 and LED ultraviolet lamp 52 be laid with 10 layers respectively.
Continuous rotation movement is driven by motor in screw propeller 31 in the revolution air lift furnace 3, and revolution air lift furnace 3 inclines
Oblique angle is set as 15 °.
The bag filter 4 is equipped with rapping apparatus, and rapping apparatus uninterruptedly removes retention dust.
Compared with prior art, the invention has the benefit that
1. the present invention uses CO2VOCs/SVOCs in air lift contaminated soil, due to CO2The particularity of itself can incite somebody to action
VOCs/SVOCs is carried out from contaminated soil, realizes environmentally friendly, the efficient reparation of VOCs/SVOCs contaminated soil.
2. screw propeller 31 is arranged in revolution air lift furnace 3 in the present invention, it can allow contaminated soil in revolution air lift furnace 3
It is evenly distributed, is conducive to improve CO2Air lift effect.In addition, 15 ° of inclination angle is arranged in revolution air lift furnace 3, after guaranteeing purification
Soil can flow out revolution air lift furnace 3.
3. the present invention use photocatalysis treatment VOCs/SVOCs, it is light-catalysed high-efficient and processing VOCs/SVOCs after
Product is carbon dioxide and water, not will cause secondary pollution to environment；In addition, the CO that photocatalytic process generates2With used in air lift
CO2It can be recycled after the compression of compressor 6.
Detailed description of the invention
Fig. 1 is the process flow chart of the embodiment of the present invention.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
Referring to Fig.1, a kind of showering technique for VOCs/SVOCs contaminated soil, comprising the following steps:
The first step, the contaminated soil (concentration of VOCs/SVOCs that 2 mesh VOCs/SVOCs will be not more than through partial size is mechanically pulverized
For 2100-2600mg/kg), by conveyer belt 1 with 5m3The rate of/h is sent into revolution air lift furnace 3, then in revolution air lift furnace 3
It is evenly distributed under the agitation of interior screw propeller 31 in the furnace chamber of revolution air lift furnace 3；
Continuous rotation movement is driven by motor in screw propeller 31 in the revolution air lift furnace 3, and revolution air lift furnace 3 inclines
Oblique angle is set as 15 °, guarantees that purified soil can be flowed out from revolution air lift furnace 3；
Pressure is greater than the CO of 1MPa by second step2From CO2With 10m in storage tank 23The rate of/h is sent to revolution air lift furnace 3
Interior CO2In injection pipe 32, pass through CO2Injection pipe 32 makes CO2Gas is evenly distributed in revolution air lift furnace 3, extracts contaminated soil
In VOCs/SVOCs, by 30min air lift, the total concentration of the VOCs/SVOCs of contaminated soil reach 50mg/Kg hereinafter,
VOCs/SVOCs is by CO2Carry from revolution air lift furnace 3 upper outlet discharge, after the purification after being stripped soil from revolution gas
Propose the lower outlet discharging of furnace 3；
The CO2The lower section of injection pipe 32 opens up micropore, and micropore is blocked by soil particle in order to prevent, and micro-pore diameter is
5mm, micropore is in CO2Percent opening on injection pipe 32 is 35%；
Revolution 3 upper outlet of air lift furnace discharge is contained CO by third step2With the gas of VOCs/SVOCs and a small amount of dust
It is passed into bag filter 4, is retained down dust by the cloth bag 41 in bag filter 4, bag filter 4 is equipped with vibration
Device is beaten, rapping apparatus uninterruptedly removes retention dust, flows out dust from the lower outlet of bag filter 4, the gas after dedusting
Body enters back into photocatalysis Decomposition device 5, and VOCs/SVOCs is broken down into carbon dioxide and water in photocatalysis Decomposition device 5,
CO2CO is transported to after the compression of compressor 62Injection pipe 32 is recycled；
Interval, which is laid with, in the photocatalysis Decomposition device 5 is coated with nano-TiO2Carbon cloth 51 and LED ultraviolet lamp 52, apply
There is nano-TiO2Carbon cloth 51 and LED ultraviolet lamp 52 be laid with 10 layers respectively, guarantee that VOCs/SVOCs can be completely broken down.
Embodiment described above, only preferred embodiments of the present invention will be described, not to of the invention
Range is defined, and without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technology of the invention
The various modifications and improvement that scheme is made are each fallen in the protection scope that claims of the present invention determines.
Claims (6)
1. a kind of showering technique for VOCs/SVOCs contaminated soil, it is characterised in that: first by the dirt of VOC s/SVOCs
It contaminates soil and crushes and be sent into revolution air lift furnace (3), then by CO2CO out of revolution air lift furnace (3)2Injection pipe (32) is ejected into back
It in the furnace chamber for turning air lift furnace (3), is come into full contact with contaminated soil, VOCs/SVOCs is stripped out, soil is turning round after purification
Outflow revolution air lift furnace (3) under the action of screw propeller (31) and self gravity in air lift furnace (3)；The gas stripped out
Photochemical catalyst decomposer (5) are sent to after cloth bag separator (4) removal is out of dust, VOCs/SVOCs is resolved into completely
CO2And H2O, CO2CO is recycled into after compressor (6) compression2Injection pipe recycles in (32).
2. a kind of showering technique for VOCs/SVOCs contaminated soil, which comprises the following steps:
The first step, the contaminated soil that 2 mesh VOCs/SVOCs will be not more than through partial size is mechanically pulverized, by conveyer belt (1) with 5m3/h
Rate be sent into revolution air lift furnace (3) in, then revolution air lift furnace (3) in screw propeller (31) agitation under uniformly divide
Cloth is in the furnace chamber of revolution air lift furnace (3)；
Pressure is greater than the CO of 1MPa by second step2From CO2With 10m in storage tank (2)3The rate of/h is sent to revolution air lift furnace (3)
Interior CO2In injection pipe (32), pass through CO2Injection pipe (32) makes CO2Gas is evenly distributed in revolution air lift furnace (3), until dirty
The pollution concentration of dye soil reaches design purification standard, and VOCs/SVOCs is by CO2Carry the upper outlet row from revolution air lift furnace (3)
Out, soil discharges from the lower outlet of revolution air lift furnace (3) after the purification after being stripped；
Revolution air lift furnace (3) upper outlet discharge is contained CO by third step2It is passed into the gas of VOCs/SVOCs and dust
In bag filter (4), dust is retained down by the cloth bag (41) in bag filter (4), dust is from bag filter
(4) lower outlet outflow, the gas after dedusting enters back into photocatalysis Decomposition device (5), in photocatalysis Decomposition device (5)
VOCs/SVOCs is broken down into carbon dioxide and water, CO2CO is transported to after compressor (6) compression2Injection pipe (32) circulation makes
With.
3. a kind of showering technique for VOCs/SVOCs contaminated soil according to claim 2, it is characterised in that:
The CO2Micropore is opened up below injection pipe (32), micro-pore diameter 5mm, micropore is in CO2Percent opening on injection pipe (32) is
35%.
4. a kind of showering technique for VOCs/SVOCs contaminated soil according to claim 2, it is characterised in that:
Interval is laid with and is coated with nano-TiO in the photocatalysis Decomposition device (5)2Carbon cloth (51) and LED ultraviolet lamp (52), be coated with and receive
Rice TiO2Carbon cloth (51) and LED ultraviolet lamp (52) be laid with 10 layers respectively.
5. a kind of showering technique for VOCs/SVOCs contaminated soil according to claim 2, it is characterised in that:
Continuous rotation movement is driven by motor in screw propeller (31) in revolution air lift furnace (3), turns round the inclination of air lift furnace (3)
Angle is set as 15 °.
6. a kind of showering technique for VOCs/SVOCs contaminated soil according to claim 2, it is characterised in that:
The bag filter (4) is equipped with rapping apparatus, and rapping apparatus uninterruptedly removes retention dust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910468979.8A CN110125165B (en) | 2019-05-31 | 2019-05-31 | Ectopic remediation process for VOCs/SVOCs contaminated soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910468979.8A CN110125165B (en) | 2019-05-31 | 2019-05-31 | Ectopic remediation process for VOCs/SVOCs contaminated soil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110125165A true CN110125165A (en) | 2019-08-16 |
| CN110125165B CN110125165B (en) | 2021-07-27 |
Family
ID=67583461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910468979.8A Active CN110125165B (en) | 2019-05-31 | 2019-05-31 | Ectopic remediation process for VOCs/SVOCs contaminated soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110125165B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2265192A (en) * | 1991-07-01 | 1993-02-11 | University Of Connecticut, The | Removing volatile organic compounds from a contaminated gas stream |
| CN102350438A (en) * | 2011-07-15 | 2012-02-15 | 沈阳环境科学研究院 | System for continuous desorption and purification of VOCs in soil |
| CN103230932A (en) * | 2013-04-11 | 2013-08-07 | 华北电力大学 | A device for remediation of organic contaminated soil by using supercritical CO2 fluid and a remediation method |
| CN106178875A (en) * | 2016-08-16 | 2016-12-07 | 南京格洛特环境工程股份有限公司 | A kind of technique of uviol lamp intensive treatment volatile organic waste gas |
| CN106693634A (en) * | 2015-11-17 | 2017-05-24 | 江苏中科睿赛污染控制工程有限公司 | Device and method for treating VOCs (Volatile Organic Compounds) |
| CN107282622A (en) * | 2017-08-17 | 2017-10-24 | 科海思（北京）科技有限公司 | A kind of device and method of rehabilitating soil VOCs pollutions |
| CN107661898A (en) * | 2016-07-28 | 2018-02-06 | 常州唯楚环保科技有限公司 | A kind of apparatus and method of overcritical multi-fluid renovation of organic pollution soil |
| CN107983765A (en) * | 2017-12-19 | 2018-05-04 | 中石化炼化工程（集团）股份有限公司 | Organic pollution soil repair system and technique |
| CN108870424A (en) * | 2018-07-17 | 2018-11-23 | 长沙奥邦环保实业有限公司 | A kind of soil restoring device and its restorative procedure |
| CN108889072A (en) * | 2018-07-24 | 2018-11-27 | 彭圆 | A kind of method of industry VOCs exhaust-gas treatment |
-
2019
- 2019-05-31 CN CN201910468979.8A patent/CN110125165B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2265192A (en) * | 1991-07-01 | 1993-02-11 | University Of Connecticut, The | Removing volatile organic compounds from a contaminated gas stream |
| CN102350438A (en) * | 2011-07-15 | 2012-02-15 | 沈阳环境科学研究院 | System for continuous desorption and purification of VOCs in soil |
| CN103230932A (en) * | 2013-04-11 | 2013-08-07 | 华北电力大学 | A device for remediation of organic contaminated soil by using supercritical CO2 fluid and a remediation method |
| CN106693634A (en) * | 2015-11-17 | 2017-05-24 | 江苏中科睿赛污染控制工程有限公司 | Device and method for treating VOCs (Volatile Organic Compounds) |
| CN107661898A (en) * | 2016-07-28 | 2018-02-06 | 常州唯楚环保科技有限公司 | A kind of apparatus and method of overcritical multi-fluid renovation of organic pollution soil |
| CN106178875A (en) * | 2016-08-16 | 2016-12-07 | 南京格洛特环境工程股份有限公司 | A kind of technique of uviol lamp intensive treatment volatile organic waste gas |
| CN107282622A (en) * | 2017-08-17 | 2017-10-24 | 科海思（北京）科技有限公司 | A kind of device and method of rehabilitating soil VOCs pollutions |
| CN107983765A (en) * | 2017-12-19 | 2018-05-04 | 中石化炼化工程（集团）股份有限公司 | Organic pollution soil repair system and technique |
| CN108870424A (en) * | 2018-07-17 | 2018-11-23 | 长沙奥邦环保实业有限公司 | A kind of soil restoring device and its restorative procedure |
| CN108889072A (en) * | 2018-07-24 | 2018-11-27 | 彭圆 | A kind of method of industry VOCs exhaust-gas treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110125165B (en) | 2021-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206746314U (en) | A kind of foul gas processing unit | |
| CN208287764U (en) | A kind of chemical emission processing unit that absorbing liquid recycles | |
| CN207401353U (en) | A kind of spray painting and drying tunnel waste gas treatment equipment | |
| KR20120119485A (en) | Treatment method on reusing of construction waste for acquiring of high quality recycling aggregate and combustible material | |
| CN203853005U (en) | VOCs (Volatile Organic Compounds) waste gas purification device | |
| CN103768929A (en) | Purification treatment device for flue gas generated in garbage incineration process, and application of purification treatment device | |
| CN105032179A (en) | Apparatus and process for treating synthetic leather exhaust gas | |
| CN104998511A (en) | Tail gas purification and environmental protection treatment system of cremator | |
| CN206793295U (en) | A kind of industrial mix waste gas processing equipment | |
| CN202289850U (en) | Smoke burning disposal system for sludge | |
| CN202146898U (en) | Treatment equipment for municipal solid waste incineration fly ash | |
| CN204973576U (en) | Administer device of synthetic leather waste gas | |
| CN209828596U (en) | Novel UV exhaust-gas treatment of paint spray booth device | |
| CN110125165A (en) | A kind of showering technique for VOCs/SVOCs contaminated soil | |
| CN204502704U (en) | Gas cleaning plant | |
| CN104524913A (en) | Treatment method of waste gas generated in polyolefin wood plastic granulation | |
| CN205796953U (en) | A kind of biological deodorizing tower | |
| CN205164386U (en) | Cremator tail -gas clean -up environmental protection processing system | |
| CN102218442B (en) | Method and equipment for processing flying ashes generated during urban refuse burning | |
| CN103230737A (en) | Device and process for performing purification treatment on stinky tail gas in waste water of gas production | |
| CN105920972A (en) | Exhaust gas recovery and purification system applied to tyre reclaimed rubber production | |
| CN206724193U (en) | Incineration flue gas of household garbage innocuity disposal system | |
| CN202620912U (en) | Device with automatic cleaning function for removing paint mist and repast waste gas oil mist | |
| CN110394042A (en) | Reclaimed rubber waste gas purification apparatus and method | |
| CN210676330U (en) | Complete high-efficiency treatment equipment for mercury-containing or organic pollution solid waste |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |