CN110375316A - A kind of soil difficulty volatile organic compounds restorative procedure - Google Patents
A kind of soil difficulty volatile organic compounds restorative procedure Download PDFInfo
- Publication number
- CN110375316A CN110375316A CN201910659697.6A CN201910659697A CN110375316A CN 110375316 A CN110375316 A CN 110375316A CN 201910659697 A CN201910659697 A CN 201910659697A CN 110375316 A CN110375316 A CN 110375316A
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- China
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- soil
- volatile organic
- organic compounds
- restorative procedure
- kiln
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/14—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of contaminated soil, e.g. by oil
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2203/00—Furnace arrangements
- F23G2203/20—Rotary drum furnace
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/24—Contaminated soil; foundry sand
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of soil difficulty volatile organic compounds restorative procedures, pass through heated well itself, so that heat transfer is toward external diffusion, reach periphery on the contaminant collecting to ground of boiling temperature or more to be handled, utilize the high temperature in cement rotary kiln, gas stops for a long time, thermal capacity is big, thermal stability is good, alkaline environment, the features such as without waste sludge discharge, organic material contaminated soil enters cement rotary kiln, under the hot conditions of cement kiln, organic pollutant in contaminated soil is converted into inorganic compound, effectively inhibit the discharge of acidic materials, burn curing process contaminated soil, realize higher removing standard, multiple compounds can be handled simultaneously, various difficult volatile organic matters can be removed, quickly repair, utilize high temperature in cement rotary kiln, gas stops for a long time, thermal capacity is big, thermal stability is good, alkaline environment , without waste sludge discharge the features such as, reach not only using soil, but also can steadily and surely, efficiently dispose the purpose of pollutant.
Description
Technical field
The present invention relates to technical field of soil remediation, more particularly to a kind of soil difficulty volatile organic compounds reparation side
Method.
Background technique
Soil be it is for the survival of mankind basic, after soil is contaminated, it is contaminated to will cause growth plant therein, flows through
River it is contaminated, and then influence animal and the mankind, consequence is hardly imaginable, and with the development of industry, soil contamination problem is increasingly
Seriously, expanding economy is not only hindered, even more affects the life and health of the mankind, the improvement of soil pollution has become can not
The project despised.
The type of organic pollution mainly has: pesticide type organic, petroleum hydrocarbon organic matter, halogenated hydrocarbon organic matter, more
Cycloaromatics, Polychlorinated biphenyls etc., difficult volatile organic contaminant boiling point is higher, and physical and chemical performance is relatively stable, is not easy chemical
Or biodegrade, it is easy to accumulate in the environment, has the characteristics that high toxicity, fat-solubility.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of soil difficulty volatile organic compounds restorative procedures.
In order to solve the above technical problems, one technical scheme adopted by the invention is that:
A kind of soil difficulty volatile organic compounds restorative procedure is provided, comprising the following steps:
(1) heat transfer heating system generates hot gas, is passed into pollution soil layer by pipeline of digging a well, and carries out heat with Polluted Soil
Amount exchange；
(2) gas phase extraction system includes extraction well, extraction pipe and the vacuum pump in the setting of conduction-convection problem periphery, makes week
It is handled on the contaminant collecting to ground of boiling temperature or more while reaching；
(3) exhaust gas collected is thoroughly clear by the organic matter in exhaust gas by the pollutant treatment system arranged on ground
It removes, waste water qualified discharge after the processing of corresponding waste water treatment system；
(4) closed vehicles drive contaminated soil is to soil pretreatment system, feeding system sent after measuring contaminated soil to
Rotary cement kiln system carries out high temperature incineration；
(5) oxygen, dust, nitrogen oxides, carbon dioxide, moisture and the temperature of monitoring system at regular intervals monitoring discharge.
In a preferred embodiment of the present invention, the hot air temperature is at 800 DEG C or less.
In a preferred embodiment of the present invention, the pollutant that the gas phase extraction system is up to boiling temperature or more is received
Collect on ground, successively passes through separator, heat exchanger to pollutant treatment system.
In a preferred embodiment of the present invention, the heat transfer heating system includes heated well and distribution box system.
In a preferred embodiment of the present invention, the heat-insulated dress for preventing heat from shedding is laid with above the heated well
It sets.
In a preferred embodiment of the present invention, device for monitoring temperature and pressure monitor dress are set in the pollution soil layer
It sets.
In a preferred embodiment of the present invention, the soil pretreatment system include closed storage facilities, screening facility,
Exhaust treatment system, the tail gas that pretreatment system generates qualified discharge after exhaust treatment system.
In a preferred embodiment of the present invention, the feeding system includes storaging bucket, plate-type feeding, belt metering
Scale, elevator, feeding process are in closed environment.
In a preferred embodiment of the present invention, the rotary cement kiln system includes preheater, rotary cement kiln, kiln
Tail high-temperature blower, tertiary-air pipe, rotary kiln burner, grate cooler, kiln head bag dust collector, screw conveyor, slot type conveying
Machine.
In a preferred embodiment of the present invention, the rotary cement kiln system high temperature incineration temperature is greater than 800 DEG C, burns
Time is greater than 20 seconds.
The beneficial effects of the present invention are: providing a kind of soil difficulty volatile organic compounds restorative procedure, pass through heated well sheet
Body utilizes so that heat transfer toward external diffusion, reaches periphery on the contaminant collecting to ground of boiling temperature or more and handled
High temperature in cement rotary kiln, gas stop for a long time, thermal capacity is big, thermal stability is good, alkaline environment, without spies such as waste sludge discharges
Point, organic material contaminated soil enter cement rotary kiln, and under the hot conditions of cement kiln, the organic pollutant in contaminated soil turns
Inorganic compound is turned to, the discharge of acidic materials is effectively inhibited, burns curing process contaminated soil, realizes higher removing mark
Standard can handle multiple compounds simultaneously, can remove various difficult volatile organic matters, quickly repair, using in cement rotary kiln
High temperature, gas for a long time stop, thermal capacity is big, thermal stability is good, alkaline environment, without waste sludge discharge the features such as, reach and both utilized
Soil, and can steadily and surely, efficiently dispose the purpose of pollutant.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, in which:
Fig. 1 is the heat transfer heating system of one preferred embodiment of soil difficulty volatile organic compounds restorative procedure of the invention
System, gas phase extraction system, pollutant treatment system structure diagram；
Fig. 2 is the rotary cement kiln system of one preferred embodiment of soil difficulty volatile organic compounds restorative procedure of the invention
Structural schematic diagram.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Fig. 1 to Fig. 2 is please referred to, the embodiment of the present invention includes:
A kind of soil difficulty volatile organic compounds restorative procedure, comprising the following steps:
(1) heat transfer heating system generates hot gas, is passed into pollution soil layer by pipeline of digging a well, and carries out heat with Polluted Soil
Amount exchange；
(2) gas phase extraction system includes extraction well, extraction pipe and the vacuum pump in the setting of conduction-convection problem periphery, makes week
It is handled on the contaminant collecting to ground of boiling temperature or more while reaching；
(3) exhaust gas collected is thoroughly clear by the organic matter in exhaust gas by the pollutant treatment system arranged on ground
It removes, waste water qualified discharge after the processing of corresponding waste water treatment system；
(4) closed vehicles drive contaminated soil is to soil pretreatment system, feeding system sent after measuring contaminated soil to
Rotary cement kiln system carries out high temperature incineration；
(5) oxygen, dust, nitrogen oxides, carbon dioxide, moisture and the temperature of monitoring system at regular intervals monitoring discharge.
In step (1), heat transfer heating system generates hot gas, and is passed into pollution soil layer by pipeline of digging a well,
Heat is carried out with Polluted Soil to exchange, hot gas control temperature at 800 DEG C hereinafter, be soil vitrification in order to prevent, heat transfer heating
System includes heated well 1 and distribution box system 2, and distribution box system 2 and heated well 1 are electrically connected to heated well 1 for electric heating.
In step (2), extraction well, setting extraction pipe 3 and vacuum inside extraction well are laid on conduction-convection problem periphery
Pump, the pollutant that vacuum pump makes periphery reach boiling temperature or more is collected on ground by extraction pipe 3, successively by separation
Device 4, heat exchanger 5 to pollutant treatment system carry out pollutant process.
In step (3), pollutant treatment system includes wastewater treatment equipment 6 and emission-control equipment 7, and collection is given up
Gas thoroughly removes the organic matter in exhaust gas by the emission-control equipment 7 arranged on ground, and waste water is by corresponding waste water
Manage qualified discharge after device 6 is handled.
Preferably, it is laid with the heat-proof device 8 for preventing heat from shedding above heated well, pollutes setting temperature in soil layer and supervises
Control device 9 and pressure monitoring device 10.
In step (4), soil pretreatment system carries out in closed environment, including closed storage facilities, screening plant,
Exhaust treatment system, the tail gas that pretreatment system generates qualified discharge after exhaust treatment system, it is preferable that closed storage is set
It applies including inflating green, screening plant includes screening machine, and exhaust treatment system includes activated carbon adsorption system.
When disposing contaminated soil, it is transported to the contaminated soil emptying point of inflating green with closed vehicle by storage greenhouse,
Secondary pollution caused by the evolution of volatile organic matter and fugitive dust when to avoid discharging, discharge zone will install deduster, setting additional
The closed measure such as dustproof shade, after the completion of discharging, discharge zone will be in closed state.
Feeding system mainly includes storaging bucket, plate-type feeding, belt weigher, elevator, and entire feeding process is in
In closed environment, pollutant and diffussion of dust in feeding process is avoided to cause secondary pollution into air.
Contaminated soil enters the metering of belt weigher through plate-type feeding, and the soil after metering is by elevator by closed defeated
It send device to enter feeding point in kiln and carries out high temperature incineration, that completes contaminated soil entirely enters kiln process.
Rotary cement kiln system includes preheater, rotary cement kiln, kiln tail high-temperature blower, tertiary-air pipe, rotary kiln combustion
Burner, grate cooler, kiln head bag dust collector, screw conveyor, tray conveyer.
Multiple feeding points are arranged in rotary cement kiln system, including main burning feeding point, wicket cover feeding point, dore furnace feed intake
Point, kiln tail smoke-box feeding point, increase in pipeline feeding point, raw material grind feeding point, are carried out according to the characteristic of the pollutant of contaminated soil
The selection of feeding point selects kiln tail smoke-box feeding point as feeding point difficult volatile organic contaminant, and contaminated soil carries out
Cement rotary kiln, high temperature incineration temperature are greater than 800 DEG C, burn the time greater than 20 seconds, guarantee the organic pollutant in contaminated soil
Completely burned and thoroughly decomposition.
The beneficial effect of soil difficulty volatile organic compounds restorative procedure of the present invention is: it is organic to provide a kind of soil difficulty volatilization
Pollutant restorative procedure, by heated well itself, so that heat transfer makes periphery reach the pollution of boiling temperature or more toward external diffusion
Object is collected on ground and is handled, using high temperature, the gas in cement rotary kiln stop for a long time, thermal capacity is big, thermostabilization
The good, alkaline environment of property, without waste sludge discharge the features such as, organic material contaminated soil enters cement rotary kiln, in the high temperature item of cement kiln
Under part, the organic pollutant in contaminated soil is converted into inorganic compound, effectively inhibits the discharge of acidic materials, burns solidification
Contaminated soil is handled, higher removing standard is realized, multiple compounds can be handled simultaneously, it is organic that various difficult volatility can be removed
Object is quickly repaired, using high temperature in cement rotary kiln, gas stop for a long time, thermal capacity is big, thermal stability is good, alkaline environment,
The features such as without waste sludge discharge, reaches not only using soil, but also can steadily and surely, efficiently dispose the purpose of pollutant.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (10)
1. a kind of soil difficulty volatile organic compounds restorative procedure, which comprises the following steps:
(1) heat transfer heating system generates hot gas, is passed into pollution soil layer by pipeline of digging a well, and carries out heat friendship with Polluted Soil
It changes；
(2) gas phase extraction system includes extraction well, extraction pipe and the vacuum pump in the setting of conduction-convection problem periphery, reaches periphery
It is handled on contaminant collecting to ground more than to boiling temperature；
(3) exhaust gas collected thoroughly removes the organic matter in exhaust gas by the pollutant treatment system arranged on ground, gives up
Water qualified discharge after the processing of corresponding waste water treatment system；
(4) to soil pretreatment system, feeding system is sent after measuring contaminated soil to cement closed vehicles drive contaminated soil
Rotary system carries out high temperature incineration；
(5) oxygen, dust, nitrogen oxides, carbon dioxide, moisture and the temperature of monitoring system at regular intervals monitoring discharge.
2. soil difficulty volatile organic compounds restorative procedure according to claim 1, which is characterized in that the hot air temperature
At 800 DEG C or less.
3. soil difficulty volatile organic compounds restorative procedure according to claim 1, which is characterized in that the gas phase extracting
System is up on the contaminant collecting to ground of boiling temperature or more, successively passes through separator, heat exchanger to waste water and gas
Processing system.
4. soil difficulty volatile organic compounds restorative procedure according to claim 1, which is characterized in that the heat transfer adds
Hot systems include heated well and distribution box system.
5. soil difficulty volatile organic compounds restorative procedure according to claim 4, which is characterized in that on the heated well
Side is laid with the heat-proof device for preventing heat from shedding.
6. soil difficulty volatile organic compounds restorative procedure according to claim 1, which is characterized in that the pollution soil layer
Middle setting device for monitoring temperature and pressure monitoring device.
7. soil difficulty volatile organic compounds restorative procedure according to claim 1, which is characterized in that the soil is located in advance
Reason system includes closed storage facilities, screening facility, exhaust treatment system, and the tail gas that pretreatment system generates passes through vent gas treatment
Qualified discharge after system.
8. soil difficulty volatile organic compounds restorative procedure according to claim 1, which is characterized in that the feeding system
Including storaging bucket, plate-type feeding, belt weigher, elevator, feeding process is in closed environment.
9. soil difficulty volatile organic compounds restorative procedure according to claim 1, which is characterized in that the cement revolution
Kiln system include preheater, rotary cement kiln, kiln tail high-temperature blower, tertiary-air pipe, rotary kiln burner, grate cooler,
Kiln head bag dust collector, screw conveyor, tray conveyer.
10. soil difficulty volatile organic compounds restorative procedure according to claim 1, which is characterized in that the cement returns
Rotary kiln system high temperature incineration temperature is greater than 800 DEG C, burns the time greater than 20 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910659697.6A CN110375316A (en) | 2019-07-22 | 2019-07-22 | A kind of soil difficulty volatile organic compounds restorative procedure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910659697.6A CN110375316A (en) | 2019-07-22 | 2019-07-22 | A kind of soil difficulty volatile organic compounds restorative procedure |
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| Publication Number | Publication Date |
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| CN110375316A true CN110375316A (en) | 2019-10-25 |
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ID=68254611
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910659697.6A Pending CN110375316A (en) | 2019-07-22 | 2019-07-22 | A kind of soil difficulty volatile organic compounds restorative procedure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112872005A (en) * | 2021-01-12 | 2021-06-01 | 上海格林曼环境技术有限公司 | Improved filler for in-situ thermal desorption remediation heating well of contaminated soil and preparation method of improved filler |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3907946A1 (en) * | 1989-02-08 | 1990-08-09 | Westfaelische Berggewerkschaft | Process and apparatus for the thermal decontamination of soils which have been contaminated with substances convertible into volatile constituents |
| AU621534B3 (en) * | 1991-09-03 | 1992-01-28 | Hrubetz Environmental Services, Inc | In situ soil decontamination method and apparatus |
| EP0557623A2 (en) * | 1992-02-25 | 1993-09-01 | Hrubetz Environmental Services, Inc. | Mobile material decontamination apparatus |
| CN102580993A (en) * | 2012-02-21 | 2012-07-18 | 天津生态城环保有限公司 | In-situ remediation technology for organic polluted soil |
| CN103008337A (en) * | 2012-12-16 | 2013-04-03 | 华中农业大学 | System and method for repairing organic material polluted soil |
| CN204141595U (en) * | 2013-11-18 | 2015-02-04 | 北京麦凯特科技有限公司 | A kind of thermal analysis apparatus for repairing organic polluted soil |
| CN207394882U (en) * | 2017-11-06 | 2018-05-22 | 天津市中科环境修复有限公司 | A kind of soil remediation incinerator |
| CN207401905U (en) * | 2017-10-05 | 2018-05-25 | 福建和蓝环保科技集团有限公司 | A kind of chemical pollution soil restoring device |
-
2019
- 2019-07-22 CN CN201910659697.6A patent/CN110375316A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3907946A1 (en) * | 1989-02-08 | 1990-08-09 | Westfaelische Berggewerkschaft | Process and apparatus for the thermal decontamination of soils which have been contaminated with substances convertible into volatile constituents |
| AU621534B3 (en) * | 1991-09-03 | 1992-01-28 | Hrubetz Environmental Services, Inc | In situ soil decontamination method and apparatus |
| EP0557623A2 (en) * | 1992-02-25 | 1993-09-01 | Hrubetz Environmental Services, Inc. | Mobile material decontamination apparatus |
| CN102580993A (en) * | 2012-02-21 | 2012-07-18 | 天津生态城环保有限公司 | In-situ remediation technology for organic polluted soil |
| CN103008337A (en) * | 2012-12-16 | 2013-04-03 | 华中农业大学 | System and method for repairing organic material polluted soil |
| CN204141595U (en) * | 2013-11-18 | 2015-02-04 | 北京麦凯特科技有限公司 | A kind of thermal analysis apparatus for repairing organic polluted soil |
| CN207401905U (en) * | 2017-10-05 | 2018-05-25 | 福建和蓝环保科技集团有限公司 | A kind of chemical pollution soil restoring device |
| CN207394882U (en) * | 2017-11-06 | 2018-05-22 | 天津市中科环境修复有限公司 | A kind of soil remediation incinerator |
Non-Patent Citations (1)
| Title |
|---|
| 周玲莉: "水泥窑协同处置POPs 污染土壤对环境的影响研究", 《中国环境科学》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112872005A (en) * | 2021-01-12 | 2021-06-01 | 上海格林曼环境技术有限公司 | Improved filler for in-situ thermal desorption remediation heating well of contaminated soil and preparation method of improved filler |
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| PB01 | Publication | ||
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Application publication date: 20191025 |