CN105080952A - Method used for processing waste gas in polluted soil - Google Patents
Method used for processing waste gas in polluted soil Download PDFInfo
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- CN105080952A CN105080952A CN201510530469.0A CN201510530469A CN105080952A CN 105080952 A CN105080952 A CN 105080952A CN 201510530469 A CN201510530469 A CN 201510530469A CN 105080952 A CN105080952 A CN 105080952A
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- waste gas
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- contaminated soil
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Abstract
The invention discloses a method used for processing waste gas in polluted soil. The method includes the steps that the polluted soil is sent into an operation workshop to be turned and aired; ventilation is conducted on the workshop so that the waste gas which is generated during turning and airing and carries dust can be brought out; dust removal is conducted on the waste gas; the gas where dust removal is conducted is discharged after being adsorbed and purified by activated carbon; the activated carbon is heated so that pollutants adsorbed and concentrated by the activated carbon can be steamed out; and the pollutants are introduced into a heating chamber to be heated and are then introduced into a catalysis combustion chamber to be combusted. The energy consumption is greatly lowered, and meanwhile secondary pollution can not be caused. Honeycomb ceramic is arranged in the catalysis combustion chamber for heat storage combustion, combusted gas exchanges heat with the pollutants which are steamed out, and therefore the waste gas processing cost is further reduced.
Description
Technical field
the present invention relates to a kind of method for the treatment of waste gas in contaminated soil.
Background technology
existingly be generally absorption process and direct combustion method for the treatment of the method for waste gas in contaminated soil.
adopt absorption process, cause the absorption efficiency of absorbing liquid low because pollutant levels are low, the subsequent treatment processing of absorbing liquid comparatively bothers, and easily produces secondary pollution problem simultaneously.
adopt direct combustion method, need more than gas-heated lower for pollutant levels to burning-point, its energy consumption is huge, and processing cost is higher.
Summary of the invention
the object of this invention is to provide a kind of energy consumption lower and do not produce secondary pollution the method for the treatment of waste gas in contaminated soil.
for achieving the above object, the technical solution used in the present invention is:
for the treatment of a method for waste gas in contaminated soil, it is characterized in that: said method comprising the steps of:
(1) ted: contaminated soil is sent in operation workshop and ted, take a breath to take out of the waste gas with dust tedding middle generation to workshop;
(2) dedusting: the waste gas with dust tedding middle generation is passed in dedusting mechanism and carries out dedusting;
(3) adsorb: the waste gas after dedusting is passed into and is equipped with in the adsorption tanks of active carbon, described charcoal absorption pollutant wherein, gas up to standard after purification is discharged from described adsorption tanks;
(4) desorption: adsorption tanks described in high-temperature heating, steams described pollutant from described active carbon;
(5) heating flame: the described pollutant after steaming is passed in heating clamber and is heated to burning-point, then pass in catalytic combustor and carry out catalytic combustion, then discharge.
preferably, arrange the ceramic honey comb carrying out catalytic combustion for passing into described pollutant in described catalytic combustor, the gas produced after burning is discharged from described ceramic honey comb.
more preferably, described ceramic honey comb has multiple, and what multiple described ceramic honey comb was arranged in order is located in described catalytic combustor.
preferably, the described pollutant steamed in the gas produced after burning in step (5) and step (4) is carried out heat exchange, the described pollutant after heat exchange is passed in described heating clamber.
more preferably, set temperature sensor in described heating clamber, described temperature sensor, for after detecting that the temperature of the described pollutant passed into reaches burning-point, cuts out the heating arrangements in described heating clamber.
preferably, described pollutant is organic matter and/or inorganic matter.
due to the utilization of technique scheme, the present invention compared with prior art has following advantages: a kind of method for the treatment of waste gas in contaminated soil of the present invention, by the gas with waste gas by discharging after charcoal absorption purification, again active carbon is heated, steam wherein by the pollutant of Adsorption Concentration, pass in catalytic combustor after this pollutant is heated and burn, decrease energy consumption and can not secondary pollution be produced; Carry out heat-accumulation combustion by arranging ceramic honey comb in catalytic combustor, and the gas after burning and the pollutant steamed are carried out heat exchange, reduce further the cost of process waste gas.
Accompanying drawing explanation
accompanying drawing 1 is the process chart of the inventive method.
wherein: 1, dedusting mechanism; 2, active carbon; 3, adsorption tanks; 4, heating clamber; 5, catalytic combustor; 6, ceramic honey comb; 7, temperature sensor; 8, heating arrangements.
Detailed description of the invention
below in conjunction with accompanying drawing, technical scheme of the present invention is further elaborated.
shown in Figure 1, a kind of above-mentioned method for the treatment of waste gas in contaminated soil, is characterized in that: said method comprising the steps of:
(1) ted: contaminated soil is sent in operation workshop and ted, the floor space in general workshop is larger, need per hourly to carry out a ventilation operation to workshop, to take the waste gas with dust tedding middle generation out of, and the soil after up to standard is transported this operation workshop;
(2) dedusting: the waste gas with dust tedding middle generation is passed in dedusting mechanism 1 and carries out dedusting, in the present embodiment method, dedusting mechanism is sack cleaner, by filtering material wherein, dust separation is trapped, can purify the dusty gas that particle diameter is greater than 0.5 μm, this sack cleaner efficiency of dust collection is high, stable and reliable for performance, easy and simple to handle;
(3) adsorb: the waste gas after dedusting is passed into and is equipped with in the adsorption tanks 3 of active carbon 2, by active carbon 2 Adsorption Concentration pollutant wherein until active carbon 2 reaches capacity, by purification after gas up to standard from adsorption tanks 3 discharged to the external world, this pollutant is organic matter and/or inorganic matter;
(4) desorption: these adsorption tanks 3 of high-temperature heating, steam pollutant from this active carbon 2;
(5) heating flame: the pollutant after steaming is passed in heating clamber 4 and is heated to burning-point, pass into again in catalytic combustor 5 and carry out catalytic combustion and obtain substantially free of contamination combustion product, the ceramic honey comb 6 carrying out catalytic combustion for passing into pollutant is provided with in this catalytic combustor 5, the gas produced after burning is discharged from this ceramic honey comb 6, in the present embodiment method, this ceramic honey comb 6 has three, what three ceramic honey combs 6 were arranged in order is located in this catalytic combustor 5, by arranging this multistage ceramic honey comb 6, achieve the heat storage type combustion of pollutant, significantly decrease energy consumption,
(6) heat exchange: the pollutant steamed in the gas produced after burning in step (5) and step (4) is carried out heat exchange, combustion product after heat exchange is discharged, and continue the pollutant after heat exchange to pass into heating in heating clamber 4, in the present embodiment method, temperature sensor 7 is provided with in this heating clamber 4, this temperature sensor 7, for after detecting that the temperature of the pollutant passed into reaches burning-point, cuts out heating arrangements 8 wherein, further to reduce energy consumption.
above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and be implemented; can not limit the scope of the invention with this; all equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (6)
1. for the treatment of a method for waste gas in contaminated soil, it is characterized in that: said method comprising the steps of:
(1) ted: contaminated soil is sent in operation workshop and ted, take a breath to take out of the waste gas with dust tedding middle generation to workshop;
(2) dedusting: the waste gas with dust tedding middle generation is passed in dedusting mechanism and carries out dedusting;
(3) adsorb: the waste gas after dedusting is passed into and is equipped with in the adsorption tanks of active carbon, described charcoal absorption pollutant wherein, gas up to standard after purification is discharged from described adsorption tanks;
(4) desorption: adsorption tanks described in high-temperature heating, steams described pollutant from described active carbon;
(5) heating flame: the described pollutant after steaming is passed in heating clamber and is heated to burning-point, then pass in catalytic combustor and carry out catalytic combustion, then discharge.
2. a kind of method for the treatment of waste gas in contaminated soil according to claim 1, it is characterized in that: in described catalytic combustor, arrange the ceramic honey comb carrying out catalytic combustion for passing into described pollutant, the gas produced after burning is discharged from described ceramic honey comb.
3. a kind of method for the treatment of waste gas in contaminated soil according to claim 2, is characterized in that: described ceramic honey comb has multiple, and what multiple described ceramic honey comb was arranged in order is located in described catalytic combustor.
4. a kind of method for the treatment of waste gas in contaminated soil according to claim 1, it is characterized in that: the described pollutant steamed in the gas produced after burning in step (5) and step (4) is carried out heat exchange, the described pollutant after heat exchange is passed in described heating clamber.
5. a kind of method for the treatment of waste gas in contaminated soil according to claim 4, it is characterized in that: set temperature sensor in described heating clamber, described temperature sensor, for after detecting that the temperature of the described pollutant passed into reaches burning-point, close the heating arrangements in described heating clamber.
6. a kind of method for the treatment of waste gas in contaminated soil according to claim 1, is characterized in that: described pollutant is organic matter and/or inorganic matter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510530469.0A CN105080952A (en) | 2015-08-26 | 2015-08-26 | Method used for processing waste gas in polluted soil |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510530469.0A CN105080952A (en) | 2015-08-26 | 2015-08-26 | Method used for processing waste gas in polluted soil |
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| CN105080952A true CN105080952A (en) | 2015-11-25 |
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| CN201510530469.0A Pending CN105080952A (en) | 2015-08-26 | 2015-08-26 | Method used for processing waste gas in polluted soil |
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Citations (5)
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|---|---|---|---|---|
| US4974528A (en) * | 1989-12-08 | 1990-12-04 | Ryan-Murphy, Inc. | Method and apparatus for the treatment of contaminated soil |
| CN1611291A (en) * | 2003-10-31 | 2005-05-04 | 中国石油化工股份有限公司 | Method for purifying organic waste gas with high concentration |
| CN101073740A (en) * | 2006-05-19 | 2007-11-21 | 中国石油化工股份有限公司 | Method for purifying organic waste gas |
| CN103394504A (en) * | 2013-07-09 | 2013-11-20 | 北京生态岛科技有限责任公司 | Treatment system and treatment method for contaminated soil |
| CN103934262A (en) * | 2014-05-14 | 2014-07-23 | 中国环境科学研究院 | Method for reducing volatile organic contaminant residue in soil in mechanical ventilation repair process |
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2015
- 2015-08-26 CN CN201510530469.0A patent/CN105080952A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4974528A (en) * | 1989-12-08 | 1990-12-04 | Ryan-Murphy, Inc. | Method and apparatus for the treatment of contaminated soil |
| CN1611291A (en) * | 2003-10-31 | 2005-05-04 | 中国石油化工股份有限公司 | Method for purifying organic waste gas with high concentration |
| CN101073740A (en) * | 2006-05-19 | 2007-11-21 | 中国石油化工股份有限公司 | Method for purifying organic waste gas |
| CN103394504A (en) * | 2013-07-09 | 2013-11-20 | 北京生态岛科技有限责任公司 | Treatment system and treatment method for contaminated soil |
| CN103934262A (en) * | 2014-05-14 | 2014-07-23 | 中国环境科学研究院 | Method for reducing volatile organic contaminant residue in soil in mechanical ventilation repair process |
Non-Patent Citations (2)
| Title |
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| 曾建文 等: "《工业化进程与资源、环境、节能》", 31 January 2011, 机械工业出版社 * |
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Application publication date: 20151125 |
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