CN103234209A - Device and method for processing chloro-containing organic industrial waste - Google Patents
Device and method for processing chloro-containing organic industrial waste Download PDFInfo
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- CN103234209A CN103234209A CN2013101508238A CN201310150823A CN103234209A CN 103234209 A CN103234209 A CN 103234209A CN 2013101508238 A CN2013101508238 A CN 2013101508238A CN 201310150823 A CN201310150823 A CN 201310150823A CN 103234209 A CN103234209 A CN 103234209A
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Abstract
The invention discloses a device and a method for processing chloro-containing organic industrial waste. The device comprises a thermal desorption furnace, chloro-containing organic industrial waste and an air inlet system are connected with a fused salt reacting furnace through the thermal desorption furnace, tail gas outputs of the fused salt reacting furnace are discharged after being absorbed by an alkali liquid and an organic solution sequentially, fused salt residues of the fused salt reacting furnace are connected with a chlorine element recovery system, and the thermal desorption furnace, the fused salt reacting furnace and a temperature control system are connected. The method comprises the steps of feeding the crushed chloro-containing organic industrial waste into the thermal desorption furnace through a charging system, heating the fused salt reacting furnace to fuse fused salts, heating the thermal desorption furnace to enable organic chloride in the chloro-containing organic industrial waste to be subjected to desorption and fed into the fused salt reacting furnace for reaction, discharging produced tail gases after subjecting tail gases to alkali liquid absorption and organic solution absorption sequentially, draining fused salt residues in the fused salt reacting furnace, and recovering through the chlorine element recovery system. The device and the method have the advantages of being quick in reaction, high in target pollutant elimination and removal rate and the like.
Description
Technical field
The present invention relates to environmental protection technical field, especially a kind of chloro organic industry treatment of wastes produced device and processing method of containing.
Background technology
That the toxicity chlorinatedorganic has is carcinogenic, teratogenesis, mutagenic " three cause " characteristic, and has high toxicity, biological accumulation, half volatile and refractory organics, and health and ecological environment are constituted serious harm.In order to control its harm, international community has concluded multinomial pact, and formulated corresponding control plan, as " control hazardous waste transboundary movement and disposal Basel Convention thereof ", " about the Convention of Stockholm of persistence organic pollutant (POPs) ", " persistence toxic chemical pollutant (PTS) register " etc.China contains toxicity chlorinatedorganic industrial waste and mainly comprises: left over by history contain organic chloro pesticide refuse such as DDT, BHC, pentachlorophenol, dicofol etc. and the industrial residue that contains toxicity chlorinatedorganic etc.At the organo-chlorine pesticide refuse with contain the organic industrial waste of chloro; wide high-efficiency detoxication and the treatment technology of research and development applicability; for solving because of chlorinatedorganic production, use, eliminating and problem of environmental pollution that process such as discharging causes; fulfil international convention; protection people's physical and mental health and ecological environment all have important practical significance and international influence.
Realization contains the harmless treatment of toxicity chlorinatedorganic industrial waste to be disposed, and key is the dechlorination detoxifcation of chlorinatedorganic.Research at present both at home and abroad is more, pollutant load and the good processing disposal technology of kind adaptability mainly are divided into incineration technology, materialization treatment technology such as mechanochemistry treatment technology, base catalysis reduction treatment technology, advanced oxidation treatment technology, fused salt oxidation technology etc., and the solidification and stabilization technology that further reduces chlorinatedorganic animal migration or toxicity.
Incineration technology has advantages such as treatment effeciency height, treating capacity be big, but the energy consumption height, and to the requirement height of equipment, output investment ratio is bigger, and has potential secondary pollution risk.The solidification and stabilization technology can reduce chlorinatedorganic animal migration or toxicity, but degradation efficiency is low, and it is not thorough to degrade.But the materialization treatment technology is more according to the difference system of selection of handling object and reaction condition, generally has characteristics such as disposal cost is lower, equipment is flexible.
The fused salt oxidation technology is a kind of heat treatment technics that U.S. Rockwell company took the lead in proposing in nineteen sixty-five, and this technology is reaction medium with the fused salt, utilizes it to organic strong oxidizing property and high thermoconductivity discarded object to be decomposed rapidly.Flameless combustion takes place in chlorinatedorganic in fused-salt medium and under the high temperature aerobic conditions, and oxidation Decomposition is carbon dioxide and water, and chlorine is caught by fused salt in course of reaction and generated innoxious salts substances, thereby reaches the purpose of dechlorination.The toxic and harmful that discharges in the course of reaction also can be absorbed by fused salt, and other inorganic matter and metal etc. then are retained in the fused salt, can effectively solve the pollution problem of chlorinatedorganic.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of chloro organic industry treatment of wastes produced device and processing method of containing, have be swift in response, target contaminant is destroyed and the clearance height, be difficult for producing advantages such as pollutant such as bioxin, equipment are removable, easy operating.
In order to achieve the above object, the technical scheme taked of the present invention is:
A kind of chloro organic industry treatment of wastes produced device that contains, comprise thermal desorption stove 1, contain chloro organic matter industrial waste by the input pipe connection of feed system 3 and thermal desorption stove 1, the input pipe of gas handling system 4 and thermal desorption stove 1 is communicated with, the flue gas efferent duct of thermal desorption stove 1 is connected with the input of fused salt reacting furnace 2, the tail gas output of fused salt reacting furnace 2 absorbs 6 back dischargings by alkali lye absorption 5, organic solution successively, the fused salt residue of fused salt reacting furnace 2 is connected with chlorine element recovery system 7, and thermal desorption stove 1, fused salt reacting furnace 2 are connected with temperature control system.
A kind of processing method that contains chloro organic industry treatment of wastes produced device may further comprise the steps:
1) will contain the fragmentation of chloro organic matter industrial waste and add thermal desorption stove 1 by feed system 3;
2) by temperature control system, heating fused salt reacting furnace 2 makes the fused salt fusing;
3) open gas handling system 4, heat hot desorption stove 1 makes organochlorine desorption in the chlorinatedorganic industrial waste enter fused salt reacting furnace 2 and reacts, and control thermal desorption gas is introduced speed 0.2～0.5L/min;
4) tail gas of fused salt reacting furnace 2 generations successively discharges through alkali lye absorption 5 and organic solution absorption 6 backs;
5) with the material emptying in the thermal desorption stove 1, add the next batch material after reaction finishes;
6) behind the material reaction more than two batches, with the fused salt residue emptying in the fused salt reacting furnace, carry out the chlorine element by chlorine element recovery system 7 and reclaim.
The described chloro organic industry refuse that contains is one or more contaminated soils, deposit or drift in hexachloro-benzene, DDT, drinox or Niran organo-chlorine pesticide and other chlorinated organics.
The temperature-sensing probe of described temperature control system is configured in thermal desorption stove and fused salt reacting furnace outer wall, inwall and the temperature-measuring port by reacting furnace stretches in the stove.
Described thermal desorption stove 1 and fused salt reacting furnace 2 adopt stainless steel cauldron and high temperature resistant quartz reaction still respectively, are provided with the helical stir oar in the still, and still is outer to be heated with ceramic heater.
The air inlet pipe of described thermal desorption stove 1 and fused salt reacting furnace 2 extends the bottom along inwall.
The gas of described gas handling system 4 comprises air or oxygen.
The alkali lye of described alkali lye absorption 5 is NaOH, potassium hydroxide, sodium carbonate or solution of potassium carbonate, and mass concentration is 5～10%.
The organic solution of described organic solution absorption 6 is carrene, dichloroethanes or n-hexane.
The present invention compared with prior art have be swift in response, target contaminant is destroyed and the clearance height, be difficult for producing advantages such as pollutant such as bioxin, equipment are removable, easy operating.
Description of drawings
Accompanying drawing is the structural representation of apparatus of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing device of the present invention is described in detail.
With reference to accompanying drawing, a kind of chloro organic industry treatment of wastes produced device that contains, comprise thermal desorption stove 1, contain chloro organic matter industrial waste by the input pipe connection of feed system 3 and thermal desorption stove 1, the input pipe of gas handling system 4 and thermal desorption stove 1 is communicated with, the flue gas efferent duct of thermal desorption stove 1 is connected with the input of fused salt reacting furnace 2, the tail gas output of fused salt reacting furnace 2 absorbs 6 back dischargings by alkali lye absorption 5, organic solution successively, the fused salt residue of fused salt reacting furnace 2 is connected with chlorine element recovery system 7, and thermal desorption stove 1, fused salt reacting furnace 2 are connected with temperature control system.
Be further described below in conjunction with the inventive method of embodiment, but content of the present invention is not limited only to content related among the embodiment.
Embodiment 1
A kind of processing method that contains chloro organic industry treatment of wastes produced device may further comprise the steps:
1) fragmentation of hexachloro-benzene contaminated soil is added thermal desorption stove 1 by feed system 3;
2) by temperature control system, heating fused salt reacting furnace 2 makes the fused salt fusing;
3) open gas handling system 4, heat hot desorption stove 1 makes organochlorine desorption in the hexachloro-benzene contaminated soil enter fused salt reacting furnace 2 and reacts, and control thermal desorption gas is introduced speed 0.2L/min;
4) tail gas of fused salt reacting furnace 2 generations successively is 5% sodium hydroxide solution and carrene absorption back discharging through mass concentration;
5) with the material emptying in the thermal desorption stove 1, add the next batch material after reaction finishes;
6) behind the material reaction more than two batches, with the fused salt residue emptying in the fused salt reacting furnace, carry out the chlorine element by chlorine element recovery system 7 and reclaim.
Embodiment 2
A kind of processing method that contains chloro organic industry treatment of wastes produced device may further comprise the steps:
1) gesarex polluted soil breaking is added thermal desorption stove 1 by feed system 3;
2) by temperature control system, heating fused salt reacting furnace 2 makes the fused salt fusing;
3) open gas handling system 4, heat hot desorption stove 1 makes organochlorine desorption in the gesarex polluted soil enter fused salt reacting furnace 2 and reacts, and control thermal desorption gas is introduced speed 0.5L/min;
4) tail gas of fused salt reacting furnace 2 generations successively is 10% sodium hydroxide solution and n-hexane absorption back discharging through mass concentration;
5) with the material emptying in the thermal desorption stove 1, add the next batch material after reaction finishes;
6) behind the material reaction more than two batches, with the fused salt residue emptying in the fused salt reacting furnace, carry out the chlorine element by chlorine element recovery system 7 and reclaim.
Embodiment 3
A kind of processing method that contains chloro organic industry treatment of wastes produced device may further comprise the steps:
1) fragmentation of drinox contaminated soil is added thermal desorption stove 1 by feed system 3;
2) by temperature control system, heating fused salt reacting furnace 2 makes the fused salt fusing;
3) open gas handling system 4, heat hot desorption stove 1 makes organochlorine desorption in the drinox contaminated soil enter fused salt reacting furnace 2 and reacts, and control thermal desorption gas is introduced speed 0.3L/min;
4) tail gas of fused salt reacting furnace 2 generations successively is 6% potassium hydroxide solution and carrene absorption back discharging through mass concentration;
5) with the material emptying in the thermal desorption stove 1, add the next batch material after reaction finishes;
6) behind the material reaction more than two batches, with the fused salt residue emptying in the fused salt reacting furnace, carry out the chlorine element by chlorine element recovery system 7 and reclaim.
Embodiment 4
A kind of processing method that contains chloro organic industry treatment of wastes produced device may further comprise the steps:
1) fragmentation of Niran contaminated soil is added thermal desorption stove 1 by feed system 3;
2) by temperature control system, heating fused salt reacting furnace 2 makes the fused salt fusing;
3) open gas handling system 4, heat hot desorption stove 1 makes organochlorine desorption in the Niran contaminated soil enter fused salt reacting furnace 2 and reacts, and control thermal desorption gas is introduced speed 0.4L/min;
4) tail gas that produces of fused salt reacting furnace 2 is to discharge behind 7% sodium carbonate liquor and the carrene through mass concentration successively;
5) with the material emptying in the thermal desorption stove 1, add the next batch material after reaction finishes;
6) behind the material reaction more than two batches, with the fused salt residue emptying in the fused salt reacting furnace, carry out the chlorine element by chlorine element recovery system 7 and reclaim.
Embodiment 5
A kind of processing method that contains chloro organic industry treatment of wastes produced device may further comprise the steps:
1) fragmentation of Niran contaminated soil is added thermal desorption stove 1 by feed system 3;
2) by temperature control system, heating fused salt reacting furnace 2 makes the fused salt fusing;
3) open gas handling system 4, heat hot desorption stove 1 makes organochlorine desorption in the Niran contaminated soil enter fused salt reacting furnace 2 and reacts, and control thermal desorption gas is introduced speed 0.5L/min;
4) tail gas of fused salt reacting furnace 2 generations successively is 8% solution of potassium carbonate and dichloroethanes absorption back discharging through mass concentration;
5) with the material emptying in the thermal desorption stove 1, add the next batch material after reaction finishes;
6) behind the material reaction more than two batches, with the fused salt residue emptying in the fused salt reacting furnace, carry out the chlorine element by chlorine element recovery system 7 and reclaim.
Claims (9)
1. one kind contains chloro organic industry treatment of wastes produced device, comprise thermal desorption stove (1), it is characterized in that: contain chloro organic matter industrial waste by the input pipe connection of feed system (3) and thermal desorption stove (1), the input pipe of gas handling system (4) and thermal desorption stove (1) is communicated with, the flue gas efferent duct of thermal desorption stove (1) is connected with the input of fused salt reacting furnace (2), the tail gas output of fused salt reacting furnace (2) absorbs (5) by alkali lye successively, organic solution absorbs the discharging of (6) back, the fused salt residue of fused salt reacting furnace (2) is connected with chlorine element recovery system (7), thermal desorption stove (1), fused salt reacting furnace (2) is connected with temperature control system.
2. a kind of processing method that contains chloro organic industry treatment of wastes produced device according to claim 1 is characterized in that, may further comprise the steps:
1) will contain the fragmentation of chloro organic matter industrial waste and add thermal desorption stove (1) by feed system (3);
2) by temperature control system, heating fused salt reacting furnace (2) makes the fused salt fusing;
3) open gas handling system (4), heat hot desorption stove (1) makes organochlorine desorption in the chlorinatedorganic industrial waste enter fused salt reacting furnace (2) and reacts, and control thermal desorption gas is introduced speed 0.2～0.5L/min;
4) tail gas of fused salt reacting furnace (2) generation discharges after successively absorbing (5) and organic solution absorption (6) through alkali lye;
5) with the material emptying in the thermal desorption stove (1), add the next batch material after reaction finishes;
6) behind the material reaction more than two batches, with the fused salt residue emptying in the fused salt reacting furnace, carry out the chlorine element by chlorine element recovery system (7) and reclaim.
3. a kind of processing method that contains chloro organic industry treatment of wastes produced device according to claim 2, it is characterized in that: the described chloro organic industry refuse that contains is one or more contaminated soils, deposit or drift in hexachloro-benzene, DDT, drinox or Niran organo-chlorine pesticide and other chlorinated organics.
4. a kind of processing method that contains chloro organic industry treatment of wastes produced device according to claim 2 is characterized in that: the temperature-sensing probe of described temperature control system is configured in thermal desorption stove and fused salt reacting furnace outer wall, inwall and the temperature-measuring port by reacting furnace stretches in the stove.
5. a kind of processing method that contains chloro organic industry treatment of wastes produced device according to claim 2, it is characterized in that: described thermal desorption stove (1) and fused salt reacting furnace (2) adopt stainless steel cauldron and high temperature resistant quartz reaction still respectively, be provided with the helical stir oar in the still, still is outer to be heated with ceramic heater.
6. a kind of processing method that contains chloro organic industry treatment of wastes produced device according to claim 2 is characterized in that: bottom the air inlet pipe of described thermal desorption stove (1) and fused salt reacting furnace (2) extends along inwall.
7. a kind of processing method that contains chloro organic industry treatment of wastes produced device according to claim 2, it is characterized in that: the gas of described gas handling system (4) comprises air or oxygen.
8. a kind of processing method that contains chloro organic industry treatment of wastes produced device according to claim 2, it is characterized in that: the alkali lye that described alkali lye absorbs (5) is NaOH, potassium hydroxide, sodium carbonate or solution of potassium carbonate, and mass concentration is 5～10%.
9. a kind of processing method that contains chloro organic industry treatment of wastes produced device according to claim 2 is characterized in that: the organic solution that described organic solution absorbs (6) is carrene, dichloroethanes or n-hexane.
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Cited By (8)
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| CN103691093A (en) * | 2013-12-13 | 2014-04-02 | 清华大学 | Method for disposing chloro-containing persistent organic pollutants through base catalysis |
| CN106186598A (en) * | 2016-07-11 | 2016-12-07 | 许祚员 | A kind of gesarex polluted sludge treating agent and preparation method thereof |
| WO2017174012A1 (en) * | 2016-04-07 | 2017-10-12 | 攀钢集团攀枝花钢铁研究院有限公司 | Molten-salt chlorinated-slag resource processing method |
| CN108404334A (en) * | 2018-04-11 | 2018-08-17 | 同济大学 | A method of detoxified halogenated debirs using hydroxide inorganic melt dechlorination |
| CN110142006A (en) * | 2019-05-14 | 2019-08-20 | 厦门中科易工化学科技有限公司 | A kind of device and application method of the high-temp chlorination dehydrogenation of alkanes gas |
| CN112058859A (en) * | 2020-08-19 | 2020-12-11 | 浙江巨化技术中心有限公司 | High-waste treatment device and method for chlorohydrocarbon |
| CN114101307A (en) * | 2021-11-10 | 2022-03-01 | 南京中船绿洲环保有限公司 | Fused salt circulating in-situ thermal desorption soil remediation system and method |
| CN114870590A (en) * | 2022-05-05 | 2022-08-09 | 苏州清咨威特环保科技有限公司 | Device for oxidation treatment of halogenated organic waste gas |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103691093A (en) * | 2013-12-13 | 2014-04-02 | 清华大学 | Method for disposing chloro-containing persistent organic pollutants through base catalysis |
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| CN106186598A (en) * | 2016-07-11 | 2016-12-07 | 许祚员 | A kind of gesarex polluted sludge treating agent and preparation method thereof |
| CN108404334A (en) * | 2018-04-11 | 2018-08-17 | 同济大学 | A method of detoxified halogenated debirs using hydroxide inorganic melt dechlorination |
| CN108404334B (en) * | 2018-04-11 | 2020-11-27 | 同济大学 | Method for dechlorinating and detoxifying halogenated organic waste by using hydroxide inorganic melt |
| CN110142006A (en) * | 2019-05-14 | 2019-08-20 | 厦门中科易工化学科技有限公司 | A kind of device and application method of the high-temp chlorination dehydrogenation of alkanes gas |
| CN110142006B (en) * | 2019-05-14 | 2021-10-15 | 厦门中科易工化学科技有限公司 | Device for high-temperature chlorination and dehydrogenation of alkane gas and use method |
| CN112058859A (en) * | 2020-08-19 | 2020-12-11 | 浙江巨化技术中心有限公司 | High-waste treatment device and method for chlorohydrocarbon |
| CN114101307A (en) * | 2021-11-10 | 2022-03-01 | 南京中船绿洲环保有限公司 | Fused salt circulating in-situ thermal desorption soil remediation system and method |
| CN114870590A (en) * | 2022-05-05 | 2022-08-09 | 苏州清咨威特环保科技有限公司 | Device for oxidation treatment of halogenated organic waste gas |
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