CN105948150A - Process and system for recycling high-chloride high-concentration non-degradable organic wastewater - Google Patents
Process and system for recycling high-chloride high-concentration non-degradable organic wastewater Download PDFInfo
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- CN105948150A CN105948150A CN201610268112.4A CN201610268112A CN105948150A CN 105948150 A CN105948150 A CN 105948150A CN 201610268112 A CN201610268112 A CN 201610268112A CN 105948150 A CN105948150 A CN 105948150A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
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- C—CHEMISTRY; METALLURGY
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Abstract
The invention provides a process and system for recycling high-chloride high-organic-matter wastewater; according to the process, in a set of system, an inorganic salt suitable for a snow melting agent is produced through a high-temperature cyclic oxidation process; organic matter self heat quantity is depended, an auxiliary heat source is externally added, and an organic matter is decomposed with low cost; at the same time, a high-temperature secondary combustion room is designed, and dioxin is decomposed; wastewater is subjected to atomized quenching concentration by using high temperature flue gas, and hazardous waste recycling treatment is realized with low cost; the process is especially suitable for organic wastewater containing sodium chloride, calcium chloride, magnesium chloride and other high-chloride salts, but also can be used for recycling disposal of other high-salt high-concentration organic wastewater, and has great economic and social benefits.
Description
Technical field
The present invention relates to resource and environment filed, particularly a kind of perchloride high concentration hard-degraded organic waste water money
Source metallization processes and system.
Background technology
China's chlor-alkali industry annual producing chlorine yield more than about 2,500,000 tons, only chlor-alkali by-product technical hydrochloric acid 1000
More than ten thousand tons, wherein chlorine uses industry and hydrochloric acid to use industry significant proportion to be organic chemical industry's industry, and by-product is big
Amount chloride height salt organic waste water waste water more than 300,000,000 tons；Especially medicine intermediate, pesticide intermediate, stone
Changing the high-salt wastewater of industry by-product, concentration is high, colourity is deep, toxicity is big, and pollutant component is complicated, belongs to typical case
High salt high-concentration hardly-degradable waste water.These waste water enter rivers water body, the most seriously destroy water ecology,
And the living environment of the mankind is constituted threat greatly.Mainly use at present both at home and abroad absorption, aoxidize, extract
Take, film process, the technique such as condensing crystallizing, but it is complicated all to there is process, and investment is big, and cost is high, Er Qiegong
Skill narrow application range, concentrate out is still containing large amount of organic abraum salt, solves problem the most at all, also adopt
Processing with incinerator, investment and operating cost are more difficult to accept into enterprise.
The present invention provides a kind of technique to perchloride height organic wastewater resource and system, specifically includes that
In set of system, by high-temperature oxidation process, produce the inorganic salt being applicable to Snow Agent, rely on Organic substance certainly
Fever of the body amount, additional auxiliary thermal source, low cost decomposing organic matter；Devise high temperature secondary combustor simultaneously, decompose
Two English；Utilize high-temperature flue gas atomizing chilling to concentrate waste water, be realized with a low cost recycling treatment useless to danger, special
It is not applicable to sodium chloride-containing, calcium chloride, the organic wastewater of magnesium chloride contour chloride salinity, simultaneously can be used for
The disposal of resources of other high salt organic wastewater with high concentration, economic and social benefit is huge.
Summary of the invention
The present invention seeks to for above-mentioned existing problems, it is provided that a kind of perchloride high concentration hard-degraded organic waste water
Process for reclaiming and system, this technique is avoided the various complicated biodegrading process of hardly degraded organic substance, is made full use of
The heat of Organic substance self, assists external source heat, produces the chloride that can be used for Snow Agent, is realized with a low cost
Waste water component resource maximally utilizes, it is achieved that zero release of pollutant.Devise the system realizing this technique simultaneously；
The present invention is that various high salt, high-concentration hardly-degradable organic wastewater process and provide simplicity, applied widely low
Cost process and system, Social benefit and economic benefit is huge.
Technical scheme:
A kind of technique of perchloride high concentration hard-degraded organic waste water recycling system, step is as follows:
1) waste water atomizing chilling enrichment process
Step 2) in secondary combustion chamber out high-temperature flue gas from bottom enter atomizing chilling concentration tower, tower top spray
Entering perchloride height organic wastewater, flue gas is below instantaneous temperature reduction to 200 DEG C, to eliminate two English generations
Condition, the moisture in waste water is drastically evaporated simultaneously, and concentration improves rapidly, and atomizing chilling tower tail gas is at tail gas
After reason tower, less than 90 DEG C discharges, tail gas absorption liquid enters step 1), condensing crystallizing thing, it is delivered to step 2)
High-boiling oxidation operation, at 400-800 DEG C of decomposing organic matter；
2) high-boiling cyclic oxidation operation
From step 1) high Organic substance concentrate crystal, enter in high-boiling oxidation furnace, at 400-800 DEG C
Lower decomposing organic matter, relies on system ciculation fluidized, it is ensured that Organic substance realizes the resolving time of 20-200 second, point
Solve the salinity after Organic substance, after air-cooled heat exchange, enter Snow Agent workshop；Heat exchange hot blast fires for secondary
Burning room is combustion-supporting, and second-time burning room temperature keeps 1100-1200 DEG C, after thoroughly decomposing two English, enters step 1).
Step 1) described perchloride height organic wastewater, refer to the chloride containing large amount of organic, potassium chloride
Magnesium chloride, calcium chloride etc. multiple muriatic in one or more mixture；Described atomizing chilling concentrates
Tower, refers to that a kind of cooled flue gas rapidly rapid evaporation simultaneously of particular design concentrates the device of waste water, was both avoided that
Homadamon border is easily generated two English, the most efficiently make use of fume waste heat, and chilling tower structure can be with void tower or filler
Tower, subject range width.
Step 2) described high-boiling is ciculation fluidized, refers to halfway for decomposing organic matter material to be returned
The loop structure of oxidation furnace.
When using said apparatus to carry out this technique, point three material flows, first: high-salt wastewater is through suitable
Sequence flow process, pyrolytic Organic substance, become Snow Agent raw material；Second is, high-temperature flue gas, with material warp
Cross reverse flow process heat exchange, tail gas qualified discharge；3rd is, Organic substance high-temp combustion heat and cooling hot blast
It is completely used for system combustion-supporting, it is achieved heat energy recycling.
A kind of system realizing described perchloride high concentration hard-degraded organic waste water process for reclaiming, including tail gas
Treating column 1, atomizing chilling concentration tower 2, high-boiling oxidation furnace 3, high-temperature burner 4, cyclone separator 5,
Secondary combustion chamber 6 and Air cooler 7, vent gas treatment tower 1 is provided with perchloride waterwater entrance, vent gas treatment tower
The outlet of 1 is connected with the entrance of atomizing chilling concentration tower 2；The outlet of atomizing chilling concentration tower 2 is boiled with high temperature
The import rising cyclic oxidation stove 3 connects；The solid matter outlet of high-boiling cyclic oxidation stove 3 is with air-cooled
The material inlet of machine 7 connects, and gas outlet is connected with the entrance of cyclone separator 5；Cyclone separator 5
Gas is connected from the entrance of upper outlet with secondary combustion chamber 6, and solid is connected to high-boiling from lower outlet and follows
Epoxidation stove 3 material inlet；The outlet of secondary combustion chamber 6 and the gas feed of atomizing chilling tower 2, spray
The gas outlet of mist chilling concentration tower 2 is connected with vent gas treatment tower gas feed, the treated row up to standard of tail gas
Put；The material outlet of Air cooler 7 connects Snow Agent and produces.
The working mechanism of the present invention:
Step 1) atomizing chilling concentration systems, high-temperature flue gas is quickly cooled to less than 200 DEG C, is possible to prevent two
English generates, and uses waste water chilling high-temperature gas, concentrates waste water simultaneously, be that common chilling tower is answered by this technique
Widen with field, it is achieved that heat energy Appropriate application.
Step 2) high-boiling oxidation
In view of some inorganic salt pyrolytic, and Organic substance decomposition temperature is low, and to be accomplished by the time long, aoxidizes body of heater
The design fine particle that goes out of tail gas separation returns to circulating-heating in body of heater, optimizes the ciculation fluidized time and is
The 20-200 second.Described go Snow Agent to produce, refer to that domestic Snow Agent standard specifies, sodium chloride, potassium chloride,
Calcium chloride, magnesium chloride etc. can produce Snow Agent, according to salt component ratio, need allotment ratio to meet GB and want
Ask.
The present invention optimizes 400 DEG C-800 DEG C ciculation fluidized guarantee times, is the design of this process innovation, can be not
Under the conditions of increasing power consumption, it is achieved the prolongation of high-temperature time, increase the contact area of spraying oxidation simultaneously, can
To improve oxidation rate.
The invention have the advantage that the method technological process brief, rationally, small investment, low operating cost, resource
Change；Technological principle is rigorous, salinity, Organic substance, waste gas, used heat all recycling treatment in waste water；Design simultaneously
System flow, it is easy to industrializing implementation；The present invention adapts to perchloride height organic wastewater resource especially,
Be simultaneously suitable for various high salt height organic wastewater dispose, there is promotional value, have significant techno-economic effect and
Huge social benefit.
Accompanying drawing explanation
Fig. 1 is the system schematic realizing described perchloride high concentration hard-degraded organic waste water process for reclaiming.
In figure: 1. vent gas treatment tower 2. atomizing chilling concentration tower 3. high-boiling oxidation furnace
4. high-temperature burner 5. cyclone separator 6. secondary combustion chamber 7. Air cooler.
Detailed description of the invention
Following example are not for purposes of illustration only, be construed as limiting the invention.
The technique of perchloride high concentration hard-degraded organic waste water recycling system described in following example, all
Following system is implemented.
A kind of perchloride high concentration hard-degraded organic waste water recycling system, including vent gas treatment tower 1, spraying
Chilling concentration tower 2, high-boiling oxidation furnace 3, high-temperature burner 4, cyclone separator 5, secondary combustion chamber 6
With Air cooler 7, vent gas treatment tower 1 is provided with perchloride waterwater entrance, the outlet of vent gas treatment tower 1 and spray
The entrance of mist chilling concentration tower 2 connects；The outlet of atomizing chilling concentration tower 2 and high-boiling cyclic oxidation
The import of stove 3 connects；The solid matter outlet of high-boiling cyclic oxidation stove 3 and the material of Air cooler 7
Entrance connects, and gas outlet is connected with the entrance of cyclone separator 5, and the outlet of high-temperature burner 4 connects
The entrance of high-boiling cyclic oxidation stove 3；Cyclone separator 5 gas is from upper outlet and secondary combustion chamber 6
Entrance connect, solid is connected to 3 times material inlets of high-boiling cyclic oxidation stove from lower outlet；Secondary
The gas feed of the outlet of combustor 6 and atomizing chilling tower 2, the gas outlet of atomizing chilling concentration tower 2 with
Vent gas treatment tower gas feed connects, the treated qualified discharge of tail gas；The material outlet of Air cooler 7 connects
Packaging.
Embodiment 1:
A kind of technique of perchloride high concentration hard-degraded organic waste water recycling system, step is as follows:
1) waste water atomizing chilling enrichment process
Step 2) in secondary combustion chamber out 1100 DEG C of high-temperature flue gas enter atomizing chilling tower, tower from bottom
Top spraying high salt height organic wastewater, flue gas, in instantaneous temperature reduction to 180 DEG C, eliminates two English Production conditions；
Moisture in waste water is drastically evaporated simultaneously, improves rapidly concentration；Atomizing chilling concentration tower tail gas is through vent gas treatment
After, 90 DEG C of discharges；Tail gas absorption liquid enters step 1) waste water storage tank；Condensing crystallizing thing, is delivered to step 2)
High-boiling oxidation operation.
2) high-boiling cyclic oxidation system
From step 1) come high Organic substance concentration crystal, enters in high-boiling cyclic oxidation stove, at 500 DEG C
Decomposing organic matter, ciculation fluidized 150 seconds, organic matter decomposition rate reached 99%, the salinity after decomposing organic matter,
After air-cooled heat exchange, enter Snow Agent and produce；Hot blast is combustion-supporting for secondary combustion chamber, and second-time burning room temperature is protected
Hold 1100 DEG C, after thoroughly decomposing two English, enter step 1).
Resource is all achieved through above step chloride waste water all the components.
Embodiment 2:
A kind of technique of perchloride high concentration hard-degraded organic waste water recycling system, step is as follows:
1) waste water atomizing chilling enrichment process
Step 2) in secondary combustion chamber out 1200 DEG C of high-temperature flue gas from bottom spray chilling tower, chilling tower top
Spraying high salt height organic wastewater, flue gas, in instantaneous temperature reduction to 180 DEG C, eliminates two English Production conditions；With
Time waste water in moisture drastically evaporated, improve rapidly concentration；Atomizing chilling tower tail gas after vent gas treatment tower,
80 DEG C of discharges；Tail gas absorption liquid enters step 1)；Condensing crystallizing thing, is delivered to step 2) high-boiling oxidation
Furnace system, removes decomposing organic matter,.
2) high-boiling cyclic oxidation operation
From step 1) come high Organic substance concentration crystal, enters in high-boiling oxidation furnace, 800 DEG C of decomposition
Organic substance, 30 seconds ciculation fluidized time, organic matter decomposition rate reaches 99.8%, the salinity after decomposing organic matter,
After air-cooled heat exchange, enter Snow Agent workshop；Hot blast is combustion-supporting for secondary combustion chamber, second-time burning room temperature
Degree keeps 1200 DEG C, after thoroughly decomposing two English, enters step 1).
Resource is all achieved through above step chloride organic wastewater all the components.
Claims (4)
1. the technique of a perchloride high concentration hard-degraded organic waste water recycling system, it is characterised in that step
Rapid as follows:
1) waste water atomizing chilling enrichment process
Step 2) in secondary combustion chamber out high-temperature flue gas from bottom enter atomizing chilling concentration tower, tower top spray
Entering perchloride height organic wastewater, flue gas is below instantaneous temperature reduction to 200 DEG C, to eliminate two English generations
Condition, the moisture in waste water is drastically evaporated simultaneously, and concentration improves rapidly, and atomizing chilling tower tail gas is at tail gas
After reason tower, less than 90 DEG C discharges, tail gas absorption liquid enters step 1), condensing crystallizing thing, it is delivered to step 2)
High-boiling oxidation operation, at 400-800 DEG C of decomposing organic matter；
2) high-boiling cyclic oxidation operation
From step 1) high Organic substance concentrate crystal, enter in high-boiling oxidation furnace, at 400-800 DEG C
Lower decomposing organic matter, relies on system ciculation fluidized, it is ensured that Organic substance realizes the resolving time of 20-200 second, point
Solve the salinity after Organic substance, after air-cooled heat exchange, enter Snow Agent workshop；Heat exchange hot blast fires for secondary
Burning room is combustion-supporting, and second-time burning room temperature keeps 1100-1200 DEG C, after thoroughly decomposing two English, enters step 1).
The work of perchloride high concentration hard-degraded organic waste water recycling system the most according to claim 1
Skill, it is characterised in that: described step 1) in perchloride height organic wastewater, refer to containing large amount of organic
Chloride, potassium chloride magnesium chloride, calcium chloride etc. multiple muriatic in one or more mixture；Institute
State atomizing chilling concentration tower, refer to that a kind of cooled flue gas rapidly rapid evaporation simultaneously of particular design concentrates waste water
Device, had both been avoided that homadamon border was easily generated two English, the most efficiently make use of fume waste heat, chilling tower structure can
With void tower or packed tower, subject range width.
The work of perchloride high concentration hard-degraded organic waste water recycling system the most according to claim 1
Skill, it is characterised in that: described step 2) in high-boiling ciculation fluidized, referring to can decomposing organic matter not
Material returns the loop structure of oxidation furnace thoroughly.
4. one kind realize perchloride high concentration hard-degraded organic waste water process for reclaiming described in claim 1 be
System, it is characterised in that: include vent gas treatment tower 1, atomizing chilling concentration tower 2, high-boiling oxidation furnace 3,
High-temperature burner 4, cyclone separator 5, secondary combustion chamber 6 and Air cooler 7.Vent gas treatment tower 1 is provided with height
Chloride waterwater entrance, the outlet of vent gas treatment tower 1 is connected with the entrance of atomizing chilling concentration tower 2；Spraying
The outlet of chilling concentration tower 2 is connected with the import of high-boiling cyclic oxidation stove 3；High-boiling circulation oxygen
The solid matter outlet changing stove 3 is connected with the material inlet of Air cooler 7, gas outlet and cyclone separator 5
Entrance connect, high-temperature burner 4 outlet connect high-boiling cyclic oxidation stove 3 entrance；Whirlwind
Separator 5 gas is connected from the entrance of upper outlet with secondary combustion chamber 6, and solid is connected to height from lower outlet
Temperature boiling 3 times material inlets of cyclic oxidation stove；The outlet of secondary combustion chamber 6 and the gas of atomizing chilling tower 2
Body import, the gas outlet of atomizing chilling concentration tower 2 is connected with vent gas treatment tower gas feed, and tail gas is through place
Reason qualified discharge；The material outlet of Air cooler 7 connects packaging.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610268112.4A CN105948150A (en) | 2016-04-26 | 2016-04-26 | Process and system for recycling high-chloride high-concentration non-degradable organic wastewater |
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| CN201610268112.4A CN105948150A (en) | 2016-04-26 | 2016-04-26 | Process and system for recycling high-chloride high-concentration non-degradable organic wastewater |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106669386A (en) * | 2016-12-14 | 2017-05-17 | 江苏瑞升华能源科技有限公司 | Spray oxidization granulation technique and device |
| CN106885252A (en) * | 2017-03-24 | 2017-06-23 | 东南大学 | A kind of saliferous high concentrated organic wastewater processing unit and method |
| CN107162300A (en) * | 2017-05-09 | 2017-09-15 | 北京国电富通科技发展有限责任公司 | The method that chlorination calcium is separated and recovered in the high organic wastewater of high salt |
| CN107990320A (en) * | 2017-12-29 | 2018-05-04 | 长沙中硅水泥技术开发有限公司 | Cement kiln collaboration handles organic abraum salt, the method and system of high salt organic waste water |
| CN108928984A (en) * | 2018-08-08 | 2018-12-04 | 鞍钢股份有限公司 | A kind of method of the reverse osmosis concentrated salt water zero discharge of iron and steel enterprise |
| CN110918597A (en) * | 2019-11-08 | 2020-03-27 | 新疆浦盛环保科技有限公司 | Fly ash treatment system |
| CN114230081A (en) * | 2021-12-24 | 2022-03-25 | 华能辛店发电有限公司 | Method for preparing snow-melting agent and deicing fan blades by using desulfurization wastewater |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106669386A (en) * | 2016-12-14 | 2017-05-17 | 江苏瑞升华能源科技有限公司 | Spray oxidization granulation technique and device |
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| CN106885252A (en) * | 2017-03-24 | 2017-06-23 | 东南大学 | A kind of saliferous high concentrated organic wastewater processing unit and method |
| CN107162300A (en) * | 2017-05-09 | 2017-09-15 | 北京国电富通科技发展有限责任公司 | The method that chlorination calcium is separated and recovered in the high organic wastewater of high salt |
| CN107990320A (en) * | 2017-12-29 | 2018-05-04 | 长沙中硅水泥技术开发有限公司 | Cement kiln collaboration handles organic abraum salt, the method and system of high salt organic waste water |
| CN107990320B (en) * | 2017-12-29 | 2023-11-17 | 长沙中硅环保科技有限公司 | Method and system for cooperatively treating organic waste salt and high-salt organic wastewater by cement kiln |
| CN108928984A (en) * | 2018-08-08 | 2018-12-04 | 鞍钢股份有限公司 | A kind of method of the reverse osmosis concentrated salt water zero discharge of iron and steel enterprise |
| CN108928984B (en) * | 2018-08-08 | 2021-07-20 | 鞍钢股份有限公司 | Method for realizing zero emission of reverse osmosis strong brine in iron and steel enterprises |
| CN110918597A (en) * | 2019-11-08 | 2020-03-27 | 新疆浦盛环保科技有限公司 | Fly ash treatment system |
| CN110918597B (en) * | 2019-11-08 | 2021-12-07 | 新疆浦盛环保科技有限公司 | Fly ash treatment system |
| CN114230081A (en) * | 2021-12-24 | 2022-03-25 | 华能辛店发电有限公司 | Method for preparing snow-melting agent and deicing fan blades by using desulfurization wastewater |
| CN114230081B (en) * | 2021-12-24 | 2024-04-16 | 华能辛店发电有限公司 | Method for preparing snow-melting agent and for deicing fan blades by using desulfurization wastewater |
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Application publication date: 20160921 |