CN108479680A - A kind of high organic wastewater crystal salt harmless treatment device with high salt - Google Patents
A kind of high organic wastewater crystal salt harmless treatment device with high salt Download PDFInfo
- Publication number
- CN108479680A CN108479680A CN201810658949.9A CN201810658949A CN108479680A CN 108479680 A CN108479680 A CN 108479680A CN 201810658949 A CN201810658949 A CN 201810658949A CN 108479680 A CN108479680 A CN 108479680A
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- tank body
- salt
- organic wastewater
- harmless treatment
- treatment device
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- 150000003839 salts Chemical class 0.000 title claims abstract description 77
- 239000013078 crystal Substances 0.000 title claims abstract description 41
- 239000002351 wastewater Substances 0.000 title claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 23
- 230000005674 electromagnetic induction Effects 0.000 claims description 22
- 238000003756 stirring Methods 0.000 claims description 13
- 238000011068 loading method Methods 0.000 claims description 10
- 230000003628 erosive effect Effects 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 239000005416 organic matter Substances 0.000 abstract description 10
- 230000004308 accommodation Effects 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000000197 pyrolysis Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 230000007096 poisonous effect Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000012265 solid product Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 150000002391 heterocyclic compounds Chemical class 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- -1 tank body 1 Chemical class 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/0013—Controlling the temperature of the process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
- B01J19/0066—Stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00139—Controlling the temperature using electromagnetic heating
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of harmless processing units of crystal salt of high organic wastewater with high salt, including tank body and heating device；Feed inlet, discharge port and gas outlet are offered on the tank body, material enters from the feed inlet in the tank body, material is reacted in the tank body, and the gas for reacting generation is discharged from the gas outlet, and the innoxious mixed salt for reacting generation is discharged from the discharge port；Insulating layer is provided on the tank body, the heating device is that the material of the tank interior is heated.The principle that the present invention is thermally decomposed by using the organic matter in crystal salt, makes that the present apparatus is simple in structure, easy to operate, heating speed is fast, and temperature control is accurate, and equipment investment is few, small accommodation area, is readily cleaned, can run steadily in the long term.
Description
Technical field
The invention belongs to field of waste water treatment, and in particular to a kind of high organic wastewater crystal salt harmless treatment dress with high salt
It sets.
Background technology
The waste water that the industries such as petrochemical industry, coal chemical industry, metallurgy, pharmacy, printing and dyeing, papermaking are discharged in process of production has height
The characteristics of salt, high organic matter, for usual salt content in 3000mg/L or more, COD is in 2000mg/L or more, and temperature is higher, contains
There is the poisonous and hazardous organic matter such as a large amount of aromatic compounds, heterocyclic compound, hydrocarbon compound.High organic wastewater warp with high salt
It crosses wherein poisonous and hazardous substance after a series for the treatment of process to be largely concentrated in concentrated water, then the technique through evaporative crystallization
The organic matter of high-concentration hardly-degradable is further concentrated in crystal salt.Therefore, the crystal salt is innoxious while recycling is for I
Realize the key of zero-discharge technology.The advantages that pyrolytic technique is because of its good economy performance, secondary pollution is small, product utilization value is high quilt
Be considered realize crystal salt it is innoxious, stabilize and recycling one for the treatment of technology.
The present invention is a kind of high organic wastewater crystal salt harmless treatment device with high salt, is by high organic wastewater with high salt
Crystal salt anoxybiotic or less than theoretical oxygen under conditions of, crystal salt is added by electromagnetic heating and mechanically operated form
Heat is reacted to certain temperature, and high-concentration hardly-degradable organic cracking and oxidation in crystal salt are driven using pyrolytic technique,
High organic matter crystal salt with high salt is finally set to be converted into the device of pyrolysis gas and innoxious mixed salt.
Invention content
The object of the present invention is to provide a kind of high organic wastewater crystal salt harmless treatment device with high salt, which utilizes
In crystal salt the thermal stability of organic matter it is poor, it is heated easily decompose, the anaerobic or anoxic in the environment of, organic matter by thermal cracking,
Small molecule is resolved into, gaseous product and solid product are converted into.Gaseous product can be used as fuel gas and recycle in industrial production
In, solid product is mainly inorganic salts.Under the influence of moisture in not considering crystal salt, organic matter pyrolysis only needs seldom energy
Pyrolytic process can be completed.The apparatus structure is simple and convenient to operate, heating speed is fast, and temperature control is accurate, equipment investment is few,
Small accommodation area is readily cleaned, can run steadily in the long term.
To achieve the goals above, the technical solution adopted by the present invention is as follows：
A kind of high organic wastewater crystal salt harmless treatment device with high salt, it is characterised in that：Including tank body and heating device；Institute
It states and offers feed inlet, discharge port and gas outlet on tank body, material enters from the feed inlet in the tank body, and material is described
It is reacted in tank body, the gas for reacting generation is discharged from the gas outlet, and the waste material for reacting generation is discharged from the discharge port；
Insulating layer is provided on the tank body, the heating device is that the material of the tank interior is heated；
Preferably, further include agitating device, the agitating device is stirred the material of the tank interior；
Preferably, the agitating device includes stirring motor and blender, and the stirring motor passes through machinery with the blender
Device connects；
Preferably, the tank body is divided into upper and lower part, passes through flanged joint between the top and the lower part；
Preferably, it is provided with loading hopper on the feed inlet, charging flashboard is provided at the charging of the loading hopper；
Preferably, it is provided with blanking funnel below the blender, blanking flashboard is provided with below the blanking funnel, under described
Material flashboard is bonded completely with the discharge port, and the blender is with the blanking flashboard at a distance of 5~8cm；
Preferably, the top of the tank body offers the gas outlet, and pressure sensor is provided on the gas outlet；
Preferably, the material of the insulating layer is ceramic fibre；
Preferably, the heating device includes electromagnetic induction coil, and the electromagnetic induction coil is set to the outer of the insulating layer
Side, the electromagnetic induction coil are divided into the heating region of three or more from top to bottom；
Preferably, erosion resistant coating is arranged in the inner wall of the tank body.
Beneficial effects of the present invention can be summarized as follows：
1, the present invention provides a kind of high organic wastewater crystal salt harmless treatment device with high salt, the tank body is double flange groups
Part connects, and after equipment runs a period of time, when if necessary to overhaul or clean, can open flange and carry out operation；
2, a kind of high organic wastewater crystal salt harmless treatment device with high salt, electromagnetic induction coil directly carry out magnetic strength to tank body
It should generate heat, heating speed is fast, and heat utilization ratio is high；
3, a kind of high organic wastewater crystal salt harmless treatment device with high salt, electromagnetic induction coil are divided into three or more
Heating region, in this way can be according to the temperature of tank body, and the number of crystal salt, the start-stop of regulating winding appropriate can not only have
The energy saving function that can also play protection equipment of effect；
4, a kind of high organic wastewater crystal salt harmless treatment device with high salt, inner tank wall are arranged erosion resistant coating, not only contribute to
Erosion of the material to equipment is reduced, the generation of the organic bonding and rapid heat cycle phenomenon that reduce inner tank wall is more advantageous to.
Description of the drawings
Fig. 1 is the front schematic view of the present invention.
Major components symbol description is as follows：1, tank body；2, insulating layer；3, electromagnetic induction coil；4, stirring motor；5, it stirs
Device；6, loading hopper；7, flashboard is fed；8, blanking funnel；9, blanking flashboard；；10, temperature sensor；11, pressure sensor；
12, first flange component；13, second flange component；21, feed inlet；22, discharge port；23, gas outlet；31, an area is heated；32、
Heat 2nd area；33,3rd area are heated.
Specific implementation mode
In order to make the technical problems, technical solutions and beneficial effects solved by the present invention be more clearly understood, below in conjunction with
Accompanying drawings and embodiments, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein only to
It explains the present invention, is not intended to limit the present invention.
One kind high organic wastewater crystal salt harmless treatment device with high salt as shown in Figure 1, it is characterised in that：Including tank
Body 1 and heating device；Offer feed inlet 21, discharge port 22 and gas outlet 23 on the tank body 1, material is from the feed inlet 21
Into in the tank body 1, material is reacted in the tank body 1, and the gas for reacting generation is discharged from the gas outlet 23, instead
The inorganic salts that should be generated are discharged from the discharge port 22；Insulating layer 2 is provided on the tank body 1, the heating device is described
Material inside tank body 1 is heated.In more preferred embodiment, further include agitating device, the agitating device is to institute
The material inside tank body 1 is stated to be stirred.
In more preferred embodiment, the agitating device includes stirring motor 4 and blender 5, the stirring motor 4
It is connect by mechanical device with the blender 5.
In more preferred embodiment, the tank body 1 divides for upper and lower part, leads between the top and the lower part
Cross flanged joint.
In more preferred embodiment, loading hopper, the charging of the loading hopper are provided on the feed inlet 21
Place is provided with charging flashboard 7.
In more preferred embodiment, 5 lower section of the blender is provided with blanking funnel 8,8 lower section of the blanking funnel
It is provided with blanking flashboard 9, the blanking flashboard 9 is bonded completely with the discharge port 22, the blender 5 and the blanking flashboard
9 at a distance of 5~8cm.
In more preferred embodiment, the top of the tank body 1 offers the gas outlet 23, on the gas outlet 23
It is provided with pressure sensor 11.
In more preferred embodiment, the material of the insulating layer 2 is ceramic fibre.
In more preferred embodiment, the heating device includes electromagnetic induction coil 3, the electromagnetic induction coil 3
It is set to the outside of the insulating layer 2, the electromagnetic induction coil 3 is divided into the heating zone of three or more from top to bottom
Domain.
In more preferred embodiment, erosion resistant coating is arranged in the inner wall of the tank body 1.
In a certain specific embodiment, in order to which apparent statement is invented, the present invention is made below in conjunction with the accompanying drawings further
Description.
A kind of high organic wastewater crystal salt harmless treatment device with high salt, including tank body 1, insulating layer 2, heating device and
Agitating device.Insulating layer 2 is set to 1 outside of tank body, and heating device is set to 2 outside of insulating layer, and heating device is according to crystallization
Salt number set gradually from top to bottom heating one area 31, heating two areas 32 and heating three areas 33.
Heating device includes electromagnetic induction coil 3, and one area 31 of heating, two areas 32 of heating and three areas 33 of heating have respectively respectively
Corresponding electromagnetic induction coil 3, according to the variation of temperature in tank body 1 and crystal salt number, adjusting different zones electricity appropriate
The start and stop of magnetic induction coil 3 effectively energy saving not only can also protect equipment.Insulating layer 2 can obstruct tank body 1
The heat of steel plate reaches electromagnetic induction coil 3, and most heats are used for heating crystalline salt, greatly improve crystal salt
The efficiency of heating surface.Insulating layer 2 uses ceramic fiber blanket.
It is both provided with temperature sensor 10 above and below tank body 1, can effectively supervise the temperature in tank in this way, fits
When adjust electromagnetic induction coil 3 increase heat.
Tank body 1 is divide into upper part and lower part, and the upper and lower part of tank body 1 passes through 13 phase of first flange component 12 and second flange component
Connection, and first flange component 12 and second flange component 13 are to be detachably connected, after equipment runs a period of time, if
It needs to overhaul or clean, first flange component 12 can be opened and carry out operation with second flange component 13.
Feed inlet 21, discharge port 22 and gas outlet 23 are offered on tank body 1, feed inlet 21 is set to tank body with gas outlet 23
1 top, discharge port 22 are set to the bottom of tank body 1.Loading hopper is installed, the shape of loading hopper is loudspeaker on feed inlet 21
Shape, and charging flashboard 7 is provided at the charging of loading hopper, charging flashboard 7 is in whole sealing status when equipment is run, only
Have in emergency situations or can just be opened when feeding；Blanking funnel 8,8 lower section setting of blanking funnel are installed in discharge port 22
There are blanking flashboard 9, blanking flashboard 9 to be bonded completely with blanking funnel 8 and to be detachably connected；Pressure biography is provided on gas outlet 23
Sensor 11, for detecting pressure in tank body 1 in real time.
Agitating device includes stirring motor 4 and blender 5, and stirring motor 4 is set to the outer top of tank body 1, and blender 5 is set
It is placed in the interior bottom of tank body 1, for stirring motor 4 with blender 5 by mechanical device, blender 5 can be that fourth of the twelve Earthly Branches formula blender 5 also may be used
Think paddle agitator 5.
Electromagnetic induction coil 3 replaces traditional delivery type to heat by the way of sensing heating, directly to 1 ontology of tank body into
Row magnetic induction is generated heat, and heating speed can be improved, and reduces the heat loss in heating process, heat utilization efficiency is enable to reach 95% or more.
Electromagnetic induction coil 3 using electric energy convert when, electromagnetic induction coil 3 itself does not generate heat so that the heat of tank body 1 very it is high still
The surface temperature of electromagnetic induction coil 3 is but very low, can be good at the safety of life and property for protecting people.
The heating temperature of electromagnetic induction coil 3 is higher than the evaporation of organic matter and decomposition temperature in crystal salt.
In special circumstances, 1 inner wall of tank body is provided with erosion resistant coating, and erosion resistant coating can reduce erosion of the material to equipment, reduces
The generation of the organic bonding phenomenon of 1 inner wall of tank body.
Specific working mode：
When equipment is run, blanking flashboard 9 is closed, and charging flashboard 7 is opened, and crystal salt enters blanking funnel 8 by feeder, is tied
Under the effect of gravity, into tank body 1, the at this time startup of stirring motor 4, stirring motor 4 is stirred brilliant salt by mechanical connecting device drive
The rotation of device 5 is mixed, crystal salt is made uniformly to be distributed in tank body 1, after the filling of all crystal salts is completed, electromagnetic induction line at this time
Circle 3 is powered, and tank body 1 starts to warm up, we set a relatively small value to initial temperature, then pass through temperature sensor 10
The information fed back, gradually heats up, and after temperature reaches scheduled value, starts to keep the temperature, the gas that organic matter pyrolysis generates at this time
Cognition is discharged by gas outlet 23, according to the value of feedback of temperature sensor 10 and pressure sensor 11 after a period of time, suitably
The electromagnetic induction coil 3 of each heating zone of closing open blanking flashboard 9 after the completion of waiting for all materials heating, make outside crystal salt
Row.In special circumstances, after equipment runs a period of time, the first flange component 12 and second flange component 13 of tank body 1 are opened,
Tank body 1 can be overhauled or be cleaned.
The present invention is described in detail above by specific and preferred embodiment, but those skilled in the art should be bright
In vain, the invention is not limited in embodiment described above, all within the spirits and principles of the present invention, made by it is any modification,
Equivalent replacement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of high organic wastewater crystal salt harmless treatment device with high salt, it is characterised in that：Including tank body and heating device；
Feed inlet, discharge port and gas outlet are offered on the tank body, material enters from the feed inlet in the tank body, and material is in institute
State in tank body and reacted, the gas for reacting generation is discharged from the gas outlet, react the innoxious mixed salt of generation from it is described go out
Material mouth is discharged；Insulating layer is provided on the tank body, the heating device is that the material of the tank interior is heated.
2. a kind of high organic wastewater crystal salt harmless treatment device with high salt according to claim 1, it is characterised in that：Also
Including agitating device, the agitating device is stirred the material of the tank interior.
3. a kind of high organic wastewater crystal salt harmless treatment device with high salt according to claim 2, which is characterized in that institute
It includes stirring motor and blender to state agitating device, and the stirring motor is connect with the blender by mechanical device.
4. a kind of high organic wastewater crystal salt harmless treatment device with high salt according to claim 1, it is characterised in that：Institute
It states tank body and is divided into upper and lower part, pass through flanged joint between the top and the lower part.
5. a kind of high organic wastewater crystal salt harmless treatment device with high salt according to claim 1, it is characterised in that：Institute
It states and is provided with loading hopper on feed inlet, charging flashboard is provided at the charging of the loading hopper.
6. a kind of high organic wastewater crystal salt harmless treatment device with high salt according to claim 3, it is characterised in that：Institute
State and be provided with blanking funnel below blender, be provided with blanking flashboard below the blanking funnel, the blanking flashboard with it is described
Discharge port is bonded completely, and the blender is with the blanking flashboard at a distance of 5~8cm.
7. a kind of high organic wastewater crystal salt harmless treatment device with high salt according to claim 1, it is characterised in that：Institute
The top for stating tank body offers the gas outlet, and pressure sensor is provided on the gas outlet.
8. a kind of high organic wastewater crystal salt harmless treatment device with high salt according to claim 1, it is characterised in that：Institute
The material for stating insulating layer is ceramic fibre.
9. a kind of high organic wastewater crystal salt harmless treatment device with high salt according to claim 1, it is characterised in that：Institute
It includes electromagnetic induction coil to state heating device, and the electromagnetic induction coil is set to the outside of the insulating layer, the electromagnetism sense
Coil is answered to be divided into the heating region of three or more from top to bottom.
10. a kind of high organic wastewater crystal salt harmless treatment device with high salt according to claim 1, it is characterised in that：
Erosion resistant coating is arranged in the inner wall of the tank body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810658949.9A CN108479680A (en) | 2018-06-25 | 2018-06-25 | A kind of high organic wastewater crystal salt harmless treatment device with high salt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810658949.9A CN108479680A (en) | 2018-06-25 | 2018-06-25 | A kind of high organic wastewater crystal salt harmless treatment device with high salt |
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| Publication Number | Publication Date |
|---|---|
| CN108479680A true CN108479680A (en) | 2018-09-04 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810658949.9A Withdrawn CN108479680A (en) | 2018-06-25 | 2018-06-25 | A kind of high organic wastewater crystal salt harmless treatment device with high salt |
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Application publication date: 20180904 |