CN108675437A - Acrylic fiber wastewater treatment process - Google Patents
Acrylic fiber wastewater treatment process Download PDFInfo
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- CN108675437A CN108675437A CN201810654437.5A CN201810654437A CN108675437A CN 108675437 A CN108675437 A CN 108675437A CN 201810654437 A CN201810654437 A CN 201810654437A CN 108675437 A CN108675437 A CN 108675437A
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
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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
- C02F2001/007—Processes including a sedimentation step
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
- C02F2103/38—Polymers
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
This application provides a kind of acrylic fiber wastewater treatment process, including：Biochemical organic matter is decomposed by the microorganism in biological activated carbon system；Pass through not biochemical organic matter in the activated carbon adsorption waste water in biological activated carbon system；Adsorption saturation activated carbon is regenerated by regenerating active carbon system；Activated carbon after regeneration is returned into biological activated carbon system.The application is handled acrylic fiber wastewater first with BAC Technology, play the synergistic effect of microorganism and activated carbon, extend Biodegradation Times, utmostly play microbial biochemical degradation, and biochemical organic matter is adsorbed in activated carbon and is removed, realization effectively removes Organic substance in water, while saturated activity charcoal is returned in biological activated carbon system and recycled after regenerative system is handled.
Description
Technical field
The present invention relates to wastewater treatments, more particularly, to acrylic fiber wastewater treatment process.
Background technology
Acrylic fibers, also known as polyacrylonitrile fibre are a kind of staple fibre that high polymer long chain synthetic polymer is formed, propylene
Nitrile content at least accounts for 85%.Since appearance is fluffy, manual softness, has many advantages, such as good fast light, antibacterial, warmth retention property, someone
The laudatory title for making wool belongs to important petrochemicals, is widely used in the system of clothes processing, ornament production and new material
It is standby to wait fields.
Currently, domestic Acrylic Fibers Plant is mostly used with acrylonitrile raw material, acrylic fibers product is produced by one, two step wet processings.Its
The acrylic fiber wastewater pollutant concentration of generation is high, complicated component, and containing a large amount of dimethylacetylamide (DMAC), SCN-,
Toxic hardly degraded organic substance, the high score such as CN-, acrylonitrile (AN) oligomer and other aldehydes, cyanogen class, phenols, nitrile, alkanes
Sub- polymer and inorganic salts, biodegradability is poor, belongs to typical toxic industrial waste water difficult to degrade.The country mostly uses A/O at present
(Anoxcic/Oxic) method of biochemical treatment handles it, but due in waste water refractory organic it is more, it is existing
There is process effect poor, leads to final outflow water COD (COD) and NH4 +The discharge mark of-N concentration far beyond national regulation
It is accurate.
It due to complicated component in acrylic fiber production wastewater, is more toxic, the pollutant proportion of wherein difficult for biological degradation reaches
40% or more, there are biological inhibition ingredients, and biodegradability is very poor, do not there is the key technology for solving the problems, such as this also at present.Present nitrile
Synthetic fibre factory is mostly handled it using biochemical system, and the techniques such as combined air flotation, precipitation, system final outflow water COD mono-
As for 200mg/L or so, and influenced by poisonous and harmful hardly degraded organic substance in water, it is micro- in activated sludge process aerating system
Biological concentration is difficult to keep higher level.For the waste water that production acrylic fibers generate, materialized pretreatment technical research in recent years has
Very much, include mainly electrolysis, Fenton oxidation, ozone and photochemical catalytic oxidation etc. and combinations thereof technique, pass through the above advanced oxidation
Equal pretreating process, although obtaining certain effect, remaining unchanged, it is not high to organic removal rate to exist, and biochemical improvement is limited, greatly
More researchs only rest on laboratory stage, it is difficult to reach the processing requirement of practical application.Therefore, for the spy of acrylic fiber production wastewater
How point weakens the toxicity to microorganism, reduces dirty organic pollutants content, becomes and ensure acrylic fiber production process sewage row up to standard
The key put.
Invention content
The present invention is directed to the characteristics of acrylic fiber wastewater, and BAC Technology and Wet Oxidation Process are effectively combined,
It is handled first with BAC Technology, plays the maximum biochemical action of microorganism, while will not using activated carbon
The toxic organic compound of energy biochemical treatment is adsorbed, and is then handled saturated activity charcoal by Wet Oxidation Process, by it
The organic matter of middle absorption is decomposed, and the absorption property of activity recovery charcoal, the system of returning to is recycled, and is realized useless to acrylic fibers
Water is effectively treated, and provides safeguard for its qualified discharge.
This application provides a kind of techniques of processing waste water, including：It can by the microorganism pair in biological activated carbon system
Biochemical organic matter is decomposed；Pass through not biochemical organic matter in the activated carbon adsorption waste water in biological activated carbon system；Pass through
Regenerating active carbon system regenerates adsorption saturation activated carbon；Activated carbon after regeneration returns to the biological activated carbon system.
In above-mentioned technique, wherein the activated carbon in the biological activated carbon system forms glue with the microorganism
Body suspended matter, concentration of suspension control are 8000~22000mg/L, preferably 10000~18000mg/L, wherein microbial biomass
Content control is measured in 10%~30%, preferably 15~25%.
In above-mentioned technique, wherein regenerated including the use of wet oxidation reaction the activated carbon by the activity
The organic matter of charcoal absorption is decomposed into carbon dioxide, water and the shorter organic matter of carbochain.
In above-mentioned technique, wherein after the activated carbon after making regeneration returns to the biological activated carbon system, utilize institute
The microorganism organic matter shorter to the carbochain is stated to decompose.
In above-mentioned technique, the mud mixture of biological activated carbon system discharge flow to secondary settling tank, in the secondary settling tank,
Realize that above-mentioned colloidal suspended substance is detached with waste water solid, and it is concentrated after, obtain concentration active charcoal sludge, make the concentration activated carbon
Mud is regenerated into the regenerating active carbon system.
In above-mentioned technique, wherein lived by adding at least one of sodium carbonate and sodium hydroxide to adjust the concentration
The pH value of property charcoal mud.
In above-mentioned technique, wherein the exhaust gas generated in the regenerating active carbon system is made to return to the biological activated carbon
In system.
In above-mentioned technique, wherein the pH value is 10.5~11.5.
In above-mentioned technique, wherein a concentration of 50000mg/L~180000mg/L of the concentration active charcoal sludge.
In above-mentioned technique, further include：Passing through the organic matter in the activated carbon adsorption waste water in biological activated carbon system
Before, make processing of the waste water successively Jing Guo gas floating and biochemical treatment system.
The application is handled acrylic fiber wastewater using BAC Technology, and performance microorganism cooperates with work with activated carbon
With extension Biodegradation Times utmostly play microbial biochemical degradation, and biochemical organic matter is adsorbed on work
Property charcoal in be removed, realization Organic substance in water is effectively removed.
Description of the drawings
Fig. 1 shows the process flow chart of the treatment process of acrylic fiber wastewater according to an embodiment of the invention.
Fig. 2 shows the schematic diagrames of the processing unit of acrylic fiber wastewater according to an embodiment of the invention, in fig. 2, each to mark
Number corresponding component is as follows：
1- air-flotation systems, 2- biochemical treatment systems, 3- intermediate pools, 4- biological activated carbon systems, 5- secondary settling tanks, 6- sand filtrations
System, 7- Aeration fans, 8- concentration basins, 9- concentrate activated carbon mud groove, 10- medicine systems, 11- high-pressure pumps, 12- air compressor machines, 13-
Heat exchanger, 14- reactors, 15- surge tanks, 16- regenerated carbon slots, 17- spray columns, 18- exhaust fans, the end ponds 19-.
Specific implementation mode
The present invention is proposed using biological activated carbon system+wet air regeneration system in combination technique to production acrylic fibers generation
Waste water is handled, and BAC Technology and Wet Oxidation Process are combined, and plays the maximum biochemical action of microorganism,
Simultaneously gaseous oxygen is utilized under the conditions of high temperature (180~280 DEG C) and high pressure (3.8~7.4MPa) using Wet Oxidation Process
Gas (be usually air) makees oxidant, to being regenerated to saturated activity charcoal, the organic pollution oxygenolysis that will wherein adsorb
For CO2、H2The small molecule organic material of O and short chain improve biodegradability, and mixed liquor foldback after regeneration is returned at biological activated carbon
Reason system continues to degrade using microorganism to organic matter, while regenerating the activated carbon return system recycling for restoring adsorptivity,
Realize system sludge zero-emission.Biological activated carbon pond water outlet passages through which vital energy circulates rushes after Sand Filtration System is further processed, removal wherein suspended matter
And activated carbon, realize system final outflow water qualified discharge.In this application, if not otherwise specified, waste water refers to acrylic fibers
Waste water produces waste water caused by acrylic fibers, for example, producing the waste water that acrylic fibers generate by wet processing commonly used in the art.
It illustrates below in conjunction with the accompanying drawings, to more fully understand the application.Fig. 1 shows according to an embodiment of the invention
The process flow chart of the treatment process of acrylic fiber wastewater.Fig. 2 shows the processing of acrylic fiber wastewater according to an embodiment of the invention dresses
The schematic diagram set.
It, will wherein suspended particulate substance and can after acrylic fiber wastewater first passes around the air supporting 1 of front, the processing of biochemical treatment system 2
Biochemical degradation organic matter is removed, and is then entered at biological activated carbon system 4 by intermediate pool 3 (or intake pool)
Reason.Biochemical treatment system 2 may include system for anaerobic treatment and/or Aerobic Process for Treatment system.
In biological activated carbon system 4, the association of activated carbon adsorption and Microbial Communities in Activated Sludge biochemical degradation function is played
Same-action can first be adsorbed hardly degraded organic substance by activated carbon, then microorganism be recycled to degrade it, to extend
Biodegradation Times can utmostly play microbial biochemical degradation；Microorganism is played centainly in activated carbon adsorption simultaneously
Protective effect, for some environmentally sensitive microorganisms (such as nitrifier and some can decompose the special of the low COD of biochemical
Strain) for it is extremely important.Activated carbon also plays the role of weightening, acts synergistically at flocculant (such as polyacrylamide (PAM))
Lower and microbes composite structure is close and settles quick colloid, these is made to be proliferated slow and environmentally sensitive special micro- life
The possibility that logistics is lost drops to extremely low.Substance (wherein also including microorganism and dissolved oxygen) in activated carbon adsorption water, to accelerate
Substance transmits.The water outlet of biological activated carbon system 4 is precipitated through secondary settling tank 5, and the separation of realization sludge and water is (for example, pass through nature
Gravitational settling realize sludge and water separation) after, the sludge concentration in biological activated carbon system 4 is ensured by sludge reflux, is gone out
Water is final to discharge after Sand Filtration System 6 is further processed suspended matter.It, can be with before the water outlet of secondary settling tank 5 enters whole pond 19
Alternately through Sand Filtration System 6.
In biological activated carbon system 4, the concentration of suspension control in biological activated carbon system 4 is 8000~22000mg/
L, preferably 10000~18000mg/L, wherein the gross mass relative to microorganism and activated carbon, the control of microbial quality content
In 10%~30%, preferably 15~25%.For the sedimentation of suspension for preventing in biological activated carbon system 4, biological activated carbon system
System 4 is equipped with Aeration fan 7.
Due to being more toxic containing some in waste water, being difficult to biodegradable organic pollution, pass through biological activated carbon system
System 4 can not still degrade to it, which can be tightly held by activated carbon enrichment.Activated carbon will be unable to biological decomposition completely
Organic matter adsorption saturation after, into regenerating active carbon system, at high temperature under high pressure, by wet oxidation reaction, by absorption
Organic pollution oxygenolysis is CO2、H2O and the shorter organic substance of carbochain, then foldback return biological activated carbon processing system 4, pass through
Microorganism is further degraded, while the adsorptivity of the activated carbon after regeneration is restored, and returns to biological activated carbon system 4, can be real
Now recycle.
Regenerating active carbon system may include concentration basin 8, concentration activated carbon mud groove 9, medicine system 10, high-pressure pump 11, sky
Press system 12, heat exchanger 13, reactor 14, surge tank 15 and regenerated carbon mud groove 16.Regenerated carbon mud groove 16
Top is equipped with spray column 17 and exhaust fan 18.
The control of regenerating active carbon system enters concentration a concentration of 50000mg/L~180000mg/L of active charcoal sludge, preferably
80000~150000mg/L, to ensure system into mud concentration, the waste charcoal mud that secondary settling tank 5 need to be discharged is concentrated again；For
It prevents the incrustation ion in charcoal mud from generating insoluble solid dirt during the reaction, sodium hydroxide and carbon is added by medicine system 10
Sour sodium, it is 10.0~11.5, preferably 10.5~11.3 to adjust concentration charcoal mud pH value；Active charcoal sludge is concentrated by high-pressure pump 11 to add
After pressure, the pressure-air generated with air compressor system 12 is mixed in a certain ratio, and organic matter is adsorbed by concentrating in active charcoal sludge
Amount be determined, after mixing medium through heat exchanger 13 enter reactor reaction, the reaction time be 0.5~2h, preferably 1~
1.5h, reaction temperature be 220~280 DEG C, preferably 230~260 DEG C, pressure be 4.0~6.5MPa, preferably 4.3~
6.0MPa, the outlet high temperature active charcoal mud of reactor 14 enter heat exchanger 13 and exchange heat with entrance low temperature active charcoal mud, pass through heat exchange
The heat exchange of device 13, regenerating active carbon system can realize autothermal equilibrium substantially.Regenerated carbon mud passes through pressure after heat exchanger 13
After pressure is reduced to normal pressure by force control valve, enter regenerated carbon mud groove 16 by surge tank 15, active charcoal sludge passes through after regeneration
Regenerated carbon dredge pump is transmitted back to biological activated carbon system 4, the exhaust gas generated after regenerative system reaction, by being located at regeneration activity
The exhaust fan 18 for being connected to spray column 17 on 16 top of charcoal mud groove also returns to biological activated carbon system 4 and carries out Air Exposure.This
Field technology personnel are it should be understood that in the case where that can realize the above functions of regenerating active carbon system, regenerating active carbon system
The relative position of all parts in system can also carry out some other suitable variations.
Below with the specific embodiment illustratively wastewater treatment process of the application and corresponding wastewater parameter.
It is 500~700mg/L that certain acrylic fibers workshop, which generates waste water COD, and water is 300~400m3/h.Before the waste water first passes through
Hold air supporting 1, biochemical treatment system 2 aerobic treatment unit after, continued with into biological activated carbon system, using microorganism with
Activated carbon acts synergistically, and handles wherein remaining persistent organic pollutants, biological activated carbon pool volume 10000m3,
Middle sludge concentration is 12000~15000mg/L, aeration quantity 260m3/ min, pH value are 7.5~8.5, are discharged through secondary settling tank 2
It precipitates, realize that qualified discharge, final water treatment effect see the table below after the sand filtration of Sand Filtration System 6：
The treatment scale of regenerating active carbon system is 7t/h, concentrates a concentration of 80000~120000mg/L of carbon mud, air compressor machine
The air quantity of system is 560kg/h~800kg/h, and the pressure of regenerating active carbon system is 4.2~5.6MPa, the temperature of reactor 14
It it is 230~250 DEG C, regenerating active carbon system operational parameters are as follows：
The application is handled acrylic fiber wastewater using BAC Technology, and performance microorganism cooperates with work with activated carbon
With extension Biodegradation Times utmostly play microbial biochemical degradation, and biochemical organic matter is adsorbed on work
Property charcoal in be removed, realization Organic substance in water is effectively removed.In addition, by BAC Technology and Wet Oxidation Process
It is effectively combined, the toxic organic compound for being unable to biochemical treatment is adsorbed using activated carbon, then passes through wet oxidation skill
Art carries out regeneration treatment to saturated activity charcoal, will wherein adsorb organic matter and decompose, the absorption property of activity recovery charcoal returns to
Biological activated carbon system circulation utilizes, and realizes recycling for activated carbon in biological activated carbon system, solves standard biologic
The emission problem of the new activated carbon of continuous supplementation and saturated activity charcoal is needed in activated carbon system.
Active charcoal sludge is concentrated after the processing of regenerating active carbon system, wherein the organic pollution oxygenolysis adsorbed is CO2、
H2The biodegradability of O and short chain organic substance, remaining organic pollution greatly improves, after returning to biological activated carbon system, profit
It is handled with microbial action, improves system water biodegradability.To prevent concentration active charcoal sludge in regenerating active carbon
Insoluble solid dirt is formed in system, by adding sodium carbonate and sodium hydroxide, is adjusted concentration active charcoal sludge pH value, is made it in work
Property charcoal regenerative system in form the dirty layer that calcium carbonate, magnesium hydroxide etc. are soluble in acid, then cleaned, gone by pickling system
Except the solid dirt in reaction process, ensure the normal operation of regenerating active carbon system.The exhaust gas of regenerating active carbon system discharge, is returned
To front end biological activated carbon system, reduce the discharge of noxious material in exhaust gas.Due to the activity of biological activated carbon system discharge
Charcoal mud is Ke Xunhuanliyong by regenerating active carbon system, therefore sludge zero discharge can be achieved in waste water treatment system substantially.Acrylic fibers are useless
Water is after the technique of the application and device processing, system final outflow water COD<60mg/L provides guarantee for its qualified discharge.
Claims (10)
1. a kind of technique of processing waste water, including：
Pass through the organic matter in the activated carbon adsorption waste water in biological activated carbon system；
Pass through the part of organic matter described in the microorganism decomposition in the biological activated carbon system；
The activated carbon is regenerated by regenerating active carbon system；
The activated carbon after regeneration is set to return to the biological activated carbon system.
2. technique according to claim 1, wherein the activated carbon in the biological activated carbon system and micro- life
Object forms colloid, and concentration of suspension control is 8000~22000mg/L, wherein the control of microbial quality content 10%~
30%.
3. technique according to claim 1, wherein being regenerated to the activated carbon will including the use of wet oxidation reaction
The organic matter of the activated carbon adsorption is decomposed into carbon dioxide, water and the shorter organic matter of carbochain.
4. technique according to claim 1, wherein activated carbon after making regeneration return the biological activated carbon system it
Afterwards, it is decomposed using the microorganism organic matter shorter to the carbochain.
5. technique according to claim 1, wherein biological activated carbon system discharge mud mixture flow to secondary settling tank,
In the secondary settling tank, activated carbon forms suspended matter with microorganism and realizes separation of solid and liquid with waste water, and lives by being concentrated to give concentration
Property charcoal mud, makes the concentration active charcoal sludge be regenerated into the regenerating active carbon system.
6. technique according to claim 5, wherein by adding at least one of sodium carbonate and sodium hydroxide to adjust
State the pH value of concentration active charcoal sludge.
7. technique according to claim 1, wherein the exhaust gas generated in the regenerating active carbon system is made to return to the life
In object activated carbon system.
8. technique according to claim 6, wherein the pH value is 10.5~11.5.
9. technique according to claim 6, wherein a concentration of 50000mg/L of the concentration active charcoal sludge~
180000mg/L。
10. technique according to claim 1, further includes：Passing through the activated carbon adsorption waste water in biological activated carbon system
In organic matter before, make processing of the waste water successively Jing Guo gas floating and biochemical treatment system.
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| CN201810654437.5A CN108675437A (en) | 2018-06-22 | 2018-06-22 | Acrylic fiber wastewater treatment process |
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| CN201810654437.5A CN108675437A (en) | 2018-06-22 | 2018-06-22 | Acrylic fiber wastewater treatment process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115196837A (en) * | 2022-08-09 | 2022-10-18 | 北京艾孚润德环境科技有限责任公司 | Multiphase flow pollutant treatment process with renewable and recyclable carrier |
| CN116375300A (en) * | 2023-06-05 | 2023-07-04 | 威海蓝创环保设备有限公司 | DMF (dimethyl formamide) -containing wastewater treatment process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115196837A (en) * | 2022-08-09 | 2022-10-18 | 北京艾孚润德环境科技有限责任公司 | Multiphase flow pollutant treatment process with renewable and recyclable carrier |
| CN116375300A (en) * | 2023-06-05 | 2023-07-04 | 威海蓝创环保设备有限公司 | DMF (dimethyl formamide) -containing wastewater treatment process |
| CN116375300B (en) * | 2023-06-05 | 2023-09-19 | 威海蓝创环保设备有限公司 | DMF (dimethyl formamide) -containing wastewater treatment process |
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