CN109354241A - Industrial high-salinity wastewater zero-emission processing system and method rich in hardly degraded organic substance - Google Patents
Industrial high-salinity wastewater zero-emission processing system and method rich in hardly degraded organic substance Download PDFInfo
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- CN109354241A CN109354241A CN201811203885.XA CN201811203885A CN109354241A CN 109354241 A CN109354241 A CN 109354241A CN 201811203885 A CN201811203885 A CN 201811203885A CN 109354241 A CN109354241 A CN 109354241A
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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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D3/00—Halides of sodium, potassium or alkali metals in general
- C01D3/04—Chlorides
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/04—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste liquors, e.g. sulfite liquors
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/05—Conductivity or salinity
- C02F2209/055—Hardness
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The industrial high-salinity wastewater zero-emission processing system rich in hardly degraded organic substance that the invention discloses a kind of, including being sequentially connected logical wastewater disposal basin, filtering pretreatment mechanism, electrodialysis concentration and separation mechanism, desalination liquid pool, advanced oxidation mechanism, reverse osmosis membrane concentration mechanism and nanofiltration membrane concentrator structure, electrodialysis concentration and separation mechanism is also connected with concentrating liquid pool, and the concentrating liquid pool is connected with crystallization salt manufacturing mechanism；The water outlet of the nanofiltration membrane concentrator structure is respectively connected to filtering pretreatment mechanism and hardly degraded organic substance dope pond.When processing is rich in the industrial high-salt wastewater of hardly degraded organic substance, organic fouling problem can be slowed down using processing method and process route of the invention, extend the chemical cleaning period, and then extend the service life of film, guarantee the normal operation for dividing salt crystal system and sodium sulphate and sodium chloride crystallization purity salt, Mother liquid is reduced, reduces the operating cost of total system, while not dramatically increasing the cost of investment of system.
Description
Technical field
It is with high salt useless that the present invention relates to environmentally friendly water-treatment technology fields more particularly to a kind of industry rich in hardly degraded organic substance
Water zero discharge processing system and method.
Background technique
In all concentration techniques, electrodialysis is high slat-containing wastewater concentration technique most mature and most economical at present,
Since dissolubility inorganic salts disposably can be concentrated into 20% mass concentration or more by it, close to saturation solubility, just substantially
Reduce high energy consumption and evaporative crystallization cell processing scale with high investment, gradually by industrial enterprises such as electric power and coal chemical industries
It is applied in the engineering project of high slat-containing wastewater zero-emission.But when inorganic salts are concentrated into 20% mass concentration by electrodialysis
When, the organic matter in water inlet is trapped within dilute side, and on the one hand this can guarantee the purity of concentrated water side crystal salt, on the other hand light
Water side is also required to consider the problems of that organic matter is constantly enriched in further desalination reuse.And organic concentration is higher, more holds
Reverse osmosis membrane easy to pollute, and most of high-level oxidation technology is all influenced degradation by the interference of Chlorine in Solution ion concentration and has
The efficiency of machine object.
In addition, the major defect in existing industrial high slat-containing wastewater reuse and zero-emission rich in hardly degraded organic substance is
It needs to carry out frequent chemical cleaning to high-pressure membrane concentration systems, slows down organic fouling problem, shorten the service life of film, make
The purity of crystal salt is improved with the freezing and crystallizing technology of multistage high-level oxidation technology degradation of organic substances, and use high energy consumption, together
When discharge a large amount of mother liquors with high salt and ultimately form carnallite hazardous waste, the investment cost and operating cost of whole flow process all occupies height not
Under, it is difficult to more economical high-salinity wastewater zero-emission is realized in industrial circles such as papermaking, pharmacy, printing and dyeing.
So if there is one kind can be by the process side of electrodialysis and film concentration and advanced oxidation optimum organization
Method not only can solve stifled organic matter film dirt, crystallization purity salt, reduce the problems such as Mother liquid, but also reduces entire height and contain
The investment and operating cost of salt waste water recycling and Zero discharging system, will be to the high-salt wastewater of the industry such as such as papermaking, pharmacy, printing and dyeing
Zero-emission provides new thinking and solution.The present invention proposes a kind of new rich in difficult to degrade aiming at this demand
The industrial high-salinity wastewater zero-emission processing method of organic matter.
Summary of the invention
The present invention for overcome the deficiencies in the prior art, provides a kind of industrial high-salt wastewater rich in hardly degraded organic substance
Zero-discharge treatment system and method, this method not only can solve stifled organic matter film dirt, crystallization purity salt, reduction Mother liquid
The problems such as, and reduce entire high slat-containing wastewater reuse and the investment of Zero discharging system and operating cost.
To achieve the goals above, the invention adopts the following technical scheme: a kind of industry rich in hardly degraded organic substance is high
Salt Wastewater zero-discharge treatment system, including being sequentially connected logical wastewater disposal basin, filtering pretreatment mechanism, electrodialysis concentration and separation machine
Structure, desalination liquid pool, advanced oxidation mechanism, reverse osmosis membrane concentration mechanism and nanofiltration membrane concentrator structure, the electrodialysis concentration point
Structure of disembarking also is connected with concentrating liquid pool, and the concentrating liquid pool is connected with crystallization salt manufacturing mechanism；The nanofiltration membrane concentrator structure
Water outlet is respectively connected to filtering pretreatment mechanism and hardly degraded organic substance dope pond.
Preferably, the crystallization salt manufacturing mechanism includes concentrating liquid pool, the freezing sodium chloride crystal being connected with concentrating liquid pool
Device, freezing sodium chloride crystal device are connected with thermal method sulfate crystal device and clean solution tank respectively；Clean solution tank again with nanofiltration membrane separator
Structure is connected, and nanofiltration membrane is connected with sodium chloride crystallizer, hardly degraded organic substance dope pond and concentrating liquid pool again respectively.
A kind of industrial high-salinity wastewater zero-emission processing method rich in hardly degraded organic substance, comprising the following steps:
1) removing hardness, colloid, suspended matter, dissolution silicon etc. by filtering pretreatment mechanism influences electrodialysis concentration and subsequent
Crystallize the impurity of purity salt
2) filtered waste water is through electrodialysis process, and fresh water enters desalination liquid pool, after the concentrated liquid pool of concentrated stream again into
Row crystallization salt manufacturing；
3) fresh water is dense into reverse osmosis membrane by entering back into advanced oxidation mechanism removal partial organic substances after desalination liquid pool
It contracts further desalination, if obtained concentrated water amount is greater than setting value, concentrated water is back to step 2)；
4) when concentrated water amount obtained in step 3) is less than setting value, organic matter and inorganic is separated into nanofiltration membrane concentrator structure
Salt, obtained production water return to filtering pretreatment mechanism, and concentrated water enters the dense pond of hardly degraded organic substance.
Preferably, the concentrated water for flowing through concentrating liquid pool uses freezing and crystallizing mirabilite method, the saltcake of output is melted by heating
Enter thermal method sulfate crystal device later and prepares anhydrous sodium sulfate；Supernatant is freezed using nanofiltration UF membrane, nanofiltration membrane produces water
Sodium chloride salt is prepared through sodium chloride crystallizer, nanofiltration membrane concentrated water a part is back to concentrating liquid pool, and a part has into difficult to degrade
Individual mother liquor drying process device or direct can be used in machine object dope pond, final decrement to the smallest hardly degraded organic substance dope
It burns.
The present invention has the characteristics that following and the utility model has the advantages that works as the industrial high-salt wastewater that processing is rich in hardly degraded organic substance
When, organic fouling problem can be slowed down using processing method and process route of the invention, extend the chemical cleaning period, in turn
Extend the service life of film, guarantees the normal operation for dividing salt crystal system and sodium sulphate and sodium chloride crystallization purity salt, reduce female
Liquid discharge amount reduces the operating cost of total system, while not dramatically increasing the cost of investment of system.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is flow diagram of the invention.
Fig. 2 is the crystallization salt manufacturing flow diagram in the present invention.
Specific embodiment
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing.It should be noted that for
The explanation of these embodiments is used to help understand the present invention, but and does not constitute a limitation of the invention.In addition, disclosed below
The each embodiment of the present invention involved in technical characteristic can be combined with each other as long as they do not conflict with each other.
As shown, a kind of industrial high-salinity wastewater zero-emission processing system rich in hardly degraded organic substance, including successively phase
The wastewater disposal basin of connection, filtering pretreatment mechanism, electrodialysis are concentrated and separated mechanism, desalination liquid pool, advanced oxidation mechanism, reverse osmosis membrane
Mechanism and nanofiltration membrane concentrator structure is concentrated, electrodialysis concentration and separation mechanism is also connected with concentrating liquid pool, concentrating liquid pool and crystallization
Salt manufacturing mechanism is connected；The water outlet of nanofiltration membrane concentrator structure is respectively connected to filtering pretreatment mechanism and hardly degraded organic substance is dense
Liquid pool.
In further improvement of the present invention, crystallizing salt manufacturing mechanism includes concentrating liquid pool, the freezing being connected with concentrating liquid pool
Sodium chloride crystal device, freezing sodium chloride crystal device are connected with thermal method sulfate crystal device and clean solution tank respectively；Clean solution tank again with nanofiltration
UF membrane mechanism is connected, and nanofiltration membrane is connected with sodium chloride crystallizer, hardly degraded organic substance dope pond and concentrating liquid pool again respectively.
Wherein, it is super that more medium filter, sand filter, accurate filter, normal pressures formula can be used in filtering pretreatment mechanism
The equipment such as filter membrane carry out preliminary purification to waste water；Electrodialysis is concentrated and separated mechanism, under DC electric field effect, in desalting chamber
Zwitterion is constantly directed migration and penetrates selective anion and cation exchange membrane, zwitterion quilt in enriched chamber
Enrichment, to realize the process of ion concentration separation, the solution in desalting chamber constantly flows into desalination liquid pool, the solution in enriched chamber
Constantly flow into concentrating liquid pool；It is multiple that Fenton oxidation, ozone-hydrogen peroxide combined oxidation, ozone-catalyst can be used in advanced oxidation mechanism
It closes the techniques such as oxidation to handle the desalinization liquor of low saline salinity, removal electrodialysis concentration and separation mechanism is intercepted in desalinization liquor side
Organic matter；Conventional brackish water desalination or sea water desalination reverse osmosis membrane can be used in reverse osmosis membrane concentration mechanism, to advanced oxygen
Change the later desalinization liquor of the most of organic matter of mechanism removal to be concentrated and separated, the fresh water of output meets industrial reuse demand, instead
The concentrated water of infiltration is handled into subsequent nanofiltration membrane concentrator structure；Rolling nanofiltration membrane or disc-type can be used in nanofiltration membrane concentrator structure
Nanofiltration membrane is concentrated and separated reverse osmosis concentrated water, intercepts organic matter and part high price yin that advanced oxidation mechanism fails removal
Ion, the production water of nanofiltration membrane mainly contain the monovalent salt based on sodium chloride, and back to filtering pretreatment, mechanism recycles desalination, nanofiltration
The concentrated water of film mainly contains organic matter and part high-valence anion salt difficult to degrade, into hardly degraded organic substance dope pond；Finally
Decrement to the smallest hardly degraded organic substance dope can be used individual mother liquor drying process device or directly burn.
A kind of industrial high-salinity wastewater zero-emission processing method rich in hardly degraded organic substance, comprising the following steps:
1) removing hardness, colloid, suspended matter, dissolution silicon etc. by filtering pretreatment mechanism influences electrodialysis concentration and subsequent
Crystallize the impurity of purity salt
2) filtered waste water is through electrodialysis process, and fresh water enters desalination liquid pool, after the concentrated liquid pool of concentrated stream again into
Row crystallization salt manufacturing；
3) fresh water generated in step 2) removes partial organic substances by entering back into advanced oxidation mechanism after desalination liquid pool,
It enters back into after further desalination is concentrated in reverse osmosis membrane and obtains fresh water and concentrated water, fresh water reuse, concentrated water amount is greater than nanofiltration membrane concentrator
The setting value of structure, the i.e. design scale of nanofiltration membrane concentrator structure, then concentrated water is back to step 2), and concentrated water amount is concentrated less than nanofiltration membrane
4) design scale of mechanism then enters step, wherein the setting value of filter membrane concentration mechanism is set according to actual needs；
4) when concentrated water amount obtained in step 3) is less than setting value, organic matter and inorganic is separated into nanofiltration membrane concentrator structure
Salt produces water and returns to filtering pretreatment mechanism, and concentrated water enters the dense pond of hardly degraded organic substance.
In addition, first using freezing and crystallizing mirabilite method in crystallization salt-making process, the saltcake of output is being adopted after thermal melting
Anhydrous sodium sulfate, i.e. anhydrous sodium sulphate are prepared with thermal method sulfate crystal device, supernatant caused by freezing and crystallizing saltcake process passes through again
Cross nanofiltration UF membrane, nanofiltration membrane produces water through sodium chloride crystallizer salt manufacturing, and nanofiltration membrane concentrated water a part is back to concentrating liquid pool, and one
Divide and enter hardly degraded organic substance dope pond, it is dry that individual mother liquor can be used in final decrement to the smallest hardly degraded organic substance dope
Processing unit is directly burned.
In conjunction with attached drawing, the embodiments of the present invention are described in detail above, but the present invention is not limited to described implementations
Mode.For a person skilled in the art, in the case where not departing from the principle of the invention and spirit, to these embodiments
A variety of change, modification, replacement and modification are carried out, are still fallen in protection scope of the present invention.
Claims (4)
1. a kind of industrial high-salinity wastewater zero-emission processing system rich in hardly degraded organic substance, it is characterised in that: including successively phase
The wastewater disposal basin of connection, filtering pretreatment mechanism, electrodialysis are concentrated and separated mechanism, desalination liquid pool, advanced oxidation mechanism, reverse osmosis membrane
Mechanism and nanofiltration membrane concentrator structure is concentrated, electrodialysis concentration and separation mechanism is also connected with concentrating liquid pool, the concentrate
Pond is connected with crystallization salt manufacturing mechanism；The water outlet of the nanofiltration membrane concentrator structure is respectively connected to filtering pretreatment mechanism and difficulty
Degradation of organic substances dope pond.
2. the industrial high-salinity wastewater zero-emission processing system according to claim 1 rich in hardly degraded organic substance, feature
Be: the crystallization salt manufacturing mechanism includes concentrating liquid pool, the freezing sodium chloride crystal device being connected with concentrating liquid pool, freezing saltcake
Crystallizer is connected with thermal method sulfate crystal device and clean solution tank respectively；Clean solution tank is connected with nanofiltration membrane separating mechanism again, nanofiltration membrane
Difference is connected with sodium chloride crystallizer, hardly degraded organic substance dope pond and concentrating liquid pool again.
3. the industrial high-salinity wastewater zero-emission processing method according to claim 1 rich in hardly degraded organic substance, feature
It is: the following steps are included:
1) removing hardness, colloid, suspended matter, dissolution silicon etc. by filtering pretreatment mechanism influences electrodialysis concentration and later crystallization
The impurity of purity salt
2) for filtered waste water through electrodialysis process, fresh water enters desalination liquid pool, is tied again after the concentrated liquid pool of concentrated stream
Brilliant salt manufacturing；
3) fresh water is by entering back into advanced oxidation mechanism removal partial organic substances after desalination liquid pool, into reverse osmosis membrane be concentrated into
One step desalination, if obtained concentrated water amount is greater than setting value, concentrated water is back to step 2)；
4) when concentrated water amount obtained in step 3) is less than setting value, organic matter and inorganic salts are separated into nanofiltration membrane concentrator structure,
Obtained production water returns to filtering pretreatment mechanism, and concentrated water enters the dense pond of hardly degraded organic substance.
4. the industrial high-salinity wastewater zero-emission processing method according to claim 3 rich in hardly degraded organic substance, feature
It is: it is as follows wherein crystallizes salt extraction process: flows through the concentrated water of concentrating liquid pool using freezing and crystallizing mirabilite method, the saltcake of output passes through
Heating enters thermal method sulfate crystal device after melting and prepares anhydrous sodium sulfate,；Supernatant is freezed using nanofiltration UF membrane, is received
Filter membrane produces water and prepares sodium chloride salt through sodium chloride crystallizer, and nanofiltration membrane concentrated water a part is back to concentrating liquid pool, and a part enters
Hardly degraded organic substance dope pond, final decrement to the smallest hardly degraded organic substance dope can be used individual mother liquor and be dried dress
It sets or directly burns.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811203885.XA CN109354241A (en) | 2018-10-16 | 2018-10-16 | Industrial high-salinity wastewater zero-emission processing system and method rich in hardly degraded organic substance |
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| CN201811203885.XA CN109354241A (en) | 2018-10-16 | 2018-10-16 | Industrial high-salinity wastewater zero-emission processing system and method rich in hardly degraded organic substance |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110143705A (en) * | 2019-06-17 | 2019-08-20 | 杭州水处理技术研究开发中心有限公司 | A kind of processing method of the high-salt wastewater of type organic containing chloromethanes |
| CN111018264A (en) * | 2019-12-31 | 2020-04-17 | 江苏蓝必盛化工环保股份有限公司 | Process method for treating o-nitre wastewater |
| CN111153539A (en) * | 2019-04-29 | 2020-05-15 | 内蒙古晶泰环境科技有限责任公司 | Salt separation crystallization system and process for high-salinity wastewater containing organic matters |
| CN111333249A (en) * | 2020-03-16 | 2020-06-26 | 新地环保技术有限公司 | Method for treating waste liquid containing chlorinated organic matter |
| CN112479416A (en) * | 2020-10-28 | 2021-03-12 | 惠州市东江环保技术有限公司 | Inorganic wastewater treatment process |
| CN113024005A (en) * | 2021-03-30 | 2021-06-25 | 常州时升环境工程科技有限公司 | Resource treatment process for hardly-degradable salt-containing organic wastewater |
| CN113526750A (en) * | 2020-04-22 | 2021-10-22 | 大连波美科技有限公司 | High COD effluent's of high salt processing system |
| CN113754148A (en) * | 2021-09-26 | 2021-12-07 | 导洁(北京)环境科技有限公司 | Desulfurization wastewater zero-discharge treatment method and system |
-
2018
- 2018-10-16 CN CN201811203885.XA patent/CN109354241A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111153539A (en) * | 2019-04-29 | 2020-05-15 | 内蒙古晶泰环境科技有限责任公司 | Salt separation crystallization system and process for high-salinity wastewater containing organic matters |
| CN110143705A (en) * | 2019-06-17 | 2019-08-20 | 杭州水处理技术研究开发中心有限公司 | A kind of processing method of the high-salt wastewater of type organic containing chloromethanes |
| CN111018264A (en) * | 2019-12-31 | 2020-04-17 | 江苏蓝必盛化工环保股份有限公司 | Process method for treating o-nitre wastewater |
| CN111333249A (en) * | 2020-03-16 | 2020-06-26 | 新地环保技术有限公司 | Method for treating waste liquid containing chlorinated organic matter |
| CN113526750A (en) * | 2020-04-22 | 2021-10-22 | 大连波美科技有限公司 | High COD effluent's of high salt processing system |
| CN112479416A (en) * | 2020-10-28 | 2021-03-12 | 惠州市东江环保技术有限公司 | Inorganic wastewater treatment process |
| CN113024005A (en) * | 2021-03-30 | 2021-06-25 | 常州时升环境工程科技有限公司 | Resource treatment process for hardly-degradable salt-containing organic wastewater |
| CN113754148A (en) * | 2021-09-26 | 2021-12-07 | 导洁(北京)环境科技有限公司 | Desulfurization wastewater zero-discharge treatment method and system |
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Application publication date: 20190219 |