CN106630341A - Sodium chloride separating and recycling method for high-salinity wastewater - Google Patents
Sodium chloride separating and recycling method for high-salinity wastewater Download PDFInfo
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- CN106630341A CN106630341A CN201610847120.4A CN201610847120A CN106630341A CN 106630341 A CN106630341 A CN 106630341A CN 201610847120 A CN201610847120 A CN 201610847120A CN 106630341 A CN106630341 A CN 106630341A
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- sodium chloride
- high pressure
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- salt wastewater
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- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 title claims abstract description 69
- 239000011780 sodium chloride Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000002351 wastewater Substances 0.000 title claims abstract description 30
- 238000004064 recycling Methods 0.000 title abstract 2
- 239000012528 membrane Substances 0.000 claims abstract description 26
- 150000003839 salts Chemical class 0.000 claims abstract description 20
- 238000002425 crystallisation Methods 0.000 claims abstract description 17
- 230000008025 crystallization Effects 0.000 claims abstract description 15
- 238000001728 nano-filtration Methods 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 239000012141 concentrate Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000001704 evaporation Methods 0.000 claims description 11
- 239000012466 permeate Substances 0.000 claims description 11
- 230000008020 evaporation Effects 0.000 claims description 9
- 239000005416 organic matter Substances 0.000 claims description 8
- 230000003647 oxidation Effects 0.000 claims description 7
- 238000007254 oxidation reaction Methods 0.000 claims description 7
- 230000001590 oxidative effect Effects 0.000 claims description 7
- 229910002651 NO3 Inorganic materials 0.000 claims description 5
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 5
- 239000012452 mother liquor Substances 0.000 claims description 5
- 239000007800 oxidant agent Substances 0.000 claims description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical group OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 2
- -1 iron-magnesium-aluminium Chemical group 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 230000026676 system process Effects 0.000 claims description 2
- 235000002639 sodium chloride Nutrition 0.000 claims 17
- 229960002668 sodium chloride Drugs 0.000 claims 13
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims 2
- 239000000701 coagulant Substances 0.000 claims 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims 1
- 229920000642 polymer Polymers 0.000 claims 1
- 239000007787 solid Substances 0.000 abstract description 15
- 238000005516 engineering process Methods 0.000 abstract description 7
- 239000012535 impurity Substances 0.000 abstract description 3
- 238000004065 wastewater treatment Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract 1
- 229910017053 inorganic salt Inorganic materials 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 7
- 239000011777 magnesium Substances 0.000 description 5
- 239000010842 industrial wastewater Substances 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 230000007096 poisonous effect Effects 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical group C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 150000003863 ammonium salts Chemical class 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
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 150000002391 heterocyclic compounds Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- PALNZFJYSCMLBK-UHFFFAOYSA-K magnesium;potassium;trichloride;hexahydrate Chemical compound O.O.O.O.O.O.[Mg+2].[Cl-].[Cl-].[Cl-].[K+] PALNZFJYSCMLBK-UHFFFAOYSA-K 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- 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
- C01D3/06—Preparation by working up brines; seawater or spent lyes
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
-
- 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
-
- 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
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to a sodium chloride separating and recycling method for high-salinity wastewater. According to the method, divalent salts and organic matters are separated from monovalent salts by using the characteristics of a nano-filtration membrane, a large amount of organic matters are removed from the wastewater, and then, an evaporative concentration and crystallization step is carried out so as to separately obtain sodium chloride solids with fewer impurities. The method has the characteristics of reasonable flow, resource recovery, economical efficiency, high efficiency and stability in operation; and as a deep treatment technology, organic matters and inorganic salt dominated total dissolved solids (TDS) are effectively removed from the high-salinity wastewater, and meanwhile, the sodium chloride solids with fewer impurities are obtained, so that the defects of the existing high-salinity wastewater treatment technologies can be excellently made up, and the treatment of high-salinity concentrated solutions achieves the aim of zero solid and liquid discharge.
Description
Technical field
The present invention relates to a kind of method of wastewater treatment, the sodium chloride separating and recovering method of particularly a kind of high-salt wastewater.
Background technology
Industrial wastewater contains the poisonous and harmful substances such as a large amount of phenol, hydrocarbon, oil, heavy metal, and organic pollution contained by waste water includes
Phenols, polycyclc aromatic compound and nitrogenous, oxygen, the heterocyclic compound of sulphur etc., are that one kind typically contains hardly degraded organic substance
Industrial wastewater.At present the domestic technology for processing high-salt wastewater is mainly direct evaporative crystallisation process, but produces after evaporative crystallization
Solid carnallite complicated component, containing poisonous and harmful substance, can only be processed as danger is useless.So not only easily cause environment secondary
Pollution, returns enterprise and causes the useless disposal costs of the danger of great number.The content of the invention
Goal of the invention：It is an object of the invention to provide a kind of flow process is rationally, can resource reclaim, economical and efficient is stable
Effective removal high-salt wastewater in organic matter and the total dissolved solid (TDS) based on inorganic salts high-salt wastewater sodium chloride
Separating and recovering method.
Technical scheme：The invention discloses a kind of sodium chloride separating and recovering method of high-salt wastewater, comprises the following steps：
1) high-salt wastewater is first passed through into high-voltage operation nanofiltration membrane system, obtains high pressure NF membrane permeate and high pressure NF membrane
Concentrate；
2) high pressure NF membrane permeate is obtained into the concentration of sodium chloride high power by the evaporimeter of sodium chloride evaporation and crystallization system
Liquid, its concentration reaches 2 × 105Mg/L～2.5 × 105Mg/L, the steam for evaporating to be formed and enter reuse pool conduct after condensed water
Recycle-water is utilized；
3) sodium chloride high power concentrate is again by the crystallizer of sodium chloride evaporation and crystallization system by the saturation chlorination in solution
Sodium forms crystallization and salts out, and obtains 95%～98.5% sodium chloride salt, and the mother liquor for finally obtaining 0.5%～2% returns to biochemistry
System；
4) high pressure NF membrane concentrate is entered into oxidative system carries out oxidation processes, reduces CODcr, in making concentrate
CODcr200mg/L～500mg/L.
5) by above-mentioned oxidized reduction CODcrRemaining water and condensed water mixing afterwards enters reuse pool as reuse water conservancy
With.
Wherein, the inorganic salts in the high-salt wastewater described in step 1 mainly contain sodium chloride, simultaneously containing a small amount of organic matter.
Wherein, the separation by high pressure nanofiltration membrane system described in step 2, the main sodium chloride-containing of high pressure NF membrane permeate
With and a small amount of nitrate, sulfate radical is less than 20～200mg/L, rejection to organics rate 70～90%.
Wherein, high pressure NF membrane permeate described in step 3 obtains sodium chloride crystal salt by evaporation and crystallization system, remaining
What about 1%～3% evaporation mother liquor was mainly contained is that nitrate and organic matter are vented back to biochemical system process.
Wherein, the high pressure NF membrane concentrate described in step 4 is produced and add in concentrate oxidant and flocculant, makes CODcr
Reduce entering divalent salts evaporative crystallization steps after most 200mg/L～500mg/L.
Wherein, the oxidant is hydrogen peroxide or ozone；Flocculant is iron-magnesium-aluminium inorganic composite flocculant or macromolecule
Flocculant.
Wherein, present invention oxidation technology used is selected from, but not limited to, Fenton oxidation, ozone oxidation, electrolytic oxidation technology.
Wherein, total dissolved solid (Totaldissolvedsolids, TDS) refers to the total content that material is dissolved in water,
Including calcium ions and magnesium ions, colloid, suspended particulate substance, protein, virus, bacterium, microorganism and corpse, units of measurement is mg/litre
(mg/L), it shows in 1 liter of water dissolved with how many milligrams of total dissolved solids.
Wherein, CODcr is referred to using potassium bichromate (K2Cr207) chemical oxygen consumption (COC) that determines as oxidant.
Wherein, nanofiltration membrane of the invention, is selected from, but not limited to, dish tubular nanofiltration membrane, board-like NF membrane, rolling nanofiltration
Form membrane.
The processing method of the high-salt wastewater of the present invention, is divided divalent salts and organic matter from monovalent salt using nanofiltration membrane property
Separate out and, remove the large amount of organic matter that contains in waste water, be then evaporated concentration and crystallisation step, respectively obtain impurity compared with
Few solid sodium chloride solid.
The method has flow process rationally, can resource reclaim, economical and efficient, the characteristics of stable, it is used as a kind of depth
Treatment technology, effectively removes organic matter and the total dissolved solid (TDS) based on inorganic salts in high-salt wastewater, while obtaining miscellaneous
The less solid sodium chloride solid of matter, can be very good to make up the deficiency in existing high-salt wastewater treatment technology, concentrate high salt
Liquid process reaches the target of " solid, liquid zero-emission ".
The processing method of the high-salt wastewater of the present invention has quite varied application prospect, and in future more areas will also be had
Its superiority can be embodied, such as printing and dyeing, Coal Chemical Industry, pharmacy industry, using this method to high-concentration salt-containing wastewater at
Reason, substantially reduces the useless generation of danger, reduces the high cost that enterprise undertakes to useless process of danger, while waste can also be become into resource,
Obtain product sales revenue.
The present invention has just just started development in waste water industry, it is believed that can be widely applied to more necks in this technology in the future
Domain, the waste in more water process resource is changed into, and is reduced environmental pollution and is improved resource utilization.
Beneficial effect：
Description of the drawings
Fig. 1 is the process chart of the sodium chloride separating and recovering method of high-salt wastewater；
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is further elucidated.
Embodiment
Certain industrial high-salt wastewater salt content after pretreatment is 6 × 104Mg/L, wherein sodium chloride are 3.5 × 104Mg/L,
Other about 0.3 × 104Mg/L (nitrate and ammonium salt), by the high-salt wastewater 1000kg high pressure nanofiltration membrane treatment equipment is first passed through,
Obtain the permeate of about 800kg and the concentrate of about 200kg.Permeate enters monovalent salt evaporation and crystallization system, in evaporation process
Vapor be changed into after condensed water as recycle-water.The mother liquor of about the 1% of crystallization process generation returns biochemical system reprocessing.Knot
Solid salt 47kg of moisture content about 30% is obtained after crystalline substance, after being dried sodium chloride crystal salt 32.7kg is obtained.Concentrate is by senior
Oxidation processes organics removal, makes CODcr less than 500mg/l, as recycle-water, about 10% mother after then mixing with condensed water
Liquid is back to front end nanofiltration membrane treatment equipment to be continued to separate, and is capable of achieving resource reclaim.
Table 1 evaporates permeate evaporative crystallization composition
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvement can also be made, these improvement also should be regarded as the present invention's
Protection domain.
Claims (6)
1. a kind of sodium chloride separating and recovering method of high-salt wastewater, is characterized in that, comprise the following steps：
1) high-salt wastewater is first passed through into high-voltage operation nanofiltration membrane system, obtains high pressure NF membrane permeate and the concentration of high pressure NF membrane
Liquid；
2) high pressure NF membrane permeate is obtained into sodium chloride high power concentrate by the evaporimeter of sodium chloride evaporation and crystallization system, its
Concentration reaches 2 × 105Mg/L～2.5 × 105Mg/L, the steam for evaporating to be formed and enter reuse pool as reuse after condensed water
Water conservancy is used；
3) sodium chloride high power concentrate is again by the crystallizer of sodium chloride evaporation and crystallization system by the saturated sodium-chloride shape in solution
Salt out into crystallization, obtain 95%～98.5% sodium chloride salt, the mother liquor for finally obtaining 0.5%～2% returns to biochemical system；
4) high pressure NF membrane concentrate is entered into oxidative system carries out oxidation processes, reduces CODcr, in making concentrate
CODcr200mg/L～500mg/L.
5) by above-mentioned oxidized reduction CODcrRemaining water and condensed water mixing afterwards enters reuse pool and utilizes as recycle-water.
2. a kind of sodium chloride separating and recovering method of high-salt wastewater according to claim 1, is characterized in that, step 1 institute
Inorganic salts in the high-salt wastewater stated mainly contain sodium chloride, simultaneously containing a small amount of organic matter.
3. a kind of sodium chloride separating and recovering method of high-salt wastewater according to claim 1, is characterized in that, step 2 institute
The separation by high pressure nanofiltration membrane system stated, the main sodium chloride-containing of high pressure NF membrane permeate and and a small amount of nitrate, sulfuric acid
20～200mg/L of root, rejection to organics rate 70～90%.
4. a kind of sodium chloride separating and recovering method of high-salt wastewater according to claim 1, is characterized in that, step 3 institute
High pressure NF membrane permeate is stated by evaporation and crystallization system, sodium chloride crystal salt is obtained, remaining about 1%～3% evaporates mother liquor master
Contain and have plenty of nitrate and organic matter is vented back to biochemical system process.
5. a kind of sodium chloride separating and recovering method of high-salt wastewater according to claim 1, is characterized in that, step 4 institute
The high pressure NF membrane concentrate stated is produced in concentrate and adds oxidant, dosage 1-10mg/L, and flocculant, dosage 5-
30mg/L, makes CODcrReduce entering divalent salts evaporative crystallization steps after most 200～500mg/L.
6. the sodium chloride separating and recovering method of a kind of high-salt wastewater according to claim 1 or 5, is characterized in that, described
Oxidant is hydrogen peroxide or ozone；Flocculant is iron-magnesium-aluminium inorganic composite flocculant or high polymer coagulant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610847120.4A CN106630341A (en) | 2016-09-23 | 2016-09-23 | Sodium chloride separating and recycling method for high-salinity wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610847120.4A CN106630341A (en) | 2016-09-23 | 2016-09-23 | Sodium chloride separating and recycling method for high-salinity wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106630341A true CN106630341A (en) | 2017-05-10 |
Family
ID=58854624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610847120.4A Pending CN106630341A (en) | 2016-09-23 | 2016-09-23 | Sodium chloride separating and recycling method for high-salinity wastewater |
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| CN (1) | CN106630341A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107473488A (en) * | 2017-10-09 | 2017-12-15 | 新乡市锦源化工有限公司 | Para-ester produces the processing method of waste water |
| CN107827303A (en) * | 2017-09-26 | 2018-03-23 | 上海晶宇环境工程股份有限公司 | Flying dust washings processing technique and its special equipment |
| CN110342546A (en) * | 2019-01-24 | 2019-10-18 | 内蒙古晶泰环境科技有限责任公司 | A kind of haline water salt resource recovering system and its technique |
| CN112225375A (en) * | 2020-09-26 | 2021-01-15 | 安徽金禾实业股份有限公司 | Pretreatment method of sucralose wastewater |
| CN113698014A (en) * | 2020-05-20 | 2021-11-26 | 中国石油天然气集团有限公司 | Method for recovering refined reverse osmosis concentrated water |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105236650A (en) * | 2015-09-29 | 2016-01-13 | 北京新源国能科技有限公司 | Wastewater processing method |
| CN105948362A (en) * | 2016-06-24 | 2016-09-21 | 东华工程科技股份有限公司 | Coal chemical RO strong brine treatment process |
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2016
- 2016-09-23 CN CN201610847120.4A patent/CN106630341A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105236650A (en) * | 2015-09-29 | 2016-01-13 | 北京新源国能科技有限公司 | Wastewater processing method |
| CN105948362A (en) * | 2016-06-24 | 2016-09-21 | 东华工程科技股份有限公司 | Coal chemical RO strong brine treatment process |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107827303A (en) * | 2017-09-26 | 2018-03-23 | 上海晶宇环境工程股份有限公司 | Flying dust washings processing technique and its special equipment |
| CN107473488A (en) * | 2017-10-09 | 2017-12-15 | 新乡市锦源化工有限公司 | Para-ester produces the processing method of waste water |
| CN110342546A (en) * | 2019-01-24 | 2019-10-18 | 内蒙古晶泰环境科技有限责任公司 | A kind of haline water salt resource recovering system and its technique |
| CN113698014A (en) * | 2020-05-20 | 2021-11-26 | 中国石油天然气集团有限公司 | Method for recovering refined reverse osmosis concentrated water |
| CN112225375A (en) * | 2020-09-26 | 2021-01-15 | 安徽金禾实业股份有限公司 | Pretreatment method of sucralose wastewater |
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Application publication date: 20170510 |