CN113816552A - Metal processing waste liquid purifying and recycling method and metal processing recovery liquid - Google Patents
Metal processing waste liquid purifying and recycling method and metal processing recovery liquid Download PDFInfo
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- CN113816552A CN113816552A CN202111047884.2A CN202111047884A CN113816552A CN 113816552 A CN113816552 A CN 113816552A CN 202111047884 A CN202111047884 A CN 202111047884A CN 113816552 A CN113816552 A CN 113816552A
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- 239000007788 liquid Substances 0.000 title claims abstract description 96
- 239000002699 waste material Substances 0.000 title claims abstract description 43
- 238000012545 processing Methods 0.000 title claims abstract description 37
- 239000002184 metal Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000004064 recycling Methods 0.000 title claims abstract description 23
- 238000011084 recovery Methods 0.000 title claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000001704 evaporation Methods 0.000 claims abstract description 14
- 230000008020 evaporation Effects 0.000 claims abstract description 14
- 238000000746 purification Methods 0.000 claims abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 239000003381 stabilizer Substances 0.000 claims abstract description 10
- 230000005484 gravity Effects 0.000 claims abstract description 9
- 239000012535 impurity Substances 0.000 claims abstract description 9
- 239000013556 antirust agent Substances 0.000 claims abstract description 8
- 239000002120 nanofilm Substances 0.000 claims abstract description 7
- 239000002245 particle Substances 0.000 claims abstract description 7
- 238000007667 floating Methods 0.000 claims abstract description 6
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 239000000706 filtrate Substances 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 238000005555 metalworking Methods 0.000 claims description 11
- TVIDDXQYHWJXFK-UHFFFAOYSA-N dodecanedioic acid Chemical compound OC(=O)CCCCCCCCCCC(O)=O TVIDDXQYHWJXFK-UHFFFAOYSA-N 0.000 claims description 8
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 6
- GIAFURWZWWWBQT-UHFFFAOYSA-N 2-(2-aminoethoxy)ethanol Chemical compound NCCOCCO GIAFURWZWWWBQT-UHFFFAOYSA-N 0.000 claims description 5
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical group OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 5
- CBTVGIZVANVGBH-UHFFFAOYSA-N aminomethyl propanol Chemical group CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 239000003112 inhibitor Substances 0.000 claims description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract description 8
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000008399 tap water Substances 0.000 abstract description 3
- 235000020679 tap water Nutrition 0.000 abstract description 3
- 238000004065 wastewater treatment Methods 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 description 8
- 239000012530 fluid Substances 0.000 description 6
- 239000013043 chemical agent Substances 0.000 description 4
- 239000002920 hazardous waste Substances 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910017053 inorganic salt Inorganic materials 0.000 description 2
- 238000005191 phase separation Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002910 solid waste Substances 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
- 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
-
- 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
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
-
- 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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- 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
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
-
- 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
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
-
- 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
- C02F2301/06—Pressure conditions
- C02F2301/063—Underpressure, vacuum
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention relates to the technical field of wastewater treatment, in particular to a metal processing waste liquid purifying and recycling method and a metal processing recycling liquid, wherein the metal processing waste liquid purifying and recycling method comprises the following steps: s1, performing gravity settling treatment on the waste liquid to remove floating oil and large-particle impurities to obtain a pretreatment liquid; s2, adding the pretreatment liquid into heat pump evaporation equipment for water evaporation and separation, and taking distillate to obtain a first treatment liquid; s3, filtering the first treatment solution by adopting an ultra-precise nano-film, and taking filtrate to obtain a second treatment solution; s4, adding a blending liquid into the second treatment liquid, and stirring for a first time; the blending liquid comprises a pH stabilizer, an antirust agent and a defoaming agent; the metal processing recovery liquid is obtained by treating the waste liquid after metal processing by the metal processing waste liquid purification and reuse method. The method for purifying and recycling the metal processing waste liquid can obtain the purified liquid with the same performance as tap water, has low energy consumption and no chemical addition, and avoids secondary pollution.
Description
Technical Field
The invention relates to the technical field of metal processing waste liquid treatment, in particular to a metal processing waste liquid purification and recycling method and a metal processing recovery liquid.
Background
The metal working fluid waste liquid belongs to high-concentration organic hazardous waste, the COD is as high as more than one hundred thousand, and the existing membrane method filtration, chemical treatment, biochemical degradation and other processes have respective defects. Soluble impurities (salt, soluble organic matters and the like) cannot be removed by membrane filtration, the comprehensive service life of each stage of membrane element is short, the problems of high material consumption cost and solid hazardous waste exist, the membrane element needs chemical cleaning to generate cleaning wastewater, and secondary hazardous waste is easy to generate; in the chemical treatment, a large amount of chemical agents are required to be added to the high-COD wastewater, a large amount of oil sludge solid waste is generated, the reduction effect is poor, a large amount of salt is introduced into produced water, and meanwhile, the COD is too high and can not be recycled or discharged; in the use process of the metal working fluid, a certain amount of bactericide needs to be added due to the consideration of working conditions and prolonging the service life, which is a difficult problem for a biochemical degradation process, and meanwhile, the COD of the metal working fluid is difficult to directly treat in a biochemical degradation mode, a composite process needs to be adopted, and the whole cost is increased.
If the purified liquid generated after the waste liquid of the metal working fluid is purified needs to be recycled, the problem of system suitability exists, so that the formula systems of various metal working fluids need to be mastered, and the purified liquid is prepared by combining with the actual application working conditions on site to meet the recycling performance of the purified liquid. At present, many environmental protection companies only focus on waste liquid treatment technology, but cannot master the original product formula system and the application principle thereof, so that the purification and the recycling are difficult to be effectively combined.
Disclosure of Invention
Based on the method, the invention provides a method for purifying and recycling metal processing waste liquid.
The invention also provides a metal processing recovery liquid.
A method for purifying and recycling metal processing waste liquid comprises the following steps:
s1, performing gravity settling treatment on the waste liquid to remove floating oil and large-particle impurities to obtain a pretreatment liquid;
s2, adding the pretreatment liquid into heat pump evaporation equipment for water evaporation and separation, and taking distillate to obtain a first treatment liquid;
s3, filtering the first treatment solution by adopting an ultra-precise nano-film, and taking filtrate to obtain a second treatment solution;
s4, adding a blending liquid into the second treatment liquid, and stirring for a first time;
the blending liquid comprises a pH stabilizer, an antirust agent and an antifoaming agent.
According to the method for purifying and recycling the metal processing waste liquid, the oil residue and salt in the water are comprehensively separated with lower energy consumption, and the purified liquid with the performance equivalent to that of tap water is obtained after blending treatment, and can be reused for production, so that water resources are saved; the whole purification process is pure physical purification, no chemical agent is added, and secondary pollution is avoided.
In one embodiment, the pressure of the heat pump evaporation equipment is-25 KPa to-5 KPa; the temperature of the heat pump evaporation equipment is 91-98 ℃.
In one embodiment, the pore size of the ultra-precise nano-film is 10nm-40 nm.
In one embodiment, the preparation liquid comprises the following components in parts by weight: 0.5-2 parts of pH stabilizer, 0.5-2 parts of antirust agent and 0.1-0.5 part of defoaming agent.
In one embodiment, the preparation solution comprises a pH stabilizer AMP95 and/or diglycolamine.
In one embodiment, the rust inhibitor is triethanolamine and/or dodecanedioic acid.
In one embodiment, the anti-foaming agent is a three-dimensional siloxane.
In one embodiment, the gravity settling is performed in a three-phase separator.
In one embodiment, between the steps S1 and S2, there is further step S10, and the step S10 is: and filtering the pretreatment solution.
The invention also provides a metal processing recovery liquid, which is obtained by treating the waste liquid after metal processing by the metal processing waste liquid purification and reuse method.
Detailed Description
In order that the invention may be more fully understood, reference will now be made to the following description. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The invention provides a method for purifying and recycling metal processing waste liquid, which is used for treating and recycling the waste liquid generated after metal processing so as to save water resources, and comprises the following steps:
and S1, performing gravity settling treatment on the waste liquid to remove floating oil and large-particle impurities to obtain a pretreatment liquid.
S2, adding the pretreatment liquid into a heat pump evaporation device for water evaporation and separation, and taking distillate to obtain a first treatment liquid.
And S3, filtering the first treatment liquid by adopting an ultra-precise nano membrane, and taking filtrate to obtain a second treatment liquid.
And S4, adding a preparation liquid into the second treatment liquid, and stirring for the first time.
Wherein the blending liquid comprises a pH stabilizer, an antirust agent and a defoaming agent.
Further, the preparation liquid comprises the following components in parts by weight: 0.5-2 parts of pH stabilizer, 0.5-2 parts of antirust agent and 0.1-0.5 part of defoaming agent.
Wherein the pH stabilizer in the preparation liquid is AMP95 and/or diglycolamine. The antirust agent is triethanolamine and/or dodecanedioic acid. The defoaming agent is three-dimensional siloxane. The components can play a role stably, and the recycling effect of the processing liquid is ensured.
In step S1, the gravity settling process utilizes the density difference of the oil residue liquid to remove floating oil and large-particle impurities, thereby facilitating the subsequent further processing.
In one embodiment, the gravity settling adopts an oil residue liquid three-phase separation device, and the three-phase separation device can remove floating oil and large-particle impurities in the waste liquid and leave the treated pretreatment liquid.
In one embodiment, the waste stream is pretreated prior to gravity settling. The pretreatment may be a preliminary precipitation, filtration, or the like.
The heat pump evaporation is to evaporate and separate water from the waste liquid by using the boiling point difference of oil and water of the emulsion so as to remove most of emulsified oil, inorganic salt and mechanical impurities.
Wherein the pressure of the heat pump evaporation equipment is-25 KPa to-5 KPa, and the temperature is 91 ℃ -98 ℃. The pressure and temperature conditions are controlled within the range, so that the emulsified oil, inorganic salt, mechanical impurities and other pollutant substances can be ensured to be reserved in equipment and not to overflow into steam, and the water quality index of the purified liquid is ensured.
Wherein, the filtering step is to further and thoroughly separate out the small molecular oily substances in the distillate by utilizing the grain size difference of oil and water of the distillate and adopting an ultra-precise nano-film filtering technology.
In one embodiment, the pore size of the ultra-precise nano-film is 10nm-40 nm. The filtering precision can realize the complete separation of the residual oily substances.
Further, step S10 is included between step S1 and step S2, and step S10 is: and filtering the pretreatment solution. After the preliminary filtration, large-particle substances can be filtered out firstly, so that the waste liquid purification can be carried out more efficiently in the subsequent steps.
According to the method for purifying and recycling the metal processing waste liquid, the oil residue and salt in the water are comprehensively separated with lower energy consumption, and the purified liquid with the performance equivalent to that of tap water is obtained after blending treatment, and can be reused for production, so that water resources are saved; the whole purification process is pure physical purification, no chemical agent is added, and secondary pollution is avoided.
Tests prove that by using the method, the metal working fluid waste liquid can be reduced by more than 80%, and only less than 20% of concentrated solution needs to be subjected to outsourcing treatment, so that the hazardous waste disposal cost is saved; the obtained purified liquid can be re-prepared and reused for production, so that water resources are saved; the whole process is pure physical purification, no chemical agent is added, and secondary pollution is avoided.
The invention also provides a metal processing recovery liquid, which is obtained by treating the waste liquid after metal processing by the metal processing waste liquid purification and reuse method.
In order to further illustrate the formulation therein, embodiments of the present invention are further illustrated below by way of several examples.
For example, a preparation solution comprises AMP 951 parts, triethanolamine 1 part and three-dimensional siloxane 0.3 part. The components are mixed uniformly.
For another example, the preparation liquid comprises 2 parts of diglycolamine, 2 parts of dodecanedioic acid and 0.5 part of three-dimensional siloxane. The components are mixed uniformly.
For another example, a preparation solution comprises 0.25 part of diglycolamine, 950.25 parts of AMP, 0.5 part of triethanolamine and 0.1 part of three-dimensional siloxane. The components are mixed uniformly.
The following tests are carried out on the waste liquid before and after the metal processing waste liquid purification and reuse method, and the results are shown in the table I.
Watch 1
As can be seen from the above table, the treated liquid reaches the discharge standard and can also be directly used as recycled water.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method for purifying and recycling metal processing waste liquid is characterized by comprising the following steps:
s1, performing gravity settling treatment on the waste liquid to remove floating oil and large-particle impurities to obtain a pretreatment liquid;
s2, adding the pretreatment liquid into heat pump evaporation equipment for water evaporation and separation, and taking distillate to obtain a first treatment liquid;
s3, filtering the first treatment solution by adopting an ultra-precise nano-film, and taking filtrate to obtain a second treatment solution;
s4, adding a blending liquid into the second treatment liquid, and stirring for a first time;
the blending liquid comprises a pH stabilizer, an antirust agent and an antifoaming agent.
2. The metal working waste liquid purifying and recycling method according to claim 1, wherein the pressure of the heat pump evaporation equipment is-25 KPa to-5 KPa; the temperature of the heat pump evaporation equipment is 91-98 ℃.
3. The method for purifying and recycling metal processing waste liquid according to claim 1, wherein the ultra-precise nano-film has a pore size of 10nm to 40 nm.
4. The metal processing waste liquid purification and reuse method according to claim 1, wherein the blending liquid comprises the following components in parts by weight: 0.5-2 parts of pH stabilizer, 0.5-2 parts of antirust agent and 0.1-0.5 part of defoaming agent.
5. The method for purifying and recycling metal processing waste liquid according to claim 1 or 4, wherein the pH stabilizer is AMP95 and/or diglycolamine.
6. The method for purifying and recycling metal processing waste liquid according to claim 1 or 4, wherein the rust inhibitor is triethanolamine and/or dodecanedioic acid.
7. The method for purifying and recycling metal processing waste liquid according to claim 1 or 4, wherein the defoaming agent is three-dimensional siloxane.
8. The method of claim 1, wherein the gravity settling is performed in a three-phase separator.
9. The method for purifying and recycling metal processing waste liquid according to claim 1, further comprising a step S10 between the step S1 and the step S2, wherein the step S10 is: and filtering the pretreatment solution.
10. A metal working recovery liquid, characterized in that the metal working recovery liquid is obtained by treating the waste liquid after metal working by the metal working waste liquid purification and reuse method of any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111047884.2A CN113816552A (en) | 2021-09-08 | 2021-09-08 | Metal processing waste liquid purifying and recycling method and metal processing recovery liquid |
| PCT/CN2021/137132 WO2023035450A1 (en) | 2021-09-08 | 2021-12-10 | Method for purifying and reusing metal processing waste solution, and metal processing recovery solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111047884.2A CN113816552A (en) | 2021-09-08 | 2021-09-08 | Metal processing waste liquid purifying and recycling method and metal processing recovery liquid |
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| CN113816552A true CN113816552A (en) | 2021-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111047884.2A Pending CN113816552A (en) | 2021-09-08 | 2021-09-08 | Metal processing waste liquid purifying and recycling method and metal processing recovery liquid |
Country Status (2)
| Country | Link |
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| CN (1) | CN113816552A (en) |
| WO (1) | WO2023035450A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8915301B1 (en) * | 2011-04-26 | 2014-12-23 | Mansour S. Bader | Treatment of saline streams |
| CN106479657A (en) * | 2016-09-18 | 2017-03-08 | 清华大学天津高端装备研究院 | A kind of water base fully synthetic titanium alloy cutting liquid |
| CN107555692A (en) * | 2017-10-25 | 2018-01-09 | 江苏天航水处理有限公司 | A kind of water oil separating method of emulsion waste liquid |
| CN108840500A (en) * | 2018-06-27 | 2018-11-20 | 西安禹智环保科技有限公司 | A kind of waste emulsified mixture processing method and processing device |
| CN110104810A (en) * | 2019-04-24 | 2019-08-09 | 常州润成环境科技有限公司 | The processing method of oil-containing cleaning waste water |
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| CN101240221A (en) * | 2008-02-29 | 2008-08-13 | 益田润石（北京）化工有限公司 | Water-soluble total synthesis metal processing liquid composition |
| CN206886886U (en) * | 2017-06-01 | 2018-01-16 | 冯合生 | Cutting fluid recovery and processing system |
| CN107162301A (en) * | 2017-06-01 | 2017-09-15 | 冯合生 | Cutting fluid recovery and processing system and processing method |
| CN109809618A (en) * | 2019-04-01 | 2019-05-28 | 安洁行方流体管理技术有限公司 | A kind of machinery industry oily waste liquor treatment process |
| KR102165275B1 (en) * | 2019-05-15 | 2020-10-14 | 주식회사 에이치엔 | Method for recovering lithium compound from waste solution of lithium secondary battery raw material manufacturing process and Apparatus for recovering lithium compound |
| CN110697998B (en) * | 2019-11-12 | 2022-04-22 | 东江环保股份有限公司 | Treatment method of copper oxide production wastewater |
| CN112194320B (en) * | 2020-10-09 | 2022-11-01 | 伸荣(上海)水处理环保工程有限公司 | Treatment process of cutting fluid wastewater |
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2021
- 2021-09-08 CN CN202111047884.2A patent/CN113816552A/en active Pending
- 2021-12-10 WO PCT/CN2021/137132 patent/WO2023035450A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8915301B1 (en) * | 2011-04-26 | 2014-12-23 | Mansour S. Bader | Treatment of saline streams |
| CN106479657A (en) * | 2016-09-18 | 2017-03-08 | 清华大学天津高端装备研究院 | A kind of water base fully synthetic titanium alloy cutting liquid |
| CN107555692A (en) * | 2017-10-25 | 2018-01-09 | 江苏天航水处理有限公司 | A kind of water oil separating method of emulsion waste liquid |
| CN108840500A (en) * | 2018-06-27 | 2018-11-20 | 西安禹智环保科技有限公司 | A kind of waste emulsified mixture processing method and processing device |
| CN110104810A (en) * | 2019-04-24 | 2019-08-09 | 常州润成环境科技有限公司 | The processing method of oil-containing cleaning waste water |
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| WO2023035450A1 (en) | 2023-03-16 |
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Application publication date: 20211221 |