CN104310644A - Treatment method of cutting fluid wastewater - Google Patents
Treatment method of cutting fluid wastewater Download PDFInfo
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- CN104310644A CN104310644A CN201410569606.7A CN201410569606A CN104310644A CN 104310644 A CN104310644 A CN 104310644A CN 201410569606 A CN201410569606 A CN 201410569606A CN 104310644 A CN104310644 A CN 104310644A
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- cutting liquid
- treatment
- liquid wastewater
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- 238000000034 method Methods 0.000 title claims abstract description 44
- 239000002351 wastewater Substances 0.000 title claims abstract description 33
- 239000002173 cutting fluid Substances 0.000 title abstract description 14
- 230000003647 oxidation Effects 0.000 claims abstract description 15
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 15
- 230000001699 photocatalysis Effects 0.000 claims abstract description 10
- 230000015271 coagulation Effects 0.000 claims abstract description 6
- 238000005345 coagulation Methods 0.000 claims abstract description 6
- 238000005520 cutting process Methods 0.000 claims description 49
- 239000007788 liquid Substances 0.000 claims description 46
- 230000008569 process Effects 0.000 claims description 36
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 16
- 230000015556 catabolic process Effects 0.000 claims description 15
- 238000004945 emulsification Methods 0.000 claims description 13
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 12
- 230000001112 coagulating effect Effects 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- 238000007146 photocatalysis Methods 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 6
- 238000005189 flocculation Methods 0.000 claims description 6
- 230000016615 flocculation Effects 0.000 claims description 6
- 230000003197 catalytic effect Effects 0.000 claims description 5
- 239000000839 emulsion Substances 0.000 claims description 5
- SURQXAFEQWPFPV-UHFFFAOYSA-L iron(2+) sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Fe+2].[O-]S([O-])(=O)=O SURQXAFEQWPFPV-UHFFFAOYSA-L 0.000 claims description 5
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 5
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 3
- 239000000920 calcium hydroxide Substances 0.000 claims description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 3
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims description 3
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910017604 nitric acid Inorganic materials 0.000 claims description 3
- 229920002401 polyacrylamide Polymers 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 230000001737 promoting effect Effects 0.000 abstract 1
- 230000004044 response Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000000108 ultra-filtration Methods 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- 239000004530 micro-emulsion Substances 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
- 230000003245 working effect Effects 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- 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
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
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)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention provides a treatment method of cutting fluid wastewater. The treatment method comprises the following steps: a) demulsification treatment; b) coagulation treatment; and c) photo-catalytic oxidation treatment. The invention discloses the treatment method of cutting fluid wastewater. The treatment method is simple to operate, low in treatment cost and good in separating effect. The COD (chemical oxygen demand) removal rate can reach 99% and the treatment method has a relatively good promotional and application values.
Description
Technical field
The present invention relates to a kind of cutting fluid, particularly relate to a kind for the treatment of process of Cutting Liquid Wastewater, belong to cutting fluid technical field.
Background technology
Cutting fluid is that one is used in metal cutting, the mill course of processing, is used for the industrial type fluid of Cooling and Lubricator cutter and workpiece, and it is formed through science compound compatibility by several functions auxiliary agent.As a kind of important complementary supplementary material of metal cutting process, metal working fluid can extend the work-ing life of cutter and grinding tool, improves the smooth finish of workpiece, reduces cutting, grinding force, and its Main Function comprises cooling, lubrication, antirust and cleaning four aspects.Cutting fluid mainly oil base and water base two classes of general use, in recent years, water-base cutting fluid has outstanding feature and is able to apply more and more widely in cooling, cleaning, rust-preventing characteristic, oilness etc., and water-base cutting fluid can be divided into micro-emulsion type, oil-in-water type and complete synthesis type.Along with the requirement of harsh new complete processing and novel material in mechanized equipment manufacture, add continually developing of new type water-solubility additive, water-base cutting fluid is developed rapidly.
At present, there is a relatively more outstanding environmental problem in the application of cutting fluid, due to cutting fluid recycle after can go bad, lost efficacy, become Cutting Liquid Wastewater, and the emulsification degree of Cutting Liquid Wastewater is high, stable chemical nature, biodegradability are poor.The organic waste water of this high density, difficult degradation, once wantonly be discharged, will cause great pollution to environment, therefore need carry out necessary process to Cutting Liquid Wastewater, realize the zero release of waste water.In current art, chemical method, electrolytic process, ultrafiltration process etc. are mainly contained to the treatment process of Cutting Liquid Wastewater.Chemical method has less investment, easy-operating advantage, but treatment effect is not fine; Though electrolytic process, ultrafiltration process can realize good treatment effect, the investment of its required equipment is comparatively large, and cost is very high, and application is subject to certain restrictions.
Summary of the invention
For the demand, the invention provides a kind for the treatment of process of Cutting Liquid Wastewater, this treatment process be simple to operate, processing cost is low, good separating effect, its COD clearance can reach 99%, has good application value.
The present invention is a kind for the treatment of process of Cutting Liquid Wastewater, and described treatment process comprises the steps: a) breakdown of emulsion process, b) coagulating treatment, c) Treatment by Photocatalysis Oxidation.
In a preferred embodiment of the present invention, in described step a), breakdown of emulsion process comprises the steps: 1) hydrochloric acid to be added adjust ph in Cutting Liquid Wastewater be 3; 2) emulsion splitter nitric acid is added in Cutting Liquid Wastewater and carry out breakdown of emulsion process by the demulsification technology condition of setting.
In a preferred embodiment of the present invention, described demulsification technology condition is: stirring velocity 120r/min, churning time 2min for the first time; Second time stirring velocity 30r/min, churning time 5min; Time of repose 2h.
In a preferred embodiment of the present invention, in described step b), coagulating treatment comprises the steps: 1) calcium hydroxide is added breakdown of emulsion process after used cutting liquid in adjust ph be 7.5; 2) composite flocculation agent is added in used cutting liquid and carry out coagulating treatment by the coagulation process condition of setting.
In a preferred embodiment of the present invention, described composite flocculation agent by bodied ferric sulfate and polyacrylamide in mass ratio 60:1 mix, its add-on is 1500mg/L.
In a preferred embodiment of the present invention, described coagulation process condition is: stirring velocity 120r/min, churning time 2min for the first time; Second time stirring velocity 30r/min, churning time 5min; Time of repose 2h.
In a preferred embodiment of the present invention, in described step c), Treatment by Photocatalysis Oxidation comprises the steps: 1) hydrochloric acid to be added adjust ph in the used cutting liquid after coagulating treatment be 3; 2) hydrogen peroxide, iron vitriol are added in used cutting liquid carry out Treatment by Photocatalysis Oxidation by the photochemical catalytic oxidation processing condition of setting.
In a preferred embodiment of the present invention, described hydrogen peroxide add-on is 60mg/L, and iron vitriol add-on is 700mg/L.
In a preferred embodiment of the present invention, described photochemical catalytic oxidation processing condition are: ultraviolet light irradiation degree 50uW/cm
2, ultraviolet lighting time 7h.
Present invention is disclosed a kind for the treatment of process of Cutting Liquid Wastewater, this treatment process be simple to operate, processing cost is low, good separating effect, its COD clearance can reach 99%, has good application value.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is the process figure of embodiment of the present invention cutting fluid waste water treatment method.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Fig. 1 is the process figure of embodiment of the present invention cutting fluid waste water treatment method; This treatment process comprises the steps: a) breakdown of emulsion process, b) coagulating treatment, c) Treatment by Photocatalysis Oxidation.
Embodiment
Concrete treatment process is as follows:
A) breakdown of emulsion process, concrete treating processes is: by 1L Cutting Liquid Wastewater, first Cutting Liquid Wastewater is put into stirred vessel, then appropriate hydrochloric acid is added in 1L Cutting Liquid Wastewater, and adjust ph is 3; Then in Cutting Liquid Wastewater, add 30ml emulsion splitter nitric acid, first stir 2min with the rotating speed of 120r/min, then stir 5min with the rotating speed of 30r/min; Finally leave standstill 2h, obtain the used cutting liquid after breakdown of emulsion process.
B) coagulating treatment, concrete treating processes is: by the used cutting liquid after the process of 1L breakdown of emulsion, first the used cutting liquid after breakdown of emulsion process is put into stirred vessel, then adds in 1L used cutting liquid by appropriate calcium hydroxide, and adjust ph is 7.5; Then in 1L used cutting liquid, add 1500mg composite flocculation agent, first stir 2min with the rotating speed of 120r/min, then stir 5min with the rotating speed of 30r/min, wherein, composite flocculation agent by bodied ferric sulfate and polyacrylamide in mass ratio 60:1 mix; Finally leave standstill 2h, obtain the used cutting liquid after coagulating treatment.
C) Treatment by Photocatalysis Oxidation, concrete treating processes is: by the used cutting liquid after 1L coagulating treatment, first used cutting liquid is put into reaction vessel, then appropriate hydrochloric acid is added in 1L Cutting Liquid Wastewater, and adjust ph is 3; Then in 1L used cutting liquid, 24mg hydrogen peroxide is added, 700mg iron vitriol, at ultraviolet light irradiation degree 50uW/cm
2uV-irradiation oxidizing reaction is carried out under condition, in reactor, 12 mg hydrogen peroxide are added after question response 1h, in reactor, 12 mg hydrogen peroxide are added after question response 2h, in reactor, 12 mg hydrogen peroxide are added after question response 3h, can oxidizing reaction be terminated after question response 7h, reach optimal light catalytic oxidation effect.Through practical measurement, this Cutting Liquid Wastewater is after breakdown of emulsion, coagulation and Treatment by Photocatalysis Oxidation, and its COD clearance can reach 99%, meets growth requirement and the environmental requirement of manufacturing enterprise completely.
Present invention is disclosed a kind for the treatment of process of Cutting Liquid Wastewater, this treatment process be simple to operate, processing cost is low, good separating effect, its COD clearance can reach 99%, has good application value.
The above; be only the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any those of ordinary skill in the art are in the technical scope disclosed by the present invention; the change can expected without creative work or replacement, all should be encompassed within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should limit with claims is as the criterion.
Claims (9)
1. a treatment process for Cutting Liquid Wastewater, is characterized in that, described treatment process comprises the steps: a) breakdown of emulsion process, b) coagulating treatment, c) Treatment by Photocatalysis Oxidation.
2. the treatment process of Cutting Liquid Wastewater according to claim 1, is characterized in that, in described step a), breakdown of emulsion process comprises the steps: 1) hydrochloric acid to be added adjust ph in Cutting Liquid Wastewater be 3; 2) emulsion splitter nitric acid is added in Cutting Liquid Wastewater and carry out breakdown of emulsion process by the demulsification technology condition of setting.
3. the treatment process of Cutting Liquid Wastewater according to claim 2, is characterized in that, described demulsification technology condition is: stirring velocity 120r/min, churning time 2min for the first time; Second time stirring velocity 30r/min, churning time 5min; Time of repose 2h.
4. the treatment process of Cutting Liquid Wastewater according to claim 1, is characterized in that, in described step b), coagulating treatment comprises the steps: 1) calcium hydroxide is added breakdown of emulsion process after used cutting liquid in adjust ph be 7.5; 2) composite flocculation agent is added in used cutting liquid and carry out coagulating treatment by the coagulation process condition of setting.
5. the treatment process of Cutting Liquid Wastewater according to claim 4, is characterized in that, described composite flocculation agent by bodied ferric sulfate and polyacrylamide in mass ratio 60:1 mix, its add-on is 1500mg/L.
6. the treatment process of Cutting Liquid Wastewater according to claim 4, is characterized in that, described coagulation process condition is: stirring velocity 120r/min, churning time 2min for the first time; Second time stirring velocity 30r/min, churning time 5min; Time of repose 2h.
7. the treatment process of Cutting Liquid Wastewater according to claim 1, is characterized in that, in described step c), Treatment by Photocatalysis Oxidation comprises the steps: 1) hydrochloric acid to be added adjust ph in the used cutting liquid after coagulating treatment be 3; 2) hydrogen peroxide, iron vitriol are added in used cutting liquid carry out Treatment by Photocatalysis Oxidation by the photochemical catalytic oxidation processing condition of setting.
8. the treatment process of Cutting Liquid Wastewater according to claim 7, is characterized in that, described hydrogen peroxide add-on is 60mg/L, and iron vitriol add-on is 700mg/L.
9. the treatment process of Cutting Liquid Wastewater according to claim 7, is characterized in that, described photochemical catalytic oxidation processing condition are: ultraviolet light irradiation degree 50uW/cm
2, ultraviolet lighting time 7h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410569606.7A CN104310644A (en) | 2014-10-23 | 2014-10-23 | Treatment method of cutting fluid wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410569606.7A CN104310644A (en) | 2014-10-23 | 2014-10-23 | Treatment method of cutting fluid wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104310644A true CN104310644A (en) | 2015-01-28 |
Family
ID=52365997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410569606.7A Pending CN104310644A (en) | 2014-10-23 | 2014-10-23 | Treatment method of cutting fluid wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104310644A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104944631A (en) * | 2015-06-03 | 2015-09-30 | 安徽新天环保科技有限公司 | Pretreatment method of high-concentration cutting fluid sewage |
| CN105439327A (en) * | 2015-12-30 | 2016-03-30 | 北京清大国华环境股份有限公司 | Method and device for demulsifying multiple mixed waste emulsions |
| CN105923861A (en) * | 2016-05-10 | 2016-09-07 | 上海电力学院 | Method for efficiently treating alkaline washing wastewater |
| CN107619141A (en) * | 2017-11-10 | 2018-01-23 | 徐州华瑞机械锻造有限公司 | A kind of processing method of used cutting liquid |
| CN108675490A (en) * | 2018-05-16 | 2018-10-19 | 孟静 | A kind of industrial wastewater catalytic reactor |
| CN108689536A (en) * | 2018-07-17 | 2018-10-23 | 苏州方舟环保科技有限公司 | A kind of emulsion low-pressure treatment device |
| CN110540341A (en) * | 2019-08-29 | 2019-12-06 | 四川拓璞环保科技有限公司 | waste cutting emulsion wastewater treatment system and method |
| CN112960838A (en) * | 2021-04-06 | 2021-06-15 | 江苏科技大学 | Reduction treatment system and treatment method for machining emulsified waste liquid |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104944631A (en) * | 2015-06-03 | 2015-09-30 | 安徽新天环保科技有限公司 | Pretreatment method of high-concentration cutting fluid sewage |
| CN105439327A (en) * | 2015-12-30 | 2016-03-30 | 北京清大国华环境股份有限公司 | Method and device for demulsifying multiple mixed waste emulsions |
| CN105923861A (en) * | 2016-05-10 | 2016-09-07 | 上海电力学院 | Method for efficiently treating alkaline washing wastewater |
| CN107619141A (en) * | 2017-11-10 | 2018-01-23 | 徐州华瑞机械锻造有限公司 | A kind of processing method of used cutting liquid |
| CN108675490A (en) * | 2018-05-16 | 2018-10-19 | 孟静 | A kind of industrial wastewater catalytic reactor |
| CN108675490B (en) * | 2018-05-16 | 2021-04-13 | 中节能环保投资发展(江西)有限公司 | Industrial wastewater catalytic reactor |
| CN108689536A (en) * | 2018-07-17 | 2018-10-23 | 苏州方舟环保科技有限公司 | A kind of emulsion low-pressure treatment device |
| CN110540341A (en) * | 2019-08-29 | 2019-12-06 | 四川拓璞环保科技有限公司 | waste cutting emulsion wastewater treatment system and method |
| CN112960838A (en) * | 2021-04-06 | 2021-06-15 | 江苏科技大学 | Reduction treatment system and treatment method for machining emulsified waste liquid |
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Application publication date: 20150128 |