CN105585218A - Machining wastewater treatment technology - Google Patents
Machining wastewater treatment technology Download PDFInfo
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- CN105585218A CN105585218A CN201610018843.3A CN201610018843A CN105585218A CN 105585218 A CN105585218 A CN 105585218A CN 201610018843 A CN201610018843 A CN 201610018843A CN 105585218 A CN105585218 A CN 105585218A
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- waste water
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- machining
- sedimentation basin
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- 238000003754 machining Methods 0.000 title claims abstract description 19
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 15
- 239000002351 wastewater Substances 0.000 claims abstract description 70
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 31
- 238000004062 sedimentation Methods 0.000 claims abstract description 25
- 239000000126 substance Substances 0.000 claims abstract description 9
- 238000000926 separation method Methods 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 239000010802 sludge Substances 0.000 claims description 20
- 230000015556 catabolic process Effects 0.000 claims description 15
- 239000000839 emulsion Substances 0.000 claims description 15
- 241001148470 aerobic bacillus Species 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- 239000001301 oxygen Substances 0.000 claims description 9
- 238000004659 sterilization and disinfection Methods 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- 239000013618 particulate matter Substances 0.000 claims description 6
- 230000001954 sterilising effect Effects 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 6
- 238000009300 dissolved air flotation Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 4
- 230000003311 flocculating effect Effects 0.000 claims description 4
- 238000011068 loading method Methods 0.000 claims description 4
- 229920002521 macromolecule Polymers 0.000 claims description 4
- 239000002244 precipitate Substances 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 238000005273 aeration Methods 0.000 claims description 3
- 238000000247 postprecipitation Methods 0.000 claims description 3
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 239000010865 sewage Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000004060 metabolic process Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 206010002660 Anoxia Diseases 0.000 description 1
- 241000976983 Anoxia Species 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000007953 anoxia Effects 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- 235000014171 carbonated beverage Nutrition 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 230000001546 nitrifying effect Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention provides a machining wastewater treatment technology. The machining wastewater treatment technology comprises steps as follows: after wastewater passes through a grid pool and large-particle substances are intercepted, the wastewater enters a demulsification pool and is subjected to demulsification for phosphorous removal, then enters an air floatation machine for air floatation separation, enters an anaerobic pool, an anoxic pool and an aerobic pool sequentially for biochemical treatment, enters a sedimentation pool for solid-liquid separation and is finally filtered, sterilized and discharged when up to the standard. The machining wastewater treatment technology adopts a simple procedure and is low in operating cost, the operation is safe and reliable, and the water quality is stable and reaches the standard.
Description
Technical field
The present invention relates to sewage treatment area, particularly a kind of machining waste water treatment process.
Background technology
Machining sewage main source is that cleaning is manufactured containing metallic wastewaters such as iron waste waters in workshop, waste water mainly comprises: outside these waste water oil removals such as washes, cleaning waste water, cleaning floor waste water, emulsifying liquid waste water, also contain multiple grease, it is acid that pH value is, COD is high, and biodegradability is poor. Water quality is more complicated, can not directly discharge. Machining water consumption is huge, and how utilizing waste water to recycle is engineering difficult point.
Summary of the invention
The object of the present invention is to provide the treatment process of the machining waste water that a kind of flow process is simple, operating cost is low, safe and reliable to operation, water stabilization is up to standard.
For achieving the above object, machining waste water treatment process of the present invention, waste water is held back after large particulate matter by grid pond, enter breakdown of emulsion pond and carry out breakdown of emulsion reaction dephosphorization, then enter air floatation machine and carry out dissolved air flotation, enter successively again anaerobic pond, anoxic pond, Aerobic Pond and carry out biochemical treatment, then enter sedimentation basin and carry out Separation of Solid and Liquid, finally by filtering, sterilize rear discharge up to standard.
Further, concrete technology step is as follows:
(1) pretreatment: waste water enters grid pond and holds back large particulate matter by grid, then from flowing into regulating reservoir with the Balance Water Quality water yield, make waste water evenly enter subsequent treatment unit;
(2) breakdown of emulsion reaction dephosphorization: waste water enters breakdown of emulsion pond, drops into CaCl in breakdown of emulsion pond2, then add PAC to carry out flocculating setting;
(3) dissolved air flotation: waste water enters air floatation machine, the suspension flco in waste water sticks on the microbubble of air floatation machine generation, climbs up on top of the water with bubble, forms scum silica frost and also scrapes removing dross;
(4) AAO technique biochemical treatment: waste water enters anaerobic pond, anoxic pond, Aerobic Pond successively, and the mud in the mixed liquor of Aerobic Pond and post precipitation pond is back to anoxic pond simultaneously, wherein anaerobic pond, the in-built flexible biologic packing material of anoxic pond, deliquescent macromolecule, hard-degraded substance in waste water are decomposed into the material of low molecule, easy degraded, improve the ratio of BOD/COD, strengthen biodegradability; Then waste water carries out Aerobic Process for Treatment from flowing into Aerobic Pond, and the elastic biological filler adheres of installing in Aerobic Pond has aerobic bacteria, by aerobic bacteria and the extraneous oxygen providing, the organic substance in waste water is processed;
(5) Separation of Solid and Liquid: waste water is from flowing in sedimentation basin, and the solid impurity that biochemical treatment causes can flow out with waste water, and sedimentation basin carries out sedimentation processing to solid impurity; Meanwhile, the activated sludge that biochemical treatment produces carries out precipitate and separate with waste water in sedimentation basin, and most of activated sludge is back to anoxic pond, and excess sludge is discharged to sludge concentration tank and carries out concentration;
(6) filter: waste water, from flowing into intermediate pool, is delivered to pressure filter by water pump by waste water and filtered;
(7) sterilization water storage: carry out disinfection in sterilization pool through the waste water filtering, final qualified discharge water storage.
Described anaerobic pond, effective time of staying of anoxic pond are 10～12 hours.
The elastic biological filler space network that for the benefit of aerobic bacteria adheres in described Aerobic Pond.
The required oxygen providing of described Aerobic Pond adopts air blast waste water to be carried out to the mode of aeration aerating, makes the dissolved oxygen in Aerobic Pond remain on 2.0mg/L.
Described sedimentation basin is vertical-flow tube settler, and sedimentation basin surface loading is 1.0m3/m2.h, hydraulic detention time is 4.5h.
Substantive distinguishing features of the present invention and progress are:
The beneficial effect of the application's machining waste water treatment process is:
(1) first adopt breakdown of emulsion reaction dephosphorization, then take air floatation machine to remove the suspension in waste water, effectively purify water.
(2) adopt the biochemical treatment of AAO technique, 1. make flow process simple, structures are few, greatly saved capital cost, and operating cost is low, and floor space is little; 2. taking the carbonaceous organic material in raw wastewater and endogenous metabolism product as carbon source, saved the expense that adds outer carbon source, and obtained the C/N ratio improving, to guarantee fully carrying out of denitrification; 3. anoxic pond is before Aerobic Pond, because denitrification has consumed a part of organic matter in waste water, so both alleviated the organic loading of Aerobic Pond, the settling property that can improve again activated sludge is beneficial to control sludge bulking, and the basicity that denitrification process produces can compensate the consumption of nitrifying process to basicity.
(3) automaticity is high, and effluent characteristics is stable.
Brief description of the drawings
Fig. 1 is process flow diagram of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described further.
Machining waste water treatment process of the present invention, concrete technology step is as follows:
(1) pretreatment: waste water enters grid pond and holds back large particulate matter by grid, avoids large particulate matter to enter sewage disposal system and results in blockage. From flowing into regulating reservoir with the Balance Water Quality water yield, make waste water evenly enter subsequent treatment unit again.
Arrange by regulating reservoir, fully Balance Water Quality, the water yield, make sewage can more evenly enter subsequent treatment unit, and the shock resistance that improves whole system reduces the design scale of processing unit. Be conducive to reduce the impact that operating cost and variation water quality bring. Consider that machining waste water coefficient of variation is larger, regulating reservoir design hydraulic detention time 24 hours.
(2) breakdown of emulsion reaction dephosphorization: waste water enters breakdown of emulsion pond, drops into CaCl in breakdown of emulsion pond2, then add PAC to carry out flocculating setting.
Because of mechanic factory workers, there are a lot of negative activating agents on surface, has a large amount of phosphorus reagents, and waste water must first carry out breakdown of emulsion reaction. CaCl2Generate calcium phosphate, not soluble in water, add PAC to carry out removing phosphorus after biochemical flocculating setting.
(3) dissolved air flotation: waste water enters air floatation machine, the suspension flco in waste water sticks on the microbubble of air floatation machine generation, climbs up on top of the water with bubble, forms scum silica frost and also scrapes removing dross.
Air floatation machine is to utilize air and water under the pressure condition of-Ding, gas is dissolved in water greatly, make every effort in saturation state, then molten formed pressure carbonated drink is discharged by decompression, produce a large amount of micro air bubbles, fully contact with the suspension flco in waste water, the flco that makes to suspend sticks on micro air bubble, climb up on top of the water with bubble, form scum silica frost, scrape removing dross and can reach the object purifying water.
(4) AAO technique biochemical treatment: waste water enters anaerobic pond, anoxic pond, Aerobic Pond successively, and the mud in the mixed liquor of Aerobic Pond and post precipitation pond is back to anoxic pond simultaneously, wherein anaerobic pond, the in-built flexible biologic packing material of anoxic pond, deliquescent macromolecule, hard-degraded substance in waste water are decomposed into the material of low molecule, easy degraded, the ratio that has improved BOD/COD, has strengthened biodegradability; Then waste water carries out Aerobic Process for Treatment from flowing into Aerobic Pond, and the elastic biological filler adheres of installing in Aerobic Pond has aerobic bacteria, by aerobic bacteria and the extraneous oxygen providing, the organic substance in waste water is processed.
AAO technique is a kind of Prepositive denitrification technique, belong to single-stage sludge denitrification technique, only have a sludge reflux system and mixed-liquor return system, the microorganism species of mixed liquor alternately, under aerobic and anoxia condition, will be brought into play respectively its different effect in the time that organic concentration is high or low. Its technological process is the advanced anoxic pond of waste water, then enters Aerobic Pond, and the mud of the mixed liquor of Aerobic Pond and sedimentation basin is back to anoxic pond simultaneously.
Anaerobic pond, the in-built flexible biologic packing material of anoxic pond, it act as the material that deliquescent macromolecule, hard-degraded substance in waste water is decomposed into low molecule, easy degraded, thereby improve the ratio of BOD/COD, strengthen biodegradability, for follow-up Aerobic Process for Treatment provides condition, anaerobic pond, effective time of staying of anoxic pond are 10～12 hours, COD clearance approximately 30～60%. Waste water carries out Aerobic Process for Treatment from flowing into Aerobic Pond. The in-built flexible biologic packing material of Aerobic Pond, this elastic biological filler space network that for the benefit of aerobic bacteria adheres to, there is good gas distribution distribution performance, greatly improve the treatment effect of Aerobic Pond, its network structure can make aerobic bacteria be easy to adhere to, and after biofilm, by aerobic bacteria, the organic substance in water is processed, and the extraneous material that will provide is oxygen, the present invention adopts air blast to carry out aeration aerating to waste water, makes contact-oxidation pool dissolved oxygen remain on the level of 2.0mg/L. COD and BOD are removed more than 80%.
(5) Separation of Solid and Liquid: waste water is from flowing in sedimentation basin, and the solid impurity that biochemical treatment causes can flow out with waste water, and sedimentation basin carries out sedimentation processing to solid impurity; Meanwhile, the activated sludge that biochemical treatment produces carries out precipitate and separate with waste water in sedimentation basin, and most of activated sludge is back to anoxic pond, and excess sludge is discharged to sludge concentration tank and carries out concentration.
Sedimentation basin adopts vertical-flow tube settler, and sedimentation basin surface loading is 1.0m3/m2.h, hydraulic detention time is 4.5h. The microorganism of Aerobic Pond also has a metabolic process, and the biomembrane of aging death can come off and drift out with water, and sedimentation basin carries out sedimentation processing to the biomembrane coming off. Meanwhile, sedimentation basin makes activated sludge and waste water carry out precipitate and separate, and wherein most of activated sludge is back to anoxic pond, and excess sludge is discharged to sludge concentration tank and carries out concentration.
(6) filter: waste water, from flowing into intermediate pool, is delivered to pressure filter by water pump by waste water and filtered.
(7) sterilization water storage: carry out disinfection in sterilization tank through the waste water filtering, final qualified discharge water storage.
Claims (6)
1. a machining waste water treatment process, it is characterized in that, waste water is held back after large particulate matter by grid pond, enter breakdown of emulsion pond and carry out breakdown of emulsion reaction dephosphorization, then enter air floatation machine and carry out dissolved air flotation, enter successively again anaerobic pond, anoxic pond, Aerobic Pond and carry out biochemical treatment, then enter sedimentation basin and carry out Separation of Solid and Liquid, finally by filtering, sterilize rear discharge up to standard.
2. machining waste water treatment process according to claim 1, is characterized in that, concrete technology step is as follows:
(1) pretreatment: waste water enters grid pond and holds back large particulate matter by grid, then from flowing into regulating reservoir with the Balance Water Quality water yield, make waste water evenly enter subsequent treatment unit;
(2) breakdown of emulsion reaction dephosphorization: waste water enters breakdown of emulsion pond, drops into CaCl in breakdown of emulsion pond2, then add PAC to carry out flocculating setting;
(3) dissolved air flotation: waste water enters air floatation machine, the suspension flco in waste water sticks on the microbubble of air floatation machine generation, climbs up on top of the water with bubble, forms scum silica frost and also scrapes removing dross;
(4) AAO technique biochemical treatment: waste water enters anaerobic pond, anoxic pond, Aerobic Pond successively, and the mud in the mixed liquor of Aerobic Pond and post precipitation pond is back to anoxic pond simultaneously, wherein anaerobic pond, the in-built flexible biologic packing material of anoxic pond, deliquescent macromolecule, hard-degraded substance in waste water are decomposed into the material of low molecule, easy degraded, improve the ratio of BOD/COD, strengthen biodegradability; Then waste water carries out Aerobic Process for Treatment from flowing into Aerobic Pond, and the elastic biological filler adheres of installing in Aerobic Pond has aerobic bacteria, by aerobic bacteria and the extraneous oxygen providing, the organic substance in waste water is processed;
(5) Separation of Solid and Liquid: waste water is from flowing in sedimentation basin, and the solid impurity that biochemical treatment causes can flow out with waste water, and sedimentation basin carries out sedimentation processing to solid impurity; Meanwhile, the activated sludge that biochemical treatment produces carries out precipitate and separate with waste water in sedimentation basin, and most of activated sludge is back to anoxic pond, and excess sludge is discharged to sludge concentration tank and carries out concentration;
(6) filter: waste water, from flowing into intermediate pool, is delivered to pressure filter by water pump by waste water and filtered;
(7) sterilization water storage: carry out disinfection in sterilization pool through the waste water filtering, final qualified discharge water storage.
3. machining waste water treatment process according to claim 2, is characterized in that: described anaerobic pond, effective time of staying of anoxic pond are 10～12 hours.
4. machining waste water treatment process according to claim 2, is characterized in that: the elastic biological filler space network that for the benefit of aerobic bacteria adheres in described Aerobic Pond.
5. machining waste water treatment process according to claim 2, is characterized in that: the required oxygen providing of described Aerobic Pond adopts air blast waste water to be carried out to the mode of aeration aerating, makes the dissolved oxygen in Aerobic Pond remain on 2.0mg/L.
6. machining waste water treatment process according to claim 2, is characterized in that: described sedimentation basin is vertical-flow tube settler, and sedimentation basin surface loading is 1.0m3/m2.h, hydraulic detention time is 4.5h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610018843.3A CN105585218B (en) | 2016-01-13 | 2016-01-13 | Wastewater from mechanical industry treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610018843.3A CN105585218B (en) | 2016-01-13 | 2016-01-13 | Wastewater from mechanical industry treatment process |
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| Publication Number | Publication Date |
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| CN105585218A true CN105585218A (en) | 2016-05-18 |
| CN105585218B CN105585218B (en) | 2018-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610018843.3A Active CN105585218B (en) | 2016-01-13 | 2016-01-13 | Wastewater from mechanical industry treatment process |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106007208A (en) * | 2016-07-04 | 2016-10-12 | 衢州市晟煜化工有限公司 | Chemical wastewater purification treatment method |
| CN106186580A (en) * | 2016-08-31 | 2016-12-07 | 武汉东川自来水科技开发有限公司 | A kind of emulsion sewage disposal system and processing method |
| CN106587497A (en) * | 2016-12-07 | 2017-04-26 | 河池市技术开发中心 | Machining wastewater treatment system |
| CN107032564A (en) * | 2017-06-21 | 2017-08-11 | 孙东光 | A kind of fecal treatment equipment and method |
| CN107585972A (en) * | 2017-10-27 | 2018-01-16 | 山东三星玉米产业科技有限公司 | Grease processing waste water handling process and device |
| RU187325U1 (en) * | 2018-06-19 | 2019-03-01 | Общество с ограниченной ответственностью "ИНФРАЭКОПРОЕКТ" | SEWAGE TREATMENT DEVICE |
| CN109437494A (en) * | 2018-12-26 | 2019-03-08 | 苏州苏沃特环境科技有限公司 | A kind of processing unit and method of water-jet loom sewage |
| CN110759584A (en) * | 2019-10-10 | 2020-02-07 | 天津中冀源环保科技有限公司 | Emulsion wastewater treatment process |
| CN111559827A (en) * | 2020-04-23 | 2020-08-21 | 泰兴瑞深新材科技有限公司 | Biological treatment method of desulfurization and denitrification tail liquid |
| CN112607975A (en) * | 2020-12-25 | 2021-04-06 | 苏州市环境保护有限公司 | Comprehensive treatment method of cutting fluid wastewater |
| CN113788584A (en) * | 2021-09-24 | 2021-12-14 | 惠州市吉邦精密技术有限公司 | Machining wastewater treatment method and industrial wastewater purification method |
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