CN106007239A - Standard meeting treatment system for tannery wastewater - Google Patents
Standard meeting treatment system for tannery wastewater Download PDFInfo
- Publication number
- CN106007239A CN106007239A CN201610581741.2A CN201610581741A CN106007239A CN 106007239 A CN106007239 A CN 106007239A CN 201610581741 A CN201610581741 A CN 201610581741A CN 106007239 A CN106007239 A CN 106007239A
- Authority
- CN
- China
- Prior art keywords
- tank
- sedimentation tank
- waste water
- sludge
- preliminary sedimentation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 47
- 238000004062 sedimentation Methods 0.000 claims abstract description 38
- 239000010802 sludge Substances 0.000 claims abstract description 31
- 230000020477 pH reduction Effects 0.000 claims abstract description 26
- 230000001105 regulatory effect Effects 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 9
- 231100000719 pollutant Toxicity 0.000 claims abstract description 9
- 150000003384 small molecules Chemical class 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 230000007062 hydrolysis Effects 0.000 claims description 22
- 238000006460 hydrolysis reaction Methods 0.000 claims description 22
- 239000010985 leather Substances 0.000 claims description 22
- 239000000356 contaminant Substances 0.000 claims description 6
- 239000013618 particulate matter Substances 0.000 claims description 6
- 238000010992 reflux Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 230000018044 dehydration Effects 0.000 claims description 4
- 238000006297 dehydration reaction Methods 0.000 claims description 4
- 230000015556 catabolic process Effects 0.000 claims description 3
- 238000006731 degradation reaction Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 229920002521 macromolecule Polymers 0.000 claims description 3
- 239000012065 filter cake Substances 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 230000005484 gravity Effects 0.000 claims description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 238000005189 flocculation Methods 0.000 abstract description 2
- 230000016615 flocculation Effects 0.000 abstract description 2
- 230000003301 hydrolyzing effect Effects 0.000 abstract 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- 229920002401 polyacrylamide Polymers 0.000 abstract 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 1
- 238000006386 neutralization reaction Methods 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 229910052698 phosphorus Inorganic materials 0.000 abstract 1
- 239000011574 phosphorus Substances 0.000 abstract 1
- 239000010865 sewage Substances 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000009388 chemical precipitation Methods 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- 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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/22—Nature of the water, waste water, sewage or sludge to be treated from the processing of animals, e.g. poultry, fish, or parts thereof
- C02F2103/24—Nature of the water, waste water, sewage or sludge to be treated from the processing of animals, e.g. poultry, fish, or parts thereof from tanneries
-
- 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)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a standard meeting treatment system for tannery wastewater. The standard meeting treatment system comprises a preliminary sedimentation tank, a regulating tank, a reaction tank, a primary sedimentation tank, a hydrolytic acidification tank, an A2/O4 aerobic tank and a secondary sedimentation tank which are sequentially connected with one another by pipelines. Neutralization and flocculation treatment is carried out on the tannery wastewater by the preliminary sedimentation tank, the quality and the volume of the wastewater are regulated by the regulating tank, PAC (polyaluminum chloride) and PAM (polyacrylamide) are fed by the reaction tank to flocculate organic matters into the wastewater to generate particulate matters, macromolecular and refractory pollutants are turned into small-molecule and easily degradable pollutants by the hydrolytic acidification tank, the organic matters, nitrogen and phosphorus are removed by the A2/O4 aerobic tank, and sludge can be separated from the wastewater by the secondary sedimentation tank. Sludge in the preliminary sedimentation tank and the primary sedimentation tank can flow into a sludge concentration tank, 20% of the sludge from the secondary sedimentation tank flows back to the hydrolytic acidification tank, 60% of the sludge from the secondary sedimentation tank flows back into the A2/O4 aerobic tank, and 20% of the sludge from the secondary sedimentation tank is discharged into the sludge concentration tank. The standard meeting treatment system for the tannery wastewater has the advantages that process routes mainly implemented by the aid of double-stage physiochemical sedimentation, the hydrolytic acidification tank and the A2/O4 aerobic tank are adopted for characteristics of the tannery wastewater, and accordingly the tannery wastewater can be discharged under standard meeting conditions.
Description
Technical field
The present invention relates to sewage disposal, particularly to a kind of leather waste water processing system up to standard.
Background technology
In the course of processing, certain industrial chemicals, acid, alkali salt, sodium sulfide, oils and fats, dyestuff etc. is added at leather, the waste liquid produced is discharged the most continuously, sometimes interval is discharged, these waste water discharged are the topmost sources of Leather-Industrial Pollution, the water quality characteristics of such waste water is the turbid ash of outward appearance, and colourity is high, and pollutant levels are high, float amount is many, possibly together with inorganic salts such as Organic substance and sulfide such as substantial amounts of protein, fat, dyestuffs.
In order to make leather waste water qualified discharge, traditional method is the mode using one-level materialization, and which causes the problems such as the volume in subsequent biochemical pond is big, floor space is big, fan delivery is big, and the present invention uses two-stage physico-chemical precipitation+hydrolysis acidification pool+A2/O4Aerobic Pond is main process route, and the sewage after processing reaches the grade III Standard in " integrated wastewater discharge standard " (GB8978-1996).
Summary of the invention
For overcoming the shortcomings and deficiencies of prior art, the present invention provides a kind of leather waste water processing system up to standard.
The technical scheme is that
A kind of leather waste water processing system up to standard, including the preliminary sedimentation tank being sequentially connected with by pipeline, regulating reservoir, reaction tank, preliminary sedimentation tank, hydrolysis acidification pool, A2/O4Aerobic Pond and second pond；The mud of described preliminary sedimentation tank and preliminary sedimentation tank separately flows into sludge concentration tank, and the mud of described second pond is through sludge pump partial reflux to A2/O4Aerobic Pond, partial reflux are to hydrolysis acidification pool, and excess sludge drains into sludge concentration tank, the mud of sludge concentration tank through concentration after turn remove sludge press filtration.
Preferably, first described leather waste water intercepts through grid from workshop and removes float bigger waste water, drift, and grid be machinery fine fack, grid water outlet oneself flow into preliminary sedimentation tank.
Preferably, preliminary sedimentation tank adds FeSO4, for removing the fibrous matter in leather waste water and solid particulate matter, preliminary sedimentation tank water outlet is from flowing into regulating water quality and the regulating reservoir of the water yield.
Preferably, being placed with elevator pump in described regulating reservoir, by waste water lifting in regulating reservoir to reaction tank, remove fibrous matter and solid particulate matter in reaction tank under added PAC and PAM effect further, preliminary sedimentation tank water outlet flows into hydrolysis acidification pool.
Preferably, described hydrolysis acidification pool makes macromolecule contaminant in waste water become small molecule contaminants, the pollutant of difficult degradation become degradable pollutant, and hydrolysis acidification pool water outlet is from flowing into A2/O4Aerobic Pond.
Preferably, described Aerobic Pond uses A2/O4Mode operate, be i.e. composed in series by two-stage AOO mode, to greatest extent organics removal, A2/O4Aerobic Pond water outlet enters second pond, secondary clarifier effluent qualified discharge.
Preferably, the mud of described second pond is back to Aerobic Pond through sludge pump 60%, 20% is back to hydrolysis acidification pool and 20% and drains into sludge concentration tank, and the mud after gravity concentration is delivered to pressure filter dehydration by screw pump again, filter cake outward transport after dehydration.
The invention have the advantage that
Leather waste water provided by the present invention processing system up to standard, for the feature of leather sewage, uses two-stage physico-chemical precipitation+hydrolysis acidification pool+A2/O4Aerobic Pond is main process route, and the sewage after processing reaches the grade III Standard in " integrated wastewater discharge standard " (GB8978-1996).
Accompanying drawing explanation
Below in conjunction with the accompanying drawings and embodiment the invention will be further described:
Fig. 1 is the structure principle chart of leather waste water of the present invention processing system up to standard.
Detailed description of the invention
As it is shown in figure 1, disclosed leather waste water processing system up to standard, including the preliminary sedimentation tank being sequentially connected with by pipeline, regulating reservoir, reaction tank, preliminary sedimentation tank, hydrolysis acidification pool, A2/O4Aerobic Pond and second pond, the mud of described preliminary sedimentation tank and preliminary sedimentation tank flows into sludge concentration tank, 20% sludge reflux of described second pond to hydrolysis acidification pool, 60% sludge reflux to A2/O4Aerobic Pond and 20% mud drain into sludge concentration tank.
Concrete, first described leather waste water intercepts through grid from workshop and removes float bigger waste water, drift, adds FeSO after grid before entering preliminary sedimentation tank4Acid medicine, neutralizes waste water, makes the pH of waste water drop to 8 from 10, simultaneously the fibrous matter in flocculation waste water and solid particulate matter, and the mud of precipitation directly removes sludge concentration tank, and clear water is from flowing into regulating reservoir.Regulating reservoir is water quality and the water yield of regulation waste water, and regulating reservoir water outlet pumps into reaction tank.
The mud of preliminary sedimentation tank precipitation directly removes sludge concentration tank, and clear water is from flowing into hydrolysis acidification pool.PAC is added in reaction tank; the pH making waste water is reduced to 7 ± 0.2 from 8; make the fibrous matter in waste water and solid particulate matter form the deposition efficiency of flco, beneficially preliminary sedimentation tank, add PAM effect simultaneously; make floc particle; the water outlet of reaction tank is from flowing into preliminary sedimentation tank, and COD is reduced to 3200mg/L, SS from 4000mg/L and is reduced to 1000mg/L from 2000mg/L; realize COD clearance be 20% and SS clearance be 50%, preliminary sedimentation tank water outlet is from flowing into hydrolysis acidification pool.
Described hydrolysis acidification pool macromolecule contaminant becomes small molecule contaminants, the pollutant of difficult degradation become degradable pollutant, COD is reduced to 1600mg/L from 3200mg/L, realizing COD clearance is 50%, pH brings up to 7.3 ± 0.2 from 7 ± 0.2, and the organic loading of hydrolysis acidification pool is 2.5 ~ 3.0kgCOD/ (m3D), hydrolysis acidification pool water outlet is from flowing into A2/O4Aerobic Pond.
Described A2/O4Aerobic Pond organics removal and denitrogenation dephosphorizing, A2/O4Aerobic Pond is to be composed in series by two-stage AOO mode, organics removal to greatest extent, and COD is reduced to below 400mg/L from 1600mg/L, it is achieved COD clearance is more than 75%, and the organic loading of Aerobic Pond is 0.8 ~ 1.0kgCOD/ (m3D), A2/O4The water outlet of Aerobic Pond carries out mud-water separation from flowing into second pond, second pond uses radical sedimentation basin, surface loading is 0.6 ~ 0.7m/h, sedimentation time is 2.5 ~ 3.5 hours, secondary clarifier effluent qualified discharge, the mud of precipitation is back to Aerobic Pond through sludge pump 60%, 20% is back to hydrolysis acidification pool and 20% and drains into sludge concentration tank, and the clear water of second pond reaches the grade III Standard in " integrated wastewater discharge standard " (GB8978-1996).
Above-described embodiment only for technology design and the feature of the present invention are described, its object is to allow person skilled in the art will appreciate that present disclosure and to implement according to this, can not limit the scope of the invention with this.All modifications done according to the spirit of main technical schemes of the present invention, all should contain within protection scope of the present invention.
Claims (7)
1. a leather waste water processing system up to standard, it is characterised in that: the preliminary sedimentation tank that includes being sequentially connected with by pipeline, regulating reservoir, reaction tank, preliminary sedimentation tank, hydrolysis acidification pool, A2/O4Aerobic Pond and second pond；The mud of described preliminary sedimentation tank and preliminary sedimentation tank separately flows into sludge concentration tank, and the mud of described second pond is through sludge pump partial reflux to A2/O4Aerobic Pond, partial reflux are to hydrolysis acidification pool, and excess sludge drains into sludge concentration tank, the mud of sludge concentration tank through concentration after turn remove sludge press filtration.
Leather waste water the most according to claim 1 processing system up to standard, it is characterised in that: first described leather waste water intercepts through grid from workshop and removes float bigger waste water, drift, and grid be machinery fine fack, grid water outlet oneself flow into preliminary sedimentation tank.
Leather waste water the most according to claim 2 processing system up to standard, it is characterised in that: in preliminary sedimentation tank, add FeSO4, for removing the fibrous matter in leather waste water and solid particulate matter, preliminary sedimentation tank water outlet is from flowing into regulating water quality and the regulating reservoir of the water yield.
Leather waste water the most according to claim 3 processing system up to standard, it is characterized in that: in described regulating reservoir, be placed with elevator pump, by waste water lifting in regulating reservoir to reaction tank, removing fibrous matter and solid particulate matter in reaction tank under added PAC and PAM effect further, preliminary sedimentation tank water outlet flows into hydrolysis acidification pool.
Leather waste water the most according to claim 4 processing system up to standard, it is characterized in that: described hydrolysis acidification pool makes macromolecule contaminant in waste water become small molecule contaminants, the pollutant of difficult degradation become degradable pollutant, hydrolysis acidification pool water outlet is from flowing into A2/O4Aerobic Pond.
Leather waste water the most according to claim 5 processing system up to standard, it is characterised in that: described Aerobic Pond uses A2/O4Mode operate, be i.e. composed in series by two-stage AOO mode, to greatest extent organics removal, A2/O4Aerobic Pond water outlet enters second pond, secondary clarifier effluent qualified discharge.
Leather waste water the most according to claim 6 processing system up to standard, it is characterized in that: the mud of described second pond is back to Aerobic Pond through sludge pump 60%, 20% is back to hydrolysis acidification pool and 20% and drains into sludge concentration tank, mud after gravity concentration is delivered to pressure filter dehydration by screw pump again, filter cake outward transport after dehydration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610581741.2A CN106007239A (en) | 2016-07-22 | 2016-07-22 | Standard meeting treatment system for tannery wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610581741.2A CN106007239A (en) | 2016-07-22 | 2016-07-22 | Standard meeting treatment system for tannery wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106007239A true CN106007239A (en) | 2016-10-12 |
Family
ID=57116911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610581741.2A Pending CN106007239A (en) | 2016-07-22 | 2016-07-22 | Standard meeting treatment system for tannery wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106007239A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368951A (en) * | 2018-12-26 | 2019-02-22 | 苏州苏沃特环境科技有限公司 | A kind of processing unit and method of blanket dyeing wastewater |
| CN114853269A (en) * | 2022-04-24 | 2022-08-05 | 西安理工大学 | Sewage treatment system and method for conveniently cleaning residues |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102120679A (en) * | 2011-03-31 | 2011-07-13 | 广东石油化工学院 | Sulfur-containing and phenol-containing wastewater treatment method and device |
| CN103224309A (en) * | 2013-04-25 | 2013-07-31 | 西华大学 | Leather waste water treatment system and treatment process |
| CN204325082U (en) * | 2014-12-04 | 2015-05-13 | 南京宏博环保实业有限公司 | A kind for the treatment of system of papermaking midcourse wastewater |
| CN204325081U (en) * | 2014-12-04 | 2015-05-13 | 南京宏博环保实业有限公司 | A kind for the treatment of system of waste water from dyestuff |
| CN104761101A (en) * | 2015-03-19 | 2015-07-08 | 杨建军 | Treatment method for synchronously removing CODCr and ammonia nitrogen from leather making wastewater |
| CN206014598U (en) * | 2016-07-22 | 2017-03-15 | 苏州苏沃特环境科技有限公司 | A kind of leather waste water processing system up to standard |
-
2016
- 2016-07-22 CN CN201610581741.2A patent/CN106007239A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102120679A (en) * | 2011-03-31 | 2011-07-13 | 广东石油化工学院 | Sulfur-containing and phenol-containing wastewater treatment method and device |
| CN103224309A (en) * | 2013-04-25 | 2013-07-31 | 西华大学 | Leather waste water treatment system and treatment process |
| CN204325082U (en) * | 2014-12-04 | 2015-05-13 | 南京宏博环保实业有限公司 | A kind for the treatment of system of papermaking midcourse wastewater |
| CN204325081U (en) * | 2014-12-04 | 2015-05-13 | 南京宏博环保实业有限公司 | A kind for the treatment of system of waste water from dyestuff |
| CN104761101A (en) * | 2015-03-19 | 2015-07-08 | 杨建军 | Treatment method for synchronously removing CODCr and ammonia nitrogen from leather making wastewater |
| CN206014598U (en) * | 2016-07-22 | 2017-03-15 | 苏州苏沃特环境科技有限公司 | A kind of leather waste water processing system up to standard |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368951A (en) * | 2018-12-26 | 2019-02-22 | 苏州苏沃特环境科技有限公司 | A kind of processing unit and method of blanket dyeing wastewater |
| CN109368951B (en) * | 2018-12-26 | 2023-12-05 | 苏州苏沃特环境科技股份有限公司 | Blanket printing and dyeing wastewater treatment device and method |
| CN114853269A (en) * | 2022-04-24 | 2022-08-05 | 西安理工大学 | Sewage treatment system and method for conveniently cleaning residues |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104803548B (en) | A kind of coking wastewater containing phenol and cyanide treatment for reuse technique of zero discharge and equipment | |
| CN102910765B (en) | Demulsifying and flocculating treatment method of machining cutting fluid sewage water | |
| CN103819049B (en) | A kind of sewage water treatment method and system | |
| CN102690018B (en) | Method for treating and recycling coal tar processing wastewater | |
| US20090272681A1 (en) | Recycle water treatment system for car wash | |
| CN106116031A (en) | A kind of efficient treatment process of slaughtering wastewater | |
| CN104556569A (en) | Method and system for treatment of oil shale distillation sewage | |
| CN104743748A (en) | High-concentration sewage treatment technology for refinery wastewater | |
| CN105271623B (en) | Municipal middle water with steel wastewater is combined and staged is back to iron and steel enterprise's system and technique | |
| CN110937761A (en) | High-efficiency treatment system and process for high-concentration oil-containing heavy metal waste liquid | |
| CN107739124B (en) | Zero-discharge treatment method for coking wastewater | |
| CN104370418A (en) | Treatment method of chemical sewage | |
| CN218454092U (en) | Treatment system for degradation-resistant oily wastewater of engine plant | |
| CN210595673U (en) | Enterprise wastewater comprehensive treatment system | |
| CN104355486B (en) | Low-consumption papermaking wastewater treatment system | |
| CN204385021U (en) | A kind of system processing waste water of heat-engine plant | |
| CN106007239A (en) | Standard meeting treatment system for tannery wastewater | |
| CN104030526B (en) | A kind of sewage treatment process based on preposition sludge dewatering | |
| CN106430798A (en) | Acidic oil wastewater treatment process | |
| CN212102447U (en) | High-efficiency treatment system for high-concentration oil-containing heavy metal waste liquid | |
| CN102229458A (en) | Emulsion-containing waste water treatment method in automobile industry | |
| CN205575867U (en) | Industrial wastewater treatment system | |
| CN206014598U (en) | A kind of leather waste water processing system up to standard | |
| CN104692563A (en) | Electroplating effluent recycling device and processing method thereof | |
| CN114560579A (en) | System and process for synchronously treating produced water and fracturing flowback fluid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |
|
| RJ01 | Rejection of invention patent application after publication |