CN108545886A - A kind of method of cutting fluid processing - Google Patents
A kind of method of cutting fluid processing Download PDFInfo
- Publication number
- CN108545886A CN108545886A CN201810352926.5A CN201810352926A CN108545886A CN 108545886 A CN108545886 A CN 108545886A CN 201810352926 A CN201810352926 A CN 201810352926A CN 108545886 A CN108545886 A CN 108545886A
- Authority
- CN
- China
- Prior art keywords
- uasb
- air supporting
- carried out
- fluid processing
- ceramic membrane
- 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
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
- C02F1/44—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
- C02F1/52—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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic 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
- C02F2103/16—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
- C02F2301/08—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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
-
- 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
- C02F3/28—Anaerobic digestion processes
- C02F3/2846—Anaerobic digestion processes using upflow anaerobic sludge blanket [UASB] reactors
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)
Abstract
The invention discloses a kind of methods of cutting fluid processing, include the following steps:Demulsifier is added first, and after carrying out demulsification processing, dosing coagulant, flocculant remove oil emulsion then into flotation tank by air supporting;After air supporting oil removal, it is filtered using planar ceramic membrane;After demulsification air supporting, ceramic membrane filter pretreatment, Anaerobic Digestion is carried out into the ponds UASB;Aerobic reaction processing is carried out subsequently into contact-oxidation pool, the COD in water removal is gone by Aerobic Process for Treatment;Then mud-water separation is carried out by sedimentation basin, the suspended matter in water removal is gone to remove remaining COD, it is ensured that emission compliance finally by two-stage aerated biological filter.The present invention is filtered using planar ceramic membrane, using two-stage aerated biological filter, remaining COD can be effectively removed, it is ensured that emission compliance, solves the problem of cutting waste fluid processing cost is high, and discarding or " arranging steathily " cause significant impact to the environment that we live with safety.
Description
Technical field
The present invention relates to technical field of mechanical processing, specially a kind of method of cutting fluid processing.
Background technology
Cutting fluid is that one kind is used in metal cutting, mill process, for cooling down and lubricating the work of cutter and workpiece
Industry liquid, cutting fluid from a variety of super strong functional auxiliary agents it is compound through science with form, be provided simultaneously with good cooling performance, profit
Slip energy, rustless property, oil removing cleaning function, anti-corrosion function, easily dilutable feature.It is easy to overcome traditional tradition soap base emulsion summer
The difficult dilution of smelly, winter, rust-proof effect difference defect, also have no adverse effects to lathe paint, the cutting suitable for ferrous metal and mill
Processing belongs to current most leading abrasive product.Cutting fluid all indicators are better than saponified oil, it have good cooling, cleaning,
The features such as antirust, and have it is nontoxic, tasteless, non-corrosive to human body, to equipment burn into does not pollute environment the features such as.
Widely applied emulsion cutting fluid is a kind of raising machining effect and uses in contemporary metal process
Industrial liquid, using process when, emulsion cutting fluid occurs different degrees of decomposition and goes bad, and leads to reduced performance, because
This will produce a large amount of used cutting liquids, and used cutting liquid waste emulsified mixture is in addition to the harm with general oily waste water, surfactant
Itself is also harmful to biology, and the noxious material that also some can be made not soluble in water is dissolved, and is needed to handle and is reached local code
It can be just discharged after wastewater treatment standard, but cutting waste fluid processing cost is high, faces the treatment cost of waste liquor of great number, it is numerous
Enterprise can't bear the heavy load, and fraction enterprise even makes a desperate move, and abandons or " arranging steathily ", the environment and safety live to us cause weight
Big influence, for this purpose, it is proposed that a kind of method of cutting fluid processing.
Invention content
The purpose of the present invention is to provide a kind of methods of cutting fluid processing, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the present invention provides the following technical solutions:A kind of method of cutting fluid processing, including walk as follows
Suddenly:Demulsifier is added first, and after carrying out demulsification processing, dosing coagulant, flocculant pass through air supporting then into flotation tank
Remove oil emulsion;After air supporting oil removal, it is filtered using planar ceramic membrane;By the air supporting that is demulsified, ceramic membrane filter pretreatment
Afterwards, Anaerobic Digestion is carried out into the ponds UASB;Aerobic reaction processing is carried out subsequently into contact-oxidation pool, passes through Aerobic Process for Treatment
Remove the COD in water removal;Then mud-water separation is carried out by sedimentation basin, removes the suspended matter in water removal, is given birth to finally by two-stage aeration
Object filter tank removes remaining COD, it is ensured that emission compliance.
Preferably, the biochemical system for anaerobic treatment uses the ponds UASB, and the ponds UASB are by inhalant region, Sludge Bed area, three-phase separate
It is formed from area, catchment, UASB handles high concentrated organic wastewater, improves the biodegradability of waste water.
Preferably, the aerobic reaction has between activated sludge process and the biological treatment of biofilter between the two
The biofilm of activated sludge process feature.
Preferably, the ceramic membrane is by Al2O3、ZrO2And TiO2Etc. porous membrane made of inorganic material material.
Compared with prior art, the beneficial effects of the invention are as follows:The present invention is filtered using planar ceramic membrane, ceramics
Film is by Al2O3、ZrO2And TiO2Etc. inorganic material material prepare porous membrane, have the irreplaceable many advantages of organic film:
Chemical stability is good;Acidproof, alkaline-resisting, organic solvent-resistant;Rigidity and mechanical strength are good;It can back flush;Antimicrobial erosion, no
It has an effect with microorganism;Anti- chemical agent corrodes;Heat resistant and wear resistant damages;Pore-size distribution is narrow, and fenestra is indeformable;Filtering accuracy
It is high;Contamination resistance is strong;Additional or pretreating process is few;Simplicity easy to operate is cleaned, film regenerability is good;UF membrane efficiency
The features such as height, good hydrophilic property, saving energy consumption, has organic loading height, floor space by using two-stage aerated biological filter
Small, small investment not will produce sludge bulking, the advantages that oxygen efficiency of transmission is high, effluent quality is good, can effectively remove remaining
COD, it is ensured that emission compliance solves that cutting waste fluid processing cost is high, abandons or environment and peace that " arranging steathily " lives to us
Full the problem of causing significant impact.
Specific implementation mode
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
The every other embodiment that art personnel are obtained without making creative work belongs to the model that the present invention protects
It encloses.
The present invention provides a kind of technical solution:A kind of method of cutting fluid processing, includes the following steps:Demulsification is added first
Agent, after carrying out demulsification processing, dosing coagulant, flocculant remove oil emulsion then into flotation tank by air supporting;Air supporting
After oil removal, it is filtered using planar ceramic membrane;By demulsification air supporting, ceramic membrane filter pretreatment after, into the ponds UASB into
Row Anaerobic Digestion;Aerobic reaction processing is carried out subsequently into contact-oxidation pool, the COD in water removal is gone by Aerobic Process for Treatment;
Then mud-water separation is carried out by sedimentation basin, removes the suspended matter in water removal, finally by two-stage aerated biological filter, removal residual
COD, it is ensured that emission compliance.
Embodiment one:
Demulsifier is added first, and after carrying out demulsification processing, dosing coagulant, flocculant pass through air supporting then into flotation tank
Remove oil emulsion;After air supporting oil removal, it is filtered using planar ceramic membrane;By the air supporting that is demulsified, ceramic membrane filter pretreatment
Afterwards, Anaerobic Digestion is carried out into the ponds UASB;Aerobic reaction processing is carried out subsequently into contact-oxidation pool, passes through Aerobic Process for Treatment
Remove the COD in water removal;Then mud-water separation is carried out by sedimentation basin, removes the suspended matter in water removal, is given birth to finally by two-stage aeration
Object filter tank removes remaining COD, it is ensured that emission compliance.
Embodiment two:
In embodiment one, following processes are added:
Biochemical system for anaerobic treatment uses the ponds UASB, the ponds UASB to be made of inhalant region, Sludge Bed area, three-phase separation area, catchment,
UASB handles high concentrated organic wastewater, improves the biodegradability of waste water.
Demulsifier is added first, and after carrying out demulsification processing, dosing coagulant, flocculant pass through then into flotation tank
Air supporting removes oil emulsion;After air supporting oil removal, it is filtered using planar ceramic membrane;It is pre- by the air supporting that is demulsified, ceramic membrane filter
After processing, Anaerobic Digestion is carried out into the ponds UASB, mesophytization system for anaerobic treatment uses the ponds UASB, and the ponds UASB are by intaking
Area, Sludge Bed area, three-phase separation area, catchment composition, UASB handle high concentrated organic wastewater, improve the biodegradability of waste water;
Aerobic reaction processing is carried out subsequently into contact-oxidation pool, the COD in water removal is gone by Aerobic Process for Treatment;Then by sedimentation basin into
Row mud-water separation goes the suspended matter in water removal to remove remaining COD finally by two-stage aerated biological filter, it is ensured that discharge reaches
Mark.
Embodiment three:
In embodiment two, following processes are added:
Aerobic reaction between activated sludge process and the biological treatment of biofilter between the two, active sludge feature
Biofilm.
Demulsifier is added first, and after carrying out demulsification processing, dosing coagulant, flocculant pass through then into flotation tank
Air supporting removes oil emulsion;After air supporting oil removal, it is filtered using planar ceramic membrane;It is pre- by the air supporting that is demulsified, ceramic membrane filter
After processing, Anaerobic Digestion is carried out into the ponds UASB, mesophytization system for anaerobic treatment uses the ponds UASB, and the ponds UASB are by intaking
Area, Sludge Bed area, three-phase separation area, catchment composition, UASB handle high concentrated organic wastewater, improve the biodegradability of waste water;
Subsequently into contact-oxidation pool carry out aerobic reaction processing, by Aerobic Process for Treatment go water removal in COD, wherein aerobic reaction between
Activated sludge process and the biological treatment of biofilter between the two, the biofilm of active sludge feature;Then lead to
It crosses sedimentation basin and carries out mud-water separation, the suspended matter in water removal is gone to remove remaining COD finally by two-stage aerated biological filter,
Ensure emission compliance.
Example IV:
In embodiment three, following processes are added:
Ceramic membrane is by Al2O3、ZrO2And TiO2Etc. porous membrane made of inorganic material material.
Demulsifier is added first, and after carrying out demulsification processing, dosing coagulant, flocculant pass through then into flotation tank
Air supporting removes oil emulsion;It after air supporting oil removal, is filtered using planar ceramic membrane, wherein ceramic membrane is by Al2O3、ZrO2With
TiO2Etc. porous membrane made of inorganic material material;After demulsification air supporting, ceramic membrane filter pretreatment, carried out into the ponds UASB
Anaerobic Digestion, mesophytization system for anaerobic treatment use the ponds UASB, and the ponds UASB are by inhalant region, Sludge Bed area, three phase separation
Area, catchment composition, UASB handle high concentrated organic wastewater, improve the biodegradability of waste water;Subsequently into contact-oxidation pool into
It acts charitably oxygen reaction treatment, the COD in water removal is gone by Aerobic Process for Treatment, wherein aerobic reaction is between activated sludge process and biofilter
Biological treatment between the two, the biofilm of active sludge feature;Then mud-water separation is carried out by sedimentation basin,
The suspended matter in water removal is gone to remove remaining COD, it is ensured that emission compliance finally by two-stage aerated biological filter.
The present invention is filtered using planar ceramic membrane, and ceramic membrane is by Al2O3、ZrO2And TiO2Etc. inorganic material material
The porous membrane of preparation has the irreplaceable many advantages of organic film:Chemical stability is good;It is acidproof, alkaline-resisting, resistance to organic molten
Agent;Rigidity and mechanical strength are good;It can back flush;Antimicrobial erosion, does not have an effect with microorganism;Anti- chemical agent is invaded
Erosion;Heat resistant and wear resistant damages;Pore-size distribution is narrow, and fenestra is indeformable;Filtering accuracy is high;Contamination resistance is strong;Additional or pretreatment work
Skill is few;Simplicity easy to operate is cleaned, film regenerability is good;The features such as UF membrane is efficient, good hydrophilic property, saving energy consumption, passes through
Using two-stage aerated biological filter, there is small organic loading height, floor space, small investment, not will produce sludge bulking, oxygen transmission
Efficient, the advantages that effluent quality is good, remaining COD can be effectively removed, it is ensured that emission compliance solves cutting waste fluid processing
The problem of high cost, discarding or " arranging steathily " cause significant impact to the environment that we live with safety.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of method of cutting fluid processing, it is characterised in that:Include the following steps:Demulsifier is added first, is carried out at demulsification
After reason, dosing coagulant, flocculant remove oil emulsion then into flotation tank by air supporting;After air supporting oil removal, using flat
Plate type ceramic film is filtered;After demulsification air supporting, ceramic membrane filter pretreatment, carried out at anaerobic digestion into the ponds UASB
Reason;Aerobic reaction processing is carried out subsequently into contact-oxidation pool, the COD in water removal is gone by Aerobic Process for Treatment;Then pass through precipitation
Pond carries out mud-water separation, and the suspended matter in water removal is gone to remove remaining COD finally by two-stage aerated biological filter, it is ensured that row
Unconventional and unrestrained mark.
2. a kind of method of cutting fluid processing according to claim 1, it is characterised in that:The biochemistry system for anaerobic treatment
Using the ponds UASB, the ponds UASB are made of inhalant region, Sludge Bed area, three-phase separation area, catchment, and UASB handles high concentration organic waste
Water improves the biodegradability of waste water.
3. a kind of method of cutting fluid processing according to claim 1, it is characterised in that:The aerobic reaction is between activity
Sludge and the biological treatment of biofilter between the two, the biofilm of active sludge feature.
4. a kind of method of cutting fluid processing according to claim 1, it is characterised in that:The ceramic membrane is by Al2O3、
ZrO2And TiO2Etc. porous membrane made of inorganic material material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810352926.5A CN108545886A (en) | 2018-04-19 | 2018-04-19 | A kind of method of cutting fluid processing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810352926.5A CN108545886A (en) | 2018-04-19 | 2018-04-19 | A kind of method of cutting fluid processing |
Publications (1)
Publication Number | Publication Date |
---|---|
CN108545886A true CN108545886A (en) | 2018-09-18 |
Family
ID=63515547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810352926.5A Pending CN108545886A (en) | 2018-04-19 | 2018-04-19 | A kind of method of cutting fluid processing |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN108545886A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109534581A (en) * | 2018-12-30 | 2019-03-29 | 南京霄祥工程技术有限公司 | A kind of Zero-discharge treating process of Cutting Liquid Wastewater |
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 |
CN111302573A (en) * | 2020-04-16 | 2020-06-19 | 清有生态科技(上海)有限公司 | Tank-making wastewater treatment method |
CN113501624A (en) * | 2021-07-28 | 2021-10-15 | 重庆鑫盾机电(集团)有限公司 | Treatment process of emulsion-containing wastewater |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5275732A (en) * | 1990-07-03 | 1994-01-04 | International Environmental Systems, Inc., Usa | Combined coarse and fine bubble separation system |
EP1533276A2 (en) * | 1998-09-11 | 2005-05-25 | Fuji Jukogyo Kabushiki Kaisha | A waste water clarification system |
CN104129883A (en) * | 2014-03-07 | 2014-11-05 | 上海雅沁环保设备有限公司 | Method and equipment for treatment of high concentration machining waste liquid by ceramic membrane |
CN104817233A (en) * | 2015-04-23 | 2015-08-05 | 常州大学 | Mechanical cutting wastewater treatment device and method |
WO2016093686A1 (en) * | 2014-12-09 | 2016-06-16 | Instituto Superior Autónomo De Occidente A.C. | Method and system for the treatment of waste effluents contaminated by metals |
CN107473532A (en) * | 2017-10-02 | 2017-12-15 | 毛强平 | A kind of processing method and processing device of emulsifying liquid waste water |
-
2018
- 2018-04-19 CN CN201810352926.5A patent/CN108545886A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5275732A (en) * | 1990-07-03 | 1994-01-04 | International Environmental Systems, Inc., Usa | Combined coarse and fine bubble separation system |
EP1533276A2 (en) * | 1998-09-11 | 2005-05-25 | Fuji Jukogyo Kabushiki Kaisha | A waste water clarification system |
CN104129883A (en) * | 2014-03-07 | 2014-11-05 | 上海雅沁环保设备有限公司 | Method and equipment for treatment of high concentration machining waste liquid by ceramic membrane |
WO2016093686A1 (en) * | 2014-12-09 | 2016-06-16 | Instituto Superior Autónomo De Occidente A.C. | Method and system for the treatment of waste effluents contaminated by metals |
CN104817233A (en) * | 2015-04-23 | 2015-08-05 | 常州大学 | Mechanical cutting wastewater treatment device and method |
CN107473532A (en) * | 2017-10-02 | 2017-12-15 | 毛强平 | A kind of processing method and processing device of emulsifying liquid waste water |
Non-Patent Citations (1)
Title |
---|
王凯军等: "《城市污水生物处理新技术开发与应用》", 31 October 2001, 化学工业出版社 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109534581A (en) * | 2018-12-30 | 2019-03-29 | 南京霄祥工程技术有限公司 | A kind of Zero-discharge treating process of Cutting Liquid Wastewater |
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 |
CN111302573A (en) * | 2020-04-16 | 2020-06-19 | 清有生态科技(上海)有限公司 | Tank-making wastewater treatment method |
CN113501624A (en) * | 2021-07-28 | 2021-10-15 | 重庆鑫盾机电(集团)有限公司 | Treatment process of emulsion-containing wastewater |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN108545886A (en) | A kind of method of cutting fluid processing | |
Lin et al. | Membrane bioreactors for industrial wastewater treatment: a critical review | |
CN101311127B (en) | Method and device for treating a great variety of waste emulsion of high concentration using hyperfiltration membrane method | |
CN202576160U (en) | Municipal sewage treatment and regeneration recycling device | |
CN101456647A (en) | Automobile manufacturer wastewater treatment method | |
CN103523971B (en) | Combined treatment method and combined treatment system for offshore platform domestic sewage | |
CN104261617A (en) | Treatment method of waste emulsion | |
CN102642961A (en) | Reuse treatment method for industrial wastewater from refrigerator compressor factory | |
CN102107988A (en) | Phenol-amine wastewater treatment and recycling method and device | |
CN105417839B (en) | A kind of processing system and method for pre-electroplating treatment waste water | |
CN117186979A (en) | Cutting fluid waste liquid emission-free regenerated environment-friendly treatment additive and treatment method | |
CN101096279A (en) | Multifunctional critical multiple catalyzing electrolysis set equipment | |
CN105906153A (en) | Waste cutting fluid treatment process | |
CN112225385A (en) | Treatment and recycling system and treatment and recycling method for cleaning wastewater of finished products and/or raw materials of automobile parts | |
CN203360192U (en) | Treatment device for difficultly degradable industrial wastewater | |
CN208684701U (en) | A kind of indegradable industrial effluent biochemical treatment system | |
CN105293787B (en) | A kind of cold rolling alkalescence waste discharge advanced treatment recycling technique system and method | |
Lorena et al. | Comparative study between activated sludge versus membrane bioreactor for textile wastewater | |
CN104056555B (en) | Doughnut cleaning agents of membrane and its preparation method and application | |
CN101108763A (en) | Advanced process method for petrifaction sewage | |
CN210457852U (en) | Automobile parts finished product and/or raw and other materials wash waste water treatment recycling system | |
CN211419907U (en) | Automobile parts finished product and/or raw and other materials wash waste water treatment recycling system | |
CN208717062U (en) | A kind of processing system of wheel hub production waste water | |
CN112225386A (en) | Treatment and recycling system and treatment and recycling method for cleaning wastewater of finished products and/or raw materials of automobile parts | |
CN207792992U (en) | Chrome waste liquid biofilm treatment apparatus in a kind of fur manufacturing |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180918 |
|
RJ01 | Rejection of invention patent application after publication |