CN205710296U - The processing system of cutting waste fluid - Google Patents
The processing system of cutting waste fluid Download PDFInfo
- Publication number
- CN205710296U CN205710296U CN201620330456.9U CN201620330456U CN205710296U CN 205710296 U CN205710296 U CN 205710296U CN 201620330456 U CN201620330456 U CN 201620330456U CN 205710296 U CN205710296 U CN 205710296U
- Authority
- CN
- China
- Prior art keywords
- reactor
- regulating reservoir
- photocatalytic oxidation
- oxidation reactor
- processing system
- 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.)
- Expired - Fee Related
Links
Landscapes
- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
This utility model discloses the processing system of a kind of cutting waste fluid, including the first regulating reservoir, pretreatment unit and MBR processing means, pretreatment unit includes photocatalytic oxidation reactor, aerator and filter, the second regulating reservoir that MBR processing means includes being sequentially connected with, anaerobic reactor, the 3rd regulating reservoir and membrane bioreactor, the second regulating reservoir is connected with filter；Photocatalytic oxidation reactor includes the first photocatalytic oxidation reactor and the second photocatalytic oxidation reactor.This utility model be provided with in passing through medium pressure mercury lamp or the first photocatalytic oxidation reactor of iodine-tungsten lamp light source and in be provided with the second photocatalytic oxidation reactor of ultraviolet light source and carry out Treatment by Photocatalysis Oxidation successively, be conducive to ring-type in waste liquid, chain Organic substance are degraded successively, improve the biodegradability of waste liquid, follow-up anaerobic fermentation is conducive to process and MBR filtration treatment, it is achieved that the energy recycling of waste liquid and the standardization discharge of pollutant.
Description
Technical field
This utility model relates to cutting waste fluid treatment technology, especially relates to the processing system of a kind of cutting waste fluid.
Background technology
Cutting fluid is coolant conventional in a kind of intermetallic composite coating and mechanical processing process and lubricant, and its composition is according to use occasion
Difference include oil, oil-water emulsion, unguentum, gel, water etc., in intermetallic composite coating or machine-building, working angles is played profit
Effects such as sliding, cool down, clean, be antirust.
Cutting fluid in use, produces a large amount of cutting waste fluid because being mixed into impurity inefficacy.This waste liquid is lived by petroleum-type, surface
Property agent, preservative etc. composition, wherein portions additive has carcinogenecity, such as unprocessed direct discharge then serious environment pollution also
It is detrimental to health, it is necessary to discharge after process.
Domestic and international manufacturing most enterprises, the disposal for cutting waste fluid mainly uses agreement trust process or process voluntarily.Dirty
Water discharge standard has strict restriction to the pH value in waste water, oils and fats, solid and tenor.Owing to cutting waste fluid is containing multiple
Pollutant, and complicated component, intractability is relatively big, in the face of the requirement of environmental regulation of increasingly stringent and waste water process standard, one
As enterprise self be difficult to possess the technical conditions that cutting waste fluid processes, or need once to put into more equipment and manpower, because of
And most typically and economic cutting waste fluid processing mode are to entrust to have the company of qualification on behalf of process at present.
Along with the fast development of China's cutting fluid industry, the difficult problem that cutting waste fluid processes highlights day by day.As a example by Hubei Province: have
The enterprise of cutting (lubrication) liquid waste processing qualification is 25, and the average price of cutting per ton (lubrication) liquid waste processing is 4500
Unit.In the face of the treatment cost of waste liquor of great number, numerous enterprises can't bear the heavy load, and fraction enterprise even makes a desperate move, and abandons or " steathily
Row ".Certainly, if a difficult problem for cutting waste fluid process fails to obtain scientific and effective process, it is suspended in this on the national crown
" time bomb " early party breaks out, and then environment, the safety of our life is caused great impact.
Therefore a kind of cutting waste fluid processing system efficient, simple of research, tries hard to reduce all kinds of processing cost, is currently to need to solve
The critical problem that cutting waste fluid pollutes.
Utility model content
The purpose of this utility model is to overcome above-mentioned technical deficiency, proposes the processing system of a kind of cutting waste fluid, solves existing skill
The technical problem that in art, cutting waste fluid intractability is big, processing cost is high.
For reaching above-mentioned technical purpose, the technical solution of the utility model provides the processing system of a kind of cutting waste fluid, including first
Regulating reservoir, pretreatment unit and MBR processing means, described pretreatment unit includes that the light being connected with described first regulating reservoir is urged
Oxidation device and the aerator being all connected with described photocatalytic oxidation reactor and filter, described MBR processing means
Including the second regulating reservoir being sequentially connected with, anaerobic reactor, the 3rd regulating reservoir and membrane bioreactor, described second regulating reservoir with
Described filter connects；Wherein, described photocatalytic oxidation reactor includes the first photocatalytic-oxidation being connected with described first regulating reservoir
Change reactor and the second photocatalytic oxidation reactor being connected with described filter, described first photocatalytic oxidation reactor inner light source
For medium pressure mercury lamp or iodine-tungsten lamp, described second photocatalytic oxidation reactor inner light source is uviol lamp.
Preferably, the water inlet of described first regulating reservoir is provided with grid, outlet is provided with effusion meter, described first regulating reservoir
Water-level gauge it is provided with on sidewall.
Preferably, described MBR processing means include a collection portion being connected with gas outlet, described anaerobic reactor top and one with
The acetic acid tank of the reaction chamber connection of described anaerobic reactor.
Preferably, an inner cycle channel, described inner cycle channel one end and described anaerobic reaction it are provided with in described anaerobic reactor
The gas outlet of device connects, the other end connects with the reaction chamber inner bottom part of described anaerobic reactor.
Preferably, being provided with a temperature-controlled member in described anaerobic reactor, described temperature-controlled member includes one for anti-to described anaerobism
Answer the heater of medium heating in device, one in detecting described anaerobic reactor the temperature sensor of medium temperature and a basis
Temperature sensor detection temperature controls the controller of described heater button.
Preferably, described aerator includes connecting with described first photocatalytic oxidation reactor and the second photocatalytic oxidation reactor respectively
The first aerator connect and the second aerator.
Preferably, described first photocatalytic oxidation reactor, the second photocatalytic oxidation reactor, the second regulating reservoir, anaerobic reaction
Agitator it is provided with in device.
Preferably, the separate mode of described membrane bioreactor is crossflow membrane filtration.
Compared with prior art, the first photocatalysis oxidation reaction of medium pressure mercury lamp or iodine-tungsten lamp light source it is provided with in this utility model passes through
Device and in be provided with the second photocatalytic oxidation reactor of ultraviolet light source and carry out Treatment by Photocatalysis Oxidation successively, be conducive in waste liquid
Ring-type, chain Organic substance is degraded successively, improves the biodegradability of waste liquid, and follow-up anaerobic fermentation processes and MBR
Filtration treatment, it is achieved that the energy recycling of waste liquid and the standardization discharge of pollutant.
Accompanying drawing explanation
Fig. 1 be cutting waste fluid of the present utility model the attachment structure schematic diagram of processing system.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
This utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain this practicality
Novel, it is not used to limit this utility model.
Embodiment of the present utility model provide a kind of cutting waste fluid processing system and process technique, as it is shown in figure 1, should
Processing system includes the first regulating reservoir 1, pretreatment unit 2 and MBR processing means 3, cutting waste fluid through the first regulating reservoir 1,
The process successively of pretreatment unit 2 and MBR processing means 3, can meet emission request, and concrete process is as follows:
(1) by the cutting waste fluid mix homogeneously after removing foreign material, and pH to 5～8 is regulated；
First cutting waste fluid is collected in the first regulating reservoir 1, and grid 11 is set at the water inlet of the first regulating reservoir 1 so that
Remove the foreign material in waste liquid, water level is set in the outlet of the first regulating reservoir 1 arranges effusion meter the 12, first regulating reservoir 1 simultaneously
Meter 13, in order to its waste liquid the rate of output water of Real Time Observation, and the water inlet in the first water transfer pond 1 may also set up effusion meter 12,
So that Real Time Observation waste liquid water inlet speed, effusion meter 12 can with water-level gauge 13 with the use of, in order in the first regulating reservoir 1
Waste liquid controls and supervision, and matches with other equipment follow-up use.Water-level gauge 13 is observed when the waste liquid water in the first water transfer pond 1
After amount reaches setting value, carry out mix and blend 1～2 hours by its interior agitator 10, carry out pH value debugging during stirring, extremely
Mix homogeneously, pH value are 5～8, are adjusted, by the first regulating reservoir 1, the water yield and water quality that pump into its interior waste liquid so that it is
Reach certain stability, in order to follow-up process.
(2) cutting waste fluid is carried out photochemical catalytic oxidation, and separate the float that photochemical catalytic oxidation produces；
After the first regulating reservoir 1 regulation, need by pretreatment unit 2, waste liquid to be carried out pretreatment, specifically, pass through water
Waste liquid in first regulating reservoir 1 is delivered to photocatalytic oxidation reactor 21 and carries out photocatalysis oxidation reaction by transport pump, is reacting
Journey uninterruptedly provides oxygen needed for oxidation reaction by aerator 22, to ensure the adequacy of reaction.
Owing to cutting waste fluid usually contains oils, surfactant, EP agent, antibacterial and float etc..Oils thing
Matter acts primarily as lubrication in cutting fluid, is one of the important component of cutting fluid, typically has plant oil base, mineral oil base two class.
Vegetable oil biological degradability is good, easily decomposition and consumption in fermentation process.And mineral oil degraded and biodegradability extreme difference,
This has also become one of difficult point in cutting waste fluid processing procedure.Additionally, the antibacterial contained by cutting waste fluid is generally the ring of difficult degradation
Shape Organic substance, the existence of antibacterial can hinder the fermentation of microorganism during waste liquid biochemical treatment, so that take special pathway
Antibacterial is processed.
In order to realize ring-type, the chain organic cracking of part difficult degradation in waste liquid, improve the biodegradability of waste liquid, the present embodiment
Described photochemical catalytic oxidation includes the first oxidation stage and the second oxidation stage, will be set to two by above-mentioned photocatalytic oxidation reactor 21
Segmentation reactor, the respectively first photocatalytic oxidation reactor 211 and the second photocatalytic oxidation reactor 212.Corresponding,
Described aerator 22 includes being connected with described first photocatalytic oxidation reactor 211 and the second photocatalytic oxidation reactor 212 respectively
The first aerator 221 and the second aerator 222.
Wherein, medium pressure mercury lamp or iodine-tungsten lamp are set in the first oxidation stage, the first photocatalytic oxidation reactor 211 as light source
213, waste liquid is carried out illumination, light application time is 1.5～3.5 hours, and reaction temperature is 20～40 DEG C, so that make cutting give up
In liquid, the mineral oil of difficult degradation, antibacterial etc. realize initial breakdown.
At the second oxidation stage, the second photocatalytic oxidation reactor 212 arranges uviol lamp as light source 213, light application time
Being 1～3 hour, reaction temperature is 20～40 DEG C, makes the material generated in the first oxidation stage carry out secondary degraded, degrades simultaneously
Various surfactants and additive in cutting waste fluid, to improve the overall biodegradability of waste liquid.
Through above-mentioned two sections of Treatment by Photocatalysis Oxidation, the degradation efficiency of cutting waste fluid can be greatly improved, at follow-up biochemistry
Reason.
In above-mentioned first oxidation stage and the second oxidation stage, the first photocatalytic oxidation reactor 211 and the second photochemical catalytic oxidation
The photocatalyst that reactor 212 is used is TiO2、Fe2O3、WO3, one or both in ZnO.
In the case of other conditions are identical, medium pressure mercury lamp, iodine-tungsten lamp, uviol lamp are carried out with the present embodiment separately as light source
Contrast, the water quality after detection process, testing result see table:
As seen from the above table, in the water quality after being processed by the present embodiment, the most intractable petroleum-type substantially reduces, and COD index is bright
The oxidant content of the reducing substances consumption in aobvious reduction, i.e. oxidation 1L water sample substantially reduces, and water pollution degree significantly reduces.
Meanwhile, Biochemical oxygen demands on the 5th and the ratio BOD of COD5/ COD index is the most significantly raised, thus illustrates this enforcement
The effect of example processing cutting waste liquid is more preferable.
In order to increase speed and the effect of above-mentioned reaction, the present embodiment is in the first photocatalytic oxidation reactor 211 and the second photocatalysis
Oxidation reactor 212 is respectively provided with agitator 10 be stirred, to ensure the harmony of reaction.
After Treatment by Photocatalysis Oxidation, filtered by the filter 23 being connected with the second photocatalytic oxidation reactor 212 water side
Process, the float that Treatment by Photocatalysis Oxidation is formed is filtered to remove.
(3) step (2) separating obtained waste liquid carries out the pre-heat treatment successively, anaerobic fermentation processes, MBR filtration treatment, i.e.
Can.
Waste liquid is after pretreatment unit 2 processes, then is processed by MBR processing means 3.Concrete, through step
(2) waste liquid after processing is flowed in the second regulating reservoir 31 by pipeline and carries out the pre-heat treatment, for the ease of in the second regulating reservoir
Preheat process, be provided with heater 34 and agitator 10 in the second regulating reservoir 31, improve the harmony of regulation.Specifically
, in the second regulating reservoir 31, middle the pre-heat treatment to temperature is 100～120 DEG C, and the pre-heat treatment regulates carbon in waste liquid, nitrogen, phosphorus simultaneously
Ratio to setting value.
After regulation, in waste liquid is pumped into the anaerobic reactor 32 containing activated sludge, carry out anaerobic fermentation process, anaerobic reactor
32 are preferably UBF anaerobic reactor.The anaerobic fermentation of the waste liquid of the present embodiment is processed as waste liquid fermentation methane phase technique, therefore detests
Oxygen reactor 32 top arranges gas outlet and is connected with for collecting the collection portion 33 of methane gas.And in order to reduce production cost,
One inner cycle channel 321, described inner cycle channel 321 one end and described anaerobic reactor 32 can be set in anaerobic reactor 32
Gas outlet connect, the other end connect with the reaction chamber inner bottom part of described anaerobic reactor 32, thus utilize react generation gas
As the source of anaerobic gas, save the cost of anaerobic gas.
Wherein, after pumping into waste liquid, hydraulic detention time and the sludge retention time of anaerobic reactor 32 are set to 3～5 hours,
Reaction temperature is set to 20～40 DEG C, carries out continuously stirred by agitator 10 in anaerobic reactor 32, to promote that anaerobism is anti-
The carrying out answered, accelerates reaction rate.For the ease of the control to reaction temperature, in anaerobic reactor 32, also set up a temperature-controlled member
35, described temperature-controlled member include one in described anaerobic reactor 32 medium heating heater 351, for detecting
State the temperature sensor 352 and of medium temperature in anaerobic reactor 32 to detect temperature according to temperature sensor 352 and control described
The controller 353 of heater 351 switch, specifically, when in anaerobic reactor 32, medium temperature is less than setting value, controller
353 drive heater 351 to work, and when in anaerobic reactor 32, temperature is higher than setting value, controller 353 controls heater 351
Quit work.
And, in order to accelerate reaction rate, being provided above a deposit at anaerobic reactor 32 has the acetic acid tank 36 of acetic acid, detests
Continual can add acetic acid in the reaction chamber of anaerobic reactor 32 in aerobe fermentation processing procedure, acetic acid addition is anaerobic reaction
In the reaction chamber of device 32 the 10% of waste liquid volume.Owing to waste liquid is generally divided into three phases through the methanogenic process of anaerobic fermentation.The
One stage was that in waste liquid, organic matter fermentation generates alcohols；Second stage is that alcohols is converted into acetic acid；Phase III is that acetic acid converts
Generate methane.Waste liquid self anaerobic fermentation methane phase speed is relatively slow, can significantly be increased by the supplementary formation anaerobic environment of external gas
Add cost, the present embodiment then direct afterfermentation intermediate product acetic acid the most during the fermentation, add the methanogenic speed of waste liquid and
Yield, and be conducive to maintaining suitable anaerobic environment, methane concentration increases the collection being also beneficial to gas, thus really realizes useless
The energy of liquid.
After anaerobic fermentation processes, waste liquid entrance the 3rd regulating reservoir 37 is adjusted, for the ease of the harmony of regulation, the 3rd regulating reservoir
Inside it is also equipped with agitator 10.After regulation is stable, carry out MBR filtration treatment, it should be noted that the present embodiment institute
State MBR filtration treatment and refer to membrane bioreactor 38 filtration treatment.And the separate mode of membrane bioreactor 38 is cross-flow
Membrane filtration, the concrete film that separates can use the one of hollow-fibre membrane, tubular membrane.Wherein, the nominal pore size of described separation film is
0.2 μm, and the liquid waste processing temperature of MBR filtration treatment be 5～40 DEG C, pH value be 6～9.
Compared with prior art, this utility model passes through two-period form Treatment by Photocatalysis Oxidation, achieves ring-type in waste liquid, chain respectively
The material of the organic initial breakdown of shape and initial breakdown and the secondary degraded of other materials, improve the biodegradability of waste liquid, have
It is beneficial to follow-up anaerobic fermentation process and MBR filtration treatment, it is achieved that the energy recycling of waste liquid and the standardization row of pollutant
Put；And, processing method of the present utility model is simple, convenient, and cost of investment and operating cost are low, is beneficial to promote.
The above detailed description of the invention of the present utility model, is not intended that the restriction to this utility model protection domain.Any
Various other made according to technology of the present utility model design change and deformation accordingly, should be included in this utility model right
In the protection domain required.
Claims (8)
1. the processing system of a cutting waste fluid, it is characterised in that include the first regulating reservoir, pretreatment unit and MBR process
Device, described pretreatment unit include the photocatalytic oxidation reactor that is connected with described first regulating reservoir and all with described photocatalysis
The aerator of oxidation reactor connection and filter, described MBR processing means includes the second regulating reservoir, the anaerobism being sequentially connected with
Reactor, the 3rd regulating reservoir and membrane bioreactor, described second regulating reservoir is connected with described filter；Wherein, described light is urged
Oxidation device includes the first photocatalytic oxidation reactor being connected with described first regulating reservoir and be connected with described filter
Two photocatalytic oxidation reactors, described first photocatalytic oxidation reactor inner light source is medium pressure mercury lamp or iodine-tungsten lamp, described second light
Catalyst oxidation reactor inner light source is uviol lamp.
Processing system the most according to claim 1, it is characterised in that the water inlet of described first regulating reservoir be provided with grid,
Outlet is provided with effusion meter, and described first regulating reservoir sidewall is provided with water-level gauge.
Processing system the most according to claim 2, it is characterised in that described MBR processing means includes that one detests with described
The collection portion of gas outlet, oxygen reactor top connection and an acetic acid tank connected with the reaction chamber of described anaerobic reactor.
Processing system the most according to claim 3, it is characterised in that in being provided with one in described anaerobic reactor, circulation is logical
Road, described inner cycle channel one end is connected with the gas outlet of described anaerobic reactor, the reaction of the other end and described anaerobic reactor
Connect bottom intracavity.
5. according to the arbitrary described processing system of Claims 1 to 4, it is characterised in that be provided with a temperature in described anaerobic reactor
Control parts, described temperature-controlled member includes one for the heater of medium heating in described anaerobic reactor, described for detecting
In anaerobic reactor, the temperature sensor and of medium temperature controls described heater button according to temperature sensor detection temperature
Controller.
6. according to the arbitrary described processing system of Claims 1 to 4, it is characterised in that described aerator includes respectively with described the
The first aerator that one photocatalytic oxidation reactor and the second photocatalytic oxidation reactor connect and the second aerator.
7. according to the arbitrary described processing system of Claims 1 to 4, it is characterised in that described first photocatalytic oxidation reactor,
It is provided with agitator in second photocatalytic oxidation reactor, the second regulating reservoir, anaerobic reactor.
8. according to the arbitrary described processing system of Claims 1 to 4, it is characterised in that the separate mode of described membrane bioreactor
For crossflow membrane filtration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620330456.9U CN205710296U (en) | 2016-04-19 | 2016-04-19 | The processing system of cutting waste fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620330456.9U CN205710296U (en) | 2016-04-19 | 2016-04-19 | The processing system of cutting waste fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205710296U true CN205710296U (en) | 2016-11-23 |
Family
ID=57297549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620330456.9U Expired - Fee Related CN205710296U (en) | 2016-04-19 | 2016-04-19 | The processing system of cutting waste fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205710296U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105753260A (en) * | 2016-04-19 | 2016-07-13 | 武汉玻尔科技股份有限公司 | Cutting waste liquid treatment system and cutting waste liquid treatment process |
| CN107877253A (en) * | 2017-10-19 | 2018-04-06 | 常州理工科技股份有限公司 | A kind of cutting fluid recycling system in the manufacture for wheel hub |
-
2016
- 2016-04-19 CN CN201620330456.9U patent/CN205710296U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105753260A (en) * | 2016-04-19 | 2016-07-13 | 武汉玻尔科技股份有限公司 | Cutting waste liquid treatment system and cutting waste liquid treatment process |
| CN105753260B (en) * | 2016-04-19 | 2019-02-19 | 武汉玻尔科技股份有限公司 | The processing system and treatment process of cutting waste fluid |
| CN107877253A (en) * | 2017-10-19 | 2018-04-06 | 常州理工科技股份有限公司 | A kind of cutting fluid recycling system in the manufacture for wheel hub |
| CN107877253B (en) * | 2017-10-19 | 2019-11-19 | 常州理工科技股份有限公司 | A kind of cutting fluid recycling system in wheel hub manufacture |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102557341B (en) | Treatment method of high-concentration emulsion waste water | |
| CN100390081C (en) | Process method for waste water containing nitrobenzene and aniline | |
| CN101633542A (en) | Treatment process of waste water produced in potato starch manufacturing | |
| CN202390287U (en) | Internal iron-carbon UASB-SBR (Upflow Anaerobic Sludge Blanket-Sequencing Batch Reactor) coupling system for treatment of printing and dyeing wastewater | |
| CN205710296U (en) | The processing system of cutting waste fluid | |
| CN102757153B (en) | Method for treating wastewater generated during production of 12-hydroxy stearic acid | |
| CN102229447A (en) | Anaerobic reactor for treating waste water containing emulsified liquid | |
| CN102491591B (en) | Sewage treating and recycling system and method for high-concentration polyester slices | |
| KR102488891B1 (en) | Methods and apparatus used in acrolein reactor wastewater treatment | |
| CN207845373U (en) | A kind of emulsified waste liquid processing unit | |
| CN110066831A (en) | The quick natural pond method processed of kitchen garbage | |
| CN103214147A (en) | Oil-refining wastewater treatment method and device | |
| CN104163549A (en) | Treatment technique of batik dyeing wastewater | |
| CN202063797U (en) | High-concentration printing and dyeing wastewater treatment system | |
| CN100509661C (en) | Treating technique of polyether polyatomic alcohol producing sewage recovering and utilization | |
| CN207227223U (en) | A kind of processing of gasification of poor coal waste water and recycle device | |
| CN105753260B (en) | The processing system and treatment process of cutting waste fluid | |
| CN206219393U (en) | F T synthetic wastewater processing systems | |
| CN214299762U (en) | Polyester fiber waste water reuse of reclaimed water device | |
| CN202038946U (en) | Wastewater treatment device in acrylic production process | |
| CN202054668U (en) | Anaerobic reactor for treating wastewater containing emulsion | |
| CN108975616A (en) | Handle the system and method for biomass pyrolytic water | |
| CN211226833U (en) | Centralized treatment system for oily sewage of ship | |
| CN203392982U (en) | High-concentration organic wastewater treatment device | |
| CN208454670U (en) | A kind of printing ink wastewater processing integrating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 Termination date: 20200419 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |