CN108408999A - A kind of preprocess method and device of cutting waste fluid - Google Patents
A kind of preprocess method and device of cutting waste fluid Download PDFInfo
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- CN108408999A CN108408999A CN201810495353.1A CN201810495353A CN108408999A CN 108408999 A CN108408999 A CN 108408999A CN 201810495353 A CN201810495353 A CN 201810495353A CN 108408999 A CN108408999 A CN 108408999A
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- 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
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- 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
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- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/463—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
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- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
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- 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
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- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
Abstract
The present invention relates to field of waste water treatment, more particularly to the preprocess method and device of a kind of cutting waste fluid.Method includes step 1：Cutting waste fluid in collecting pit is pumped into regulating reservoir, the pH value of the waste liquid is adjusted to 3.0 5.0；Step 2：The cutting waste fluid of regulating reservoir is pumped into the three-in-one reactor comprising electric flocculation electricity Fenton three-dimensional electrolysis treatment technology, is demulsified to the cutting waste fluid, most of organic matter is removed；Step 3：The water outlet of the three-in-one reactor is pumped into coagulative precipitation tank, the pH value of waste liquid in coagulative precipitation tank is adjusted to 7.0 10.0, flocculant is added and carries out coagulating kinetics, coagulative precipitation tank water outlet is directly accessed comprehensive wastewater treatment system.The preprocess method of the present invention and the device suitable for this method can make cutting waste fluid be demulsified, and thorough, water outlet biodegradability is good.
Description
Technical field
The present invention relates to field of waste water treatment, more particularly to the preprocess method and device of a kind of cutting waste fluid.
Background technology
Cutting fluid is common coolant and lubricant in a kind of intermetallic composite coating and mechanical processing process, and ingredient is according to making
Include oil, oil-water emulsion, paste, gel, water etc. with the difference of occasion, to cutting process in intermetallic composite coating or machine-building
The effects that playing lubrication, cooling, cleaning, antirust.
Cutting fluid generates a large amount of cutting waste fluids in use, because being mixed into impurity failure, main chemical compositions packet
Include water, base oil (mineral oil, vegetable oil, synthetic ester or their mixture), surfactant, rust-inhibiting additive (aphthenic acids
Zinc, petroleum sodium sulfonate (being also emulsifier), barium mahogany sulfonate, benzotriazole, sorbitol monooleate, aluminum stearate), extreme pressure
Additive (polar compounds of the elements such as sulfur-bearing, phosphorus, chlorine), friction improver (anti-friction agent or oiliness additive), antioxidant
Deng, organic pollution and ammonia nitrogen concentration height, and have certain toxicity, it would seriously pollute the environment and endanger if unprocessed direct emission
Evil health.Therefore, most important to dealing carefully with for cutting waste fluid.
The processing method of cutting waste fluid is mostly and is separated by solid-liquid separation after demulsifier is added, then be included in comprehensive wastewater processing system at present
System, there are demulsifications to be not thorough, and biodegradability is poor, and demulsifier additive capacity is big, and reagent cost is excessively high, and sludge quantity is big, and entrust outer place
Set the shortcomings of costly.
Invention content
For overcome the deficiencies in the prior art, passing through electric flocculation-electricity Fenton-three-dimensional the purpose of the present invention is to provide a kind of
After electrolysis complex technique is handled, demulsification is thorough, is discharged the preprocess method of the good cutting waste fluid of biodegradability and is suitable for being somebody's turn to do
The pretreatment unit of the cutting waste fluid of method.
The technical scheme is that：A kind of preprocess method of cutting waste fluid is provided, is included the following steps：
Step 1：Cutting waste fluid in collecting pit is pumped into regulating reservoir, the pH value of the waste liquid is adjusted to 3.0-5.0；
Step 2：The cutting waste fluid of regulating reservoir is pumped into three conjunctions for including electric flocculation-electricity Fenton-three-dimensional electrolysis treatment technology
It in one reactor, is demulsified to the cutting waste fluid, removes most of organic matter；
Step 3：The water outlet of the three-in-one reactor is pumped into coagulative precipitation tank, by waste liquid in coagulative precipitation tank
PH value is adjusted to 7.0-10.0, and flocculant is added and carries out coagulating kinetics, coagulative precipitation tank water outlet is directly accessed comprehensive wastewater
Processing system.
Preferably, the flocculant in the step 3 is polyacrylamide, addition 2-5mg/L；It is described mixed
Waste liquid in solidifying sedimentation basin carries out the coagulating sedimentation time as 30-50min.
Preferably, the waste water in the step 2 carries out air supporting by slag-scraper and scrapes before entering three-in-one reactor
Slag treatment.
Preferably, the three-in-one reactor of the electric flocculation in the step 2-electricity Fenton-three-dimensional electrolysis treatment technology includes
Electric flocculation reaction zone, electro-Fenton reaction area and three-dimensional electrolysis reaction zone, the three-in-one reactor is interior to be equipped with one piece of plate
With two pieces of cathode plates, electric flocculation reaction zone bottom is equipped with the first compressed air inlet port and top is pumped into equipped with waste liquid
Mouth, flocculant inlet and slag-scraper；It is equipped with oxidant injection ports in the middle part of the electro-Fenton reaction area and bottom is equipped with second
Compressed air inlet port；Inside the three-dimensional electrolysis reaction zone filled with third electrode made of being sintered by iron carbon-supported catalysts and
Bottom is equipped with third compressed air inlet port, and three-dimensional electrolysis reaction zone top is equipped with water outlet.
Preferably, the aeration speed of first, second and third compressed air inlet port is 2.5-5L/min.
Preferably, the oxidant injected in the electro-Fenton reaction area is H2O2, addition 2ml/L-6m1/L.
Preferably, electrode current density when wastewater electrolytic in the three-dimensional electrolysis reaction zone is 25mA/cm2-
200mA/cm2, reaction time 30-80min.
The present invention another technical solution be：A kind of pretreatment unit of cutting waste fluid is provided, including is used to collect and cut
The collecting pit of waste liquid is cut, the regulating reservoir of cutting waste fluid pH value is adjusted, the three-in-one of electrolytic oxidation process is carried out to the cutting waste fluid
Reactor and coagulative precipitation tank, the three-in-one reactor are to include the three of electric flocculation-electricity Fenton-three-dimensional electrolysis treatment technology
Unify electrolytic cell；The collecting pit, regulating reservoir, three-in-one electrolytic cell and coagulative precipitation tank by wastewater treatment sequence from left to right according to
It is secondary by piping connection, connect pipeline between the collecting pit and regulating reservoir and be equipped with the first elevator pump, connect the adjusting
Pond and the pipeline of the three-in-one reactor are equipped with the second elevator pump.
Preferably, the three-in-one electrolytic cell include rectangle groove body, one piece of anode pole being arranged in rectangular slot body
First partition and second partition is arranged in plate and two pieces of cathode plates, the rectangle groove body from left to right,
It is anti-that the rectangular slot intracoelomic cavity is divided into electric flocculation reaction zone, electric Fenton by the first partition and second partition
Area and three-dimensional electrolysis reaction zone are answered, the circular hole of several a diameter of 3-7mm, the second partition are equipped in the middle part of the first partition
Lower part is equipped with the circular hole of several a diameter of 3-7mm, among plate setting rectangle groove body and with the first and second partition board
Vertical, two pieces of cathode plates are respectively arranged at plate front and rear sides and parallel with the plate, often
The spacing of cathode plate described in block and the plate is all 250-500mm.
Preferably, the first compressed air inlet port and top are equipped with from top to bottom successively in electric flocculation reaction zone bottom
Equipped with slag-scraper, waste liquid pump intake and flocculant inlet, oxidant injection ports are equipped in the middle part of the electro-Fenton reaction area
And bottom is equipped with the second compressed air inlet port, is filled with inside the three-dimensional electrolysis reaction zone and is sintered by iron carbon-supported catalysts
Made of third electrode and bottom be equipped with third compressed air inlet port, be equipped with water outlet on three-dimensional electrolysis reaction zone top
Mouthful.
Preferably, the plate is compound polar plate, and the compound polar plate is times of iron electrode, aluminium electrode, Ti electrode
Meaning combination；The cathode plate material is one kind in graphite material, stainless steel material, titanium material.
Beneficial effects of the present invention are：
1. after electric flocculation-electricity Fenton-three-dimensional electrolysis complex technique processing, original emulsification structure is abolished, and water outlet is clear
It is bright, and the ring-type in cutting waste fluid, chain organic matter are degraded successively, and most of organic matter is removed.
2. after electric flocculation-electricity Fenton-three-dimensional electrolysis complex technique processing, the biodegradability of cutting waste fluid is good, solution
High concentration of having determined cutting waste fluid can not stablize the problem of linking biochemical treatment.
3. this method and device scrape the basic demulsification that slag realizes cutting waste fluid using electric flocculation+air supporting, waste liquid is clear after scraping slag
It is bright, then be thoroughly demulsified using electric Fenton, solve the problems, such as that high concentration cutting waste fluid can not continue thoroughly to be demulsified.
4. using three-dimensional electrolysis excitation residual H2O2Reaction generates more hydroxyl radical free radicals completely, further degrades organic
Object, and lower cutting waste fluid toxicity, solve residual H2O2The problem of influencing microbial activity, while realizing H2O2Abundant profit
With.
5. device design is simple, compact-sized, floor space is small, and one-time investment is small, and automatic operating degree is high, tool
There is general applicability.
6. a small amount of polyacrylamide, H only need to be added in the device operational process2O2And acid, less additional increase sludge
Amount, operating cost is low, and liquid waste processing burden is small, is suitble to promote the use of.
Description of the drawings
Fig. 1 is a kind of flow diagram of the preprocess method of cutting waste fluid of the present invention.
Fig. 2 is a kind of structural schematic diagram of the pretreatment unit of cutting waste fluid of the present invention.
Fig. 3 is a kind of three-in-one electrolytic cell vertical view of the pretreatment unit of cutting waste fluid of the present invention.
Specific implementation mode
The present invention is further detailed in conjunction with the accompanying drawings below：
Refering to Figure 1, the present invention provides a kind of preprocess method of cutting waste fluid, include the following steps：
Step 1：Cutting waste fluid in collecting pit is pumped into regulating reservoir, the pH value of the waste liquid is adjusted to 3.0-5.0；
Step 2：The cutting waste fluid of regulating reservoir is pumped into three conjunctions for including electric flocculation-electricity Fenton-three-dimensional electrolysis treatment technology
It in one reactor, is demulsified to the cutting waste fluid, removes most of organic matter；Three-in-one reactor includes electric flocculation reaction
Area, electro-Fenton reaction area and three-dimensional electrolysis reaction zone, the three-in-one reactor is interior to be equipped with one piece of plate and two pieces of cathodes
Pole plate, electric flocculation reaction zone bottom is equipped with the first compressed air inlet port and top is equipped with waste liquid pump intake, flocculant
Inlet and slag-scraper；Be equipped with oxidant injection ports in the middle part of the electro-Fenton reaction area and bottom be equipped with the second compressed air into
Gas port；Inside the three-dimensional electrolysis reaction zone the is equipped with filled with third electrode and bottom made of being sintered by iron carbon-supported catalysts
Three compressed air inlet ports, three-dimensional electrolysis reaction zone top are equipped with water outlet.
Step 3：The water outlet of the three-in-one reactor is pumped into coagulative precipitation tank, by waste liquid in coagulative precipitation tank
PH value is adjusted to 7.0-10.0, and flocculant is added and carries out coagulating kinetics, coagulative precipitation tank water outlet is directly accessed comprehensive wastewater
Processing system.
The flocculant in the step 3 is polyacrylamide, addition 2-5mg/L；The coagulative precipitation tank
In waste liquid carry out the coagulating sedimentation time be 30-50min.
Waste water in the step 2 carries out air supporting before entering three-in-one reactor, by slag-scraper and scrapes Slag treatment.
The aeration speed of first, second and third compressed air inlet port is 2.5-5L/min.
The oxidant injected in the electro-Fenton reaction area is H2O2, addition 2ml/L-6m1/L.
Electrode current density when wastewater electrolytic in the three-dimensional electrolysis reaction zone is 25mA/cm2-200mA/cm2, instead
30-80min between seasonable.
It please refers to shown in Fig. 2, the present invention provides a kind of pretreatment units of cutting waste fluid, including are used to collect cutting useless
The collecting pit 1 of liquid adjusts the regulating reservoir 3 of cutting waste fluid pH value, and the three-in-one anti-of electrolytic oxidation process is carried out to the cutting waste fluid
It is to include electric flocculation-electricity Fenton-three-dimensional electrolysis treatment technology to answer device 12 and coagulative precipitation tank 19, the three-in-one reactor 12
Three-in-one electrolytic cell；The collecting pit 1, regulating reservoir 3, three-in-one electrolytic cell and coagulative precipitation tank 19 by wastewater treatment sequence from
Left-to-right passes sequentially through piping connection, connects the pipeline between the collecting pit 1 and regulating reservoir 3 and is equipped with the first elevator pump 2, even
It connects the regulating reservoir 3 and the pipeline of the three-in-one reactor 12 is equipped with the second elevator pump 4.
It please refers to shown in Fig. 2 and Fig. 3, the three-in-one electrolytic cell includes rectangle groove body, is arranged in rectangular slot body
One piece of plate 21 and two pieces of cathode plates 20, the rectangle groove body be arranged from left to right first partition 8 and second every
The rectangular slot intracoelomic cavity is divided into electric flocculation reaction zone, electro-Fenton reaction by plate 9, the first partition 8 and second partition 9
Area and three-dimensional electrolysis reaction zone, the middle part of the first partition 8 are equipped with the circular hole 10 of several a diameter of 3-7mm, described second every
9 lower part of plate is equipped with the circular hole 14 of several a diameter of 3-7mm, and the plate 21 is arranged among rectangle groove body and with the
One, two partition boards are vertical, two pieces of cathode plates 20 be respectively arranged at 21 front and rear sides of the plate and with the sun
Pole pole plate 21 is parallel, and the spacing of every piece of cathode plate 20 and the plate 21 is all 250-500mm.
It is equipped with the first compressed air inlet port 13 in electric flocculation reaction zone bottom and top is from top to bottom equipped with successively
Slag-scraper 7, waste liquid pump intake 5 and flocculant inlet 6 are equipped with oxidant injection ports 11 in the middle part of the electro-Fenton reaction area
And bottom is equipped with the second compressed air inlet port 15, is filled with inside the three-dimensional electrolysis reaction zone and is burnt by iron carbon-supported catalysts
Third electrode 17 and bottom made of knot are equipped with third compressed air inlet port 16, are equipped on three-dimensional electrolysis reaction zone top
Water outlet 18.That injected by flocculant inlet 6 is the required polyacrylamide of flocculation, addition 2-5mg/L.
That injected by oxidant injection ports 11 is the required H of reaction2O2, addition 2ml/L-6m1/L.
The third electrode 17 is granular iron carbon electrode, iron-carbon ratio example 1:L, loading 40%-50%.
Electrode current density when the three-in-one electrolytic tank electrolysis is 25mA/cm2-200mA/cm2, reaction time 30-
80min。
The plate 21 is compound polar plate, the compound polar plate be iron electrode, arbitrary group of aluminium electrode, Ti electrode
It closes；20 material of the cathode plate is one kind in graphite material, stainless steel material, titanium material.
The operation principle of the present invention：
Cutting waste fluid is collected using collecting pit 1.Cutting waste fluid in collecting pit 1 is pumped into adjusting by the first elevator pump 2
Pond 3 adjusts the pH value of waste water between 3.0-5.0, which can make electric flocculation, electric Fenton and three-dimensional electrolysis integrated treatment effect
Fruit reaches best.When pH value is less than above range lower limit, electrocoagulation electrode anode loss is too fast, the H that electric Fenton generates2O2Effect
Rate declines, and three-dimensional electrolysis is easier that dilute hydrogen reaction occurs；When pH value is higher than the above range upper limit, electrocoagulation electrode anode demulsification effect
Rate declines, the Fe that electric Fenton needs2+Precipitation is easily generated, electro-Fenton reaction causes efficiency to decline, and the filler surface of three-dimensional electrolysis is blunt
Change, leads to the inactivation of filler.
Later, the cutting waste fluid in regulating reservoir 3 is pumped by the second elevator pump 4 with electric flocculation-electricity Fenton-three-dimensional electrolysis
In the three-in-one electrolytic cell that complex technique is integrated, the basic demulsification of cutting waste fluid is realized in electric flocculation reaction zone, using electric fragrant
Pause and be thoroughly demulsified, solves the problems, such as that high concentration cutting waste fluid can not continue thoroughly to be demulsified；Residual H is excited using three-dimensional electrolysis2O2
Reaction generates more hydroxyl radical free radicals completely, and further degradation of organic substances reduces cutting waste fluid toxicity, solves residual H2O2
The problem of influencing subsequent biological treatment.
In electric flocculation reaction system, the hydrogen reduction in the compressed air of injection generates hydrogen peroxide, composite anode oxide life
At the molysite and aluminium salt of a large amount of nascent states, ring-type, chain organic matter in cutting waste fluid under the catalytic action of hydrogen peroxide with
The molysite and aluminium salt of nascent state react, and generate the floccule that can be struck off with air supporting, and original emulsification structure is largely demulsified.
By the three-in-one electrolytic cell, treated that cutting waste fluid is pumped into coagulative precipitation tank, adjusts in coagulative precipitation tank
The pH value of waste liquid is 7.0-10.0, and flocculant is added and carries out coagulating kinetics, coagulating sedimentation water outlet biodegradability is good, can be straight
It is received into comprehensive wastewater treatment system.
The flocculant is polyacrylamide, and addition 2-5mg/L, the coagulating sedimentation time is 30-50min.It is electric fragrant
In reaction system, the Fe of nascent state2+It is reacted with H2O2 and generates OH, and then oxygenolysis organic matter, such as following formula (1), (2)：
Fe2++H2O2→Fe3++·OH+OH- (1)
·OH+RH→·R+H2O (2)
In three-dimensional electrolysis reaction system, the hydrogen reduction in the compressed air of injection generates hydrogen peroxide, the peroxidating of generation
The remaining hydrogen peroxide of hydrogen and electro-Fenton reaction area rapidly with Fe present in solution2+Reaction generates OH and Fe3+, due to
Fe3+Initial reduction current potential of the reduction potential compared with O2 just, therefore Fe3+Can on cathode in the reduction process of O2 reducing/regenerating
For Fe2+。
OH has very strong oxidability (2.8V), is only second to the oxidability (2.87V) of fluorine, can be with many in waste water
Redox occurs for component, destroys cyclic annular, chain organic matter structure, and macromolecular is decomposed into small molecule, reach demulsification and
The purpose of degradation of organic substances.
Following table is to use obtained six experimental datas of method of the present invention in the apparatus of the present.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the invention as claimed with
Modification, should all belong to the covering scope of the claims in the present invention.
Claims (10)
1. a kind of preprocess method of cutting waste fluid, which is characterized in that include the following steps：
Step 1：Cutting waste fluid in collecting pit is pumped into regulating reservoir, the pH value of the waste liquid is adjusted to 3.0-5.0；
Step 2：The cutting waste fluid of regulating reservoir is pumped into three-in-one anti-comprising electric flocculation-electricity Fenton-three-dimensional electrolysis treatment technology
It answers in device, is demulsified to the cutting waste fluid, remove most of organic matter；
Step 3：The water outlet of the three-in-one reactor is pumped into coagulative precipitation tank, by the pH value of waste liquid in coagulative precipitation tank
It is adjusted to 7.0-10.0, flocculant is added and carries out coagulating kinetics, coagulative precipitation tank water outlet is directly accessed comprehensive wastewater processing
System.
2. the preprocess method of cutting waste fluid according to claim 1, which is characterized in that the wadding in the step 3
Solidifying agent is polyacrylamide, addition 2-5mg/L；Waste liquid in the coagulative precipitation tank carries out the coagulating sedimentation time and is
30-50min。
3. the preprocess method of cutting waste fluid according to claim 1, which is characterized in that the waste water in the step 2 exists
Into before three-in-one reactor, air supporting is carried out by slag-scraper and scrapes Slag treatment.
4. the preprocess method of cutting waste fluid according to claim 1, which is characterized in that the electricity wadding in the step 2
The three-in-one reactor of solidifying-electric Fenton-three-dimensional electrolysis treatment technology includes electric flocculation reaction zone, electro-Fenton reaction area and three-dimensional electricity
Reaction zone is solved, one piece of plate and two pieces of cathode plates, electric flocculation reaction zone bottom are equipped in the three-in-one reactor
Portion is equipped with the first compressed air inlet port and top is equipped with waste liquid pump intake, flocculant inlet and slag-scraper；The electricity
It is equipped with oxidant injection ports in the middle part of Fenton's reaction area and bottom is equipped with the second compressed air inlet port；The three-dimensional electrolysis reaction zone
Inside is equipped with third compressed air inlet port filled with third electrode and bottom made of being sintered by iron carbon-supported catalysts, and described three
It ties up cell reaction area top and is equipped with water outlet.
5. the preprocess method of cutting waste fluid according to claim 4, which is characterized in that first, second and third compression is empty
The aeration speed of gas air inlet is 2.5-5L/min；The oxidant injected in the electro-Fenton reaction area is H2O2, addition is
2ml/L-6m1/L。
6. the preprocess method of cutting waste fluid according to claim 4, which is characterized in that in the three-dimensional electrolysis reaction zone
Wastewater electrolytic when electrode current density be 25mA/cm2-200mA/cm2, reaction time 30-80min.
7. a kind of pretreatment unit of cutting waste fluid, which is characterized in that include the collecting pit for collecting cutting waste fluid, adjusting is cut
The regulating reservoir for cutting waste liquid pH value carries out the cutting waste fluid the three-in-one reactor and coagulative precipitation tank of electrolytic oxidation process,
The three-in-one reactor is the three-in-one electrolytic cell for including electric flocculation-electricity Fenton-three-dimensional electrolysis treatment technology；The collection
Pond, regulating reservoir, three-in-one electrolytic cell and coagulative precipitation tank pass sequentially through piping connection from left to right by wastewater treatment sequence, connection
Pipeline between the collecting pit and regulating reservoir is equipped with the first elevator pump, connects the regulating reservoir and the three-in-one reactor
Pipeline be equipped with the second elevator pump.
8. the pretreatment unit of cutting waste fluid according to claim 7, which is characterized in that the three-in-one electrolytic cell includes
Rectangle groove body, one piece of plate being arranged in rectangular slot body and two pieces of cathode plates, the rectangle groove body is by a left side
To right setting first partition and second partition, the rectangular slot intracoelomic cavity is divided into electricity by the first partition and second partition
Flocculation reaction area, electro-Fenton reaction area and three-dimensional electrolysis reaction zone, the first partition middle part are equipped with several a diameter of 3-7mm
Circular hole, the second partition lower part is equipped with the circular hole of several a diameter of 3-7mm, and rectangle groove body is arranged in the plate
It is intermediate and vertical with the first and second partition board, two pieces of cathode plates be respectively arranged at the plate front and rear sides and with
The plate is parallel, and the spacing of every piece of cathode plate and the plate is all 250-500mm.
9. the pretreatment unit of cutting waste fluid according to claim 8, which is characterized in that at electric flocculation reaction zone bottom
Portion is equipped with the first compressed air inlet port and top and is from top to bottom equipped with slag-scraper, waste liquid pump intake and flocculant injection successively
Mouthful, it is equipped with oxidant injection ports in the middle part of the electro-Fenton reaction area and bottom is equipped with the second compressed air inlet port, described
It is empty equipped with third compression filled with third electrode and bottom made of being sintered by iron carbon-supported catalysts inside three-dimensional electrolysis reaction zone
Gas air inlet is equipped with water outlet on three-dimensional electrolysis reaction zone top.
10. the pretreatment unit of cutting waste fluid according to claim 8, which is characterized in that the plate is compound
Pole plate, the compound polar plate are the arbitrary combination of iron electrode, aluminium electrode, Ti electrode；The cathode plate material be graphite material,
One kind in stainless steel material, titanium material.
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| CN105016537A (en) * | 2014-04-30 | 2015-11-04 | 荣诚环境工程集团有限公司 | Plug flow type dual-electrode electrolysis air floater |
| CN206142964U (en) * | 2016-09-18 | 2017-05-03 | 广东智环创新环境科技有限公司 | Integration high concentration sewage advanced oxidation treatment equipment |
| CN107117748A (en) * | 2017-06-21 | 2017-09-01 | 深圳市世清环保科技有限公司 | The processing method and processing unit of aluminium anodes padding waste water decoloring |
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