CN105293643B - The method of catalytic and oxidative electrolysis technology treated sewage - Google Patents
The method of catalytic and oxidative electrolysis technology treated sewage Download PDFInfo
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Abstract
The invention belongs to technical field of sewage, more particularly to a kind of method of catalytic and oxidative electrolysis technology treated sewage, chelating type catalysis oxidation resin catalyst is prepared first, then sewage is added in catalytic and oxidative electrolysis technology reactive tank, chelating type catalysis oxidation resin catalyst is added simultaneously in reactive tank, apply voltage between reactive tank cathode-anode plate, oxygenic aeration facility is arranged in reactive tank lower part, wastewater treatment efficiency is observed by COD online analyzer, stop electrolysis when COD of sewage reaches desired value, obtains target water outlet；Chelating type catalysis oxidation resin catalyst includes active component and carrier, and carrier is chelating resin.The present invention can be used to handle complex in composition, the highly concentrated difficult for biological degradation sewage of various pollutants, not generate secondary pollution, and COD is less than 50mg/L, makes sewage qualified discharge.
Description
Technical field
The invention belongs to technical field of sewage, and in particular to a kind of method of catalytic and oxidative electrolysis technology treated sewage.
Background technology
In recent years with the rapid development of industry, the discharge capacity and discharge species of trade effluent increase year by year, especially stone
Change industry, not only complex in composition but also various pollutants concentration is high in the sewage of discharge.Biochemical treatment process is due to small investment, behaviour
Work is simple, processing cost is low, effect stability, is always that petrifaction sewage handles the method preferentially used.Fractions are simple, toxicity
Qualified discharge after the slightly good sewage of relatively low, biological degradability can be handled by existing biochemical processing, but many biologies
The sewage of degradability difference is but extremely difficult to discharge standard using biochemical process processing.It is increasingly strict with sewage drainage standard, i.e.,
Make to be that the preferable sewage of degradability is only also difficult to reach new discharge standard by biochemical treatment.Therefore, to difficult for biological degradation
The key for being treated as solving petrifaction sewage upgrading qualified discharge of sewage.
Difficult for biological degradation sewage generally existing in each manufacturing enterprise of petrochemical industry, such as recycled water, the reusing sewage of chemistry water processed
Reverse osmosis concentrated water, chemical waste alkaline liquor of device etc..Especially high-sulfur, the exploitation of high-acid crude oil and processing ratio in cumulative year after year,
So that oil product process produces apparent emulsification and the electro-desalting of high salinity drains, if by its together with other sewage into
Enter Treatment stations processing, other than increasing sewage disposal system load, high salinity can also adversely affect biochemical system.State
Interior almost the same to the method for difficult for biological degradation sewage disposal and foreign countries, main method is biological einforcement method, physico-chemical process and advanced
Oxidizing process.Wherein, advanced oxidation water treatment technology emerging in recent years, it has also become the hot spot class of domestic and international water process research field
Topic.The basis of high-level oxidation technology is, with light irradiation, electricity, sound, catalyst, to be combined with oxidant, produced in the reaction sometimes
The extremely strong free radical (such as OH) of raw oxidisability, then turned by adduction, substitution, the electronics between free radical and organic compound
Shifting, scission of link etc. make hardly degraded organic substance oxidative degradation in water body at low toxicity or nontoxic small-molecule substance, or even are directly degraded into
CO2And H2O, close to permineralization.Different according to the selection of oxidant and catalyst, high-level oxidation technology can substantially be divided into following
Several classes, Fenton and Fenton-like method, wet oxidation process, photochemical oxidation method and photocatalytic oxidation, Ozonation and electricity
Solve oxidizing process etc..It is generally believed that electrolytic oxidation is substantially electrode, the anti-of redox couple has occurred on electrolyte interface
It answers, the transfer of charge produces active group OH and carrys out oxidation of organic compounds, keeps harmful substance in waste water enterprising in anode and cathode
Row redox reaction is deposited in electrode surface or precipitation in a cell, or generates gas and escaped from water, useless to reduce
The concentration of harmful substance or noxious material is become nontoxic, low toxicity material in water.Realize the electrochemical reaction of electrolytic acid cleaning oxydation process
Device is electrolytic cell, it is made of two electrodes (first class conductor) and electrolyte (second class conductor), under external power effect
Electrochemical reaction occurs after being passed through electric current by outside.In a cell in order to make to be reacted to possibility, or in order to make reaction with
A certain speed carries out, it is necessary to relevant voltage is added in the activation energy reached on electrolytic cell needed for organic matter degradation, powered up in addition
Pressure is known as slot pressure in practical applications.In general, the hydroxyl free base unit weight generated in the more big then system of slot pressure is more, actually answers
To keep water outlet COD up to standard in, the additional slot pressure as driving force needs to be adjusted according to water quality.But voltage is applied to system
Higher, corresponding energy consumption increases, and should consider and choose voltage appropriate.
Such as Radha uses electrochemical oxidation process (for graphite rod for anode, stainless steel is cathode) to handle textile industry sewage,
COD of sewage, TOC removal rates are 68%；Panizz etc. uses electrochemistry flocculation (iron is anode electrode) and electrochemical oxidation, and (boron is mixed
Miscellaneous diamond is anode) to car-washing sewage degradation treatment, COD of sewage removal rate is 75%, power consumption 0.14kWhm-3.Electricity
It is a kind of effective sewage treatment process to solve oxidizing process, it is easy to operate easily controllable, be bioanalysis and physico-chemical process without
Method analogy.The advantages of electrolytic oxidation technology, is：
(1) during generate OH have strong oxidizing property, can without selectively directly with the organic pollution in sewage it is anti-
It answers, is degraded to carbon dioxide, water and simple organic, do not generate to sewage disposal depth height and pollution, therefore, be referred to as
" environmental-friendly " technology.
(2) reaction condition is mild, can generally carry out at normal temperatures and pressures.
(3) it not only can individually handle, but also can be combined with other treatment technologies, such as the pre-treatment as biochemical process, to carry
The biodegradability of high sewage；Biochemical process post-processing is can also be used as, the processing depth of sewage is improved.
But for complicated component, petroleum chemical enterprise's sewage of wide variety, there is also many problems for the technology, such as：Analyse oxygen, analysis
Hydrogen side reaction, energy consumption are big, still there is different limitations in practical operation and treatment effect.Since the 1980s, with
Increasingly raising of the people to deepening continuously of recognizing of environmental science and to environmental requirement, catalyst is in electrolytic oxidation water treatment technology
Field is applied, and makes catalytic and oxidative electrolysis technology water technology that there is the operation of low slot pressure, depth to reduce the advantage of COD, and is caused
The interest of numerous environmental workers.Such as Fe2+Salt catalyst have lower electrode potential, can relatively low slot depress occur with
Fe3+The reaction of the redox couple of salt generates active group OH and carrys out oxidation of organic compounds, under lower slot pressure and energy consumption
Reach the activation energy of oxidation operation decomposition so that electrochemical reaction has higher reaction rate.In the certain premise of electric field
Under, electrocatalytic reaction rate is larger by the activity influence of catalyst, the generally optional lower metal of electrode potential or its esters.
Catalyst both can be general independent active component, active component can also be supported on carrier, catalyst resin is
Latter situation.
Catalytic and oxidative electrolysis technology technology is used widely not yet in domestic tradition water process, mainly due to exploring the time
Short, basic theory is not also very perfect, along with practical contaminated system complexity is various, make the technology no matter in theoretical research or
All there is the solution that much requires study in practical application.Small part documents work of the catalyst in catalytic and oxidative electrolysis technology
With, such as put into NaCl, FeSO respectively into sewage4、Ni2O3、Na2SO4Deng as additive to improve the conductive capability of sewage,
Variation of the COD removal rates with additive dosage has been investigated, has been also to the secondary of water quality though the removal rate of COD can be improved
Pollution.Such as patent of invention CN1522968A, a kind of multiphase multiple catalyzing electrolysis oxidation sewage treatment method and device are disclosed,
Solid adsorption material is done with activated carbon, graphite, coke, inorganic carrier or resin particle, with graphite, precious metal or ordinary carbon steel
Electrode material is done, using water-soluble iron, aluminium, magnesium or manganese Metal salt as catalyst, using 36V or less safe voltages, constitutes one
Sewage physical-chemical-electrolytic processing apparatus with comprehensive subtractive process, for the pretreatment before biochemistry and the sewage after biochemistry
Advanced treating, but due to not doing special process processing to metal salt catalyst, need continuous supplementation metal salt catalyst, input dirty
So that the tenor in water outlet increases in water, water outlet metal ion secondary pollution is easily formed.
Patent of invention CN101434443B, is related to a kind for the treatment of method and apparatus of oil refining sewerage, and oil refining sewerage is sent into electricity
It solves in catalyst oxidation reactor, with the one or more of metallic cobalt, copper, iron, manganese, nickel, vanadium or titanium for catalyst activity component, with
Active carbon particle forms catalyst granules as carrier, and reactor cathode-anode plate applies 10-36V DC voltages, reactor lower part
Oxygenic aeration facility is set, can the high concentrations saliferous such as the draining of advanced treating oil refining electric desalting apparatus, oil product and liquefied petroleum gas it is mixed
Waste water is closed, processing water outlet reduces metal ion secondary pollution.But electrolytic sewage catalysis oxidation is carried out with the provided information of patent
Experiment, fails to the target for reaching advanced treatment of wastewater.
High concentrated organic wastewater and divalent iron salt are placed in electrolytic cell by patent CN1412124A, utilize tablet reverse-flow type electricity
Solution mode improves ferric iron in the reaction rate of cathode, and then improves electrochemical reduction efficiency, and it is continuous during the reaction plus
Enter hydrogen peroxide, is allowed to constantly react generation ferric iron with reduction gained ferrous iron, makes in solution ferric iron to ferrous iron
Ratio maintain high level always, keep high treatment efficiency.But this method needs to consume a large amount of hydrogen peroxide, and lacks surface area
Larger catalytic carrier equally exists water outlet and metal secondary pollution problem occurs.
Patent CN102557308B discloses a kind of method for treating coal tar sewage, will pass through pretreated coal tar greasy dirt
Water input catalytic wet oxidation unit is handled, and catalytic wet oxidation unit process pressure is 3-9Mpa, and reaction temperature is
200-290 DEG C, catalyst can be noble metal catalyst, metal oxide catalyst and composite metal catalyst, residence time
45min-75min removes COD, ammonia nitrogen, volatile phenol, CN-, sulfide in sewage；Enter after the water outlet of catalytic wet oxidation unit
It is electrolysed advanced oxidation unit, using solid diamond alloy as positive and negative polarities, two pole tensions are the electrolysis advanced oxidation unit
220 volts, electric current 20-80A, by being powered to the two poles of the earth, makes the water electrolysis in sewage, generate the hydroxyl with high oxidative, hydroxyl
Base is by the further oxygenolysis of the pollutants such as remaining COD, ammonia nitrogen, volatile phenol in sewage.Make sewage disposal system effluent index
Reach《Integrated wastewater discharge standard》In primary standard.But process is related to high temperature and pressure operation, and construction investment and operation
Expense is also higher.
Patent CN103721746A discloses a kind of electrolytic oxidation Industrial Wastewater Treatment composite catalyst and its preparation side
Method, it is characterised in that activity component metal ion load is lived on sulfonated polystyrene ion exchange resin carrier, providing a kind of catalysis
Property height, active component good dispersion, the longer catalytic and oxidative electrolysis technology Industrial Wastewater Treatment catalyst of service life and its preparation side
Method, for the processing of catalysis oxidation waste water difficult for biological degradation, waste water COD place to go rate is more than the filler as electrolysis-catalytic oxidation device
75%.But this catalyst carrier for cationic ion exchanger resin in actual sewage processing procedure due to being loaded
Active component meeting is a small amount of to be exchanged with cation in sewage and forms water pollution once again.
In these patents and document, scientific research and business unit are with regard to cell reaction pond shape, electrode material, Catalyst packing side
Formula etc. is developed, or different advanced oxidation modes have been carried out various combinations, to be carried out in terms of sewage disposal
It breaks through, is not done deeper into research in terms of resin catalyst, or use typical catalyst, while increasing the secondary dirt of water quality
Dye.With increasingly strict and Treated sewage reusing the pressing needs of national water standard, conventional biochemical method and physico-chemical process are difficult to reach
To water quality requirement, thus opportunity is brought for catalytic and oxidative electrolysis technology technology.The genesis mechanism of catalytic and oxidative electrolysis technology is furtherd investigate,
Rational modification prior art simultaneously develops new process just as the task of top priority.Chelating ion exchange resin be one kind can with metal from
Son forms the crosslinking functional high molecule material of more co-ordination complexs, in function base there is with non-bonding lone pair electrons O,
N, the atoms such as S, P, As, these atomic energy carry out coordination with the unoccupied orbital of lone pair electrons and metal ion and form coordinate bond, constitute
Rock-steady structure similar with small molecule chelate.Compared with conventional ion exchanger resin, the combination of chelating resin and metal ion
Power is stronger.
Invention content
It is complex in composition, each for handling the object of the present invention is to provide a kind of method of catalytic and oxidative electrolysis technology treated sewage
The high difficult for biological degradation sewage of kind pollutant concentration makes sewage qualified discharge without generating secondary pollution to water quality.
The method of catalytic and oxidative electrolysis technology treated sewage of the present invention is to prepare chelating type catalysis oxidation resin first to urge
Then sewage is added in catalytic and oxidative electrolysis technology reactive tank by agent, chelating type catalysis oxidation resin is added simultaneously in reactive tank
Catalyst, applies voltage between reactive tank cathode-anode plate, and reactive tank lower part is arranged oxygenic aeration facility, passes through COD online analyzer
Wastewater treatment efficiency is observed, stops electrolysis when COD of sewage reaches desired value, obtains target water outlet；
The chelating type catalysis oxidation resin catalyst includes active component and carrier, and carrier is chelating resin.
The chelating resin is N, O dentate chelating resin, N, N dentate chelating resin, O, O dentate chelating tree
One kind in fat, sulfur-bearing chelating resin or phosphorous chelating resin.
The active component is one or more of iron, copper, manganese, chromium, nickel, vanadium or titanium metal ions.
The load capacity of the active constituent is 1-15wt%.
The addition of the chelating type catalysis oxidation resin catalyst is the 10-70% of reactive tank volume.
The voltage is 10-36V.
The chelating type catalysis oxidation resin catalyst is that will have reactive component to load on chelating resin, is obtained
The resin catalyst stablized to performance.Wherein catalyst carrier is mainly that the carrying that active component offer is effective, stable acts on, and one
As require carrier to have suitable pore structure, mechanical strength, temperature stability etc., the active component of catalyst can in electrolytic process
The electrode potential for reducing redox reaction, deeply treating wastewater can be reached and reduce its COD's by pressing and capable of taking in same groove
Purpose.
The catalyst bearing extent, including various types of chelating resins.Chelating ion exchange resin is a kind of
The crosslinking functional high molecule material of more co-ordination complexs can be formed with metal ion, there is with non-bonding orphan in function base
The atoms such as O, N, S, P, As to electronics, these atomic energy form coordinate bond with lone pair electrons and metal ion, constitute and small point
The similar rock-steady structure of sub- chelate.According to the type of coordination atom, N, O dentate chelating resin, including amino can be divided into
Carboxylic acids and its derivative kind；N, N dentates chelating resin, including polyamines class, pyridines, oximes, pyrazoles, imidazoles,
The kinds such as guanidine, schiff base；The kinds such as O, O dentates chelating resin, including hydroxycarboxylic acid, beta-diketon class, phenols；Sulfur-bearing
The kinds such as chelating resin, including thiourea resin, sulfydryl chelating resin, Thiol-amino resin；Phosphorous chelating resin, including phosphonic acids tree
The kinds such as fat, phosphoramidic-resin, α-amido phosphine ester base resin.Its grain size is 10-100 mesh.
The active component of catalyst can reduce the electrode potential of redox reaction in electrolytic process, same groove pressure and
Can take can achieve the purpose that deeply treating wastewater reduces its COD.Active constituent load, be iron, copper, manganese, chromium, nickel,
Independent one or more of mixing of vanadium or titanium metal ions are loaded, and are handed over by ion with arbitrary than mixing when several mixing
It changes, active constituent forms firm complex compound, load capacity 1-15wt% with chelating resin carrier.
The catalytic and oxidative electrolysis technology reactive tank can select different electrodes, cathode-anode plate that can be according to sewage type
Graphite electrode, common stainless steel electrode, lead dioxide electrode, Activated Carbon Fiber Electrodes etc..
Apply voltage between the reactive tank cathode-anode plate, selection voltage can be required according to sewage type and effluent quality
10-36V, operation temperature are 0-80 DEG C.
The present invention is the method by catalytic and oxidative electrolysis technology to the highly concentrated difficult for biological degradation of complex in composition, various pollutants
Sewage is handled, by adding chelate resin catalyst come the various sewage of electrolytic oxidation process, without being generated to water quality
Secondary pollution, technology key are to apply chelate resin catalyst in the sewage treatment process of catalytic and oxidative electrolysis technology.
Compared with prior art, the present invention having the advantages that：
The present invention can be used to handle complex in composition, the highly concentrated difficult for biological degradation sewage of various pollutants, not generate secondary
Pollution, COD are less than 50mg/L, make sewage qualified discharge.
Specific implementation mode
The present invention is described further with reference to embodiments.
Embodiment 1
Polystyrene amido phosphoric acid type resin D402 is that chelating resin containing phosphorous is made first in this, as catalyst carrier
Standby chelate resin catalyst, then carries out electrolytic sewage catalyzed oxidation test with this catalyst.
It is prepared by the first step, resin catalyst
Chelating ion exchange resin D402 manufacture patterns are sodium (Na) type, and water content 50%~60% is used a large amount of first
Soft water cleaning removes the impurity such as floating material；Then for several times with the elution of 6% dilute hydrochloric acid, until leachates pH value reaches 5~6, Na types
Resin acidification changes into hydrogen (H) type；Again with 10% Fe (NO3)3·9H2O salting liquids elute, and carry out active constituent Fe2+Salt is born
It carries；Wait for that ion exchange finishes, with about 5 times of volume water wash resins, to remove free metal salt.By aforesaid operations method,
Obtain Fe2+The chelate resin catalyst of salt is fitted into beaker for use.
Second step, electrolytic sewage catalyzed oxidation test
The Fe prepared using above method2+Salt chelate resin is as catalyst, applied to through bioanalysis pretreatment COD
Certain petrochemical refining's electro-desalting waste water of 180mg/L carries out catalytic and oxidative electrolysis technology, and pH value is adjusted to 3.5.Wherein electrolysis unit volume is
5L, electrode are graphite electrode, and response voltage 15V, kinetic current 0.8A, effluent flow rate 2L/h, the air amount of blasting 80ml/min are urged
Agent loadings are the 30% of electrolytic cell volume.Water outlet non-metallic ion detects, is observed at sewage by COD online analyzer
Effect is managed, COD is as shown in table 1.
Embodiment 2
Compared with Example 1, difference be response voltage 25V, effluent flow rate 3L/h, the air amount of blasting 100ml/min,
Loaded catalyst is the 20% of electrolytic cell volume, remaining is identical as 1 experimental condition of embodiment.It is discharged non-metallic ion detection
Go out, COD is as shown in table 1.
Embodiment 3
Compared with Example 1, difference is with 10% Cu (NO3)2·3H2O salting liquids elute, and carry out active constituent Cu2+
The load of salt, obtains Cu2+The chelate resin catalyst of salt is fitted into beaker for use.
The Cu prepared using above method2+Salt chelate resin is as catalyst, and compared with Example 1, difference is anti-
It is the 40% of electrolytic cell volume to answer voltage 10V, loaded catalyst, remaining is identical as 1 experimental condition of embodiment.Water outlet is without metal
Ion detection goes out, and COD is as shown in table 1.
Embodiment 4
Compared with Example 3, it is 36V that difference, which is response voltage, and effluent flow rate 3L/h, the air amount of blasting is 100ml/
Min, loaded catalyst are the 10% of electrolytic cell volume, remaining is identical as 3 experimental condition of embodiment.It is discharged non-metallic ion inspection
It measures, COD is as shown in table 1.
Embodiment 5
Polystyrene amido diethyl acid type resin D401 is N, O dentate chelating resin, in this, as catalyst carrier,
Fe2+Salt, Cr3+Salt is that active component prepares chelate resin catalyst, then carries out electrolytic sewage catalysis oxidation with this catalyst
Experiment.Resin catalyst preparation process is same as Example 1, and condition same as Example 1 carries out catalytic and oxidative electrolysis technology experiment.
Water outlet non-metallic ion detects that COD is as shown in table 1.
Embodiment 6
Compared with Example 5, difference Cu2+Salt, Ti2+Salt is that active component prepares chelate resin catalyst, is reacted
Voltage is 20V, and loaded catalyst is the 60% of electrolytic cell volume, remaining is identical as 5 experimental condition of embodiment.Water outlet is without metal
Ion detection goes out, and COD is as shown in table 1.
Embodiment 7
Polystyrene aminodithioformic acid type resin D403 is sulfur-bearing chelating resin chelating resin, in this, as catalyst
Carrier, Cu2+Salt is that active component prepares chelate resin catalyst, remaining condition same as Example 6 carries out electrolytic catalysis oxygen
Change experiment.Water outlet non-metallic ion detects that COD is as shown in table 1.
Embodiment 8
Water oxygen acid-urea-formaldehyde resins are O, O dentate chelating resin, in this, as catalyst carrier, Cu2+Salt, Ni2+
Salt, V5+Salt is that active component prepares chelate resin catalyst, and resin catalyst preparation process is same as Example 1, then uses
This catalyst carries out electrolytic sewage catalyzed oxidation test.
Using chelate resin prepared by above method as catalyst, response voltage 10V, effluent flow rate 2L/h are empty
Tympanites enters amount 100ml/min, and loaded catalyst is the 50% of electrolytic cell volume, remaining is identical as 1 experimental condition of embodiment.Go out
Water non-metallic ion detects that COD is as shown in table 1.
Embodiment 9
Amidoxime group polyacrylonitrile-divinylbenzene resin is N, N dentate chelating resin, is carried in this, as catalyst
Body, Ni2+Salt, Mn2+Salt is that active component prepares chelate resin catalyst, resin catalyst preparation process and 1 phase of embodiment
Together, then electrolytic sewage catalyzed oxidation test is carried out with this catalyst.
The chelate resin prepared using above method is as catalyst, compared with Example 6, response voltage 36V, catalysis
Agent loadings are the 70% of electrolytic cell volume, remaining is identical as 6 experimental condition of embodiment.It is discharged non-metallic ion to detect, COD
As shown in table 1.
Comparative example 1
Compared with Example 1, difference is to be added without resin catalyst, remaining is identical as 1 experimental condition of embodiment.Sewage
COD situations of change are as shown in table 1.
Comparative example 2
Compared with Example 1, difference is to be added without resin catalyst, improves electrode voltage to 36V, the air amount of blasting carries
Up to 100ml/min, other experimental conditions are constant, carry out sewage disposal.COD of sewage situation of change is as shown in table 1.
Comparative example 3
Compared with Example 1, difference is to be added without resin catalyst, improves electrode voltage to 36V, the air amount of blasting carries
Up to 100ml/min, effluent flow rate are down to 1L/h, and other experimental conditions are constant, carry out sewage disposal.COD of sewage situation of change
As shown in table 1.
Comparative example 4
Compared with Example 1, difference is to be added only through pickling transformation and without the D402 resins that active component loads,
Its experimental condition is constant, carries out sewage disposal.COD of sewage situation of change is as shown in table 1.
Comparative example 5
Compared with Example 1, difference be added only through pickling transformation and without the D402 resins that active component loads, and
Electrode voltage is improved to 36V, the air amount of blasting is improved to 100ml/min, and effluent flow rate is down to 1L/h, and resin loadings are electrolysis
The 70% of slot volume, other experimental conditions are constant, carry out sewage disposal.COD of sewage situation of change is as shown in table 1.
Comparative example 6
Compared with Example 1, using activated carbon as catalyst carrier, active constituent Fe is carried out2+The load of salt, remaining and implementation
1 experimental condition of example is identical.Water outlet has trace iron ions to detect, COD is as shown in table 1.
Embodiment and comparative example main experimental condition and COD of sewage situation of change are shown in Table 1, water outlet COD desired values be less than
50mg/L。
1 experimental condition of table and COD of sewage situation of change
As can be seen from the table, compared with common electrolyzing sewage technology, chelate resin catalyst is applied in sewage electricity
It solves in catalytic oxidation process for treating, COD of sewage can be greatly lowered under, the relatively low operating condition of slot pressure higher in waste water flow velocity, make
Sewage qualified discharge after must handling.
Claims (4)
1. a kind of method of catalytic and oxidative electrolysis technology treated sewage, it is characterised in that prepare chelating type catalysis oxidation resin catalysis first
Then sewage is added in catalytic and oxidative electrolysis technology reactive tank by agent, chelating type catalysis oxidation resin, which is added, simultaneously in reactive tank urges
Agent, applies voltage between reactive tank cathode-anode plate, and reactive tank lower part is arranged oxygenic aeration facility, is seen by COD online analyzer
Wastewater treatment efficiency is examined, stops electrolysis when COD of sewage reaches desired value, obtains target water outlet；
The chelating type catalysis oxidation resin catalyst includes active component and carrier, and carrier is chelating resin；
The chelating resin is N, O dentate chelating resin, N, N dentate chelating resin, and O, O dentate chelating resin contain
One kind in sulphur chelating resin or phosphorous chelating resin；
The active component is one or more of iron, copper, manganese, chromium, nickel, vanadium or titanium metal ions.
2. the method for catalytic and oxidative electrolysis technology treated sewage according to claim 1, it is characterised in that the active constituent
Load capacity be 1-15wt%.
3. the method for catalytic and oxidative electrolysis technology treated sewage according to claim 1, it is characterised in that the chelating type is urged
The addition for changing resene catalyst is the 10-70% of reactive tank volume.
4. the method for catalytic and oxidative electrolysis technology treated sewage according to claim 1, it is characterised in that the voltage is 10-
36V。
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| CN107774326B (en) * | 2016-08-27 | 2020-09-08 | 中国石油化工股份有限公司 | Fluidized bed electrolytic catalyst |
| CN107774328B (en) * | 2016-08-27 | 2020-07-10 | 中国石油化工股份有限公司 | Electrolytic catalyst |
| CN107774327B (en) * | 2016-08-27 | 2020-07-10 | 中国石油化工股份有限公司 | Sewage electrolysis catalyst and preparation method thereof |
| CN109317209A (en) * | 2018-09-29 | 2019-02-12 | 浙江工业大学 | Chelate resin-based electro-Fenton catalyst and preparation method and application thereof |
| CN109650496A (en) * | 2019-01-28 | 2019-04-19 | 江苏融汇环境工程有限公司 | The method of electrocatalytic oxidation processing rubber and plastic waste water |
| CN114409129B (en) * | 2022-01-10 | 2023-04-04 | 达高工业技术研究院(广州)有限公司 | Method for treating ammonia nitrogen in waste liquid and simultaneously recovering heavy metal |
| CN115709101A (en) * | 2022-11-09 | 2023-02-24 | 西南科技大学 | Preparation method and application of resin photocatalyst |
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