CN209468160U - Reduce the electrocatalytic oxidation wastewater treatment equipment that solid waste generates - Google Patents
Reduce the electrocatalytic oxidation wastewater treatment equipment that solid waste generates Download PDFInfo
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- CN209468160U CN209468160U CN201821862103.9U CN201821862103U CN209468160U CN 209468160 U CN209468160 U CN 209468160U CN 201821862103 U CN201821862103 U CN 201821862103U CN 209468160 U CN209468160 U CN 209468160U
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- electrocatalytic oxidation
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- coagulative precipitation
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Abstract
The utility model discloses a kind of electrocatalytic oxidation wastewater treatment equipments that reduction solid waste generates, including electrocatalytic oxidation pond, Fenton's reaction pond, coagulative precipitation tank and iron cement dissolving tank；Plate containing multiple electrodes is set in electrocatalytic oxidation pond, is provided with folded plate between adjacent electrode plate, forms Gulfstream channel between folded plate and electrode plate, its water inlet end of Fenton's reaction pond connects electrocatalytic oxidation pond；Coagulative precipitation tank includes that the coagulation area of bottom connection and settling zone, Fenton's reaction pond are connected to the coagulation area of coagulative precipitation tank, and lye is equipped with above coagulation area and adds mouth, the settling zone bottom of coagulative precipitation tank is connected to iron cement dissolving tank；Filtered fluid is back to electrocatalytic oxidation pond by the iron cement dissolving tank.The pulling flow type method of operation of use can make waste water is sufficiently effective to contact with catalyst, to play the effect of catalyst to the full extent, enhance the treatment effect of waste water；Realize Fe3+It recycles, overcomes in conventional Fenton process treatment process and generate a large amount of solid wastes.
Description
Technical field
The utility model relates to technical field of waste water processing, and in particular to a kind of electrocatalytic oxidation for reducing solid waste generation is useless
Water treatment facilities
Background technique
Electrocatalytic oxidation waste water treatment process is mainly anodic oxidation reactions, organic pollutant anode by direct oxidation and
Indirect oxidation.Anode in electrolytic cell is the core of Electrocatalytic Oxidation, and the most common anode is using titanium as matrix, on its surface
Coated metal oxide (MOx) catalyst anode, cause to change size, referred to as dimensional stable anode, DSA since it is not easy to be corroded
Anode.When applying certain potentials to anode, H2O or OH- discharge first on anode and generate the hydroxyl radical free radical of physics ADSORPTION STATE
(·OH)。
Fenton (Fenton) reagent method is to add Fenton reagent in an acidic solution: hydrogen peroxide (H2O2) and ferrous iron from
Son (Fe2+), Fenton reaction occurs when the two is in contact.
Fenton process is allowed to be difficult to be widely applied there are two fatal problems in practical engineering application.Firstly, Fenton process needs
Fe is added in scene2+And H2O2, reagent consumption amount is big, and processing cost is high, generates a large amount of ferric ions during Fenton's reaction, most
Become eventually adsorption the iron oxide of organic matter, become pollution environment solid waste (dangerous waste).
Utility model content
The technical problem to be solved by the present invention is to provide the wastewater treatment equipments that can reduce solid waste generation.
In order to solve the above-mentioned technical problem, a kind of the technical solution adopted in the utility model are as follows: electricity for reducing solid waste and generating
Catalysis oxidation wastewater treatment equipment, including electrocatalytic oxidation pond, Fenton's reaction pond, coagulative precipitation tank and iron cement dissolving tank；Institute
It states and is provided with inlet and outlet on electrocatalytic oxidation pond, plate containing multiple electrodes is set in pond, is set between adjacent electrode plate
It is equipped with folded plate, there are gaps between the bottom of electrode plate and the bottom of pond in electrocatalytic oxidation pond, and the upper end height of folded plate is lower than electricity
The overhead height of pole plate forms Gulfstream channel, and electrocatalytic oxidation pond is divided into multiple reactive tanks between folded plate and electrode plate, electricity
Pole plate is by anode, the arrangement of cathode alternate intervals；Blender is set in the Fenton's reaction pond, and water inlet end connects electrocatalytic oxidation
Pond；Coagulative precipitation tank includes that the coagulation area of bottom connection and settling zone, Fenton's reaction pond are connected to the coagulation area of coagulative precipitation tank,
It is equipped with lye above coagulation area and adds mouth, blender is set in coagulation area, is equipped with above settling zone and is discharged weir notch, below water outlet weir notch
Equipped with precipitating mechanism；The settling zone bottom of coagulative precipitation tank is connected to iron cement dissolving tank；Blender is set in the iron cement dissolving tank,
It is equipped with filter in exit, and exports and filtered fluid is back to by electrocatalytic oxidation pond by circulating pump.
Further, the electrocatalytic oxidation pond further includes an electrode inverted device, for giving electrode Plate supplying direct current
Electricity, and electrode inverted device can switch the polarity of direct current.
Further, the folded plate surface is additionally provided with cellular electrocatalytic oxidation auxiliary agent.
Further, the top of the folded plate and electrode plate bottom are bent to water outlet；Wherein in electrocatalytic oxidation
Change setting spray piping at the top of pond and is used for cleaning electrode plate.
From above-mentioned technical proposal it can be seen that the utility model has the advantage that the pulling flow type method of operation of use can make
Waste water is sufficiently effective to be contacted with catalyst column, to play the effect of catalyst to the full extent, enhances the place of waste water
Manage effect；The pole inversing device of present apparatus setting, plays the role of automatic cleaning electrode, to reduce pole plate in the process of running
Corrosion losses extend electrode plate service life, and avoid system at regular intervals and unpick and wash brought other problems during electrode plate；
Realize Fe3+It recycles, overcomes the drawbacks of generating a large amount of solid wastes (dangerous waste) pollution environment in conventional Fenton process treatment process.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
Specific embodiment of the present utility model is illustrated below in conjunction with attached drawing.
As shown in Figure 1, the electrocatalytic oxidation wastewater treatment equipment that the reduction solid waste of the utility model generates, including electro-catalysis
Oxidation pond 1, Fenton's reaction pond 2, coagulative precipitation tank 3 and iron cement dissolving tank 4；Water inlet is provided on the electrocatalytic oxidation pond
17 and water outlet 18, plate containing multiple electrodes 13 is set in pond, is provided with folded plate 14, the bottom of electrode plate 13 between adjacent electrode plate
There are gap between portion and the bottom of pond in electrocatalytic oxidation pond, the upper end height of folded plate is lower than the overhead height of electrode plate, folded plate
Gulfstream channel is formed between electrode plate, and electrocatalytic oxidation pond is divided into multiple reactive tanks, and electrode plate is by anode, cathode alternating
It is alternatively arranged, the top and electrode plate bottom of folded plate are bent to water outlet, reduce water flow dead angle.Wherein in electrocatalytic oxidation
Change setting spray piping at the top of pond and is used for cleaning electrode plate.
The folded plate surface is additionally provided with cellular electrocatalytic oxidation auxiliary agent.The electrocatalytic oxidation auxiliary agent is mainly by three
It is grouped as, i.e. active component, carrier and co-catalyst, wherein active component is the mixture of Ni, modified active aluminium, Ti, is carried
Body is γ-Al2O3, co-catalyst is active carbon.It can speed up C-C, C- in waste water under modified active aluminium and Ni, Ti collective effect
N, the speed that the chemical bonds such as C-S are decomposed under conditions of electrolysis, when these chemical bonds are by hydrogenolysis under the action of electroxidation
After Hydrocarbon Organic, the COD of waste waterCrIt has all obtained greatly reducing with toxicity, biodegradability is greatly improved.Electricity is urged
Changing oxidation pond further includes an electrode inverted device 11, and for giving electrode Plate supplying direct current, and electrode inverted device 11 can be with
Switch the polarity of direct current.Provided with motor inverted device, when device continuous operation for a period of time after can automatically switch to down
Pole, so that original anode be made to become cathode, original cathode becomes anode, spray equipment, pole is cooperated under the action of electric current
Pollutant on plate etc. then can Automatic-falling into the waste water of the system, small organic molecule or direct mine are melted by electrocatalytic oxidation
Change, to achieve the purpose that clean pole plate.
Blender is set in the Fenton's reaction pond, and water inlet end connects electrocatalytic oxidation pond；Coagulative precipitation tank includes bottom
The coagulation area 31 and settling zone 33, Fenton's reaction pond of portion's connection are connected to the coagulation area 31 of coagulative precipitation tank, are set above coagulation area
There is lye to add mouth, blender is set in coagulation area, water outlet weir notch 32 is equipped with above settling zone 33, is equipped with precipitating below water outlet weir notch
Mechanism；The settling zone bottom of coagulative precipitation tank is connected to iron cement dissolving tank 4；Blender is set in the iron cement dissolving tank 4, is being exported
Place is equipped with filter 41, and exports and filtered fluid is back to electrocatalytic oxidation pond by circulating pump.
Coagulative precipitation tank major function is precipitation and separation ferric ion.Into in the waste water in pond contain a large amount of Fe3+
Ion adds mouth from lye and alkali is added, be allowed to be converted into solid phase iron hydroxide, referred to as to separate it from solution
For iron cement.It is reacted are as follows: Fe3++3OH-→Fe(OH)3.When containing Fe3+After the waste water of ion enters coagulation area, NaOH solution is with one
Constant current speed is synchronous to be added coagulation tank, starts blender, carries out coagulating.To improve coagulation effect, add simultaneously in lye
Enter the micro additive that iron cement sedimentation can be improved.
The major function of iron cement dissolving tank is that the solid-state ferric iron that will obtain after coagulating sedimentation is molten by acid, at Fe3+Ion
Solution is transported to electrocatalytic oxidation room, is reduced into Fe2+, it is recycled, realizes to generate without solid waste and be discharged with iron cement.Iron cement dissolution
Pond is connected with the bottom mud mouth of coagulative precipitation tank, and iron cement enters iron cement dissolving tank, and acid solution is added simultaneously with certain flow rate is synchronous
Iron cement dissolving tank starts blender, and iron cement occurs in slot and reacts with the neutralization of acid dissolution, releases Fe3+Ion.
Claims (4)
1. a kind of electrocatalytic oxidation wastewater treatment equipment for reducing solid waste and generating, it is characterised in that: including electrocatalytic oxidation pond, sweet smell
Pause reaction tank, coagulative precipitation tank and iron cement dissolving tank；Inlet and outlet are provided on the electrocatalytic oxidation pond, in pond
Plate containing multiple electrodes is set, folded plate, the bottom of electrode plate and the bottom of pond in electrocatalytic oxidation pond are provided between adjacent electrode plate
Between there are gap, the upper end height of folded plate is lower than the overhead height of electrode plate, and it is logical that Gulfstream is formed between folded plate and electrode plate
Road, and electrocatalytic oxidation pond is divided into multiple reactive tanks, electrode plate is by anode, the arrangement of cathode alternate intervals；The Fenton's reaction
Blender is set in pond, and water inlet end connects electrocatalytic oxidation pond；Coagulative precipitation tank includes coagulation area and the precipitating of bottom connection
Area, Fenton's reaction pond are connected to the coagulation area of coagulative precipitation tank, and lye is equipped with above coagulation area and adds mouth, stirring is set in coagulation area
Device, settling zone top are equipped with water outlet weir notch, and water outlet weir notch lower section is equipped with precipitating mechanism；The settling zone bottom of coagulative precipitation tank and iron
The connection of mud dissolving tank；Set blender in the iron cement dissolving tank, exit be equipped with filter, and export by circulating pump incited somebody to action
Filtrate is back to electrocatalytic oxidation pond.
2. the electrocatalytic oxidation wastewater treatment equipment according to claim 1 for reducing solid waste and generating, it is characterised in that: described
Electrocatalytic oxidation pond further includes an electrode inverted device, and for giving electrode Plate supplying direct current, and electrode inverted device can be with
Switch the polarity of direct current.
3. the electrocatalytic oxidation wastewater treatment equipment according to claim 1 or 2 for reducing solid waste and generating, feature exist
In: the folded plate surface is additionally provided with cellular electrocatalytic oxidation auxiliary agent.
4. the electrocatalytic oxidation wastewater treatment equipment according to claim 1 for reducing solid waste and generating, it is characterised in that: described
The top and electrode plate bottom of folded plate are bent to water outlet；Spray piping is wherein arranged at the top of electrocatalytic oxidation pond to use
In cleaning electrode plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821862103.9U CN209468160U (en) | 2018-11-13 | 2018-11-13 | Reduce the electrocatalytic oxidation wastewater treatment equipment that solid waste generates |
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|---|---|---|---|
| CN201821862103.9U CN209468160U (en) | 2018-11-13 | 2018-11-13 | Reduce the electrocatalytic oxidation wastewater treatment equipment that solid waste generates |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112390428A (en) * | 2020-11-13 | 2021-02-23 | 泉州南京大学环保产业研究院 | Landfill leachate MBR effluent treatment method |
| CN117105350A (en) * | 2023-08-30 | 2023-11-24 | 山东国泰大成科技有限公司 | Acrylonitrile sewage combined treatment method based on electrolytic catalysis and strong oxidation |
-
2018
- 2018-11-13 CN CN201821862103.9U patent/CN209468160U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112390428A (en) * | 2020-11-13 | 2021-02-23 | 泉州南京大学环保产业研究院 | Landfill leachate MBR effluent treatment method |
| CN117105350A (en) * | 2023-08-30 | 2023-11-24 | 山东国泰大成科技有限公司 | Acrylonitrile sewage combined treatment method based on electrolytic catalysis and strong oxidation |
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