CN203419777U - Electrochemical device for water treatment - Google Patents

Electrochemical device for water treatment Download PDF

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Publication number
CN203419777U
CN203419777U CN201320499891.0U CN201320499891U CN203419777U CN 203419777 U CN203419777 U CN 203419777U CN 201320499891 U CN201320499891 U CN 201320499891U CN 203419777 U CN203419777 U CN 203419777U
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China
Prior art keywords
anode
connects
catalytic oxidation
electricity flocculation
negative electrode
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Expired - Lifetime
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CN201320499891.0U
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Chinese (zh)
Inventor
杜琳
郭小春
江丽
向启贵
刘春艳
郭世月
王兴睿
易畅
陆林峰
徐炳科
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Petrochina Co Ltd
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Petrochina Co Ltd
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  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

An electrochemical device for water treatment belongs to the technical field of electrochemistry. The two-way pulse power supply device is connected with the electric control device, the aeration device and the electric control device are connected with the electrochemical reaction device, and the electrochemical reaction device is connected with the separation device; the upper part of one side of a box body of the electrochemical reaction device is connected with a water outlet, the lower part of one side of the box body is connected with a gas inlet, the lower part of the other side of the box body is connected with a water inlet, one side of a first electrocatalytic oxidation cathode is connected with an electrocatalytic oxidation anode, and the other side of the electrocatalytic oxidation anode is connected with a second electrocatalytic oxidation cathode; the first electric flocculation cathode is connected to the other side of the box body, one side of the first electric flocculation cathode is connected with the electric flocculation anode, and the other side of the electric flocculation anode is connected with the second electric flocculation cathode. The utility model discloses can realize the intermittent type static state of sewage and handle and continuous dynamic state, can reduce power consumption, reduce electric power running cost, the effectual electrode passivation that prevents simultaneously, the water treatment effect obtains the reinforcing.

Description

A kind of electrochemical appliance for water treatment
Technical field
The utility model relates to a kind of electrochemical appliance for water treatment, belongs to technical field of electrochemistry.
Background technology
Shale gas fracturing outlet liquid, oil-gas field sewage, the complicated components such as petrochemical complex class sewage, toxic substance content is high, all needs just can discharge or reuse through certain processing.
In numerous sewage water treatment methods, electrochemical techniques are because floor space is little, and operative intelligence produces the features such as secondary pollution is little and in water treatment field, is able to gradually promotion and application.Wherein electricity flocculation and catalytic oxidation are the electrochemical process for treating of comparatively commonly using.
Electricity flocculation produces the settlement action of throw out by anode dissolution, negative electrode produces the air supporting effect of micro-bubble, and the redoxomorphism of the nascent oxygen/hydrogen in statu nascendi of generation is removed pollutent during system energising.Especially for waste water from dyestuff, electroplating wastewater etc. have good decolouring and remove suspended substance, the effect of metal ion, but the removal for organic pollutant has certain limitation, and due to the normal direct supply that adopts, electrode passivation phenomenon is comparatively serious, has increased equipment energy consumption and processing cost.
Catalytic oxidation is the direct oxidation reductive action on electrode by pollutent, and the ozone generating in system, hydroxyl radical free radical, and the indirect oxidation effect of reactive chlorine isoreactivity species, is degraded organic pollutant.Two dimension electrochemical process and three-dimensional electrochemical method all have certain application in actual water treatment.Electrocatalytic oxidation method is more effective to organic processing, but suspended substance in system, and the existence of foreign ion etc. all can affect the effect of catalytic oxidation.
Adopt two pulse power supply system, and electricity flocculation and oxidation united with lime-plaster use be have not been reported.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of electrochemical appliance for water treatment, can utilize electricity flocculation and two processes of catalytic oxidation simultaneously, have the advantage of electricity flocculation and catalytic oxidation concurrently, simultaneously owing to possessing dual power supply, make the mode of electricity flocculation and catalytic oxidation coupling also become various, produce and act synergistically simultaneously, make the effect of disposing of sewage more remarkable.
For an electrochemical appliance for water treatment, two-way pulse power electric supply installation connects electric control gear, and aerating apparatus is connected electrochemical reaction appts with electric control gear, and electrochemical reaction appts connects tripping device;
One side top of the casing of electrochemical reaction appts connects water outlet, one side-lower of casing connects inlet mouth, the opposite side below of casing connects water-in, one side of the first catalytic oxidation negative electrode connects catalytic oxidation anode, and the opposite side of catalytic oxidation anode connects the second catalytic oxidation negative electrode; The first electricity flocculation negative electrode is connected to the opposite side of casing, and a side of the first electricity flocculation negative electrode connects electricity flocculation anode, and the opposite side of electricity flocculation anode connects the second electricity flocculation negative electrode.
The pulse power of two-way pulse power electric supply installation, and possess the function that positive and negative electrode circulation exchanges, can reduce power consumption, reduce operation power cost, simultaneously effectively preventing electrode passivation; Can realize according to demand different powering modes: electricity flocculation powering mode, catalytic oxidation powering mode, associating powering mode;
Power supply in electrical control system implement device, turnover water pump, the unlatching of aeration pump etc. and switching, thus realize the coordination of complete assembly, stable, operation automatically;
After tripping device is placed in electrochemical reaction appts, for electrochemical appliance, go out the separated of water suspension and water body, there is sea cock and valve tripping device lower end, is convenient to realize intermittently static treatment, and is convenient to be connected with the pipeline of follow-up other technologies; Tripping device can use strainer, sorbent material, and whizzer,
Electrochemical reaction appts comprises water-in, water outlet, aeration tube, solubility electrode, catalyzed oxidation electrode;
Above-mentioned electrode can adopt tabular, netted, bar-shaped, a kind of in tubulose;
The anode of electricity flocculation electrode can be selected Al, Fe, Zn, Cu, a kind of in Ti or stainless steel;
The negative electrode of electricity flocculation electrode can be selected Al, Fe, Zn, Cu, a kind of in Ti or stainless steel;
In electricity flocculation system, negative electrode quantity is than anode many one;
The anode of electrocatalytic oxidation polarizing electrode can be selected graphite, diamond, a kind of in titanium-based metal oxide electrode;
The negative electrode of electrocatalytic oxidation polarizing electrode can be selected Al, Fe, Zn, Cu, a kind of in Ti or stainless steel;
In order more to make full use of anode, in catalytic oxidation system, negative electrode quantity is than anode many one;
Interelectrode distance is adjustable, can increase and decrease as required electrode, can change the ratio of electricity flocculation electrode and catalytic oxidation number of poles simultaneously, to reach best associated treatment effect;
Aerating system, in electrochemical reaction appts bottom, can destroy suspended substance or the organic pollutant stability in water, or a kind of strong oxidizer is provided, and improves soil removability, and blasting gas is air, oxygen, a kind of in ozone.
An electrochemical method for water treatment, contains following steps;
Select electricity flocculation mode of coupling together with catalytic oxidation to process; Open the power switch of electricity flocculation and catalytic oxidation simultaneously, water body processed,
Select first electric flocculation treatment, then the pattern of carrying out catalytic oxidation processing; First open the power-supply system of electricity flocculation, after processing certain hour, close electricity flocculation power switch, open the pump of separator, through the filtration of separation system, water is back in electrochemical appliance, open catalytic oxidation power supply, water body is carried out to catalytic oxidation processing;
For enhancement process effect, in electrochemical appliance, can add filler, filler can be gac, ceramic particle, zeolite, the mixture of one or more of pure aluminium silicate etc.; Filler adds fashionable available plastic wire parcel, to prevent the generation of short circuit;
At aeration tube interface, connect ozonizer, blast ozone, increase the strong oxidizer in water body, can act synergistically with electric flocculation system, enhancement process effect simultaneously;
Static treatment pattern intermittently, sewage stops after portion of time in electrochemical reaction appts, and through the centrifugation of separator, water is emitted by the sea cock and valve of separator lower end, carries out subsequent disposal or water is utilized;
Continuous dynamichandling pattern is opened the water pump of electrochemical reaction appts and separator simultaneously, selects corresponding electrochemical treatment pattern, sewage is realized continuously in whole device and moved dynamically, until water outlet reaches corresponding requirements.
The utility model has the advantages that the static treatment and continuous dynamichandling at intermittence that can realize sewage, can reduce power consumption, reduce operation power cost, effectively prevent electrode passivation simultaneously.Owing to realizing the combined utilization of electricity flocculation with catalytic oxidation, make the two aspect water treatment, show synergy, water treatment effect is enhanced.
Accompanying drawing explanation
When considered in conjunction with the accompanying drawings, by the detailed description with reference to below, can more completely understand better the utility model and easily learn wherein many advantages of following, but accompanying drawing described herein is used to provide further understanding of the present utility model, form a part of the present utility model, schematic description and description of the present utility model is used for explaining the utility model, do not form improper restriction of the present utility model, as schemed wherein:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is structural representation of the present utility model.
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Embodiment
Obviously, the many modifications and variations that those skilled in the art do based on aim of the present utility model belong to protection domain of the present utility model.
Embodiment 1: as shown in Figure 1 and Figure 2, a kind of electrochemical appliance for water treatment, one side top of casing connects water outlet 1, one side-lower of casing connects inlet mouth 3, the opposite side below of casing connects water-in 2, one side of the first catalytic oxidation negative electrode 5 connects catalytic oxidation anode 4, and the opposite side of catalytic oxidation anode 4 connects the second catalytic oxidation negative electrode 6; The first electricity flocculation negative electrode 8 is connected to the opposite side of casing, and a side of the first electricity flocculation negative electrode 8 connects electricity flocculation anode 7, and the opposite side of electricity flocculation anode 7 connects the second electricity flocculation negative electrode 9.
An electrochemical method for water treatment, contains following steps;
Select electricity flocculation mode of coupling together with catalytic oxidation to process; Open the power switch of electricity flocculation and catalytic oxidation simultaneously, water body processed,
Select first electric flocculation treatment, then the pattern of carrying out catalytic oxidation processing; First open the power-supply system of electricity flocculation, after processing certain hour, close electricity flocculation power switch, open the pump of separator, through the filtration of separation system, water is back in electrochemical appliance, open catalytic oxidation power supply, water body is carried out to catalytic oxidation processing;
For enhancement process effect, in electrochemical appliance, can add filler, filler can be gac, ceramic particle, zeolite, the mixture of one or more of pure aluminium silicate etc.; Filler adds fashionable available plastic wire parcel, to prevent the generation of short circuit;
For further reinforced effects, at aeration tube interface, connect ozonizer, blast ozone, increase the strong oxidizer in water body, can act synergistically with electric flocculation system simultaneously, enhancement process effect;
Static treatment pattern intermittently, sewage stops after portion of time in electrochemical reaction appts, and through the centrifugation of separator, water is emitted by the sea cock and valve of separator lower end, carries out subsequent disposal or water is utilized;
Continuous dynamichandling pattern is opened the water pump of electrochemical reaction appts and separator simultaneously, selects corresponding electrochemical treatment pattern, sewage is realized continuously in whole device and moved dynamically, until water outlet reaches corresponding requirements.
Embodiment 2: as shown in Figure 1 and Figure 2, a kind of electrochemical appliance for water treatment, this device is unenclosed construction, its device schema is as shown in Figure 1.Comprise two-way pulse power power supply system, electrical control system, electrochemical reaction appts, aerating apparatus, tripping device.Can realize intermittently static treatment and continuously dynamichandling.
This system is selected the pulse power, and possesses the function of positive and negative electrode circulation exchange, can reduce power consumption, reduces operation power cost, simultaneously effectively preventing electrode passivation.Can realize according to demand different powering modes: electricity flocculation powering mode, catalytic oxidation powering mode, associating powering mode.
Power supply in electrical control system implement device, turnover water pump, the unlatching of aeration pump etc. and switching, thus realize the coordination of complete assembly, stable, operation automatically
After tripping device is placed in electrochemical reaction appts, for electrochemical appliance, go out the separated of water suspension and water body, there is sea cock and valve tripping device lower end, is convenient to realize intermittently static treatment, and is convenient to be connected with the pipeline of follow-up other technologies.Tripping device can use strainer, sorbent material, and whizzer,
Electrochemical reaction appts as shown in Figure 2, comprises water-in, water outlet, aeration tube, solubility electrode, catalyzed oxidation electrode.
Above-mentioned electrode can adopt tabular, netted, bar-shaped, a kind of in tubulose.
The anode of electricity flocculation electrode can be selected Al, Fe, Zn, Cu, a kind of in Ti or stainless steel
The negative electrode of electricity flocculation electrode can be selected Al, Fe, Zn, Cu, a kind of in Ti or stainless steel
In order more to make full use of anode, in electric flocculation system, negative electrode quantity is than anode many one
The anode of electrocatalytic oxidation polarizing electrode can be selected graphite, diamond, a kind of in titanium-based metal oxide electrode
The negative electrode of electrocatalytic oxidation polarizing electrode can be selected Al, Fe, Zn, Cu, a kind of in Ti or stainless steel
In order more to make full use of anode, in catalytic oxidation system, negative electrode quantity is than anode many one
Interelectrode distance is adjustable, can increase and decrease as required electrode, can change the ratio of electricity flocculation electrode and catalytic oxidation number of poles simultaneously, to reach best associated treatment effect.
Aerating system, in electrochemical reaction appts bottom, can destroy suspended substance or the organic pollutant stability in water, or a kind of strong oxidizer is provided, and improves soil removability, and blasting gas is air, oxygen, a kind of in ozone.
As mentioned above, embodiment of the present utility model is explained, but as long as not departing from fact inventive point of the present utility model and effect can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, within such variation is also all included in protection domain of the present utility model.

Claims (1)

1. for an electrochemical appliance for water treatment, it is characterized in that two-way pulse power electric supply installation connects electric control gear, aerating apparatus is connected electrochemical reaction appts with electric control gear, and electrochemical reaction appts connects tripping device; One side top of the casing of electrochemical reaction appts connects water outlet, one side-lower of casing connects inlet mouth, the opposite side below of casing connects water-in, one side of the first catalytic oxidation negative electrode connects catalytic oxidation anode, and the opposite side of catalytic oxidation anode connects the second catalytic oxidation negative electrode; The first electricity flocculation negative electrode is connected to the opposite side of casing, and a side of the first electricity flocculation negative electrode connects electricity flocculation anode, and the opposite side of electricity flocculation anode connects the second electricity flocculation negative electrode.
CN201320499891.0U 2013-08-15 2013-08-15 Electrochemical device for water treatment Expired - Lifetime CN203419777U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104030413A (en) * 2014-05-17 2014-09-10 曹学良 Treatment device for electrocatalytic oxidation of ship domestic sewage and method thereof
CN104370350A (en) * 2013-08-15 2015-02-25 中国石油天然气股份有限公司 Electrochemical device and method for water treatment
CN105384222A (en) * 2015-12-15 2016-03-09 苏州依斯倍环保装备科技有限公司 Waste water electric flocculation treatment device
CN105417644A (en) * 2015-12-16 2016-03-23 无锡吉进环保科技有限公司 Improved ionized sewage treatment tank
CN105565552A (en) * 2015-12-16 2016-05-11 无锡吉进环保科技有限公司 Ionization-type sewage treatment tank
CN106045145A (en) * 2016-07-29 2016-10-26 中国石油大学(华东) Method and device for treating waste fracturing liquid of oil and gas field

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104370350A (en) * 2013-08-15 2015-02-25 中国石油天然气股份有限公司 Electrochemical device and method for water treatment
CN104370350B (en) * 2013-08-15 2016-08-10 中国石油天然气股份有限公司 Electrochemical device and method for water treatment
CN104030413A (en) * 2014-05-17 2014-09-10 曹学良 Treatment device for electrocatalytic oxidation of ship domestic sewage and method thereof
CN105384222A (en) * 2015-12-15 2016-03-09 苏州依斯倍环保装备科技有限公司 Waste water electric flocculation treatment device
CN105417644A (en) * 2015-12-16 2016-03-23 无锡吉进环保科技有限公司 Improved ionized sewage treatment tank
CN105565552A (en) * 2015-12-16 2016-05-11 无锡吉进环保科技有限公司 Ionization-type sewage treatment tank
CN106045145A (en) * 2016-07-29 2016-10-26 中国石油大学(华东) Method and device for treating waste fracturing liquid of oil and gas field

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20140205

Effective date of abandoning: 20160810

C25 Abandonment of patent right or utility model to avoid double patenting