CN201334379Y - Electrochemistry device for treating heavy metal waste water - Google Patents
Electrochemistry device for treating heavy metal waste water Download PDFInfo
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- CN201334379Y CN201334379Y CNU2009200629145U CN200920062914U CN201334379Y CN 201334379 Y CN201334379 Y CN 201334379Y CN U2009200629145 U CNU2009200629145 U CN U2009200629145U CN 200920062914 U CN200920062914 U CN 200920062914U CN 201334379 Y CN201334379 Y CN 201334379Y
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- heavy metal
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- plate
- conductive pole
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Abstract
An electrochemistry device for treating heavy metal waste water comprises a case body, a power supply device and a pole-plate mechanism mounted in the case body. The pole-plate mechanism comprises more than two conductive pole plates and a non-conductive pole plate, one non-conductive pole plate is arranged between every two conductive pole plates; the electrodes of two adjacent conductive pole plates are opposite; a conductive pore is formed at one end of each conductive pole plate, and a conductive copper pipe penetrates through the conductive pore and is connected with the power supply device; the power supply device is a pulsed power supply; and hoisting holes are formed on the conductive pole plates and the non-conductive pole plate. The utility model provides the electrochemistry device for treating heavy metal waste water, which has the advantages of simple and compact structure, low cost and energy consumption, convenient disassembly, assembly and maintenance as well as high treatment efficiency.
Description
Technical field
The utility model is mainly concerned with the sewage treatment equipment field, refers in particular to a kind of electrochemical appliance that is used to handle heavy metal wastewater thereby.
Background technology
Chinese scholars has been done a large amount of research to the governing problem of heavy metal contamination, but along with emission standard is more and more tighter, all there is certain limitation in the present heavy metal polluted waste water treatment process of Application and Development as methods such as chemical precipitation method, biological process, ion-exchanges.Adopt chemical precipitation method to have the running cost height, floor space is big, treatment effect instability, shortcoming such as difficult up to standard; Biological process exists entry water quality requirement height, inferior position such as level of automation is low, the project construction cycle is long, and physics methods such as ion-exchange can only be handled at the heavy metal ion of certain particular type and specific concentrations.And electrochemical method is an effective way of handling heavy metal wastewater thereby, its have effective, operating costs are low, the construction period is short, be easy to management and advantages such as operation, applied range, are subjected to people's attention day by day.Its principle is: pass through electrochemical reaction under the effect of external voltage, the positively charged ion hydrolysis in solution, the polymerization that utilize soluble anode (being generally iron anode or aluminum anode) to produce generate a series of multinuclear hydroxo complexes and oxyhydroxide, play throwing out as flocculation agent, the complexing ion and the oxyhydroxide that produce have very high adsorption activity, and its adsorptive power is higher than the oxyhydroxide that general medical method hydrolysis obtains.It is organic pollutant and other colloidalmaterial in the planar water effectively.Simultaneously, because the disassociation of water and other material by electrolytic oxidation, will produce oxygen on anode and negative electrode and the micro-bubble of hydrogen, these bubbles have the good performance of sticking, and can take cohesion micelle and the suspended substance that produces in the electrolytic process to the water surface.In electrolytic process, also the electrolytic oxidation reduction reaction can take place, be divided into the reduction of direct oxidation reduction and indirect oxidation.Direct oxidation reduction is meant pollutent directly oxidized or reduction and removing on electrode from waste water; The redox material that the indirect oxidation reduction produces when being meant electrolysis makes pollutent be converted into the littler material of toxicity, hydrogen in statu nascendi that produces during as hydrolytic dissociation and active oxygen, some other strong oxidizer or free radical as reagent or catalyzer.By oxygenizement, some larger molecular organics in the solution is broken down into small organic molecule, also might directly be oxidized to CO
2And H
2O and do not produce mud, and these small organic molecules can effectively be separated under subsequently flocculation, air supporting effect; Reductive action by the hydrogen in statu nascendi that produces on the negative electrode can also reclaim heavy metal, and the material of reduction halohydrocarbon and band phenyl ring etc.Therefore, the electricity flocculation is in process for the treatment of waste water, and various procedures is had an effect simultaneously, and pollutent is removed under these effects easily.
This is the process of a complexity, briefly, produces the formation flco from ionic behind the metal electrode generation positively charged ion exactly under effect of electric field and comprises three continuous stages:
(1) under effect of electric field, anode produces electronics and forms " little flocculation agent "---the oxyhydroxide of iron or aluminium;
(2) particles suspended, colloid pollution thing loss of stability under the effect of little flocculation agent in the water;
(3) collision mutually between the contaminant particle after taking off surely and the little flocculation agent is combined into macroscopic big flocculating body.
Electrode materials commonly used is aluminium or iron in the electricity flocculence, passes to direct current between anode and negative electrode, and the electrode reaction of generation is as follows:
Iron anode
Fe-2e→Fe
2+
Under alkaline condition
Fe
2++2OH
-→Fe(OH)
2
Under acidic conditions
4Fe
2+++O
2+2H
2O→4Fe
3+++4OH
-
In addition, the electrolysis of water also has oxygen to emit
2H
2O-4e→O
2+4H
+
Following reaction takes place at negative electrode
2H
2O+2e→H
2+2OH
-
Because the product in electrolytic reaction is an ion, does not need to add any oxygenant or reductive agent, environment is not produced or seldom produces pollution, a kind of environmental friendliness water technology of being known as.It has a lot of advantages, as:
(1) equipment is simple, and floor space is few, the operation and maintenance simple and flexible, and the construction period is short;
(2) do not need to add any chemical agent in the electric flocculation process, the sludge quantity of generation is few, and the water ratio of mud is low, is easy to handle, and has reduced chemical agent and sludge disposal cost;
(3) simple to operate, the impressed voltage that only need change electric field just can be controlled the change of operational conditions, is easy to realize automatization control;
But these class electrochemical techniques also extensively do not obtain large-scale application at present, the major cause that restricts its widespread use is that its energy consumption is higher, soluble anode is easy to take place polarization and thereby passivation has increased the processing power consumption, reduced treatment effect, pole plate needs regularly frequent the replacing in actual applications, and because its structure design pole plate is changed trouble, workload is big.
The utility model content
Problem to be solved in the utility model just is: at the technical problem that prior art exists, the utility model provides a kind of simple and compact for structure, with low cost, energy consumption is low, dismounting is easy to maintenance, processing efficiency is high electrochemical appliance that is used to handle heavy metal wastewater thereby.
For solving the problems of the technologies described above, the solution that the utility model proposes is: a kind of electrochemical appliance that is used to handle heavy metal wastewater thereby, it comprises casing, supply unit and be installed in the intravital pole plate of case mechanism, it is characterized in that: described pole plate mechanism comprises conductive plate and the non-conductive pole plate more than two, be provided with a non-conductive pole plate between per two conductive plates, the electrode of adjacent two conductive plates is opposite, offer the conduction pore on one end of conductive plate, contact tube is arranged in the conduction pore and with supply unit and links to each other, described supply unit is the pulse power, all offers erection opening on described conductive plate and the non-conductive pole plate.
Described conductive plate is a trapezoidal plate, and described conduction pore is opened in a side higher on the conductive plate.
Be equiped with an above backwash tube that links to each other with external water source on the side of described casing.
Described casing comprises electrolyzer and the sludge bucket that is used for installing pole plate mechanism, and described sludge bucket is positioned at the below of electrolyzer.
Compared with prior art, advantage of the present utility model just is:
1, the utility model is used to handle the electrochemical appliance of heavy metal wastewater thereby, can be used for to handle all kinds of heavy metal wastewater therebies to the heavy metal containing sewage electrochemical appliance, realize the flocculation sediment of heavy metal, reach qualified discharge, can overcome that pole plate is changed trouble, conducting plates assembles problems such as the easy fouling of difficult pole plate, sewage flocculation sedimentation effect difference.This apparatus structure is simply compact, occupation of land is little, with low cost, energy consumption is low, dismounting is easy to maintenance, processing efficiency is high, and the water outlet effect is very good, all kinds of heavy metals are (as arsenic, zinc, plumbous, chromium, cadmium etc.) can both be owing to national sewage comprehensive discharge primary standard, even can reach a class surface water standard;
2, the utility model is used to handle the electrochemical appliance of heavy metal wastewater thereby, adopt variable-frequency power sources, what this general class electrochemical appliance adopted is direct supply, change it into pulse power after, can improve power consumption efficiency greatly on the one hand, the security of engineering is guaranteed on the other hand;
3, the utility model is used to handle the electrochemical appliance of heavy metal wastewater thereby, has improved the shape and the array mode thereof of reaction primary device both inner pad, makes it be easy to lifting, dismounting and replacing;
4, the utility model is used to handle the electrochemical appliance of heavy metal wastewater thereby, is equiped with backwash tube, can lead to the stirring that high pressure water increases water inlet on the one hand when equipment moves, and it is fully reacted, and improves treatment effect; Can lead to high pressure water when equipment downtime on the other hand and carry out back flushing, the dirt on the pole plate is rinsed, to reduce and to avoid the generation of fouling.
Description of drawings
Fig. 1 is a main TV structure synoptic diagram of the present utility model;
Fig. 2 is a side-looking structural representation of the present utility model;
Fig. 3 is the structural representation of conductive plate in the utility model.
Marginal data
1, conductive plate 2, non-conductive pole plate
3, supply unit 4, backwash tube
5, electrolyzer 6, sludge bucket
7, non-conductive pole plate erection opening 8, conductive plate erection opening
9, contact tube 10, casing
11, conduction pore
Embodiment
Below with reference to the drawings and specific embodiments the utility model is described in further details.
As depicted in figs. 1 and 2, the utility model is used to handle the electrochemical appliance of heavy metal wastewater thereby, it comprises casing 10, supply unit 3 and is installed in pole plate mechanism in the casing 10, casing 10 comprises electrolyzer 5 and the sludge bucket 6 that is used for installing pole plate mechanism, and sludge bucket 6 is positioned at the below of electrolyzer 5.Pole plate mechanism comprises conductive plate 1 and the non-conductive pole plate 2 more than two, be provided with a non-conductive pole plate 2 between per two conductive plates 1, the electrode of adjacent two conductive plates 1 is opposite, and non-conductive pole plate 2 is a general steel plate all with conductive plate 1 material, and the spacing between pole plate is 0.8-1.4cm.Offer 11, two contact tubes 9 of conduction pore on one end of conductive plate 1 and be arranged in respectively in the conduction pore 11 of conductive plate 1 both sides, two contact tubes 9 link to each other with negative pole with the positive pole of supply unit 3 respectively.Supply unit 3 is the pulse power, applies the pulse power on conductive plate 1, and strength of current is 1000A/m
2Carry out successional positive and negative electrode commutation by the pulse power, can improve power consumption efficiency greatly on the one hand, the security of engineering is guaranteed on the other hand; All offer erection opening on conductive plate 1 and the non-conductive pole plate 2, it is respectively non-conductive pole plate erection opening 7 and conductive plate erection opening 8, can be by the loading and unloading of intermediary erection opening when non-conductive pole plate 2 loads and unloads with conductive plate 1.In the present embodiment, referring to Fig. 3, conductive plate 1 is a trapezoidal plate, conduction pore 11 is opened in a side higher on the conductive plate 1, erection opening is opened in the place, mid-way of conductive plate 1, acute angle on conductive plate 1 cross section be 75 the degree, this pole plate shape and with contact tube 9 mode of connection and lifting mode alleviated greatly the operator labour intensity and reduced working time.In preferred embodiment, be equiped with an above backwash tube 4 that links to each other with external water source on the side of casing 10, can when moving, equipment lead to the stirring that high pressure water increases water inlet on the one hand, and it is fully reacted, improve treatment effect; Can lead to high pressure water when equipment downtime on the other hand and carry out back flushing, the dirt on the pole plate is rinsed, to reduce and to avoid the generation of fouling.
Principle of work: waste water is from the water inlet of casing 10 bottoms, and after the energising, the oxyhydroxide reaction that water decomposes with pole plate between pole plate forms little flco, and from the top water outlet, sludge settling enters sludge bucket 6 backs and discharges; In the water inlet phase, backwash tube 4 feeds high pressure water and is blown into electrolyzer 5 with 45 degree oblique angles, work the effect of mixing, during electrolyzer 5 quits work, backwash tube 4 feeds high pressure water and is blown into electrolyzer 5 with 45 degree oblique angles, can play the effect of washing away the pole plate dirt, thereby the situation that reduces electrode plate structure takes place.
The above only is a preferred implementation of the present utility model, and protection domain of the present utility model also not only is confined to the foregoing description, and all technical schemes that belongs under the utility model thinking all belong to protection domain of the present utility model.Should be pointed out that for those skilled in the art in the some improvements and modifications that do not break away under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1, a kind of electrochemical appliance that is used to handle heavy metal wastewater thereby, it comprises casing (10), supply unit (3) and be installed in pole plate mechanism in the casing (10), it is characterized in that: described pole plate mechanism comprises conductive plate (1) and the non-conductive pole plate (2) more than two, be provided with a non-conductive pole plate (2) between per two conductive plates (1), the electrode of adjacent two conductive plates (1) is opposite, offer conduction pore (11) on one end of conductive plate (1), contact tube (9) is arranged in the conduction pore (11) and with supply unit (3) and links to each other, described supply unit (3) is the pulse power, all offers erection opening on described conductive plate (1) and the non-conductive pole plate (2).
2, the electrochemical appliance that is used to handle heavy metal wastewater thereby according to claim 1 is characterized in that: described conductive plate (1) is a trapezoidal plate, and described conduction pore (11) is opened in conductive plate (1) and goes up a higher side.
3, the electrochemical appliance that is used to handle heavy metal wastewater thereby according to claim 1 and 2 is characterized in that: be equiped with an above backwash tube (4) that links to each other with external water source on the side of described casing (10).
4, the electrochemical appliance that is used to handle heavy metal wastewater thereby according to claim 1 and 2, it is characterized in that: described casing (10) comprises electrolyzer (5) and the sludge bucket (6) that is used for installing pole plate mechanism, and described sludge bucket (6) is positioned at the below of electrolyzer (5).
5, the electrochemical appliance that is used to handle heavy metal wastewater thereby according to claim 3, it is characterized in that: described casing (10) comprises electrolyzer (5) and the sludge bucket (6) that is used for installing pole plate mechanism, and described sludge bucket (6) is positioned at the below of electrolyzer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200629145U CN201334379Y (en) | 2009-01-13 | 2009-01-13 | Electrochemistry device for treating heavy metal waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200629145U CN201334379Y (en) | 2009-01-13 | 2009-01-13 | Electrochemistry device for treating heavy metal waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201334379Y true CN201334379Y (en) | 2009-10-28 |
Family
ID=41286028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200629145U Expired - Lifetime CN201334379Y (en) | 2009-01-13 | 2009-01-13 | Electrochemistry device for treating heavy metal waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201334379Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475244B (en) * | 2009-01-13 | 2011-09-28 | 长沙创享环保科技有限公司 | Electrochemical device for processing heavy metal wastewater |
-
2009
- 2009-01-13 CN CNU2009200629145U patent/CN201334379Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475244B (en) * | 2009-01-13 | 2011-09-28 | 长沙创享环保科技有限公司 | Electrochemical device for processing heavy metal wastewater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151119 Address after: 410013, 673, Xin Sheng Road, hi tech Development Zone, Hunan, Changsha Patentee after: Changsha China Huashijie Science & Technology Development Co., Ltd. Address before: 410013 6 floor, Dr. Pioneer Park, Changsha hi tech Development Zone, Hunan Patentee before: Changsha Chuangxiang Environmental Protection Technology Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 410005 Changsha province hi tech Development Zone, Hunan Sheng Road, No. 673 Patentee after: CHANGSHA HASKY ENVIRONMENTAL PROTECTION TECHNOLOGY DEVELOPMENT CO., LTD. Address before: 410013, 673, Xin Sheng Road, hi tech Development Zone, Hunan, Changsha Patentee before: Changsha China Huashijie Science & Technology Development Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20091028 |
|
| CX01 | Expiry of patent term |