CN217459091U - Device for electrochemically treating desulfurization wastewater - Google Patents
Device for electrochemically treating desulfurization wastewater Download PDFInfo
- Publication number
- CN217459091U CN217459091U CN202220003861.5U CN202220003861U CN217459091U CN 217459091 U CN217459091 U CN 217459091U CN 202220003861 U CN202220003861 U CN 202220003861U CN 217459091 U CN217459091 U CN 217459091U
- Authority
- CN
- China
- Prior art keywords
- polar plate
- waste water
- desulfurization waste
- plate
- desulfurization
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Landscapes
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The utility model relates to the technical field of desulfurization wastewater treatment, in particular to a device for electrochemically treating desulfurization wastewater; the device is including the device casing of vertical setting, water inlet and delivery port have, the delivery port is higher than the water inlet setting, the fender has set gradually along the rivers direction in the device casing, first polar plate and second polar plate, the fender slope sets up, first polar plate and second polar plate are connected with two output electricity of power respectively, and the electrical property can reverse, first polar plate and second polar plate are netted microporous structure, the top and the bottom of device casing still are provided with gas outlet and precipitate portion respectively, precipitate portion includes mud bucket and waste outlet, desulfurization waste water is after the fender preliminary sedimentation, first polar plate and second polar plate of flowing through carry out the electrolytic filtration. The utility model provides a desulfurization waste water treatment medicament of power plant with high costs, deal with difficult problem to desulfurization waste water resource utilization's method is provided, and through preliminary sedimentation and electrolytic filtration, can improve desulfurization waste water treatment efficiency.
Description
Technical Field
The utility model relates to a desulfurization waste water treatment technical field especially relates to a device of electrochemical treatment desulfurization waste water.
Background
A coal-fired boiler wet flue gas desulfurization system (WFGD) discharges desulfurization wastewater containing a large amount of suspended matters, gypsum components, silicon dioxide and heavy metals in the desulfurization process. The mass concentration of suspended matters in the desulfurization wastewater is 9000-12700 mg/L, the desulfurization wastewater generally contains heavy metals such as mercury, lead, nickel, zinc, cadmium, chromium and the like and nonmetallic pollutants such as arsenic, fluorine and the like, is weakly acidic (the pH is 4-6), and simultaneously contains a large amount of chloride ions (the concentration is 5000-20000 mg/L). At present, the treatment mode aiming at the desulfurization wastewater of coal-fired boilers at home and abroad is mainly neutralization treatment, and after the treatment is carried out by neutralization, flocculation, precipitation, oxidation and other modes, water is removed by a filter press, drying and other modes to be used as solid waste for landfill; however, this method has many disadvantages and limitations, such as that the solid landfill technology after neutralization still cannot effectively solve the problem of chloride ions, and additional limestone is needed to be added, which causes waste of resources; and other modes, such as electrodialysis reverse osmosis and the like, can not solve the problems of too high chloride ion content and frequent membrane blockage, and the high-temperature evaporation crystallization technology has high requirements on equipment and large energy consumption and increases the equipment load. Therefore, there are many limitations and problems, and the problem of desulfurization waste water, especially high salt content (chloride ion), is still a difficult point in the waste water treatment of coal-fired power plants.
Electrochemical treatment of desulfurization waste water is considered to be a feasible treatment method, and in recent years, many researches on the treatment of electrolytic desulfurization waste water are carried out, however, the electrode reactor device used has different defects, and the electrolytic product cannot be fully recycled, so that the reliability of the process is reduced. The device aims at the defects of the prior art, combines the actual desulfurization wastewater treatment engineering, designs the system device for electrochemically treating the desulfurization wastewater, and solves the problems of desulfurization wastewater treatment disposal and electrolysis product resource utilization.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a device of electrochemical treatment desulfurization waste water, including the vertical device casing that sets up, water inlet and delivery port have, the delivery port is higher than the water inlet sets up, fender, first polar plate and second polar plate have set gradually along the rivers direction in the device casing, first polar plate and second polar plate are connected with two output electricity of power respectively, first polar plate and second polar plate are netted microporous structure, the top and the bottom of device casing still are provided with gas outlet and precipitate respectively.
Furthermore, a guide plate is arranged in the water inlet and is positioned at one end close to the device shell.
Furthermore, the mudguard is obliquely arranged, and a gap for the desulfurization waste water to flow through is arranged between the mudguard and the inner wall of the device shell.
Further, the water inlet sets up the top of settling section, settling section includes the mud bucket and sets up the waste outlet in the mud bucket bottom, the waste outlet is provided with the waste material valve.
Further, the waste outlet is also provided with a waste water valve, and the waste water valve is arranged above the waste valve.
Furthermore, a one-way valve is arranged on the gas outlet.
Further, the first polar plate is a micron-sized microporous platinum-ruthenium plate, and the second polar plate is a micron-sized stainless steel mesh.
Further, the water outlet is disposed between the gas outlet and the second pole plate.
Further, the first and second plates are electrically connected with two output ends of the power supply in an interchangeable manner, so that the electrical property of the first and second plates can be reversed.
Furthermore, flow detectors are respectively arranged at the water inlet and the water outlet.
The utility model discloses owing to adopt above technical scheme, make it compare with prior art, have following beneficial effect:
1) the device of the utility model solves the problems of high cost and difficult disposal of the desulfurization wastewater treatment agent in the power plant, and provides a method for recycling the desulfurization wastewater;
2) the device of the utility model can enable the desulfurization waste water to enter the device through the guide plate at a constant speed, and carry out preliminary sedimentation under the action of the fender, thereby removing larger particles and flocculating impurities, reducing the treatment capacity of the first polar plate and the second polar plate, and reducing the blockage hazard caused to the first polar plate;
3) the utility model discloses a link of first polar plate and second polar plate and power can exchange in the device and be used for reversal electrode, can clear up the deposit on polar plate surface, accomplishes the automatically cleaning on polar plate surface.
Drawings
FIG. 1 is a schematic structural view of the device for electrochemically treating desulfurization wastewater of the present invention.
1-a device housing; 2-a water inlet; 3-water outlet; 4-a fender; 5-a first polar plate; 6-a second polar plate; 7-a power supply; 8-a gas outlet; 9-a deflector; 10-a mud bucket; 11-a waste valve; 12-a waste water valve; 13-one-way valve.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention. In the drawings, the size and relative sizes of certain features may be exaggerated for clarity.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected" and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; the term "connected" refers to a connection between two elements or an interaction between two elements, and the term is used in the present invention to be understood as a specific meaning for those skilled in the art.
In the description of the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "center", "horizontal", "vertical", "top", "bottom", "inner", "outer", and the like are used in the orientation or positional relationship shown in the drawings, only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be considered as limiting the present invention.
Furthermore, in the description of the present invention, the terms "first" and "second" are used merely for descriptive distinction and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
As shown in the attached drawing 1 of the specification, the utility model provides a device for electrochemical treatment of desulfurization waste water, including the vertical device casing 1 that sets up, device casing 1 is circular, certainly, device casing 1 also can be square or other shapes, has water inlet 2 and delivery port 3, delivery port 3 is higher than water inlet 2 sets up, and desulfurization waste water gets into by water inlet 2, handles the back in device casing 1 and discharges by delivery port 3, along rivers direction in the device casing 1 set gradually fender 4, first polar plate 5 and second polar plate 6 are connected with two output electricity of power 7 respectively, first polar plate 5 and second polar plate 6 are netted micropore structure, the top and the bottom of device casing 1 still are provided with gas outlet 8 and precipitate respectively, specifically, fender 4, First polar plate 5 and second polar plate 6 set up between water inlet 2 and delivery port 3, and water inlet 2 sets up the top at the precipitate, gas outlet 8 sets up the top at delivery port 3, desulfurization waste water gets into device casing 1 back from water inlet 2, toward the in-process that 3 directions of delivery port flow, in the desulfurization waste water great granule and flocculating constituent are mutual enrichment under the effect of fender 4, free precipitation to precipitate, and regularly clear up the waste material of precipitate, less flocculating constituent or floater can not get rid of then come-up to electric filtration system in the desulfurization waste water, carry out further electrolytic filtration in first polar plate 5 and second polar plate 6, contain a large amount of ClO in the desulfurization waste water after the electrolysis and filter - The plasma is discharged from the water outlet and can be used for disinfection and sterilization of the circulating cooling water pipeline of the power plant.
In order to prevent the desulfurization waste water at the water inlet 2 from flowing unstably or directly impacting the mud guard 4 and the settling part, a flow guide plate 9 is arranged in the water inlet 2, the flow guide plate 9 is positioned at one end close to the device shell 1, the flow guide plate 9 can play a role of stabilizing the flow of the desulfurization waste water entering the device shell 1, larger particles and floccules in the desulfurization waste water are settled to the settling part, specifically, the settling part comprises a mud bucket 10 and a waste material outlet arranged at the bottom of the mud bucket 10, the waste material outlet is provided with a waste material valve 11, the waste material settled in the mud bucket can be cleaned periodically, in order to prevent the desulfurization waste water from flowing out when the waste material is cleaned, the waste material outlet is further provided with a waste material valve 12, the waste material valve 12 is arranged above the waste material valve 11, and the space between the waste material valve 12 and the waste material valve 11 is used for storing the settled waste material, when collecting the mud sediment waste material, open waste water valve 12, the mud sediment waste material is piled up in waste material valve 11 top, when needs clearance mud sediment waste material, then closes waste water valve 12, opens waste material valve 11, and the mud sediment waste material of discharging avoids desulfurization waste water to flow out.
As one of the implementation modes, the fender 4 is obliquely arranged, the fender 4 can be obliquely arranged towards the direction of the water inlet 2 as shown in the attached drawing 1 in the specification, of course, the fender 4 can also rotate 180 degrees and be obliquely arranged towards the other side, the inclination angle and the inclination direction of the fender 4 can be adjusted according to the use requirement, a gap for desulfurization wastewater to flow through is arranged between the fender 4 and the inner wall of the device shell 1, the gap between the fender 4 and the device shell 1 forms a water passage, and the desulfurization wastewater after preliminary precipitation through the fender 4 enters the first pole plate 5 and the second pole plate 6 through the water passage to be subjected to electrolytic filtration.
The implementation mode is refined, the first polar plate 5 is connected with the power supply to form a cathode, the second polar plate 6 is connected with the power supply to form an anode, the first polar plate 5 is a micron-sized microporous platinum ruthenium plate, the second polar plate 6 is a micron-sized stainless steel mesh, water can pass through holes of the first polar plate 5 and the second polar plate 6, the desulfurization wastewater subjected to preliminary precipitation through the mudguard 4 flows through the electrofilter cathode (namely the first polar plate 5 of the embodiment), the micron-sized polar plate of the cathode further intercepts larger particulate matters, meanwhile, the power supply 7 is started, and after the cathode is electrified, reduction of hydrogen ions and heavy metals (Cu, Hg, Sn, Cr and the like) is generated on the surface of the cathode, so that heavy metal ions in the desulfurization wastewater can be removed, and the main reaction is as follows:
2H + +2e - ＝H 2 ↑ (1)
Cu 2+ +2e - ＝Cu↓ (2)
Hg 2+ +2e - ＝Hg↓ (3)
Cr 3+ +3e - ＝Cr↓ (4)
Sn 2+ +2e - ＝Sn↓ (5)
the desulfurization wastewater generates H after cathode electrolysis 2 A one-way valve 13 is arranged at the gas outlet 8 and can be used for collecting H obtained by the cathode 2 Specifically, H is generated on the surface of the cathode 2 The micro bubbles can effectively promote the reduced heavy metal ion cathode surface to fall off, can preliminarily realize the self-cleaning of the filter material, prevent the filter material pore passages from being blocked by particles and heavy metal reducing substances, and realize the self-cleaning of the cathode surface;
the desulfurization waste water after being filtered by the first polar plate 5 and removing heavy metals flows through the second polar plate 6, the second polar plate 6 is a micron-sized stainless steel mesh anode, and after voltage is applied to a power supply, the anode mainly reacts as follows:
2Cl - -2e - ＝Cl 2 (6)
Cl 2 +H 2 O＝HClO+HCl (7)
when the cathode in the electrochemical device is blocked due to abnormal operation, that is, when the first polar plate 5 in this embodiment is blocked during use, because the second polar plate 6 is located above the first polar plate 5, particulate matters in the desulfurization wastewater are filtered in the mud guard 4 and the first polar plate 5, and precipitates attached to the second polar plate 6 are negligible, the electrical connections between the first polar plate 5 and the second polar plate 6 and the two output ends of the power supply 7 are interchangeable, and are used for reversing the electrical properties of the first polar plate 5 and the second polar plate 6, that is, the first polar plate 5 is an anode, and the second polar plate 6 is a cathode, the following reactions occur on the first polar plate 5:
2Cl - -2e - ＝Cl 2 (8)
Cl 2 +H 2 O＝HClO+HCl (9)
Cu-2e - ＝Cu 2+ (10)
Hg-2e - ＝Hg 2+ (11)
Cr-3e - ＝Cr 3+ (12)
Sn-2e - ＝Sn 2+ (13)
the reactions (8) - (13) show that the electrode sediments at the innermost layer are dissolved after the electrode is reversed, after the electrode is reversed again, the scale-shaped sediments on the surface of the electrode can be easily stripped from the surface of the electrode by the gas generated in the main reaction (1) on the first polar plate 5, the deep cleaning of the surface of the electrode is realized, the sediments on the surface of the electrode are desorbed, the fallen scale slag falls into the mud bucket 10, after the cleaning of the surface of the electrode is completed, the electrical property between the first polar plate 5 and the second polar plate 6 can be changed back, namely the first polar plate 5 is a cathode, the second polar plate 6 is an anode, the desulfurization wastewater is continuously electrolyzed and filtered, and the desulfurization wastewater is recycled; the electrical connection conversion between the first polar plate 5 and the second polar plate 6 and the power supply 7 can be realized by manual operation or converter operation, so that the electrical property between the first polar plate 5 and the second polar plate 6 is reversed; the water inlet 2 and the water outlet 3 are also respectively provided with a flow detector which can be used for detecting the water flow of the water inlet 2 and the water outlet 3, when the water flow of the water outlet 3 is lower than a set value, the cathode (namely, the first polar plate 5 in the embodiment) can be judged to be blocked, the electrical property of the first polar plate 5 and the electrical property of the second polar plate 6 can be reversed, the deep cleaning of the surface of the cathode is realized, and the self-cleaning of the electrode is realized. If the first polar plate 5 and the second polar plate 6 are electrically reversed through the converter, the flow detectors of the water inlet 2 and the water outlet 3 can be interlocked with the converter, and when the flow of the water outlet 3 is lower than a set value, the converter automatically reverses the electrical property, so that the self-cleaning of the cathode is realized.
In some embodiments, when the desulfurization waste water is electrolytically filtered, the first plate 5 may be connected to the power source 7 to form an anode, the second plate 6 is connected to the power source 7 to form a cathode, and the desulfurization waste water is electrolytically filtered, and the precipitates attached to the first plate 5 and the second plate 6 may be removed for cleaning or self-cleaning by reversing the electrical property.
And those not described in detail in this specification are well within the skill of the art.
To sum up, the utility model provides a device of electrochemical treatment desulfurization waste water, desulfurization waste water get into device casing 1 behind the stable rivers of guide plate 9 of water inlet 2 in, carry out preliminary sediment through fender 4, carry out electrolytic filtration through first polar plate 5 and second polar plate 6 again, further detach the particle impurity in the desulfurization waste water, floater and heavy metal ion, the H that the electrolysis generated 2 The desulfurization waste water after electrolytic filtration contains a large amount of ClO after being recovered through a gas outlet 8 - The water flows out of the water outlet 3 and can be used for disinfection and sterilization of a circulating cooling water pipeline of a power plant; the electrical properties of the first and second plates 5, 6 can be reversed, providing deep cleaning of the electrodes.
It will be appreciated by those skilled in the art that the invention can be embodied in many other specific forms without departing from the spirit or scope of the invention. Although the embodiments of the present invention have been described, it is to be understood that the present invention should not be limited to such embodiments, and that changes and modifications can be made by one skilled in the art within the spirit and scope of the present invention as defined by the appended claims.
Claims (10)
1. The utility model provides a device of electrochemical treatment desulfurization waste water, its characterized in that, has water inlet and delivery port including the vertical device casing that sets up, the delivery port is higher than the water inlet sets up, fender, first polar plate and second polar plate have set gradually along the rivers direction in the device casing, first polar plate and second polar plate are connected with two output electricity of power respectively, first polar plate and second polar plate are netted microporous structure, the top and the bottom of device casing still are provided with gas outlet and precipitate respectively.
2. The apparatus for electrochemically treating desulfurization waste water according to claim 1, wherein a flow guide plate is disposed within the water inlet, the flow guide plate being located near one end of the apparatus housing.
3. The apparatus for electrochemically treating desulfurization waste water according to claim 1, wherein the splash guard is disposed obliquely, and a gap through which desulfurization waste water flows is provided between the splash guard and an inner wall of the apparatus case.
4. The apparatus for electrochemically treating desulfurization wastewater according to claim 1, wherein the water inlet is disposed above the settling section, the settling section comprises a hopper and a waste outlet disposed at the bottom of the hopper, and the waste outlet is provided with a waste valve.
5. The apparatus for electrochemically treating desulfurization waste water according to claim 4, wherein the waste outlet is further provided with a waste valve disposed above the waste valve.
6. The apparatus for electrochemically treating desulfurization waste water according to claim 1, wherein a check valve is further provided on the gas outlet.
7. The apparatus for electrochemically treating desulfurization wastewater according to claim 1, wherein the first electrode plate is a micron-sized microporous platinum-ruthenium plate, and the second electrode plate is a micron-sized stainless steel mesh.
8. The apparatus for electrochemically treating desulfurization waste water according to claim 1, wherein the water outlet is disposed between the gas outlet and the second plate.
9. The apparatus for electrochemically treating desulfurization waste water according to claim 1, wherein the electrical connections between the first and second plates and the two output terminals of the power supply are interchangeable for reversing the electrical properties of the first and second plates.
10. The apparatus for electrochemical treatment of desulfurization waste water of claim 9, wherein the water inlet and the water outlet are further provided with a flow detector respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220003861.5U CN217459091U (en) | 2022-01-04 | 2022-01-04 | Device for electrochemically treating desulfurization wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220003861.5U CN217459091U (en) | 2022-01-04 | 2022-01-04 | Device for electrochemically treating desulfurization wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217459091U true CN217459091U (en) | 2022-09-20 |
Family
ID=83261114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220003861.5U Active CN217459091U (en) | 2022-01-04 | 2022-01-04 | Device for electrochemically treating desulfurization wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217459091U (en) |
-
2022
- 2022-01-04 CN CN202220003861.5U patent/CN217459091U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102936072B (en) | Nano-catalysis, electrolysis, flocculation and air-floatation device | |
| CN104261573B (en) | A kind of electrochemistry incrustation scale removal device | |
| CN111170526B (en) | Treatment method of ammonia nitrogen, phosphorus and arsenic in tungsten smelting wastewater | |
| CN108314226A (en) | A kind of electro-chemical systems of processing Sewage from Ships | |
| CN107522327B (en) | Electric flocculation-precipitation-advanced oxidation integrated papermaking wastewater treatment device | |
| CN202519115U (en) | Nano-catalysis, electrolysis, flocculation and air-floatation device | |
| CN110451697A (en) | Salt-containing organic wastewater electrocatalytic oxidation coupling pretreatment method and device | |
| CN111634979B (en) | Device for removing chloride ions in desulfurization wastewater by constructing three-dimensional electrode system through hydrotalcite-based particle electrode | |
| CN203238128U (en) | Integrated multipole electrochemical water treatment equipment | |
| CN211004911U (en) | Modular copper-containing effluent treatment plant of high concentration | |
| CN111943411A (en) | Advanced oxidation treatment device for composite sewage | |
| CN217459091U (en) | Device for electrochemically treating desulfurization wastewater | |
| CN208717048U (en) | A kind of integrated sewage treating apparatus | |
| CN207451807U (en) | Desulphurization for Coal-fired Power Plant waste water integrates fluoride-removing equipment | |
| CN101306896B (en) | Process for treating high-ammonia-nitrogen-containing waste water | |
| CN210855619U (en) | Contain salt organic waste water electrocatalytic oxidation coupling preprocessing device | |
| CN214141926U (en) | Heavy metal sewage treatment device | |
| CN212127829U (en) | Reverse osmosis concentrate electrolytic recovery device | |
| CN107162289A (en) | A kind of AEC electric flocculations Waste Water Treatment | |
| CN210528702U (en) | Electroplating effluent regeneration and reuse integrates processing apparatus | |
| RU139630U1 (en) | ELECTROFLOTATION INSTALLATION | |
| CN209740883U (en) | Industrial wastewater filtering and purifying device | |
| JP2000334462A (en) | Packed bed type electrochemical water treating device and method therefor | |
| CN207726783U (en) | Electroreduction sewage disposal device | |
| CN110668619A (en) | Lead-zinc industrial mineral processing wastewater treatment device and treatment method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |