CN110790347B - Electrophoresis enhancement electrocatalytic oxidation advanced treatment device - Google Patents
Electrophoresis enhancement electrocatalytic oxidation advanced treatment device Download PDFInfo
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- CN110790347B CN110790347B CN201910982196.1A CN201910982196A CN110790347B CN 110790347 B CN110790347 B CN 110790347B CN 201910982196 A CN201910982196 A CN 201910982196A CN 110790347 B CN110790347 B CN 110790347B
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- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 67
- 230000003647 oxidation Effects 0.000 title claims abstract description 64
- 238000001962 electrophoresis Methods 0.000 title claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 155
- 238000007789 sealing Methods 0.000 claims abstract description 93
- 238000005192 partition Methods 0.000 claims abstract description 33
- 239000002351 wastewater Substances 0.000 claims abstract description 22
- 230000000903 blocking effect Effects 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000003344 environmental pollutant Substances 0.000 abstract description 13
- 231100000719 pollutant Toxicity 0.000 abstract description 13
- 238000005516 engineering process Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 7
- 239000013505 freshwater Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 239000004155 Chlorine dioxide Substances 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910001925 ruthenium oxide Inorganic materials 0.000 description 1
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4696—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrophoresis
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Electrochemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
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Abstract
The invention discloses an electrophoresis enhancement electrocatalytic oxidation advanced treatment device, which comprises a cathode box body, an anode plate, a layered partition plate, a top-layer end sealing plate, a bottom-layer end sealing plate, a vertical shunt, a vertical drainer and a horizontal shunt, wherein the top-layer end sealing plate is arranged on the cathode box body; the cathode box body is internally provided with a plurality of layered clapboards in a vertical arrangement manner, the interior of the cathode box body is divided into a plurality of mutually independent electrocatalytic oxidation layers by the plurality of layered clapboards, an anode plate is arranged between the front side plate and the rear side plate of the cathode box, and a vertical diverter is sequentially inserted into a top layer sealing plate at one side of the anode plate and each layered clapboards; the top of each layered partition board is provided with a plurality of horizontal flow splitters which are connected end to end in sequence; the invention uses the inherent electrode of the electrocatalytic oxidation technology to generate electrophoresis effect, directionally shunts the polar pollutants in the organic wastewater to form fresh water flow and concentrated water flow, and respectively carries out electrocatalytic oxidation, thereby having the advantages of high efficiency, energy saving, simple structure, small occupied area, convenient loading and unloading, and stable and reliable operation.
Description
Technical Field
The invention relates to the technical field of advanced treatment of organic wastewater, in particular to an electrophoresis enhanced electrocatalytic oxidation advanced treatment device.
Background
In the field of organic wastewater treatment, biological treatment methods are difficult to treat and require advanced oxidation techniques. The common advanced oxidation technologies include Fenton, ozone, chlorine dioxide, electrocatalytic oxidation and the like, wherein the advanced oxidation technologies such as Fenton, ozone and the like are only used for secondary treatment, and the advanced treatment effect is poor; the electrocatalytic oxidation technology can be used for the advanced treatment of organic wastewater, has the advantages of good oxidation effect, no medicament addition, no secondary pollution, simple control and small occupied area compared with other advanced oxidation technologies, and becomes a research and application hot spot in the field of advanced treatment of organic wastewater in recent years. However, the development of the electrocatalytic oxidation technology is still immature, and the technology and equipment still have defects: the electrocatalytic oxidation device has low electrocatalytic oxidation efficiency, large side reaction proportion, high investment and operation cost, poor impact load resistance capability, poor adaptability, difficult loading and unloading and inconvenient maintenance.
Aiming at the problems existing in the electrocatalytic oxidation technology and equipment, the prior art cannot solve the problems, so that the development of the electrocatalytic oxidation device with high electrocatalytic oxidation efficiency, strong impact load resistance, low investment and running cost and convenient loading, unloading and maintenance has important significance.
Disclosure of Invention
The invention aims to provide an electrophoresis enhanced electrocatalytic oxidation advanced treatment device, which solves the problems of the prior art and has the advantages of high electrocatalytic oxidation efficiency, strong impact load resistance, low investment and running cost and convenient loading, unloading and maintenance.
In order to achieve the above object, the present invention provides the following solutions:
the invention provides an electrophoresis enhancement electro-catalytic oxidation advanced treatment device, which comprises a cathode box body, an anode plate, a layered partition plate, a top-layer end sealing plate, a bottom-layer end sealing plate, a vertical shunt, a vertical drainer and a horizontal shunt; the top and the bottom of the cathode box body are respectively blocked by the top layer end blocking plate and the bottom layer end blocking plate, the layered partition plates are transversely arranged, a plurality of layered partition plates are vertically arranged in the cathode box body, the interior of the cathode box body is separated by a plurality of mutually independent electrocatalytic oxidation layers by the layered partition plates, the anode plate is arranged between the front side plate and the rear side plate of the cathode box body, the top end of the anode plate is contacted with the top layer end blocking plate, the bottom end of the anode plate sequentially passes through each layered partition plate and then is contacted with the bottom layer end blocking plate, and two sides of the anode plate are separated from the cathode box body, so that a circulating flow channel is separated by the anode plate in each electrocatalytic oxidation layer;
the vertical diverter comprises a single water inlet pipe arranged at the top and two diversion water outlet pipes arranged at the two sides of the bottom of the water inlet pipe, the head ends of the water inlet pipe are respectively provided with a water inlet, the head ends of the two diversion water outlet pipes are respectively provided with a water outlet, the top layer sealing plate at one side of the anode plate and each layered partition plate are respectively and sequentially spliced with the vertical diverter, the vertical diverter is spliced on the top layer sealing plate and the layered partition plate through the water inlet pipe, the water inlet on the water inlet pipe of each vertical diverter is respectively positioned at the top layer sealing plate and the top of each layered partition plate, the water inlet of the vertical diverter at the top layer sealing plate is communicated with organic wastewater, the horizontal diverter is a funnel-shaped water inlet pipe, the width of the water inlet at the tail end of the horizontal diverter is larger than the width of the water outlet at the head end, the top of each layered partition plate is respectively and sequentially spliced with a plurality of horizontal diverters at the tail end, and the water inlets of the horizontal diverter positioned at the tail end are sequentially communicated with the water inlets of the vertical diverter at the top of the layered partition plate;
the vertical drainer is arranged on the bottom sealing plate in a penetrating manner, one end of the vertical drainer, which extends into the top of the bottom sealing plate, is a water inlet end, one end of the vertical drainer, which is positioned at the bottom of the bottom sealing plate, is a water outlet end, and the water inlet end of the vertical drainer is positioned between the two split water outlet pipes of the vertical splitter.
Preferably, the cathode box is made of conductive metal, and the anode plate is an oxide coating electrode plate.
Preferably, the layered separator, the top seal plate, the bottom seal plate, the vertical diverter, the vertical drain and the horizontal diverter are made of an insulating material.
Preferably, the vertical central lines of the vertical flow splitters coincide, the two flow splitting water outlet pipes of each vertical flow splitter are symmetrically arranged on two sides of the bottom of the water inlet pipe, and the central lines of the water inlet and the water outlet of the horizontal flow splitter and the water inlet of the water inlet pipe of the vertical flow splitter coincide.
Preferably, the water inlet pipe and the water outlet pipe of the vertical diverter are rectangular pipes.
Preferably, the water inlet of the vertical diverter at the top-layer end sealing plate is connected with a water collecting port, and the water outlet at the water draining end of the vertical drainer is also connected with a water collecting port.
Preferably, the area of the top sealing plate and the area of the bottom sealing plate are larger than the cross-sectional area of the cathode box body, the top sealing plate and the bottom sealing plate protrude out of the periphery of the upper end face and the lower end face of the cathode box body, a plurality of connecting holes are distributed on the periphery of the upper end face and the lower end face of the cathode box body, and a plurality of first screws penetrate through the two connecting holes which are opposite to each other on the top sealing plate and the bottom sealing plate respectively and are screwed down through first nuts.
Preferably, a power supply wiring block connected with the cathode box body and the anode plate respectively is arranged at the top of the top-layer end sealing plate, and wiring holes are formed in the power supply wiring block; and an exhaust port is also arranged on the top-layer end sealing plate.
Preferably, the water collecting port at the top of the top-layer sealing plate is connected with a water collecting pipe; the water collecting port at the bottom of the bottom sealing plate is connected with a drain pipe.
Preferably, the cathode boxes provided with the anode plate, the layered separator, the vertical diverter, the vertical drainer and the horizontal diverter are sequentially arranged in a plurality along the width direction, the top ends and the bottom ends of the cathode boxes share one top sealing plate and one bottom sealing plate, the top sealing plate and the bottom sealing plate protrude out of the periphery of each cathode box, a plurality of connecting holes are respectively formed in the periphery of each cathode box, and a plurality of screws are respectively arranged on two connecting holes which are opposite to each other one by one in a penetrating way and are screwed by nuts;
the wire connecting holes of the power supply wire connecting blocks connected with the cathode boxes and the wire connecting holes of the power supply wire connecting blocks connected with the anode plates are respectively provided with the same second screw rod in a penetrating way, the rod bodies of the second screw rods between two adjacent wire connecting blocks are sleeved with a conductive support column, and the tail ends of the second screw rods are locked through second nuts;
the water collecting ports at the top of the top-layer end sealing plate are connected through the same water collecting pipe; and a plurality of water collecting ports at the bottom of the bottom sealing plate are connected with the same water draining pipe.
Compared with the prior art, the invention has the following beneficial technical effects:
the electrophoresis enhanced electrocatalytic oxidation advanced treatment device provided by the invention has the advantages that only the structure is improved, the equipment and investment are not increased, the organic combination of the electrocatalytic oxidation technology and the electrophoresis separation technology is realized, the polar pollutants in the water body can be split to form concentrated water flow and fresh water flow, the electrocatalytic oxidation treatment is respectively carried out, the electrocatalytic oxidation treatment efficiency is greatly improved, meanwhile, the separated concentrated water flow has low electrocatalytic oxidation power and short fresh water flow treatment time, and the energy consumption is reduced in two aspects. The device adopts a layered and circulating water distribution mode, has long water flow path and no dead water area, ensures the full electrocatalytic oxidation reaction and effectively avoids side reactions; the high pollutant concentration wastewater subjected to electrophoresis diversion is circulated in the device along the flow channel for high-efficiency treatment until pollutants are completely oxidized, so that the impact load resistance and the effluent standard reaching rate of the electrocatalytic oxidation device are improved. The device for the electrophoresis enhanced electrocatalytic oxidation advanced treatment has the advantages of high efficiency, energy saving, simple structure, small occupied area, convenient loading and unloading and stable and reliable operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective assembly view of an electrophoresis enhanced electrocatalytic oxidation advanced treatment device of the present invention;
FIG. 2 is a schematic diagram showing the internal structure of an electro-catalytic oxidation advanced treatment apparatus with electrophoresis enhancement according to the present invention;
FIG. 3 is a perspective view of the vertical and horizontal diverters of the present invention;
FIG. 4 is an exploded view of FIG. 3;
FIG. 5 is a perspective assembly view of an apparatus for electro-catalytic oxidation in a second embodiment of the present invention;
FIG. 6 is a disassembled view of a second screw, a second nut and a conductive support post according to a second embodiment of the present invention;
FIG. 7 is a schematic top view of an electro-catalytic oxidation advanced treatment apparatus with electrophoresis enhancement according to the present invention;
in the figure: the cathode box body comprises a 1-cathode box body, a 2-anode plate, a 3-layered partition plate, a 4-top layer end sealing plate, a 5-bottom layer end sealing plate, a 6-vertical diverter, a 61-water inlet pipe, a 62-diversion water outlet pipe, a 7-vertical drainer, an 8-horizontal diverter, a 9-water collecting port, a 10-power supply wiring block, a 11-air outlet, a 12-first screw rod, a 13-first nut, a 14-second screw rod, a 15-second nut, a 16-conductive support column, a 17-water collecting pipe and a 18-water draining pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide an electrophoresis enhanced electrocatalytic oxidation advanced treatment device for solving the problems in the prior art.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
The invention provides an electrophoresis enhancement electrocatalytic oxidation advanced treatment device, which is shown in fig. 1 and 2, and comprises a cathode box body 1, an anode plate 2, a layered partition plate 3, a top-layer end sealing plate 4, a bottom-layer end sealing plate 5, a vertical shunt 6, a vertical drainage device 7 and a horizontal shunt 8; the top and the bottom of the cathode box body 1 are respectively blocked by a top layer sealing plate 4 and a bottom layer sealing plate 5, the layered partition plates 3 are transversely arranged, the layered partition plates 3 are vertically arranged in the cathode box body 1, a plurality of electrocatalytic oxidation layers which are mutually independent are separated from the cathode box body 1 by the layered partition plates 3, the anode plate 2 is arranged between the front side plate and the rear side plate of the cathode box, the top end of the anode plate 2 is contacted with the top layer sealing plate 4, the bottom end sequentially passes through the layered partition plates 3 and then is contacted with the bottom layer sealing plate 5, and the two sides of the anode plate 2 are separated from the cathode box body 1, so that a circulating flow channel is separated from each electrocatalytic oxidation layer by the anode plate 2;
as shown in fig. 3 and fig. 4, the vertical diverter 6 comprises a single water inlet pipe 61 arranged at the top and two diversion water outlet pipes 62 arranged at two sides of the bottom of the water inlet pipe 61, the head ends of the water inlet pipe 61 are respectively provided with a water inlet, the head ends of the two diversion water outlet pipes 62 are respectively provided with a water outlet, the top layer sealing plate 4 at one side of the anode plate 2 and each layered partition plate 3 are respectively and sequentially inserted with a vertical diverter 6, the vertical diverter 6 is inserted on the top layer sealing plate 4 and the layered partition plates 3 through the water inlet pipe 61, the water inlet of the water inlet pipe 61 of each vertical diverter 6 is respectively positioned at the top layer sealing plate 4 and the top of each layered partition plate 3, the water inlet of the vertical diverter 6 at the top layer sealing plate 4 is filled with organic wastewater, the horizontal diverter 8 is a funnel-shaped water inlet pipe, the width of the water inlet at the tail end of the horizontal diverter 8 is larger than the width of the water outlet at the head end, and a plurality of horizontal diverters 8 which are sequentially connected end to end are arranged at the top of each layered partition plate 3, wherein the water inlet of the horizontal diverter 8 at the tail end is communicated with the water inlet of the vertical diverter 6 at the top of the layered partition plates 3;
the vertical drainer 7 is arranged on the bottom sealing end plate 5 in a penetrating manner, one end of the vertical drainer extending into the top of the bottom sealing end plate 5 is a water inlet end, one end of the vertical drainer 7 positioned at the bottom of the bottom sealing end plate 5 is a water outlet end, and the water inlet end of the vertical drainer 7 is positioned between two diversion water outlet pipes 62 of the vertical diverter 6.
In the invention, the cathode box body 1 is made of conductive metal, preferably stainless steel; the anode plate 2 is an oxide coating electrode plate, preferably a titanium-based ruthenium oxide coating electrode plate; the layered separator 3, top seal plate 4, bottom seal plate 5, vertical diverter 6, vertical drain 7 and horizontal diverter 8 are made of an insulating material such as nylon, insulating rubber or other high point resistivity plastic.
In the invention, the vertical central lines of the vertical flow splitters 6 are coincident, two flow splitting water outlet pipes 62 of each vertical flow splitter 6 are symmetrically arranged at two sides of the bottom of the water inlet pipe 61, and the central lines of the water inlet and the water outlet of the horizontal flow splitter 8 and the water inlet of the water inlet pipe 61 of the vertical flow splitter 6 are coincident; wherein, the water inlet pipe 61 and the diversion water outlet pipe 62 of the vertical diverter 6 are rectangular pipes, the water inlet of the vertical diverter 6 at the top-layer sealing plate 4 is connected with a water collecting port 9, and the water outlet of the water discharging end of the vertical drainer 7 is also connected with a water collecting port 9; in a specific structural design, due to the requirement of water flow guiding, an inclined baffle is arranged at the tail end of the vertical diverter 6, and the baffle for guiding the water flow in the water flow direction is set at an angle with the water flow direction. The smaller the angle, the smaller the resistance of the water flow transferred from the upper part to the lower part, the smoother the transfer, but the more electrolytic areas are occupied, and the larger the angle is, the opposite is, so the angle is generally selected in the range of 30-60 degrees, and the factors such as the water inlet pressure, the electrode plate length and the like are taken into consideration.
The top of the top-layer end sealing plate 4 is provided with a power supply wiring block 10 which is respectively connected with the cathode box body 1 and the anode plate 2, and the power supply wiring block 10 is provided with wiring holes; the top sealing plate 4 is also provided with an exhaust port 11; the water collecting port 9 at the top of the top-layer end sealing plate 4 is connected with a water collecting pipe 17; the water collecting port 9 at the bottom of the bottom sealing plate 5 is connected with a water discharging pipe 18.
Embodiment one:
in this embodiment, as shown in fig. 1, only a single cathode box 1 is provided, and the top sealing plate 4 and the bottom sealing plate 5 are provided, so that the areas of the top sealing plate 4 and the bottom sealing plate 5 are larger than the cross-sectional area of the cathode box 1, a plurality of connecting holes are distributed on the peripheries of the upper end face and the lower end face of the cathode box 1, and a plurality of first screws 12 respectively penetrate through two connecting holes on the top sealing plate 4 and the bottom sealing plate 5, and are screwed up by first nuts 13.
Embodiment two:
as shown in fig. 5 and 6, in the electrophoresis enhancement electrocatalytic oxidation advanced treatment device in this embodiment, a plurality of cathode boxes 1 are sequentially arranged along the width direction, each cathode box 1 is provided with an anode plate 2, a layered separator 3, a vertical diverter 6, a vertical drainer 7 and a horizontal diverter 8, the top ends and the bottom ends of the plurality of cathode boxes 1 share a top sealing plate 4 and a bottom sealing plate 5, a plurality of connecting holes are respectively formed in the peripheries of the top sealing plate 4 and the bottom sealing plate 5 protruding out of each cathode box 1, and a plurality of screws are respectively arranged on two connecting holes on the top sealing plate 4 and the bottom sealing plate 5 in a penetrating manner and are screwed by nuts; the same second screw rod 14 is respectively arranged in the wiring holes of the power supply wiring blocks 10 connected with the cathode boxes 1 and the wiring holes of the wiring blocks connected with the anode plates 2 in a penetrating way, a conductive support column 16 is sleeved on the rod body of the second screw rod 14 between two adjacent power supply wiring blocks 10, and the tail end of the second screw rod 14 is locked through a second nut 15; the plurality of water collecting ports 9 at the top of the top-layer end sealing plate 4 (the water collecting ports 9 carried by each top vertical diverter 6 of the cathode box 1 combined together) are connected through the same water collecting pipe 17; the water collecting ports 9 at the bottom of the bottom sealing plate 5 are connected with the same water discharging pipe 18.
The specific working process and principle of the electrophoresis enhanced electrocatalytic oxidation advanced treatment device provided by the invention are as follows: the wastewater enters the reaction device through the water collecting port 9 and the vertical flow divider 6 on the top-layer end sealing plate 4, and the vertical flow divider 6 distributes water flow to two sides of the flow channel, the wastewater undergoes electrocatalytic oxidation reaction through the inner walls of the cathode box body 1 and the anode plate 2 on two sides of the flow channel, pollutants in the wastewater are gradually oxidized and decomposed, meanwhile, the cathode box body 1 and the anode plate 2 generate electrophoresis effect on the wastewater, polar pollutants in the water body move towards electrodes opposite to the polar pollutants, and water flow distribution with high pollutant concentration and low pollutant concentration in the middle of the flow channel on two sides of the flow channel is formed. The wastewater flow is further separated into fresh water flow and concentrated water flow through the horizontal flow divider 8, the concentrated water flow flows through the two sides of the flow channel and is mixed with the newly-fed wastewater, so that the wastewater concentration is increased, the electrocatalytic oxidation treatment efficiency is improved, and the cycle treatment is performed; and fresh water flows to the two sides of the next layer of electrocatalytic oxidation flow channel through the water inlet of the vertical flow divider 6 in the middle of the flow channel, and is treated in the same way as the flow. The pollutant concentration in the wastewater is reduced layer by layer through the high-efficiency treatment of the multi-layer electrocatalytic oxidation annular flow channel, finally, water flow reaches the bottom layer, and is completely discharged by the vertical drainer 7 after primary circulation electrocatalytic oxidation treatment, and the effluent quality treatment reaches the standard and the wastewater treatment is completed.
The invention can adjust the layering number, the number of the horizontal flow splitters 8 and the number of the devices according to the different quality and the water quantity of the wastewater. If the concentration of the wastewater quality pollutants is low, 3-5 electrocatalytic oxidation layers can be arranged on the premise of ensuring that the effluent reaches the standard, the layer height is set shorter, the length of the total flow passage is shorter, the water inlet pressurization and electrocatalytic oxidation energy consumption can be reduced, the electrode plate area is saved, and the investment and the operation cost are reduced to the maximum extent. If the concentration of the wastewater quality pollutants is high, more than 5 electrocatalytic oxidation layers should be arranged to ensure that the water body fully electrocatalytic oxidation reaction in the device and the yielding water reaches the standard. If necessary, the multiple sets of the water treatment device can be connected in series or added with backflow for use, so as to ensure that the quality of the discharged water reaches the standard. Because of the structural parameter limitation of the electrocatalytic oxidation technology, the distance between the negative electrode and the positive electrode is not suitable to be increased, and if the amount of wastewater is large, a parallel high-efficiency electrocatalytic oxidation device is additionally arranged to treat a large amount of wastewater synchronously and efficiently. In addition, when the polarity of pollutants in the wastewater is weaker and the electrophoresis separation effect of the device is poor, the electrophoresis separation effect can be enhanced by adopting a mode of increasing the number of the horizontal flow splitters 8, and the high-efficiency treatment of electrocatalytic oxidation is realized.
The principles and embodiments of the present invention have been described with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In summary, the present description should not be construed as limiting the invention.
Claims (10)
1. An electrophoresis enhancement electrocatalytic oxidation advanced treatment device is characterized in that: the device comprises a cathode box body, an anode plate, a layered partition plate, a top-layer end sealing plate, a bottom-layer end sealing plate, a vertical diverter, a vertical drainer and a horizontal diverter; the top and the bottom of the cathode box body are respectively blocked by the top layer end blocking plate and the bottom layer end blocking plate, the layered partition plates are transversely arranged, a plurality of layered partition plates are vertically arranged in the cathode box body, the interior of the cathode box body is separated by a plurality of mutually independent electrocatalytic oxidation layers by the layered partition plates, the anode plate is arranged between the front side plate and the rear side plate of the cathode box body, the top end of the anode plate is contacted with the top layer end blocking plate, the bottom end of the anode plate sequentially passes through each layered partition plate and then is contacted with the bottom layer end blocking plate, and two sides of the anode plate are separated from the cathode box body, so that a circulating flow channel is separated by the anode plate in each electrocatalytic oxidation layer;
the vertical diverter comprises a single water inlet pipe arranged at the top and two diversion water outlet pipes arranged at the two sides of the bottom of the water inlet pipe, the head ends of the water inlet pipe are respectively provided with a water inlet, the head ends of the two diversion water outlet pipes are respectively provided with a water outlet, the top layer sealing plate at one side of the anode plate and each layered partition plate are respectively and sequentially spliced with the vertical diverter, the vertical diverter is spliced on the top layer sealing plate and the layered partition plate through the water inlet pipe, the water inlet on the water inlet pipe of each vertical diverter is respectively positioned at the top layer sealing plate and the top of each layered partition plate, the water inlet of the vertical diverter at the top layer sealing plate is communicated with organic wastewater, the horizontal diverter is a funnel-shaped water inlet pipe, the width of the water inlet at the tail end of the horizontal diverter is larger than the width of the water outlet at the head end, the top of each layered partition plate is respectively and sequentially spliced with a plurality of horizontal diverters at the tail end, and the water inlets of the horizontal diverter positioned at the tail end are sequentially communicated with the water inlets of the vertical diverter at the top of the layered partition plate;
the vertical drainer is arranged on the bottom sealing end plate in a penetrating manner, one end of the vertical drainer, which extends into the top of the bottom sealing end plate, is a water inlet end, one end of the vertical drainer, which is positioned at the bottom of the bottom sealing end plate, is a water outlet end, and the water inlet end of the vertical drainer is positioned between the two diversion water outlet pipes of the vertical diverter.
2. The electrophoresis-enhanced electrocatalytic oxidation advanced treatment device according to claim 1, wherein: the cathode box body is made of conductive metal, and the anode plate is an oxide coating electrode plate.
3. The electrophoresis-enhanced electrocatalytic oxidation advanced treatment device according to claim 1, wherein: the layered separator, the top seal plate, the bottom seal plate, the vertical diverter, the vertical drainer and the horizontal diverter are made of insulating materials.
4. The electrophoresis-enhanced electrocatalytic oxidation advanced treatment device according to claim 1, wherein: the vertical central lines of the vertical flow splitters coincide, the two flow splitting water outlet pipes of each vertical flow splitter are symmetrically arranged on two sides of the bottom of the water inlet pipe, and the central lines of the water inlet and the water outlet of the horizontal flow splitter and the water inlet of the water inlet pipe of the vertical flow splitter coincide.
5. The electrophoresis-enhanced electrocatalytic oxidation advanced treatment device according to claim 1, wherein: the water inlet pipe and the water distribution outlet pipe of the vertical flow divider are rectangular pipes.
6. The electrophoresis-enhanced electrocatalytic oxidation advanced treatment device according to claim 1, wherein: the water inlet of the vertical diverter at the top-layer end sealing plate is connected with a water collecting port, and the water outlet at the water draining end of the vertical drainer is also connected with a water collecting port.
7. The electrophoresis-enhanced electrocatalytic oxidation advanced treatment device according to claim 1, wherein: the top layer end sealing plate and the bottom layer end sealing plate are larger than the cross section area of the cathode box body, the top layer end sealing plate and the bottom layer end sealing plate are protruded out of the periphery of the upper end face and the lower end face of the cathode box body, a plurality of connecting holes are distributed on the periphery of the upper end face and the lower end face of the cathode box body, and a plurality of first screws penetrate through the two connecting holes which are opposite to each other on the top layer end sealing plate and the bottom layer end sealing plate respectively and are screwed down through first nuts.
8. The electrophoresis-enhanced electrocatalytic oxidation advanced treatment device according to claim 6, wherein: the top of the top-layer end sealing plate is provided with a power supply wiring block which is respectively connected with the cathode box body and the anode plate, and the power supply wiring block is provided with wiring holes; and an exhaust port is also arranged on the top-layer end sealing plate.
9. The electrophoresis-enhanced electrocatalytic oxidation advanced treatment device according to claim 8, wherein: the water collecting port at the top of the top-layer end sealing plate is connected with a water collecting pipe; the water collecting port at the bottom of the bottom sealing plate is connected with a drain pipe.
10. The electrophoresis-enhanced electrocatalytic oxidation advanced treatment device according to claim 9, wherein: the cathode boxes provided with the anode plates, the layered separator, the vertical flow divider, the vertical water drainer and the horizontal flow divider are sequentially arranged in a plurality along the width direction, the top ends and the bottom ends of the cathode boxes share one top-layer sealing plate and one bottom-layer sealing plate, the top-layer sealing plate and the bottom-layer sealing plate protrude out of the periphery of each cathode box, a plurality of connecting holes are respectively formed in the periphery of each cathode box, and a plurality of screws respectively penetrate through the two connecting holes which are opposite to each other on the top-layer sealing plate and the bottom-layer sealing plate and are screwed by nuts;
the wire connecting holes of the power supply wire connecting blocks connected with the cathode boxes and the wire connecting holes of the power supply wire connecting blocks connected with the anode plates are respectively provided with the same second screw rod in a penetrating way, the rod bodies of the second screw rods between two adjacent wire connecting blocks are sleeved with a conductive support column, and the tail ends of the second screw rods are locked through second nuts;
the water collecting ports at the top of the top-layer end sealing plate are connected through the same water collecting pipe; and a plurality of water collecting ports at the bottom of the bottom sealing plate are connected with the same water draining pipe.
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