CN114380354B - Device for treating wastewater by photoelectrocatalytic oxidation combination and application method thereof - Google Patents
Device for treating wastewater by photoelectrocatalytic oxidation combination and application method thereof Download PDFInfo
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- CN114380354B CN114380354B CN202111468210.XA CN202111468210A CN114380354B CN 114380354 B CN114380354 B CN 114380354B CN 202111468210 A CN202111468210 A CN 202111468210A CN 114380354 B CN114380354 B CN 114380354B
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- lamp tube
- oxidation
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- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 117
- 230000003647 oxidation Effects 0.000 title claims abstract description 114
- 239000002351 wastewater Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims description 13
- 230000003197 catalytic effect Effects 0.000 claims abstract description 76
- 239000010865 sewage Substances 0.000 claims abstract description 32
- 238000011282 treatment Methods 0.000 claims abstract description 30
- 238000004140 cleaning Methods 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 230000000694 effects Effects 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 238000005086 pumping Methods 0.000 claims abstract description 11
- 238000007667 floating Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 230000001699 photocatalysis Effects 0.000 claims description 13
- 239000003054 catalyst Substances 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 230000000630 rising effect Effects 0.000 claims description 7
- 238000000149 argon plasma sintering Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000006479 redox reaction Methods 0.000 claims description 6
- 239000007800 oxidant agent Substances 0.000 claims description 4
- 230000001590 oxidative effect Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000011941 photocatalyst Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 abstract description 5
- 239000013049 sediment Substances 0.000 abstract description 5
- 239000003814 drug Substances 0.000 abstract 1
- 208000034699 Vitreous floaters Diseases 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000004065 wastewater treatment Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- -1 hydroxyl radicals Chemical class 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000002957 persistent organic pollutant Substances 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000007146 photocatalysis Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000220317 Rosa Species 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000011284 combination treatment Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
-
- 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
- C02F1/4676—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electroreduction
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/32—Details relating to UV-irradiation devices
- C02F2201/324—Lamp cleaning installations, e.g. brushes
Landscapes
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model discloses a device for treating wastewater by combining photoelectrocatalysis and oxidation, and belongs to the technical field of sewage treatment equipment. The device for treating the wastewater by combining the photoelectrocatalytic oxidation comprises a catalytic oxidation box, a filtering box and a dosing box which are connected in sequence, and also comprises an electrode plate group which is arranged at the opening of the top of the catalytic oxidation box and is arranged below the liquid level; the ultraviolet lamp tube is arranged at the opening at the top of the catalytic oxidation box and is arranged below the liquid level; the intermittent air pumping mechanism comprises an air pump arranged on the outer wall of the catalytic oxidation box, a booster pipe arranged at the positive pressure end of the air pump and arranged on the inner wall of the bottom of the catalytic oxidation box, and an air storage cylinder arranged on the inner wall of the bottom of the catalytic oxidation box and communicated with the booster pipe; the utility model ensures the use effect of the lamp tube by cleaning the adhesion matters on the surface of the ultraviolet lamp tube, further improves the sewage treatment effect by salvaging the floating matters and disturbing the flow of the sediment, and ensures the treatment quality by adding medicine to the wastewater after the photoelectric catalytic oxidation.
Description
Technical Field
The utility model relates to the technical field of wastewater treatment equipment, in particular to a device for treating wastewater by combining photoelectrocatalytic oxidation and a use method thereof.
Background
The organic matters in the photocatalytic oxidation wastewater are based on a catalyst to generate hydroxyl free radicals under the irradiation of ultraviolet rays, so that pollutants in the wastewater are oxidized, and the effect of purifying the wastewater is achieved. The technology can be arranged at the front end of wastewater treatment for pretreatment so as to improve the biodegradability of wastewater; can also be arranged at the tail end of wastewater treatment to realize advanced wastewater treatment and purification. The method for removing organic pollutants in the wastewater by using the photocatalysis purification technology has the following characteristics: the reaction condition is mild (normal temperature and normal pressure); the organic pollutant can be decomposed into inorganic small molecules such as carbon dioxide, water and the like, and the purifying effect is thorough; the salt is not increased.
The photocatalysis oxidation technology is one of the water treatment technologies most concerned by students at home and abroad in recent decades, and has the characteristics of no secondary pollution, low price and the like. The principle of photocatalytic degradation of wastewater is as follows: under the irradiation of ultraviolet light, electrons on a valence band of the semiconductor material such as TiO2 are excited to a conduction band to generate electron-hole pairs, and active substances such as hydroxyl radicals, oxygen radicals and the like are generated in water, so that the semiconductor material has strong oxidation-reduction capability.
The electrocatalytic oxidation technology is also a high-efficiency clean water treatment technology for degrading organic pollutants, and has the characteristics of strong oxidative decomposition capability, low operation energy consumption, environmental friendliness and the like. The principle of electrocatalytic oxidative degradation of wastewater is as follows: the direct current electric field is formed in the reaction tank by supplying power through an external power supply, so that the catalyst filled in the reaction tank is induced to be charged under the action of the electric field to form a particle electrode, and under the electrolysis and catalysis actions of the main electrode of the reaction tank and the particle electrode, dissolved oxygen in water in the reaction tank is converted into a strong oxidant hydroxyl free radical (OH), and organic matters which are difficult to degrade in the wastewater can be oxidatively decomposed through the hydroxyl free radical, so that the organic matters are converted into CO2 and H2O. Hydroxyl radicals are extremely reactive particles that can oxidize and mineralize various organic substances without selection.
Among the prior art, the utility model patent of patent application number CN201520984852.9 discloses a "wastewater treatment device of photoelectrocatalysis strong oxidation", which comprises a box body, the equidistance is equipped with a plurality of water conservancy diversion baffles in the box, the box inboard surface is equipped with a plurality of aeration heads that distribute evenly, the box inboard surface is equipped with a plurality of electrode plate groups that distribute evenly, the connecting pipe that is equipped with outside the box, a plurality of aeration pipes of inserting in the box that connect on the connecting pipe equidistance, the box inboard surface is equipped with a plurality of ultraviolet lamp groups that distribute evenly, two sets of openings that are relative are opened respectively to the box outside both sides surface, insert respectively in the opening and add pencil, drain pipe, inlet tube and mud pipe. The utility model has the beneficial effects of simple structure and strong practicability, but still has the defects:
(1) The lack of a cleaning device for the adherends on the surface of the ultraviolet lamp tube influences the using effect of the lamp tube;
(2) The floats and the sediments in the sewage treatment process can not be treated in time, which is not beneficial to improving the sewage treatment effect;
(3) The lack of post-treatment devices affects the treatment quality of sewage.
Disclosure of Invention
The utility model aims to solve the problems that in the prior art, a cleaning device for the surface of an ultraviolet lamp tube lacks adhesion substances and influences the using effect of the lamp tube; the lack of floaters and precipitates in the sewage treatment process can not be treated in time, which is not beneficial to improving the sewage treatment effect; the problem of influencing the treatment quality of sewage due to the lack of a post-treatment device is solved, and the device for treating the wastewater by combining photoelectrocatalytic oxidation is provided.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the device for treating wastewater by combining photoelectrocatalytic oxidation comprises a catalytic oxidation box, a filter box and a dosing box which are connected in sequence,
an electrode plate group which is arranged at the opening of the top of the catalytic oxidation box and is arranged below the liquid level;
the ultraviolet lamp tube is arranged at the opening at the top of the catalytic oxidation box and is arranged below the liquid level;
the intermittent pumping mechanism comprises an air pump arranged on the outer wall of the catalytic oxidation box, a booster pipe arranged at the positive pressure end of the air pump and arranged on the inner wall of the bottom of the catalytic oxidation box, an air storage cylinder arranged on the inner wall of the bottom of the catalytic oxidation box and communicated with the booster pipe, an air outlet pipe arranged at the air outlet end of the air storage cylinder and provided with a one-way valve, shunt pipes uniformly distributed around the bottom end of the electrode plate group electrode plate and an elevating turbulence assembly matched with the air storage cylinder, wherein the shunt pipes are arranged at the air outlet end of the air outlet pipe;
the cleaning component is arranged on the outer wall of the lamp tube of the ultraviolet lamp tube and is connected with the lifting end of the lifting turbulence component;
and the floater salvaging mechanism is arranged on one side of the catalytic oxidation box, which is close to the filter box.
Preferably, the device also comprises a water pump which is communicated with the filter box and the dosing box.
Preferably, the lifting turbulence assembly comprises a piston intermittently matched with the inner wall of the air cylinder, a tension spring connected between the piston and the inner wall of the bottom of the air cylinder, and a screw vertically arranged at the top of the piston and extending outwards through the air cylinder, wherein the top of the air cylinder is also connected with a thread seat in threaded fit with the screw, and the outer wall of the thread seat is connected with turbulence sheets uniformly distributed.
Preferably, the screw is arranged at one end outside the air cylinder and is further rotationally connected with a supporting rod, the supporting end of the supporting rod is connected with an ultraviolet light divergence column, the ultraviolet light divergence column is positioned between the electrode plate group and the ultraviolet lamp tube group, and the ultraviolet light divergence column is slidably connected to the inner wall of the catalytic oxidation box.
Preferably, the cleaning assembly comprises a cleaning ring which is sleeved on the transparent structure of the outer wall of the lamp tube of the ultraviolet lamp tube, and the outer wall of the cleaning ring is connected with a connecting frame which is connected with the supporting end of the supporting rod.
Preferably, the floater salvaging mechanism comprises a driven shaft, a salvaging bucket, a driven gear, a torsion spring and a driving half-gear tooth gear, wherein the driven shaft is connected to the inner wall of the catalytic oxidation box in a rotating mode and extends outwards, the salvaging bucket is arranged on the outer wall of the driven shaft and is connected with the extending end of the driven shaft, the torsion spring is connected between the driven gear and the outer wall of the catalytic oxidation box and is sleeved on the outer wall of the driven shaft, and the driving half-gear tooth gear is further arranged on the outer wall of the catalytic oxidation box and is connected with the outer wall of the driven gear.
Preferably, when the torsion spring is in a natural state, the salvage bucket is arranged below the liquid surface of the catalytic oxidation box; when the driving half-gear teeth are meshed with the driven gear, the torsion spring is tightened, and the salvage bucket is turned towards the top opening of the filtering box.
Preferably, a drain valve is arranged on the outer wall of the bottom of the catalytic oxidation box, and a filter screen is arranged on the inner side wall of the filter box.
Preferably, a dosing tank with an electromagnetic valve is arranged at the opening of the top of the dosing tank through a mounting frame, and a photocatalytic oxidant coating is arranged on the surface of the electrode plate group.
The application method of the device for treating wastewater by combining photoelectrocatalytic oxidation comprises the following steps:
s1: the wastewater to be treated flows into a catalytic oxidation box, the power supply of the electrode plate group and the ultraviolet lamp tube is started, direct current is introduced into the wastewater to enable oxidation-reduction reaction to occur on the cathode and anode of the electrode plate group, and when the current density is high enough, organic matters in the water can be removed by oxidation, so that the biodegradability of the wastewater is improved, and the subsequent biological treatment is facilitated; meanwhile, ultraviolet light emitted by the ultraviolet lamp tube group generates oxidation-reduction reaction on the photocatalyst on the surface of the electrode plate group, so that organic matters in water can be further removed by oxidation;
s2: the intermittent air pumping mechanism is started, the air pump is firstly started, high-pressure air is pumped into the air storage cylinder through the booster pipe, along with the rising of the pressure in the air storage cylinder, the piston rises in a spiral mode under the cooperation of the screw rod at the top and the thread seat, the tension spring between the piston and the air storage cylinder stretches to drive the thread seat to rotate along the air storage cylinder, the spoiler on the outer wall of the thread seat is driven to spoiler sewage, the fact that particulate matters are deposited on the inner wall of the bottom of the catalytic oxidation box is avoided, and the sewage treatment effect is guaranteed;
s3: the supporting rod is driven to move upwards in the spiral rising process of the piston until the piston moves to the joint of the air outlet pipe and the air storage cylinder, high-pressure air is pumped out of the air storage cylinder through the air outlet pipe and the shunt pipe, the pumped air generates bubbles around the electrode plates of the electrode plate group in sewage, takes away the floating of the catalyst participating in the photoelectrocatalytic oxidation reaction, and always keeps the stable photoelectrocatalytic oxidation function of the electrode plate group;
s4: the floating catalyst floats on the surface of the sewage, when the driving half gear and the driven gear are separated, the torsion spring automatically restores the original state, at the moment, the salvage bucket is arranged in the catalytic oxidation box, along with the rotation of the driving half gear until being meshed with the driven gear, the salvage bucket gradually turns towards the top of the filtration box along with the rotation of the driving half gear, and along with the increase of the turning angle of the salvage bucket, the particle salvage matters in the salvage bucket fall into the filtration net, so that the treatment function of the floating matters on the surface of the sewage is realized, and the catalytic function of the catalytic oxidation box is further maintained;
s5: the ultraviolet light divergent column is driven to move upwards along the inner side wall of the catalytic oxidation box while the supporting rod moves upwards, and the ultraviolet light divergent column changes the divergent range of the ultraviolet lamp tube along with the change of the position of the ultraviolet light divergent column, so that the utilization efficiency of the ultraviolet lamp tube is improved, and the photocatalytic oxidation function of the catalytic oxidation box is improved;
s6: when moving on the support rod, the connecting frame drives the cleaning ring to move along the surface of the lamp tube of the ultraviolet lamp tube, so that the cleaning function of the surface of the lamp tube of the ultraviolet lamp tube is realized, and the use effect of the lamp tube is ensured.
Compared with the prior art, the utility model provides a device for treating wastewater by combining photoelectrocatalytic oxidation, which has the following beneficial effects:
1. the device for treating wastewater by combining photoelectrocatalytic oxidation realizes the function of treating wastewater by combining photoelectrocatalytic oxidation through the set electrode plate group and the ultraviolet lamp tube.
2. According to the device for treating wastewater by combining photoelectrocatalysis and oxidation, the turbulent flow function at the bottom of the catalytic oxidation box is realized through the set turbulent flow sheet, and the problem that sediment in sewage affects the treatment quality is effectively avoided.
3. The device for treating wastewater by combining photoelectrocatalytic oxidation maintains stable photoelectrocatalytic oxidation function of the electrode plate group through bubbles around the electrode plate pumped by the intermittent pumping mechanism.
4. This device of photoelectrocatalysis oxidation combination treatment waste water through the floater fishing mechanism that sets up, has realized the salvage processing function of sewage surface floater, has solved the floater and the precipitate in the sewage treatment process among the prior art and can not in time handle, influences the problem of sewage treatment effect.
5. According to the device for treating wastewater by combining photoelectrocatalysis and oxidation, the utilization efficiency and the action range of the ultraviolet lamp tube are enlarged through the arranged reciprocating lifting ultraviolet light divergence column, and the problem of low utilization efficiency of the ultraviolet lamp tube in the prior art is solved.
6. This photoelectrocatalysis oxidation combination handles device of waste water, through the clearance subassembly that sets up, realized the attachment clearance function on ultraviolet tube surface, solved among the prior art ultraviolet tube surface lack the cleaning device of adhesion thing, influence the problem of the result of use of fluorescent tube.
7. According to the device for treating wastewater by combining photoelectrocatalysis and oxidation, the quality of wastewater treatment is improved through the post-treatment design of the dosing tank and the dosing box.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a second schematic diagram of the structure of the present utility model;
FIG. 3 is a third schematic diagram of the structure of the present utility model;
FIG. 4 is an enlarged schematic view of the portion A of FIG. 3 according to the present utility model;
FIG. 5 is a fourth schematic diagram of the structure of the present utility model;
FIG. 6 is a schematic view showing the internal structure of the catalytic oxidation tank according to the present utility model;
FIG. 7 is an enlarged schematic view of the portion B of FIG. 6 according to the present utility model;
FIG. 8 is a second schematic view of the internal structure of the catalytic oxidation tank according to the present utility model;
FIG. 9 is an enlarged schematic view of the portion C of FIG. 8 in accordance with the present utility model;
FIG. 10 is a third schematic view of the internal structure of the catalytic oxidation tank according to the present utility model;
fig. 11 is a schematic view of the internal structure of the gas tank of the present utility model.
In the figure: 10. a catalytic oxidation tank; 110. a blow-down valve; 20. a filter box; 210. a water pump; 220. a filter screen; 30. a dosing box; 310. a dosing tank; 40. an electrode plate group; 50. ultraviolet lamp tube group; 60. an intermittent pumping mechanism; 610. an air pump; 620. a pressurizing pipe; 630. an air cylinder; 640. an air outlet pipe; 650. a shunt; 660. lifting turbulence assembly; 661. a piston; 662. a tension spring; 663. a screw; 664. a screw seat; 665. a spoiler; 666. a support rod; 667. an ultraviolet light divergent column; 670. cleaning the assembly; 671. cleaning the ring; 672. a connecting frame; 70. a float salvaging mechanism; 710. a driven shaft; 720. salvaging a bucket; 730. a driven gear; 740. a torsion spring; 750. a half-tooth gear is driven.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Example 1:
referring to fig. 1 to 11, an apparatus for treating wastewater by photoelectrocatalytic oxidation combination includes a catalytic oxidation tank 10, a filtration tank 20, and a dosing tank 30 connected in sequence, further includes,
an electrode plate group 40 installed at the top opening of the catalytic oxidation tank 10 and disposed below the liquid surface;
an ultraviolet lamp tube assembly 50 installed at the top opening of the catalytic oxidation tank 10 and having an ultraviolet lamp disposed below the liquid surface;
the intermittent pumping mechanism 60 comprises an air pump 610 arranged on the outer wall of the catalytic oxidation tank 10, a pressurizing pipe 620 arranged at the positive pressure end of the air pump 610 and arranged on the inner wall of the bottom of the catalytic oxidation tank 10, an air storage cylinder 630 arranged on the inner wall of the bottom of the catalytic oxidation tank 10 and communicated with the pressurizing pipe 620, an air outlet pipe 640 arranged at the air outlet end of the air storage cylinder 630 and provided with a one-way valve, shunt pipes 650 arranged at the air outlet end of the air outlet pipe 640 and uniformly distributed around the bottom end of the electrode plates of the electrode plate group 40, and a lifting turbulence assembly 660 matched with the air storage cylinder 630;
the cleaning component 670 is arranged on the outer wall of the lamp tube of the ultraviolet lamp tube assembly 50 and is connected with the lifting end of the lifting turbulence component 660;
a float salvaging mechanism 70 is installed at one side of the catalytic oxidation tank 10 near the filter tank 20.
Referring to fig. 1-5, a water pump 210 is further included to communicate the filter tank 20 with the dosing tank 30 for pumping the catalytic oxidized sewage filtered by the filter tank 20 into the dosing tank 30 for treatment.
Referring to fig. 6-11, the lifting turbulence assembly 660 comprises a piston 661 intermittently matched with the inner wall of the air reservoir 630, a tension spring 662 connected between the piston 661 and the inner wall of the bottom of the air reservoir 630, and a screw 663 vertically arranged at the top of the piston 661 and extending outwards through the air reservoir 630, wherein the top of the air reservoir 630 is also connected with a screw seat 664 in threaded fit with the screw 663, the outer wall of the screw seat 664 is connected with turbulence sheets 665 which are uniformly distributed, the turbulence function of the bottom of the catalytic oxidation tank 10 is realized through the provided turbulence sheets 665, and the problem that the treatment quality is affected by sediments in sewage is effectively avoided.
Referring to fig. 6 to 11, one end of the screw 663 disposed outside the air reservoir 630 is further rotatably connected with a support rod 666, the support end of the support rod 666 is connected with an ultraviolet light diverging column 667, the ultraviolet light diverging column 667 is located between the electrode plate group 40 and the ultraviolet light tube group 50, the ultraviolet light diverging column 667 is slidably connected to the inner wall of the catalytic oxidation tank 10, and the utilization efficiency and the action range of the ultraviolet light tube group 50 are enlarged through the provided reciprocating lifting ultraviolet light diverging column 667, so that the problem of low utilization efficiency of the ultraviolet light tube in the prior art is solved.
Referring to fig. 6 to 11, the cleaning assembly 670 includes a cleaning ring 671 having a transparent structure and sleeved on the outer wall of the lamp tube of the ultraviolet lamp tube unit 50, a connection frame 672 connected to the support end of the support rod 666 is connected to the outer wall of the cleaning ring 671, and the cleaning assembly 670 is provided to achieve the function of cleaning the attachments on the surface of the ultraviolet lamp tube unit 50, thereby solving the problem that the cleaning device for the attachment is lack on the surface of the ultraviolet lamp tube in the prior art, and affecting the use effect of the lamp tube.
Referring to fig. 1 to 5, the bottom outer wall of the catalytic oxidation tank 10 is provided with a drain valve 110, the inner side wall of the filter tank 20 is provided with a filter screen 220, the top opening of the dosing tank 30 is provided with a dosing tank 310 equipped with an electromagnetic valve through a mounting frame, and the surface of the electrode plate group 40 is provided with a photocatalytic oxidant coating.
The wastewater to be treated flows into the catalytic oxidation tank 10, the power supplies of the electrode plate group 40 and the ultraviolet lamp tube 50 are started, direct current is introduced into the wastewater to enable oxidation-reduction reaction to occur on the anode and cathode of the electrode plate group 40, and when the current density is high enough, organic matters in the water can be removed by oxidation, so that the biodegradability of the wastewater is improved, and the subsequent biological treatment is facilitated; meanwhile, the ultraviolet light emitted by the ultraviolet lamp tube 50 generates oxidation-reduction reaction on the photocatalyst on the surface of the electrode plate group 40, so that organic matters in water can be further removed by oxidation; the intermittent air pumping mechanism 60 is started, firstly, the air pump 610 is started, the air pump 610 pumps high-pressure air into the air storage cylinder 630 through the pressurizing pipe 620, along with the rising of the pressure in the air storage cylinder 630, the piston 661 rises in a spiral mode under the cooperation of the screw 663 at the top and the thread seat 664, the tension spring 662 between the piston 661 and the air storage cylinder 630 stretches to drive the thread seat 664 to rotate along the air storage cylinder 630, the spoiler 665 on the outer wall of the thread seat 664 is driven to spoiler sewage, particulate matters are prevented from being deposited on the inner wall at the bottom of the catalytic oxidation tank 10, and the sewage treatment effect is guaranteed; the supporting rod 666 is driven to move upwards in the spiral rising process of the piston 661 until the piston 661 moves to the joint of the air outlet pipe 640 and the air storage cylinder 630, high-pressure air is pumped out of the air storage cylinder 630 through the air outlet pipe 640 by the shunt pipe 650, the pumped air generates bubbles around the electrode plates of the electrode plate group 40 in sewage, takes away the catalyst participating in the photocatalytic oxidation reaction to float upwards, and always keeps the stable photocatalytic oxidation function of the electrode plate group 40; the ultraviolet light scattering column 667 is driven to move upwards along the inner side wall of the catalytic oxidation box 10 while the supporting rod 666 moves upwards, and along with the change of the position of the ultraviolet light scattering column 667, the ultraviolet light scattering column 667 changes the scattering range of the ultraviolet lamp tube group 50, so that the utilization efficiency of the ultraviolet lamp tube group 50 is improved, and the photocatalytic oxidation function of the catalytic oxidation box 10 is improved; while moving on the support rod 666, the connection frame 672 drives the cleaning ring 671 to move along the surface of the lamp tube of the ultraviolet lamp tube 50, thereby realizing the cleaning function of the surface of the lamp tube of the ultraviolet lamp tube 50 and ensuring the use effect of the lamp tube.
Example 2:
referring to fig. 1 to 5, an apparatus for treating wastewater by combining photoelectrocatalytic oxidation is substantially the same as that of embodiment 1, and further, the float salvage mechanism 70 comprises a driven shaft 710 rotatably connected to the inner wall of the catalytic oxidation tank 10 and extending outwards, a salvage bucket 720 having a hollow structure and mounted on the outer wall of the driven shaft 710, a driven gear 730 mounted on the outer wall of the catalytic oxidation tank 10 and connected to the extension end of the driven shaft 710, and a torsion spring 740 connected between the driven gear 730 and the outer wall of the catalytic oxidation tank 10 and sleeved on the outer wall of the driven shaft 710, wherein a driving half-gear 750 is mounted on the outer wall of the catalytic oxidation tank 10 and is in contact with the outer wall of the driven gear 730, and when the torsion spring 740 is in a natural state, the salvage bucket 720 is placed below the liquid surface of the catalytic oxidation tank 10; when the driving half-tooth gear 750 and the driven gear 730 are meshed, the torsion spring 740 is tightened, the salvage bucket 720 turns over towards the top opening of the filter box 20, and the salvage treatment function of the floating matters on the surface of the sewage is realized through the floating matters salvage mechanism 70, so that the problem that the floating matters and the sediments in the sewage treatment process in the prior art cannot be treated in time, and the sewage treatment effect is affected is solved;
the catalyst that floats on the sewage surface, when half tooth gear 750 of drive and driven gear 730 separate, torsional spring 740 resumes the original state voluntarily, salvage fill 720 is arranged in catalytic oxidation case 10 this moment, along with the rotation of half tooth gear 750 of drive, until when meshing with driven gear 730, salvage fill 720 overturns towards the rose box 20 top gradually along with the rotation of half tooth gear 750 of drive, along with salvage fill 720 flip angle's increase, the granule salvage thing in the salvage fill 720 falls into on the filter screen 220, realize the processing function of sewage surface floater, help further keep catalytic oxidation case 10's catalytic function.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The device for treating wastewater by combining photoelectrocatalytic oxidation is characterized by comprising a catalytic oxidation box (10), a filter box (20) and a dosing box (30) which are connected in sequence,
an electrode plate group (40) which is arranged at the opening of the top of the catalytic oxidation box (10) and is arranged below the liquid level;
an ultraviolet lamp tube group (50) which is arranged at the opening of the top of the catalytic oxidation box (10) and is arranged below the liquid level;
the intermittent air pumping mechanism (60) comprises an air pump (610) arranged on the outer wall of the catalytic oxidation box (10), a pressurizing pipe (620) arranged at the positive pressure end of the air pump (610) and arranged on the inner wall of the bottom of the catalytic oxidation box (10), an air storage cylinder (630) arranged on the inner wall of the bottom of the catalytic oxidation box (10) and communicated with the pressurizing pipe (620), an air outlet pipe (640) arranged at the air outlet end of the air storage cylinder (630) and provided with a one-way valve, shunt pipes (650) uniformly distributed around the bottom end of an electrode plate of the electrode plate group (40) and lifting turbulence components (660) matched with the air storage cylinder (630), wherein the shunt pipes (650) are arranged at the air outlet end of the air outlet pipe (640);
the cleaning component (670) is arranged on the outer wall of the lamp tube of the ultraviolet lamp tube assembly (50) and is connected with the lifting end of the lifting turbulence component (660);
a float salvaging mechanism (70) which is arranged on one side of the catalytic oxidation box (10) close to the filter box (20);
the water pump (210) is communicated with the filter box (20) and the dosing box (30);
the lifting turbulence assembly (660) comprises a piston (661) intermittently matched with the inner wall of the air storage cylinder (630), a tension spring (662) connected between the piston (661) and the inner wall of the bottom of the air storage cylinder (630), and a screw rod (663) vertically arranged at the top of the piston (661) and extending outwards through the air storage cylinder (630), wherein the top of the air storage cylinder (630) is also connected with a thread seat (664) in threaded fit with the screw rod (663), and the outer wall of the thread seat (664) is connected with turbulence sheets (665) which are uniformly distributed;
one end of the screw rod (663) arranged outside the air storage cylinder (630) is also rotationally connected with a supporting rod (666), the supporting end of the supporting rod (666) is connected with an ultraviolet light divergence column (667), the ultraviolet light divergence column (667) is positioned between the electrode plate group (40) and the ultraviolet lamp tube group (50), and the ultraviolet light divergence column (667) is slidably connected to the inner wall of the catalytic oxidation box (10);
the cleaning assembly (670) comprises a cleaning ring (671) which is sleeved on the transparent structure of the outer wall of the lamp tube of the ultraviolet lamp tube assembly (50), and the outer wall of the cleaning ring (671) is connected with a connecting frame (672) connected with the supporting end of the supporting rod (666).
2. The device for treating wastewater by combining photoelectrocatalytic oxidation according to claim 1, wherein the float salvaging mechanism (70) comprises a driven shaft (710) which is connected to the inner wall of the catalytic oxidation tank (10) in a rotating way and extends outwards, a salvaging bucket (720) which is arranged on the outer wall of the driven shaft (710) and is of a hollow structure, a driven gear (730) which is arranged on the outer wall of the catalytic oxidation tank (10) and is connected with the extending end of the driven shaft (710), and a torsion spring (740) which is connected between the driven gear (730) and the outer wall of the catalytic oxidation tank (10) and is sleeved on the outer wall of the driven shaft (710), and a driving half-gear (750) which is connected with the outer wall of the driven gear (730) is also arranged on the outer wall of the catalytic oxidation tank (10).
3. The device for treating wastewater by combining photoelectrocatalytic oxidation according to claim 2, wherein when the torsion spring (740) is in a natural state, the salvage bucket (720) is arranged below the liquid surface of the catalytic oxidation tank (10); when the teeth of the driving half-tooth gear (750) are meshed with the driven gear (730), the torsion spring (740) is tightened, and the salvage bucket (720) is turned towards the top opening of the filter box (20).
4. A device for treating wastewater by photoelectrocatalytic oxidation combination according to claim 3, wherein a drain valve (110) is arranged on the outer wall of the bottom of the catalytic oxidation tank (10), and a filter screen (220) is arranged on the inner side wall of the filter tank (20).
5. The device for treating wastewater by combining photoelectrocatalytic oxidation according to claim 1, wherein a dosing tank (310) equipped with an electromagnetic valve is arranged at the top opening of the dosing tank (30) through a mounting frame, and a photocatalytic oxidant coating is arranged on the surface of the electrode plate group (40).
6. The method of using a device for treating wastewater by combination of photoelectrocatalytic oxidation as claimed in claim 4, comprising the steps of:
s1: the wastewater to be treated flows into a catalytic oxidation box (10), a power supply of an electrode plate group (40) and an ultraviolet lamp tube group (50) is started, direct current is introduced into the wastewater to generate oxidation-reduction reaction on the cathode and anode of the electrode plate group (40), and when the current density is high enough, organic matters in the water are removed by oxidation, so that the biodegradability of the wastewater is improved, and the subsequent biological treatment is facilitated; meanwhile, ultraviolet light emitted by the ultraviolet lamp tube (50) generates oxidation-reduction reaction on a photocatalyst on the surface of the electrode plate group (40), and organic matters in water are further removed by oxidation;
s2: starting an intermittent air pumping mechanism (60), firstly starting an air pump (610), pumping high-pressure air into an air storage cylinder (630) by the air pump (610) through a booster pipe (620), and along with the rising of the pressure in the air storage cylinder (630), spirally rising a piston (661) under the cooperation of a screw rod (663) at the top and a thread seat (664), stretching a tension spring (662) between the piston (661) and the air storage cylinder (630), driving the thread seat (664) to rotate along the air storage cylinder (630), driving a spoiler (665) on the outer wall of the thread seat (664) to spoiler sewage, so that particles are prevented from being deposited on the inner wall at the bottom of a catalytic oxidation box (10), and ensuring the sewage treatment effect;
s3: the supporting rod (666) is driven to move upwards in the spiral rising process of the piston (661), high-pressure gas is pumped out of the gas storage cylinder (630) through the gas outlet pipe (640) and the shunt pipe (650) from the gas storage cylinder (630) until the piston (661) moves to the joint of the gas outlet pipe (640) and the gas storage cylinder (630), the pumped gas generates bubbles around the electrode plates of the electrode plate group (40) in sewage, takes away the catalyst participating in the photocatalytic oxidation reaction, floats upwards, and always keeps the stable photocatalytic oxidation function of the electrode plate group (40);
s4: the floating catalyst floats on the surface of the sewage, when the driving half-gear (750) is separated from the driven gear (730), the torsion spring (740) automatically restores to the original state, at the moment, the salvage hopper (720) is arranged in the catalytic oxidation box (10), along with the rotation of the driving half-gear (750) until being meshed with the driven gear (730), the salvage hopper (720) gradually turns towards the top of the filter box (20) along with the rotation of the driving half-gear (750), along with the increase of the turning angle of the salvage hopper (720), and the particle salvage matters in the salvage hopper (720) fall onto the filter screen (220), so that the treatment function of the floating matters on the surface of the sewage is realized, and the catalytic function of the catalytic oxidation box (10) is further maintained;
s5: the ultraviolet light scattering column (667) is driven to move upwards along the inner side wall of the catalytic oxidation box (10) while the supporting rod (666) moves upwards, and along with the change of the position of the ultraviolet light scattering column (667), the ultraviolet light scattering column (667) changes the scattering range of the ultraviolet lamp tube group (50), so that the utilization efficiency of the ultraviolet lamp tube group (50) is improved, and the photocatalytic oxidation function of the catalytic oxidation box (10) is improved;
s6: while moving on the support rod (666), the connecting frame (672) drives the cleaning ring (671) to move along the surface of the lamp tube of the ultraviolet lamp tube assembly (50), so that the cleaning function of the surface of the lamp tube of the ultraviolet lamp tube assembly (50) is realized, and the use effect of the lamp tube is ensured.
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