CN111233078B

CN111233078B - Magnetic-assisted photoelectric coupling organic wastewater treatment system and method

Info

Publication number: CN111233078B
Application number: CN202010125431.6A
Authority: CN
Inventors: 王艳华; 赵丽云; 张叶悦; 李薇; 王宏念; 李宁
Original assignee: Shaanxi Normal University
Current assignee: Shaanxi Normal University
Priority date: 2020-02-27
Filing date: 2020-02-27
Publication date: 2022-04-12
Anticipated expiration: 2040-02-27
Also published as: CN111233078A

Abstract

The invention discloses a magnetic-assisted photoelectric coupling organic wastewater treatment system and a method, the system comprises a base, a sample introduction device, a catalytic degradation mechanism and a separation and collection device, wherein the sample introduction device comprises an organic wastewater introduction mechanism and a catalyst addition mechanism, the catalytic degradation mechanism comprises a reactor, a quartz glass cylinder, an ultraviolet lamp and an aeration mechanism, a reflector is arranged on the inner side wall of the reactor, an electrified coil is wound on the outer side wall of the reactor, the separation and collection device comprises a cylinder body, a central shaft, a plurality of separation mechanisms, a collection box and a vibration mechanism, and a heating plate is arranged in the cylinder body; the method comprises the following steps: firstly, adding a titanium dioxide particle catalyst; secondly, electrifying the electrifying coil; thirdly, carrying out catalytic degradation treatment on the organic wastewater; fourthly, separating the mixture of water and titanium dioxide particle catalyst after catalytic degradation. The invention can carry out catalytic degradation on organic wastewater and realize the recovery of titanium dioxide particle catalyst.

Description

Magnetic-assisted photoelectric coupling organic wastewater treatment system and method

Technical Field

The invention belongs to the technical field of organic wastewater degradation catalytic separation, and particularly relates to a magnetic-assisted photoelectric coupling organic wastewater treatment system and method.

Background

Currently, photocatalytic devices are classified into a suspension type and a supported type according to the presence form of a catalyst. The suspension type reactor, namely the catalyst is suspended in a liquid phase and directly contacts with pollutants in water, the contact area with the pollutants is large, the mass transfer is good, the reaction rate is high, but the problem that the catalyst is difficult to separate and recycle exists. The supported reactor is a reactor in which a catalyst is supported on a carrier to perform a reaction, and is divided into a fixed bed and a fluidized bed. The load type reactor has the problems that the contact area of the catalyst and the reactant is not large enough, and the optimal effect of the reaction is influenced. The photocatalytic device is classified into a condensing type and a non-condensing type according to the irradiation type of light. The light source of the light-gathering reactor is generally an artificial light source, the irradiation area is small, and the large-scale application of the reactor is limited; the non-light-focusing reactor generally adopts vertical irradiation, the light source is generally a natural light source, namely sunlight, the reaction area is generally larger than that of the light-focusing reactor, but the problem of low light energy utilization rate exists.

Therefore, a magnetic-assisted photoelectric coupling organic wastewater treatment system and method which are simple in structure and reasonable in design are lacked at present, the organic wastewater can be subjected to catalytic degradation, the light energy utilization rate is improved, the water and the titanium dioxide particle catalyst can be effectively separated after the catalytic degradation, the titanium dioxide particle catalyst can be recycled, and the photocatalytic treatment of the organic wastewater is more energy-saving and environment-friendly, and the economic benefit is more prominent.

Disclosure of Invention

The invention aims to solve the technical problem of providing a magnetic-assisted photoelectric coupling organic wastewater treatment system aiming at the defects in the prior art, which has reasonable design and low cost, can perform catalytic degradation on organic wastewater, improve the light energy utilization rate, realize the effective separation of water and a titanium dioxide particle catalyst after the catalytic degradation, realize the recovery of the titanium dioxide particle catalyst, and ensure that the organic wastewater treated by photocatalysis is more energy-saving and environment-friendly and has more outstanding economic benefit.

In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides a magnetism helps optoelectronic coupling organic waste water processing system which characterized in that: comprises a base, a sample feeding device arranged on the base, a catalytic degradation mechanism arranged on the base and a separation and collection device connected with the reactor;

the sample introduction device comprises an organic wastewater introduction mechanism for introducing organic wastewater and a catalyst addition mechanism for adding titanium dioxide particle catalyst, wherein the organic wastewater introduction mechanism comprises a lower box body and a peristaltic pump connected between the lower box body and the catalytic degradation mechanism, the catalyst addition mechanism comprises an upper box body, a funnel arranged on the upper box body and a plug arranged in the upper box body, a filling opening is formed in the top of the lower box body, a plug adjusting mechanism for driving the plug to stretch into or out of the filling opening is arranged in the upper box body, the funnel stretches out of a base, a vertical pipe is arranged at the bottom of the funnel, and the vertical pipe stretches into the upper box body;

the catalytic degradation mechanism comprises a reactor, a quartz glass cylinder, an ultraviolet lamp and an aeration mechanism, wherein the reactor, the quartz glass cylinder and the ultraviolet lamp are sequentially arranged from outside to inside, the aeration mechanism is arranged at the bottom of the reactor, the quartz glass cylinder and the ultraviolet lamp are coaxially arranged, a gap is arranged between the inner side wall of the reactor and the quartz glass cylinder, a reflector is arranged on the inner side wall of the reactor, an electrified coil is wound on the outer side wall of the reactor, a liquid discharge pipe is arranged at the bottom of the reactor, a liquid discharge valve is arranged on the liquid discharge pipe, and the peristaltic pump is communicated with the reactor;

the separation collection device comprises a barrel body, a central shaft arranged in the barrel body, a plurality of separation mechanisms arranged on the central shaft and a collection box arranged at the bottom of the barrel body, and a vibration mechanism arranged at the bottom of the barrel body and driving the central shaft to move up and down, wherein a heating plate is arranged in the barrel body, a liquid discharge pipe is connected with the barrel body through the liquid discharge pipe, a liquid inlet valve is arranged on the liquid discharge pipe, the liquid discharge pipe extends into the barrel body, the outlet of the liquid discharge pipe is positioned above the separation mechanisms, a liquid discharge pipe is connected with the barrel body, and a liquid discharge valve is arranged on the liquid discharge pipe.

Foretell magnetism helps optoelectronic coupling organic waste water processing system which characterized in that: stopper adjustment mechanism is including setting up slider part on last box, installing the bracing piece in last bottom half and installing on the bracing piece and can follow bracing piece pivoted lever, upward be provided with the confession on the box slider part gliding spout from top to bottom, the one end of lever through first iron wire with the one end of slider part is connected, the other end of lever passes through the second iron wire and is connected with the one end of stopper, the lever rotates and drives the stopper and reciprocate.

Foretell magnetism helps optoelectronic coupling organic waste water processing system which characterized in that: the upper box body is internally provided with a positioning part, the positioning part comprises an upper positioning vertical plate arranged in the top of the upper box body and a lower positioning vertical plate arranged in the bottom of the upper box body, a left convex block is arranged at the upper part of one side of the plug, an L-shaped plate is arranged at the top of the plug, the upper positioning vertical plate is L-shaped, one side surface of the plug is attached to the lower positioning vertical plate, the L-shaped plate is attached to the lower positioning vertical plate, and the upper positioning vertical plate is provided with an upper positioning convex block;

the sliding block component comprises a horizontal part extending into the upper box body and a sliding head arranged at the end part of the horizontal part extending out of the upper box body, the horizontal part can slide up and down along the sliding groove, a return spring is arranged between the bottom of the horizontal part and the bottom of the upper box body, the first iron wire is fixedly connected with the horizontal part, and the second iron wire is fixedly connected with the left bump;

go up location riser, L shaped plate, stopper and go up the box and enclose the chamber that holds that establishes into and hold titanium dioxide granule catalyst, the funnel with hold the chamber intercommunication, it is provided with the hang plate to hold the intracavity, the hang plate is located the below of funnel, the hang plate is close to the one end of filler mouth is less than the other end of hang plate.

Foretell magnetism helps optoelectronic coupling organic waste water processing system which characterized in that: the lower box body is provided with a liquid inlet, a liquid inlet pipe is arranged on the liquid inlet, the liquid inlet pipe extends out of the base, the bottom of the lower box body is provided with a liquid outlet pipe, a wastewater flowing chamber is arranged in the lower box body, the filling opening is communicated with the wastewater flowing chamber, the peristaltic pump is connected with the liquid outlet pipe, and the peristaltic pump is connected with the reactor through a connecting pipe;

the reactor is close to bottom department and is provided with the lower erection support that supplies a quartz glass section of thick bamboo installation, the top of reactor is provided with the last erection support that supplies a quartz glass section of thick bamboo installation, down the erection support with go up erection support's structure the same, just down the erection support with it all includes a plurality of fixed bolsters along a quartz glass section of thick bamboo circumferencial direction equipartition to go up erection support, be provided with the draw-in groove on the fixed bolster, the both ends of a quartz glass section of thick bamboo stretch into in the draw-in groove.

Foretell magnetism helps optoelectronic coupling organic waste water processing system which characterized in that: the reactor is characterized in that a slow flow chamber is arranged at the top of the reactor, the cross section of the slow flow chamber is larger than that of the reactor, the cross section of the slow flow chamber from the middle lower part to the bottom of the slow flow chamber is gradually reduced, the bottom of the slow flow chamber is connected with the top of the reactor, and the cross section of the reactor from the lower part to the base is gradually reduced;

the cross section of the reactor and the cross section of the buffer chamber are circular, and the distance d between the inner side wall of the reactor and the outer side wall of the quartz glass cylinder is 10-12 cm.

Foretell magnetism helps optoelectronic coupling organic waste water processing system which characterized in that: the cylinder body is provided with two cover plate parts close to the bottom, the two cover plate parts are identical in structure and comprise a cover plate, an L-shaped pull rod connected with the extending end of the cover plate and a handle connected with the end part of the L-shaped pull rod extending out of the cylinder body, the cover plate is semicircular, and the cover plate is provided with a first semicircular hole matched with the central shaft;

the collecting box comprises two collecting boxes, the cross section of each collecting box is semicircular, a first permanent magnet is arranged on the bottom surface of the barrel, a second permanent magnet is arranged on the top surface of each collecting box, and a second semicircular hole for the central shaft to penetrate through is formed in each collecting box.

Foretell magnetism helps optoelectronic coupling organic waste water processing system which characterized in that: the separation mechanisms are respectively a plurality of first filter plates and second filter plates which are uniformly distributed along the height direction of the central shaft, the first filter plates and the second filter plates have the same structure and are arranged in a staggered manner, one second filter plate is arranged between every two adjacent first filter plates, and one first filter plate is arranged between every two adjacent second filter plates;

first filter and second filter all include the overfall board and solid fixed ring to and first spring and second spring of symmetric connection in the overfall board and solid fixed ring bottom, gu fixed ring is the semicircle ring, the overfall board is the major arc overfall board, the overfall board extends to solid fixed ring's medial surface, gu fixed ring's circumference is provided with the recess, be provided with the mounting hole that supplies the center pin to wear to establish on the overfall board, the edge that the overfall board is close to the mounting hole slopes down gradually.

Foretell magnetism helps optoelectronic coupling organic waste water processing system which characterized in that: the bottom of barrel is provided with the mount pad, vibration mechanism is located the mount pad, vibration mechanism includes the motor, installs the gear on the motor and the rack of being connected with gear drive, gear off-centre is installed on the output shaft of motor, be provided with the mounting panel in the mount pad, be provided with the motor cabinet of power supply machine installation and the slide rail that supplies rack slidable mounting on the mounting panel, the rack passes through the slider and installs on the slide rail, just slide rail and rack are vertical the laying, the top of rack and the bottom fixed connection of center pin, be provided with the spring between the top of center pin and the top of barrel in.

Meanwhile, the invention also discloses a magnetic-assisted photoelectric coupling organic wastewater treatment method which is simple in method steps, reasonable in design, convenient to realize and good in use effect, and is characterized by comprising the following steps:

step one, adding a titanium dioxide particle catalyst:

step 101, measuring the chemical oxygen demand value in the organic wastewater by using a COD rapid determinator to obtain the chemical oxygen demand value in the organic wastewater and recording the value as alpha_cod(ii) a Wherein the unit of the chemical oxygen demand value in the organic wastewater is mg/L;

102, according to the chemical oxygen demand value alpha in the organic wastewater_codAnd the volume V of the reactor_sTo obtain the quality of the needed titanium dioxide particle catalyst; wherein the volume V of the reactor (6)_sThe unit of (a) is L;

103, adding a required titanium dioxide particle catalyst into the upper box body through a funnel in the sample feeding device;

104, enabling organic wastewater to enter a wastewater flowing chamber through a liquid inlet pipe on the lower box body, operating a plug adjusting mechanism to drive a plug to extend out of a filling opening, communicating the filling opening with the wastewater flowing chamber, enabling titanium dioxide particle catalyst added in the upper box body to enter the wastewater flowing chamber, mixing the titanium dioxide particle catalyst with the organic wastewater, and enabling the mixture to pass through the lower box bodyThe liquid outlet pipe and the peristaltic pump on the body enter the reactor until the volume of the liquid in the reactor is equal to that of the liquid in the reactor

Step two, electrifying the electrified coil:

introducing direct current to the electrified coil;

step three, catalytic degradation treatment of organic wastewater:

step 301, turning on an ultraviolet lamp, and operating the aeration mechanism to aerate the reactor;

step 302, under the aeration action of the aeration mechanism and the irradiation of an ultraviolet lamp, activating a titanium dioxide particle catalyst, and performing catalytic degradation on the organic wastewater to obtain a mixture of water and titanium dioxide catalyst particles after the catalytic degradation;

step four, separating the mixture of water and titanium dioxide particle catalyst after catalytic degradation:

step 401, opening a liquid discharge valve, a liquid inlet valve and a liquid outlet valve, and conveying the mixture of the water and the titanium dioxide particle catalyst after catalytic degradation to the barrel through a liquid discharge pipe and a liquid conveying pipe;

step 402, separating the catalytically degraded water and the titanium dioxide particle catalyst by passing the mixture of the catalytically degraded water and the titanium dioxide particle catalyst through a plurality of separating mechanisms to obtain the titanium dioxide particle catalyst gathered on the plurality of separating mechanisms and the separated catalytically degraded water gathered in the bottom of the cylinder;

403, discharging the separated catalytically degraded water collected at the bottom of the cylinder through a filter box and a liquid outlet pipe;

step 404, operating the heating plate to heat the cylinder for 1-2 hours; wherein the heating temperature is 40-50 ℃;

step 405, pulling the operating handle to the outside of the cylinder body so as to open the cover plate;

and 406, operating the vibration mechanism to drive the central shaft to move up and down, wherein the central shaft moves up and down to drive the plurality of separation mechanisms to move up and down so that the titanium dioxide particle catalysts gathered on the plurality of separation mechanisms fall into the collection box through the vibration sieve, and thus the recovery of the titanium dioxide particle catalysts is realized.

The above method is characterized in that: in step 402, the mixture of water and titanium dioxide particle catalyst after catalytic degradation passes through a plurality of separation mechanisms to separate the water and titanium dioxide particle catalyst after catalytic degradation, and the specific process is as follows:

4021, allowing a mixture of the catalytically degraded water and the titanium dioxide particle catalyst conveyed in the infusion tube to flow through an overflow plate on the first filter plate, wherein in the process that the mixture of the catalytically degraded water and the titanium dioxide particle catalyst flows through the inclined overflow plate, because the friction force between the titanium dioxide particle catalyst and the overflow plate is greater than the friction force between the catalytically degraded water and the overflow plate, a part of the titanium dioxide particle catalyst stays on the overflow plate on the first filter plate;

4022, allowing a mixture of water and the titanium dioxide particle catalyst subjected to catalytic degradation by the first filter plate to flow through an overflow plate on the second filter plate, and allowing a part of the titanium dioxide particle catalyst to stay on the overflow plate on the second filter plate;

4023, repeating the steps 4021 and 4022 for multiple times to separate the mixture of the water and the titanium dioxide particle catalyst after catalytic degradation, and obtaining the titanium dioxide particle catalyst gathered on the flow passage plate and the separated water after catalytic degradation gathered at the bottom of the cylinder;

in step 406, operating the vibration mechanism to drive the central shaft to move up and down, and driving the plurality of separating mechanisms to move up and down by the up and down movement of the central shaft, wherein the specific process comprises the following steps:

the motor is operated to rotate, the gear is driven to rotate by the rotation of the motor, when the gear rotates to be meshed with the rack, the rack is pushed to move upwards along the sliding rail by the rotation of the gear, and the central shaft is pushed to move upwards by the upward movement of the rack along the sliding rail, so that each overflowing plate is pushed to move upwards close to the central shaft;

when the gear rotates to be separated from the rack, the compressed upper spring extends to push the central shaft to move downwards, and meanwhile, the rack moves downwards along the sliding rail, so that each overflowing plate is pushed to move downwards close to the central shaft, and the up-and-down movement of each overflowing plate is realized;

or the motor is operated to rotate reversely, the gear is driven to rotate reversely by the reverse rotation of the motor, when the gear rotates reversely to be meshed with the rack, the rack is pushed to move downwards along the sliding rail by the reverse rotation of the gear, and the central shaft is driven to move downwards when the rack moves downwards along the sliding rail, so that each overflowing plate is pushed to move downwards close to the central shaft;

when the gear rotates to be separated from the rack, the extended upper spring contracts to drive the central shaft to move upwards, and meanwhile, the rack moves upwards along the sliding rail, so that the overflowing plates are pushed to move upwards close to the central shaft, and the overflowing plates are moved up and down.

Compared with the prior art, the invention has the following advantages:

1. simple structure, reasonable in design, catalytic efficiency is high, and can separate and retrieve titanium dioxide particle catalyst, the input cost is lower.

2. The funnel that adopts, stopper and stopper adjustment mechanism can add required titanium dioxide particle catalyst in the box that makes progress through the funnel, drives the stopper through stopper adjustment mechanism and stretches into or stretch out the filler opening to the titanium dioxide particle catalyst that will go up the internal interpolation of box gets into the waste water through the filler opening and flows through the room, so that titanium dioxide particle catalyst and organic waste water mix, it is convenient that titanium dioxide particle catalyst adds, and can effectively mix with organic waste water.

3. The catalytic degradation mechanism that adopts includes reactor, a quartz glass section of thick bamboo and ultraviolet lamp, and the ultraviolet lamp is located a quartz glass section of thick bamboo's inside, and the inside wall of reactor is provided with the speculum to be convenient for reflect the ultraviolet ray of ultraviolet lamp transmission back to a quartz glass section of thick bamboo in, the irradiation area is big, has improved light energy utilization and has rateed, improves catalytic effect.

4. The ultraviolet lamp is adopted because the titanium dioxide as the catalyst has to absorb enough photons to show the catalytic action, so that the ultraviolet lamp just can provide the photons to ensure that the titanium dioxide shows the activity and the organic wastewater is degraded more fully.

5. The separating mechanism is used for introducing a mixture of water and titanium dioxide particle catalyst after catalytic degradation into the cylinder body, and the water and the titanium dioxide particle catalyst after catalytic degradation are conveniently separated by the plurality of separating mechanisms; in addition, the arrangement of the plurality of separating mechanisms is convenient for increasing the contact area of the mixture and the overflowing plate, is convenient for the aggregation of the titanium dioxide particle catalyst, and improves the separating effect.

6. The adopted vibration mechanism is used for operating the motor in the vibration mechanism to rotate, the rotation of the motor drives the gear to rotate, when the gear rotates to be meshed with the rack, the gear rotates to push the rack to move along the sliding rail, and when the rack moves upwards along the sliding rail, the central shaft is pushed to move, so that each overflowing plate is pushed to move close to the central shaft; when the gear rotates to be separated from the rack, the upper spring enables the central shaft to move reversely, and meanwhile, the rack moves reversely along the sliding rail, so that the overflow plates are pushed to move reversely close to the central shaft, the overflow plates move up and down, and titanium dioxide particle catalysts gathered on the overflow plates in the separating mechanism are conveniently screened and recovered to the collecting box.

7. The heating plate is used for heating the inside of the cylinder body after water and the titanium dioxide particle catalyst are separated after catalytic degradation, so that the titanium dioxide particle catalyst gathered on the overflowing plate can be conveniently heated to evaporate water on the overflowing plate, and the titanium dioxide particle catalyst can be conveniently screened out by vibration.

8. The adopted method for treating the organic wastewater through the magnetic-assisted photoelectric coupling has the advantages of simple steps, convenient realization and simple and convenient operation, removes organic pollutants in the organic wastewater, and is convenient for recycling water resources.

9. The adopted magnetic-assisted photoelectric coupling organic wastewater treatment method is simple and convenient to operate and good in using effect, firstly, titanium dioxide particle catalysts are added, the organic wastewater and the added titanium dioxide particle catalysts are transmitted into a reactor, an electrified coil is electrified, then, the organic wastewater is subjected to catalytic degradation, and a mixture of the water and the titanium dioxide catalyst particles after the catalytic degradation is obtained; finally, separating the mixture of the water and the titanium dioxide particle catalyst after the catalytic degradation so as to recover the titanium dioxide particle catalyst.

In conclusion, the invention has reasonable design and low cost, can carry out catalytic degradation on organic wastewater, improves the light energy utilization rate, can realize effective separation of water and the titanium dioxide particle catalyst after catalytic degradation, realizes recovery of the titanium dioxide particle catalyst, and ensures that organic wastewater treated by photocatalysis is more energy-saving and environment-friendly, and has more remarkable economic benefit.

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

FIG. 1 is a schematic structural diagram of a magnetic-assisted photoelectric coupling organic wastewater treatment system of the present invention.

FIG. 2 is a schematic structural view of the feeding device of the magnetic-assisted photoelectric coupling organic wastewater treatment system for removing the front side surface of the upper box body and the front side surface of the lower box body.

FIG. 3 is a schematic structural diagram of a separation and collection device of a magnetic-assisted photoelectric coupling organic wastewater treatment system of the invention.

FIG. 4 is a schematic diagram showing the structure of a first filter plate and a second filter plate of the magnetic-assisted photoelectric coupling organic wastewater treatment system of the present invention.

FIG. 5 is a schematic structural view of a collecting box of the magnetic-assisted photoelectric coupling organic wastewater treatment system of the present invention.

FIG. 6 is a flow chart of the magnetic-assisted photoelectric coupling organic wastewater treatment method of the present invention.

Description of reference numerals:

1-liquid inlet pipe; 2-sample introduction device;

2-1-liquid inlet; 2-sliding chute; 2-3-a return spring;

2-4-sliding head; 2-5-funnel; 2-6, arranging a vertical plate;

2-7-plug; 2-8-a liquid outlet pipe; 2-9-wastewater flow through the chamber;

2-10-lower positioning vertical plate; 2-11-lever; 2-12-support bar;

2-13-L shaped plates; 2-14-vertical tubes; 2-15-rotation axis;

2-16-a first iron wire; 2-17-a second iron wire; 2-18-upper limiting bump;

2-19-lower box body; 2-20-inclined plates; 2-21-horizontal section;

2-22-upper box body; 3-1-fixed support; 3-2-card slot;

4-a quartz glass cylinder; 5-lamp mounting seat; 6-a reactor;

7-a slow flow chamber; 8, a vent pipe; 9-inflator pump seat;

10-a first filter plate; 11-drain pipe; 11-1-drain valve;

12-a cylinder body; 13-aeration disc; 14-an inflator pump;

15-ultraviolet lamp; 16-a peristaltic pump; 16-1-connecting tube;

17-an infusion tube; 18-a spring; 18-1-a liquid inlet valve;

18-2-a liquid outlet valve; 19-central axis; 20-a second filter plate;

20-1-an overflow plate; 20-2-fixed ring; 20-3 — a first spring;

20-4 — a second spring; 20-5-mounting holes; 20-6-grooves;

21-a liquid outlet pipe; 22-a filter cartridge; 23-a motor;

23-1-motor base; 24-a rack; 25-a collection box;

25-1-second semicircular hole; 26-a slide rail; 27-mounting a plate;

28-a slide block; 29-gear; 30-an L-shaped tie rod;

30-1-handle; 31-1 — a first permanent magnet; 31-2-a second permanent magnet;

32-a heating plate; 33-a base; 34-an electrified coil;

35-a mounting seat; 36-cover plate; 37-a sealing ring;

38-ring; 39-exhaust pipe.

Detailed Description

The system for treating organic wastewater through magnetic-assisted photoelectric coupling shown in fig. 1 to 5 comprises a base 33, a sample introduction device 2 arranged on the base 33, a catalytic degradation mechanism arranged on the base 33, and a separation and collection device connected with the reactor;

the sample introduction device 2 comprises an organic wastewater introduction mechanism for introducing organic wastewater and a catalyst addition mechanism for adding titanium dioxide particle catalyst, the organic wastewater introduction mechanism comprises a lower box body 2-19 and a peristaltic pump 16 connected between the lower box body 2-19 and the catalytic degradation mechanism, the catalyst addition mechanism comprises an upper box body 2-22, a funnel 2-5 arranged on the upper box body 2-22 and a plug 2-7 arranged in the upper box body 2-22, a filling opening is formed in the top of the lower box body 2-19, a plug adjusting mechanism for driving the plug 2-7 to extend into or out of the filling opening is arranged in the upper box body 2-22, the funnel 2-5 extends out of a base 33, a vertical pipe 2-14 is arranged at the bottom of the funnel 2-5, the vertical pipes 2-14 extend into the upper box body 2-22, and the peristaltic pump 16 is communicated with the reactor 6;

the catalytic degradation mechanism comprises a reactor 6, a quartz glass cylinder 4 and an ultraviolet lamp 15 which are sequentially arranged from outside to inside, and an aeration mechanism arranged at the bottom of the reactor 6, wherein the reactor 6, the quartz glass cylinder 4 and the ultraviolet lamp 15 are coaxially arranged, a gap is arranged between the inner side wall of the reactor 6 and the quartz glass cylinder 4, a reflector is arranged on the inner side wall of the reactor 6, an electrified coil 34 is wound on the outer side wall of the reactor 6, a liquid discharge pipe 11 is arranged at the bottom of the reactor 6, and a liquid discharge valve 11-1 is arranged on the liquid discharge pipe 11;

the separation and collection device comprises a barrel body 12, a central shaft 19 arranged in the barrel body 12, a plurality of separation mechanisms arranged on the central shaft 19, a collection box arranged at the bottom of the barrel body 12, and a vibration mechanism arranged at the bottom of the barrel body 12 and driving the central shaft 19 to move up and down, wherein a heating plate 32 is arranged in the barrel body 12, a liquid discharge pipe 11 is connected with the barrel body 12 through a liquid conveying pipe 17, a liquid inlet valve 18-1 is arranged on the liquid conveying pipe 17, the liquid conveying pipe 17 extends into the barrel body 12, an outlet of the liquid conveying pipe 17 is positioned above the separation mechanisms, the barrel body 12 is connected with a liquid outlet pipe 21, and a liquid outlet valve 18-2 is arranged on the liquid outlet pipe 21.

In this embodiment, the plug adjusting mechanism includes a slider component disposed on the upper case 2-22, a support rod 2-12 mounted in the bottom of the upper case 2-22, and a lever 2-11 mounted on the support rod 2-12 and capable of rotating along the support rod 2-12, the upper case 2-22 is provided with a chute 2-2 for the slider component to slide up and down, one end of the lever 2-11 is connected with one end of the slider component through a first iron wire 2-16, the other end of the lever 2-11 is connected with one end of the plug 2-7 through a second iron wire 2-17, and the lever 2-11 rotates to drive the plug 2-7 to move up and down.

In the embodiment, a positioning part is arranged in the upper box body 2-22 and comprises an upper positioning vertical plate 2-6 arranged in the top of the upper box body 2-22 and a lower positioning vertical plate 2-10 arranged in the bottom of the upper box body 2-22, a left convex block is arranged at the upper part of one side of the plug 2-7, an L-shaped plate 2-13 is arranged at the top of the plug 2-7, the upper positioning vertical plate 2-6 is L-shaped, one side surface of the plug 2-7 is attached to the lower positioning vertical plate 2-10, the L-shaped plate 2-13 is attached to the lower positioning vertical plate 2-10, and an upper limiting convex block 2-18 is arranged on the upper positioning vertical plate 2-6;

the sliding block component comprises a horizontal part 2-21 extending into the upper box body 2-22 and a sliding head 2-4 arranged at the end part of the horizontal part 2-21 extending out of the upper box body 2-22, the horizontal part 2-21 can slide up and down along the sliding groove 2-2, a return spring 2-3 is arranged between the bottom of the horizontal part 2-21 and the bottom of the upper box body 2-22, a first iron wire 2-16 is fixedly connected with the horizontal part 2-21, and a second iron wire 2-17 is fixedly connected with the left bump;

the upper positioning vertical plate 2-6, the L-shaped plate 2-13, the plug 2-7 and the upper box body 2-22 enclose a containing cavity for containing titanium dioxide particle catalyst, the funnel 2-5 is communicated with the containing cavity, an inclined plate 2-20 is arranged in the containing cavity, the inclined plate 2-20 is positioned below the funnel 2-5, and one end, close to the filling port, of the inclined plate 2-20 is lower than the other end of the inclined plate 2-20.

In this embodiment, a liquid inlet 2-1 is arranged on the lower box body 2-19, a liquid inlet pipe 1 is arranged on the liquid inlet 2-1, the liquid inlet pipe 1 extends out of the base 33, a liquid outlet pipe 2-8 is arranged at the bottom of the lower box body 2-19, a waste water flow chamber 2-9 is arranged in the lower box body 2-19, the filling opening is communicated with the waste water flow chamber 2-9, the peristaltic pump 16 is connected with the liquid outlet pipe 2-8, and the peristaltic pump 16 is connected with the reactor 6 through a connecting pipe 16-1;

the reactor 6 is provided with a lower mounting support for mounting the quartz glass cylinder 4 near the bottom, the top of the reactor 6 is provided with an upper mounting support for mounting the quartz glass cylinder 4, the lower mounting support and the upper mounting support are identical in structure, the lower mounting support and the upper mounting support respectively comprise a plurality of fixed supports 3-1 which are uniformly distributed along the circumferential direction of the quartz glass cylinder 4, the fixed supports 3-1 are provided with clamping grooves 3-2, and two ends of the quartz glass cylinder 4 extend into the clamping grooves 3-2.

In this embodiment, a slow flow chamber 7 is arranged at the top of the reactor 6, the cross section of the slow flow chamber 7 is larger than that of the reactor 6, the cross section of the slow flow chamber 7 gradually decreases from the middle lower part of the slow flow chamber 7 to the bottom of the slow flow chamber 7, the bottom of the slow flow chamber 7 is connected with the top of the reactor 6, and the cross section of the lower part of the reactor 6 to the base 33 gradually decreases;

the cross sections of the reactor 6 and the slow flow chamber 7 are circular, and the distance d between the inner side wall of the reactor 6 and the outer side wall of the quartz glass cylinder 4 is 10-12 cm.

In this embodiment, two cover plate components are arranged at the position of the cylinder 12 close to the bottom, the two cover plate components have the same structure, the cover plate components comprise a cover plate 36, an L-shaped pull rod 30 connected with the extending end of the cover plate 36 and a pull handle 30-1 connected with the end part of the L-shaped pull rod 30 extending out of the cylinder 12, the cover plate 36 is semicircular, and a first semicircular hole matched with the central shaft 19 is arranged on the cover plate 36;

the collecting box comprises two collecting boxes 25, the cross section of each collecting box 25 is semicircular, a first permanent magnet 31-1 is arranged on the bottom surface of the barrel 12, a second permanent magnet 31-2 is arranged on the top surface of each collecting box 25, and a second semicircular hole 25-1 for the central shaft 19 to penetrate through is formed in each collecting box 25.

In this embodiment, the plurality of separating mechanisms are respectively a plurality of first filter plates 10 and second filter plates 20 uniformly distributed along the height direction of the central shaft 19, the first filter plates 10 and the second filter plates 20 have the same structure, the first filter plates 10 and the second filter plates 20 are arranged in a staggered manner, one second filter plate 20 is arranged between two adjacent first filter plates 10, and one first filter plate 10 is arranged between two adjacent second filter plates 20;

the first filter plate 10 and the second filter plate 20 both include an overflow plate 20-1 and a fixing ring 20-2, and a first spring 20-3 and a second spring 20-4 symmetrically connected to the bottom of the overflow plate 20-1 and the fixing ring 20-2, the fixing ring 20-2 is a semicircular ring, the overflow plate 20-1 is a major arc overflow plate, the overflow plate 20-1 extends to the inner side of the fixing ring 20-2, a groove 20-6 is formed on the circumference of the fixing ring 20-2, a mounting hole 20-5 for the central shaft 19 to penetrate through is formed on the overflow plate 20-1, and the edge of the overflow plate 20-1 close to the mounting hole 20-5 gradually inclines downwards.

In this embodiment, the bottom of the cylinder 12 is provided with an installation seat 35, the vibration mechanism is located in the installation seat 35, the vibration mechanism includes a motor 23, a gear 29 installed on the motor 23, and a rack 24 in transmission connection with the gear 29, the gear 29 is eccentrically installed on an output shaft of the motor 23, an installation plate 27 is provided in the installation seat 35, a motor seat 23-1 for installing the motor 23 and a slide rail 26 for slidably installing the rack 24 are provided on the installation plate 27, the rack 24 is installed on the slide rail 26 through a slider 28, the slide rail 26 and the rack 24 are vertically arranged, the top of the rack 24 is fixedly connected with the bottom of the central shaft 19, and an upper spring 18 is provided between the top of the central shaft 19 and the inside of the cylinder 12.

In this embodiment, it should be noted that the front side of the catalytic degradation mechanism and the front side of the separation and collection device are removed in fig. 1.

In this embodiment, it should be noted that the inner diameter of the quartz glass cylinder 4 is larger than the distance d between the inner sidewall of the reactor 6 and the outer sidewall of the quartz glass cylinder 4.

In this embodiment, the top of the support rod 2-12 is provided with a rotating shaft 2-15 for rotatably mounting the lever 2-11.

In the embodiment, the lower positioning vertical plates 2-10 are arranged for limiting one side surface of the plug 2-7, so that one side surface of the plug 2-7 can vertically move up and down along the vertical surfaces of the lower positioning vertical plates 2-10 under the driving of the levers 2-11; meanwhile, the L-shaped plates 2-13 are attached to the upper positioning vertical plates 2-6, so that the other side surfaces of the plugs 2-7 are limited, the other side surfaces of the plugs 2-7 opposite to each other can vertically move up and down along the vertical surfaces of the upper positioning vertical plates 2-6 under the driving of the levers 2-11, and the plugs 2-7 can vertically extend into or extend out of the filling openings.

In this embodiment, a left bump is arranged on the upper part of one side of the plug 2-7, and firstly, the connection with the other end of the lever 2-11 through the second iron wire 2-17 is facilitated, so that the traction of the lever 2-11 is transferred to the traction of the left bump; secondly, the stopper 2-7 is limited to move downwards for the maximum distance when vertically extending into the filling opening, so that the stopper 2-7 is prevented from entering the lower box body 2-19 through the filling opening;

in the embodiment, the upper limiting lugs 2 to 18 are arranged, firstly, the maximum upward moving distance of the plug 2 to 7 can be limited when the plug 2 to 7 vertically extends out of the filling opening, and the situation that the bottom of the plug 2 to 7 is separated from the lower positioning vertical plate 2 to 10 and cannot be reset is avoided; thirdly, the compression amount of the return spring 2-3 is limited, the return spring 2-3 is prevented from being compressed extremely, and the recycling of the return spring 2-3 is reduced.

In the embodiment, the return spring 2-3 is arranged, firstly, when the sliding head 2-4 slides downwards along the sliding chute 2-2, the sliding head 2-4 slides slowly due to the counter force of the return spring 2-3; secondly, when the operator releases the sliding head 2-4, the compressed spring is extended, so that the sliding head 2-4 is reset by sliding upwards along the sliding groove 2-2.

In this embodiment, the lever 2-11 is provided so that the pulling force of the horizontal part 2-21 is transmitted to the stopper 2-7 when the sliding head 2-4 slides down the chute 2-2.

In this embodiment, the inclined plates 2-20 are arranged to reduce the friction between the titanium dioxide particle catalyst and the inclined plates 2-20 when the plugs 2-7 extend out of the filling openings, so that the accommodating cavities can be filled with the titanium dioxide particle catalyst, and the titanium dioxide particle catalyst enters the wastewater flowing chamber through the filling openings to be mixed with the organic wastewater to be treated.

In this embodiment, a lamp mounting base 5 for mounting the ultraviolet lamp 15 is arranged in the base 33, and the lamp mounting base 5 is identical to the lower mounting support and the upper mounting support in structure, so that the ultraviolet lamps 15 can be vertically arranged conveniently.

In this embodiment, the L-shaped pull rod 30 is provided to limit the vertical portion of the L-shaped pull rod 30 during the pulling of the handle 30-1, so as to prevent the cover plate 36 from being pulled out of the barrel 12 and being pushed forward.

In this embodiment, in the in-service use process, the round hole that sets up is enclosed in the semicircle orifice on two apron 36 cooperatees with center pin 19 to in the center pin 19 wear to establish, and be provided with sealing washer 37 between the semicircle orifice on the apron 36 and the 19 lateral walls of center pin, avoid the infiltration.

In this embodiment, the first permanent magnet 31-1 and the second permanent magnet 31-2 are provided to facilitate the mounting and dismounting of the collecting box 25 by sucking the collecting box 25 to the bottom of the cylinder 12 by utilizing the opposite attraction of the permanent magnets, thereby facilitating the storage of the titanium dioxide particle catalyst in the collecting box 25.

In this embodiment, the aeration mechanism includes an inflator pump 14 and a vent pipe 8 connected with the inflator pump 14, a plurality of aeration discs 13 are arranged at the bottom of the reactor 6, the vent pipe 8 is connected with the aeration discs 13, the plurality of aeration discs 13 are uniformly distributed along the circumferential direction of the bottom of the reactor 6, the centers of the circumferences surrounded by the plurality of aeration discs 13 and the center of the inner circumference of the quartz glass cylinder 4 are located on the same vertical line, and the circumferential diameter surrounded by the plurality of aeration discs 13 is smaller than the inner circumference diameter of the quartz glass cylinder 4.

In this embodiment, an inflator base 9 for mounting an inflator 14 is disposed in the base 33.

In this embodiment, the aeration mechanism is provided for the purpose of: firstly, the organic wastewater in the reactor 6 is provided with enough oxygen, so that the catalytic degradation of the organic wastewater is easy to occur; secondly, the titanium dioxide particle catalyst is fully mixed with the organic wastewater and is in a fluidized state, so that the effective contact area of the titanium dioxide particle catalyst and the organic wastewater is increased, and the reaction rate is increased; thirdly, in order to enable the titanium dioxide particle catalyst mixed with the organic wastewater to flow upwards, the organic wastewater is catalyzed and degraded through a degradation area in the quartz glass cylinder 4 and then flows into the reactor 6 through the buffer chamber 7, so that the titanium dioxide particle catalyst is conveniently recycled.

In this embodiment, the ultraviolet lamp 15 is provided because the light source must be capable of providing photons of semiconductor band gap energy, the band gap energy of titanium dioxide is 3.2 electron volts, a lamp emitting a wavelength of 380 nm or shorter can be used as the radiation source, and the ultraviolet lamp can emit a wavelength of 350 nm to 380 nm. The titanium dioxide as a catalyst must absorb enough photons to exhibit the catalytic effect, so the ultraviolet lamp 15 can just provide photons to make the titanium dioxide active, so that the organic wastewater is degraded more sufficiently.

In this embodiment, during the concrete implementation, set up ultraviolet lamp 15 in the quartz glass section of thick bamboo 4, and the ultraviolet lamp is located the inside of quartz glass section of thick bamboo, and the inside wall of reactor is provided with the speculum to be convenient for reflect the ultraviolet ray of ultraviolet lamp transmission back to the quartz glass section of thick bamboo in, the irradiation area is big, and has improved light energy utilization, improves catalytic effect.

In this embodiment, set up quartz glass section of thick bamboo 4, be in order to improve the transmissivity to the absorption that reduces the ultraviolet ray, promoted the utilization ratio of light source greatly, improve catalytic effect.

In the embodiment, titanium dioxide particles are used as the catalyst, so that the titanium dioxide catalyst has the characteristics of low cost, no secondary pollution, high catalytic activity and no toxicity, and is an ideal catalytic material.

In this embodiment, the cross section of the middle degradation catalysis chamber is circular, so that the ultraviolet lamp 15 emits ultraviolet light for reflection, so as to provide more photons for the titanium dioxide particle catalyst, and facilitate catalysis of the titanium dioxide particles.

In this embodiment, the cross section of the slow flow chamber 7 is circular, and the reason why the cross section of the slow flow chamber 7 gradually decreases from top to bottom is that: first, to adapt the cross-sectional shape of the reactor 6, thereby facilitating the connection of the top of the reactor 6 with the buffer chamber 7; secondly, in the process of multiple circulating flows of the organic wastewater, titanium dioxide particle catalyst particles in the organic wastewater can better enter the reactor 6 through the slow flow chamber 7, so that the catalytic degradation of the organic wastewater is facilitated.

In this embodiment, the distance d between the inner sidewall of the reactor 6 and the outer sidewall of the quartz glass cylinder 4 is 10cm to 12cm, which is convenient for a down-flow region between the inner sidewall of the reactor 6 and the quartz glass cylinder 4, so that a part of the organic wastewater and the titanium dioxide particle catalyst which rise in the quartz glass cylinder 4 can fall into the down-flow region after rising into the buffer chamber 7, and further flow to the bottom of the reactor 6, so that the organic wastewater and the titanium dioxide particle catalyst which are collected at the bottom of the reactor 6 can be subjected to cyclic catalytic degradation in the quartz glass cylinder 4 again under the aeration effect; in addition, the aim is to enlarge the reaction area in the quartz glass cylinder 4 as much as possible, and simultaneously ensure that the organic wastewater can more smoothly fall to the down-flow area and then returns to the reaction area again after being catalyzed and degraded, thereby improving the catalysis efficiency.

In this embodiment, a circular ring 38 is disposed on the inner side wall of the cylinder 12, and the circumference of the fixing ring 20-2 is clamped on the circular ring 38.

In this embodiment, the first filter plate 10 and the second filter plate 20 are disposed, and the first filter plate 10 and the second filter plate 20 are disposed in a staggered manner, firstly, in order to introduce the mixture of water and titanium dioxide particle catalyst after catalytic degradation into the cylinder 12, the mixture is filtered by the plurality of first filter plates 10 and the plurality of second filter plates 20, so as to separate the water and the titanium dioxide particle catalyst after catalytic degradation; secondly, the mixture of the water and the titanium dioxide particle catalyst after the catalytic degradation is separated for multiple times, so that the separation effect of the water and the titanium dioxide particle catalyst after the catalytic degradation is improved; thirdly, the mixture of water and titanium dioxide particle catalyst can flow and separate under the action of gravity after catalytic degradation, so that the energy consumption is reduced; fourthly, the flow velocity of the water and the titanium dioxide particle catalyst after the catalytic degradation is slowed down, and the problem that the titanium dioxide particle catalyst cannot be effectively precipitated due to the fact that the flow velocity of the water and the titanium dioxide particle catalyst after the catalytic degradation is too high is avoided.

In this embodiment, in an actual use process, the bottom of the fixing ring 20-2 is provided with a first hanging rod for hooking one end of the first spring 20-3 and one end of the second spring 20-4, and the bottom of the flow passing plate 20-1 is provided with a second hanging rod for hooking the other end of the first spring 20-3 and the other end of the second spring 20-4.

In this embodiment, the circumference of the fixing ring 20-2 is provided with a groove 20-6, firstly, in order to match with the circular ring 38 arranged on the inner side wall of the cylinder 12, so that the circumference of the fixing ring 20-2 is clamped on the circular ring 38, and the fixing ring 20-2 is further positioned; secondly, in order to fix the fixed ring 20-2 by the first spring 20-3 and the second spring 20-4 in the process that the motor 23 rotates to drive the central shaft 19 to move up and down, the overflow plate 20-1 is positioned away from the edge of the central shaft 19.

In this embodiment, the flow-passing plate 20-1 is a major arc flow-passing plate, and the flow-passing plate 20-1 extends to the inner side surface of the fixed ring 20-2, first, to increase the flow-passing area of the water flow to the maximum extent, so that the mixture of water and titania particles after catalytic degradation can flow through the flow-passing plate 20-1 in the maximum area; secondly, when the mixture of water and the titanium dioxide particle catalyst flows through the flow passing plate 20-1 after catalytic degradation, the contact area of the mixture and the flow passing plate 20-1 is increased, so that the titanium dioxide particle catalyst is convenient to gather; thirdly, a flow hole is formed between the flow passing plate 20-1 and the fixed ring 20-2, so that the mixture of water and titanium dioxide particle catalyst after catalytic degradation can enter the next layer of flow passing plate 20-1 for separation; fourthly, arranging an overflow plate 20-1, wherein the edge of the overflow plate 20-1 close to the mounting hole 20-5 is gradually inclined downwards, and the friction force between the titanium dioxide particle catalyst and the overflow plate 20-1 is greater than the friction force between water and the overflow plate 20-1 after catalytic degradation, so that the titanium dioxide particle catalyst is stopped on the overflow plate 20-1 when flowing along the overflow plate 20-1; fifthly, the weight of the overflowing plate 20-1 and the fixed ring 20-2 can be reduced, and the overflowing plate is convenient to transport and arrange.

In the embodiment, the first spring 20-3 and the second spring 20-4 are arranged, and the first spring is convenient for the elastic connection of the flow passing plate 20-1 and the fixed ring 20-2, so that the flow passing plate 20-1 is fixed by the central shaft 19 and the fixed ring 20-2, the stability of the flow passing plate 20-1 is improved, and the flowing of a mixture of water and a titanium dioxide particle catalyst after catalytic degradation is convenient to bear; secondly, the central shaft 19 is convenient to move up and down in the process of moving up and down under the action of the vibration mechanism, so that the flow passing plate 20-1 can vibrate.

In this embodiment, the first spring 20-3 and the second spring 20-4 are arranged to form an acute angle with respect to the central axis 19, thereby adjusting the stability of the elastic connection between the flow passing plate 20-1 and the fixing ring 20-2.

In this embodiment, the motor 23 is provided to facilitate the installation of the gear 29 and to transmit the rotation of the motor 23 to the rotation of the gear 29; the gear 29 is eccentrically arranged on the output shaft of the motor 23, so that when the gear 29 is driven to be meshed with the rack 24, the gear 29 drives the rack 24 to move upwards along the slide rail 26, and when the rack 24 moves upwards along the slide rail 26, the central shaft 19 is driven to move upwards, so that each flow passing plate 20-1 is driven to move upwards close to the central shaft 19; when the gear 29 is disengaged from the rack 24, the central shaft 19 moves downwards under the action of the upper spring 18, so that each overflow plate 20-1 moves downwards close to the central shaft 19; or the motor 23 is operated to rotate reversely, the reverse rotation of the motor 23 drives the gear 29 to rotate reversely, when the gear 29 rotates reversely to be meshed with the rack 24, the rack 24 is pushed to move downwards along the slide rail 26 by the reverse rotation of the gear 29, and the central shaft 19 is driven to move downwards when the rack 24 moves downwards along the slide rail 26, so that each overflow plate 20-1 is pushed to move downwards close to the central shaft 19;

when the gear 29 rotates and disengages from the rack 24, the elongated upper spring 18 contracts, the upper spring 18 contracts to drive the central shaft 19 to move upwards, and simultaneously the rack 24 moves upwards along the slide rail 26, so as to push each flow passing plate 20-1 to move upwards near the central shaft 19, thereby realizing the up-and-down movement of each flow passing plate 20-1, and thus repeatedly driving the flow passing plate 20-1 to vibrate, thereby facilitating the titanium dioxide particle catalyst accumulated on the flow passing plate 20-1 to fall into the inside of the barrel 12.

In this embodiment, a filter box 22 is arranged on the liquid outlet pipe 21, and the filter box 22 includes a box body and a nano-filtration membrane arranged in the box body and vertically arranged with the water flow direction.

In this embodiment, the filter box 22 is arranged to further filter the separated water after catalytic degradation when the mixture of the water and the titanium dioxide particle catalyst after catalytic degradation is filtered by the plurality of overflow plates 20-1 and the separated water after catalytic degradation is discharged through the liquid outlet pipe 21, so as to further remove a small amount of titanium dioxide particle catalyst contained in the separated water after catalytic degradation, and increase the collection rate.

In this embodiment, the heating plate 32 is provided to heat the inside of the cylinder 12 after the mixture of water and titanium dioxide particulate catalyst after catalytic degradation is filtered by the plurality of flow passing plates 20-1, so as to facilitate drying of the titanium dioxide particulate catalyst collected on the flow passing plates 20-1, thereby facilitating subsequent vibration attenuation.

In this embodiment, the energizing coil 34 is provided, firstly, because the magnetic field generated by the energizing coil 34 affects the activity of the titanium dioxide particle catalyst, the characteristics of the titanium dioxide particle catalyst are improved; secondly, the oxygen is promoted to be dissolved in the organic wastewater, and active oxygen is possibly generated in the water, and the active oxygen groups or substances can oxidize organic matters in the water and reduce the content of organic pollutants in the water; thirdly, covalent bonds of organic matters in the organic wastewater are destroyed to form low-energy micromolecule fragments or partial inorganic matters, and meanwhile, hydrogen bonds in a water body structure are changed due to the magnetic treatment effect, so that the organic matters are also influenced by degradation; fourthly, in order to influence the energy state of the organic pollutants through the magnetic field, organic matter molecules in the organic wastewater approach to an unstable excited state from a stable state due to energy absorption when flowing through the magnetic field, so that the chances of chemical reaction are increased, the chemical reaction rate is relatively improved, namely the magnetic field generated by the electrified coil 34 can catalyze and degrade the organic matters in a short time; fifthly, the luminous intensity of the ultraviolet lamp tube is improved within a certain range due to the magnetic field, and the increase of the luminous intensity not only improves the light absorption rate of the catalyst, but also increases the temperature of the reaction system, thereby improving the photocatalytic degradation efficiency.

In this embodiment, it should be noted that the front side of the base 33 can be opened and closed, the front side of the mounting seat 35 can be opened and closed, and in the actual use process, the base 33 and the mounting seat 35 can be provided with a counterweight block therein, so as to support the reactor 6 and the barrel 12.

As shown in fig. 6, the method for treating organic wastewater by magnetic-assisted photoelectric coupling comprises the following steps:

step one, adding a titanium dioxide particle catalyst:

102, according to the chemical oxygen demand value alpha in the organic wastewater_codAnd the volume V of the reactor 6_sTo obtain the quality of the needed titanium dioxide particle catalyst; wherein the volume V of the reactor 6_sThe unit of (a) is L;

103, adding the needed titanium dioxide particle catalyst into the upper box body 2-22 through a funnel 2-5 in the sample injection device 2;

104, allowing organic wastewater to enter a wastewater flow chamber 2-9 through a liquid inlet pipe 1 on a lower box body 2-19, operating a plug adjusting mechanism to drive a plug 2-7 to extend out of a filling opening, communicating the filling opening with the wastewater flow chamber 2-9, allowing a titanium dioxide particle catalyst added in an upper box body 2-22 to enter the wastewater flow chamber 2-9, mixing the titanium dioxide particle catalyst and the organic wastewater, and allowing the mixture to enter a reactor 6 through a liquid outlet pipe 2-8 on the lower box body 2-19 and a peristaltic pump 16 until the volume of liquid in the reactor 6 is equal to that of liquid in the lower box body 2-19

Step two, electrifying the electrified coil:

applying a direct current to the energizing coil 34;

step three, catalytic degradation treatment of organic wastewater:

step 301, turning on the ultraviolet lamp 15, and operating the aeration mechanism to aerate the reactor 6;

step 302, under the aeration action of the aeration mechanism and the irradiation of the ultraviolet lamp 15, activating the titanium dioxide particle catalyst, and performing catalytic degradation on the organic wastewater to obtain a mixture of water and titanium dioxide catalyst particles after the catalytic degradation;

step 401, opening a liquid discharge valve 11-1, a liquid inlet valve 18-1 and a liquid outlet valve 18-2, and conveying the mixture of the water and the titanium dioxide particle catalyst after catalytic degradation to the barrel body 12 through a liquid discharge pipe 11 and a liquid conveying pipe 17;

step 402, separating the catalytically degraded water and the titanium dioxide particle catalyst by passing the mixture of the catalytically degraded water and the titanium dioxide particle catalyst through the plurality of separating mechanisms to obtain the titanium dioxide particle catalyst gathered on the plurality of separating mechanisms and the separated catalytically degraded water gathered in the bottom of the cylinder 12;

403, discharging the separated water after catalytic degradation collected in the bottom of the cylinder 12 through the filter box 22 and the liquid outlet pipe 21;

step 404, operating the heating plate 32 to heat the interior of the cylinder 12 for 1 to 2 hours; wherein the heating temperature is 40-50 ℃;

step 405, operating the handle 30-1 to pull the barrel 12 outwards, so as to open the cover plate 36;

and 406, operating the vibration mechanism to drive the central shaft 19 to move up and down, wherein the central shaft 19 moves up and down to drive the plurality of separation mechanisms to move up and down, so that the titanium dioxide particle catalysts gathered on the plurality of separation mechanisms fall into the collection box 25 through the vibration sieve, and the recovery of the titanium dioxide particle catalysts is realized.

In this embodiment, the mixture of water and titanium dioxide particle catalyst after catalytic degradation in step 402 passes through a plurality of separation mechanisms to separate water and titanium dioxide particle catalyst after catalytic degradation, and the specific process is as follows:

step 4021, allowing the mixture of the catalytically degraded water and the titanium dioxide particle catalyst conveyed in the infusion tube 17 to flow through the overflowing plate 20-1 on the first filter plate 10, wherein in the process that the mixture of the catalytically degraded water and the titanium dioxide particle catalyst flows through the inclined overflowing plate 20-1, because the friction force between the titanium dioxide particle catalyst and the overflowing plate 20-1 is greater than the friction force between the catalytically degraded water and the overflowing plate 20-1, a part of the titanium dioxide particle catalyst stays on the overflowing plate 20-1 on the first filter plate 10;

step 4022, allowing the mixture of water and titanium dioxide particle catalyst after catalytic degradation in the first filter plate 10 to flow through the overflow plate 20-1 on the second filter plate 20, and allowing a part of the titanium dioxide particle catalyst to stay on the overflow plate 20-1 on the second filter plate 20;

4023, repeating the steps 4021 and 4022 for multiple times to separate the mixture of the water and the titanium dioxide particle catalyst after catalytic degradation, so as to obtain the titanium dioxide particle catalyst gathered on the flow passage plate 20-1 and the separated water after catalytic degradation gathered at the bottom of the cylinder 12;

in step 406, the vibration mechanism is operated to drive the central shaft 19 to move up and down, the central shaft 19 moves up and down to drive the plurality of separating mechanisms to move up and down, and the specific process is as follows:

the motor 23 is operated to rotate, the rotation of the motor 23 drives the gear 29 to rotate, when the gear 29 rotates to be meshed with the rack 24, the gear 29 rotates to push the rack 24 to move upwards along the slide rail 26, and when the rack 24 moves upwards along the slide rail 26, the central shaft 19 is pushed to move upwards, so that each flow passing plate 20-1 is pushed to move upwards close to the central shaft 19;

when the gear 29 rotates and is separated from the rack 24, the compressed upper spring 18 extends, the upper spring 18 extends to push the central shaft 19 to move downwards, and meanwhile, the rack 24 moves downwards along the slide rail 26, so that each flow passing plate 20-1 is pushed to move downwards close to the central shaft 19, and the vertical movement of each flow passing plate 20-1 is realized;

or the motor 23 is operated to rotate reversely, the reverse rotation of the motor 23 drives the gear 29 to rotate reversely, when the gear 29 rotates reversely to be meshed with the rack 24, the rack 24 is pushed to move downwards along the slide rail 26 by the reverse rotation of the gear 29, and the central shaft 19 is driven to move downwards when the rack 24 moves downwards along the slide rail 26, so that each overflow plate 20-1 is pushed to move downwards close to the central shaft 19;

when the gear 29 is rotated to separate from the rack 24, the extended upper spring 18 contracts, the upper spring 18 contracts to drive the central shaft 19 to move upwards, and simultaneously, the rack 24 moves upwards along the slide rail 26, so that each flow passing plate 20-1 is pushed to move upwards close to the central shaft 19, and the up-and-down movement of each flow passing plate 20-1 is realized.

In this embodiment, when the organic wastewater contains acid blue, the magnetic field intensity generated by the electrified coil 34 ranges from 1mT to 9 mT;

when the organic wastewater contains acid scarlet 3R, the magnetic field intensity generated by the electrified coil 34 ranges from 1mT to 400 mT;

when the organic wastewater contains methylene blue, the magnetic field intensity generated by the electrified coil 34 ranges from 50mT to 100 mT;

when the organic wastewater contains azocarmine B, the magnetic field intensity generated by the electrified coil 34 ranges from 1mT to 30 mT;

when chlorobenzene is contained in the organic wastewater, the magnetic field intensity generated by the electrified coil 34 ranges from 100mT to 320 mT.

In this embodiment, according to the formula

Wherein, mu₀Represents the magnetic permeability in vacuum, and₀＝4π×10^-7T·m·A^-1i.e., tesla meter/ampere, I represents the current passed by the energized coil 34 in amperes, R represents the outer diameter of the reactor 6 in meters, H represents the height of the reactor 6 in meters, R represents the wire diameter of the energized coil 34 in meters, and l represents the length of the energized coil 34 wound around the outer sidewall of the reactor 6 in meters.

In this embodiment, in an actual use process, the range of the wire diameter r of the electrified coil 34 is 1.0mm to 2.0 mm.

In this embodiment, during actual use, the upper reactor 6 is further provided with an exhaust pipe 39 for exhausting carbon dioxide gas and the like.

The mass of the titanium dioxide particulate catalyst required in step 101 is

And the unit of mass of the titanium dioxide particulate catalyst is mg;

the particle size of the titanium dioxide particle catalyst required in the step 102 is 20 nm-100 nm;

the specific process of performing catalytic treatment on the organic wastewater in step 302 is as follows:

step 3021, blowing air into the organic wastewater in the reactor 6 under the aeration action of the aeration mechanism, so that the organic wastewater is fully mixed with the titanium dioxide granular catalyst; meanwhile, under the aeration action of the aeration mechanism, the organic wastewater is mixed with titanium dioxide particle catalyst to move upwards and enter a catalytic area in the quartz glass cylinder 4;

step 3022, under the irradiation of the ultraviolet lamp 15, activating the titanium dioxide particle catalyst after absorbing ultraviolet light emitted by the ultraviolet lamp, wherein the titanium dioxide particle catalyst generates electrons and holes, the holes generated by the titanium dioxide particle catalyst have oxidability, the holes generated by the titanium dioxide particle catalyst react with water adsorbed on the surface of the titanium dioxide particle catalyst to generate hydroxyl radicals, and the hydroxyl radicals catalyze and degrade organic wastewater to complete primary catalytic degradation, so that primary catalyzed liquid is obtained;

step 3023, allowing the liquid after primary catalysis to enter the bottom of the reactor 6 again through the slow flow chamber 7 at the top of the reactor 6, and performing aeration action on the aeration mechanism to participate in the next catalytic degradation;

step 3024, repeating the steps 3021 to 3023 for a plurality of times until the set catalytic degradation time is reached, and completing the degradation of the organic wastewater to obtain a mixture of water and the titanium dioxide particle catalyst after the catalytic degradation; wherein the value range of the set catalytic degradation time is 30-60 min.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a magnetism helps optoelectronic coupling organic waste water processing system which characterized in that: comprises a base (33), a sample introduction device (2) arranged on the base (33), a catalytic degradation mechanism arranged on the base (33) and a separation and collection device connected with a reactor;

the sample introduction device (2) comprises an organic wastewater introduction mechanism for introducing organic wastewater and a catalyst addition mechanism for adding titanium dioxide particle catalyst, the organic wastewater introduction mechanism comprises a lower box body (2-19) and a peristaltic pump (16) connected between the lower box body (2-19) and the catalytic degradation mechanism, the catalyst addition mechanism comprises an upper box body (2-22), a funnel (2-5) arranged on the upper box body (2-22) and a plug (2-7) arranged in the upper box body (2-22), a filling opening is formed in the top of the lower box body (2-19), a plug adjusting mechanism for driving the plug (2-7) to extend into or out of the filling opening is arranged in the upper box body (2-22), and the funnel (2-5) extends out of a base (33), a vertical pipe (2-14) is arranged at the bottom of the funnel (2-5), and the vertical pipe (2-14) extends into the upper box body (2-22);

the catalytic degradation mechanism comprises a reactor (6), a quartz glass cylinder (4), an ultraviolet lamp (15) and an aeration mechanism arranged at the bottom of the reactor (6), wherein the reactor (6), the quartz glass cylinder (4) and the ultraviolet lamp (15) are arranged coaxially, a gap is formed between the inner side wall of the reactor (6) and the quartz glass cylinder (4), a reflector is arranged on the inner side wall of the reactor (6), an electrified coil (34) is wound on the outer side wall of the reactor (6), a liquid discharge pipe (11) is arranged at the bottom of the reactor (6), a liquid discharge valve (11-1) is arranged on the liquid discharge pipe (11), and the peristaltic pump (16) is communicated with the reactor (6);

the separation and collection device comprises a barrel body (12), a central shaft (19) arranged in the barrel body (12), a plurality of separation mechanisms arranged on the central shaft (19), a collection box arranged at the bottom of the barrel body (12), and a vibration mechanism which is arranged at the bottom of the barrel body (12) and drives the central shaft (19) to move up and down, wherein a heating plate (32) is arranged in the barrel body (12), a liquid discharge pipe (11) is connected with the barrel body (12) through a liquid conveying pipe (17), a liquid inlet valve (18-1) is arranged on the liquid conveying pipe (17), the liquid conveying pipe (17) extends into the barrel body (12), an outlet of the liquid conveying pipe (17) is positioned above the separation mechanisms, the barrel body (12) is connected with a liquid outlet pipe (21), and a liquid outlet valve (18-2) is arranged on the liquid outlet pipe (21);

the separation mechanisms are respectively a plurality of first filter plates (10) and second filter plates (20) which are uniformly distributed along the height direction of the central shaft (19), the first filter plates (10) and the second filter plates (20) have the same structure, the first filter plates (10) and the second filter plates (20) are arranged in a staggered mode, one second filter plate (20) is arranged between every two adjacent first filter plates (10), and one first filter plate (10) is arranged between every two adjacent second filter plates (20);

the first filter plate (10) and the second filter plate (20) both comprise an overflow plate (20-1) and a fixed ring (20-2), and a first spring (20-3) and a second spring (20-4) which are symmetrically connected with the bottom of the over-flow plate (20-1) and the fixed ring (20-2), the fixed ring (20-2) is a semicircular ring, the overflowing plate (20-1) is a major arc overflowing plate, the overflow plate (20-1) extends to the inner side surface of the fixing ring (20-2), the circumference of the fixing ring (20-2) is provided with a groove (20-6), the overflow plate (20-1) is provided with a mounting hole (20-5) for the central shaft (19) to penetrate through, the edge of the overflowing plate (20-1) close to the mounting hole (20-5) is gradually inclined downwards.

2. The magnetic-assisted photoelectric coupling organic wastewater treatment system according to claim 1, characterized in that: the plug adjusting mechanism comprises a sliding block component arranged on an upper box body (2-22), a supporting rod (2-12) arranged in the bottom of the upper box body (2-22) and a lever (2-11) arranged on the supporting rod (2-12) and capable of rotating along the supporting rod (2-12), wherein a sliding groove (2-2) for the sliding block component to slide up and down is formed in the upper box body (2-22), one end of the lever (2-11) is connected with one end of the sliding block component through a first iron wire (2-16), the other end of the lever (2-11) is connected with one end of a plug (2-7) through a second iron wire (2-17), and the lever (2-11) rotates to drive the plug (2-7) to move up and down.

3. The magnetic-assisted photoelectric coupling organic wastewater treatment system according to claim 2, characterized in that: a positioning part is arranged in the upper box body (2-22), the positioning part comprises an upper positioning vertical plate (2-6) arranged in the top of the upper box body (2-22) and a lower positioning vertical plate (2-10) arranged in the bottom of the upper box body (2-22), a left convex block is arranged at the upper part of one side of the plug (2-7), an L-shaped plate (2-13) is arranged at the top of the plug (2-7), the upper positioning vertical plate (2-6) is L-shaped, one side surface of the plug (2-7) is attached to the lower positioning vertical plate (2-10), the L-shaped plate (2-13) is attached to the lower positioning vertical plate (2-10), and an upper positioning convex block (2-18) is arranged on the upper positioning vertical plate (2-6);

the sliding block component comprises a horizontal part (2-21) extending into the upper box body (2-22) and a sliding head (2-4) arranged at the end part of the horizontal part (2-21) extending out of the upper box body (2-22), the horizontal part (2-21) can slide up and down along the sliding groove (2-2), a return spring (2-3) is arranged between the bottom of the horizontal part (2-21) and the bottom of the upper box body (2-22), a first iron wire (2-16) is fixedly connected with the horizontal part (2-21), and a second iron wire (2-17) is fixedly connected with the left bump;

the upper positioning vertical plates (2-6), the L-shaped plates (2-13), the plugs (2-7) and the upper box body (2-22) are enclosed to form a containing cavity for containing titanium dioxide particle catalysts, the funnel (2-5) is communicated with the containing cavity, an inclined plate (2-20) is arranged in the containing cavity, the inclined plate (2-20) is located below the funnel (2-5), and one end, close to the filler opening, of the inclined plate (2-20) is lower than the other end of the inclined plate (2-20).

4. The magnetic-assisted photoelectric coupling organic wastewater treatment system according to claim 1, characterized in that: a liquid inlet (2-1) is formed in the lower box body (2-19), a liquid inlet pipe (1) is arranged on the liquid inlet (2-1), the liquid inlet pipe (1) extends out of the base (33), a liquid outlet pipe (2-8) is arranged at the bottom of the lower box body (2-19), a wastewater flowing chamber (2-9) is arranged in the lower box body (2-19), the filling opening is communicated with the wastewater flowing chamber (2-9), the peristaltic pump (16) is connected with the liquid outlet pipe (2-8), and the peristaltic pump (16) is connected with the reactor (6) through a connecting pipe (16-1);

reactor (6) are close to bottom department and are provided with the lower erection support that supplies a quartz glass section of thick bamboo (4) to install, the top of reactor (6) is provided with the last erection support that supplies a quartz glass section of thick bamboo (4) to install, down the erection support with go up erection support's structure the same, just down the erection support with go up erection support and all include a plurality of fixed bolsters (3-1) along a quartz glass section of thick bamboo (4) circumferencial direction equipartition, be provided with draw-in groove (3-2) on fixed bolster (3-1), the both ends of a quartz glass section of thick bamboo (4) stretch into in draw-in groove (3-2).

5. The magnetic-assisted photoelectric coupling organic wastewater treatment system according to claim 1, characterized in that: a slow flow chamber (7) is arranged at the top of the reactor (6), the cross section of the slow flow chamber (7) is larger than that of the reactor (6), the cross section from the middle lower part of the slow flow chamber (7) to the bottom of the slow flow chamber (7) is gradually reduced, the bottom of the slow flow chamber (7) is connected with the top of the reactor (6), and the cross section from the lower part of the reactor (6) to a base (33) is gradually reduced;

the cross section of the reactor (6) and the cross section of the buffer chamber (7) are circular, and the distance between the inner side wall of the reactor (6) and the outer side wall of the quartz glass cylinder (4) is 10-12 cm.

6. The magnetic-assisted photoelectric coupling organic wastewater treatment system according to claim 1, characterized in that: the device comprises a barrel (12), and is characterized in that two cover plate components are arranged at the position, close to the bottom, of the barrel (12), the two cover plate components are identical in structure and comprise a cover plate (36), an L-shaped pull rod (30) connected with the extending end of the cover plate (36) and a handle (30-1) connected with the end part, extending out of the barrel (12), of the L-shaped pull rod (30), the cover plate (36) is semicircular, and a first semicircular hole matched with a central shaft (19) is formed in the cover plate (36);

the collecting box comprises two collecting boxes (25), the cross section of each collecting box (25) is semicircular, a first permanent magnet (31-1) is arranged on the bottom surface of the barrel body (12), a second permanent magnet (31-2) is arranged on the top surface of each collecting box (25), and a second semicircular hole (25-1) for the central shaft (19) to penetrate through is formed in each collecting box (25).

7. The magnetic-assisted photoelectric coupling organic wastewater treatment system according to claim 1, characterized in that: the bottom of the cylinder body (12) is provided with a mounting seat (35), the vibration mechanism is positioned in the mounting seat (35), the vibration mechanism comprises a motor (23), a gear (29) arranged on the motor (23) and a rack (24) in transmission connection with the gear (29), the gear (29) is eccentrically arranged on an output shaft of the motor (23), a mounting plate (27) is arranged in the mounting seat (35), the mounting plate (27) is provided with a motor base (23-1) for mounting the motor (23) and a sliding rail (26) for slidably mounting the rack (24), the rack (24) is arranged on the sliding rail (26) through a sliding block (28), the slide rail (26) and the rack (24) are vertically arranged, the top of the rack (24) is fixedly connected with the bottom of the central shaft (19), an upper spring (18) is arranged between the top of the central shaft (19) and the top of the cylinder body (12).

8. A method for treating organic wastewater using the system of claim 1, comprising the steps of:

step one, adding a titanium dioxide particle catalyst:

step 101, measuring the chemical oxygen demand value in the organic wastewater by using a COD rapid measuring instrument to obtain the chemical oxygen demand value in the organic wastewater and recording the value as alpha_cod(ii) a It is composed ofThe unit of the chemical oxygen demand value in the organic wastewater is mg/L;

102, according to the chemical oxygen demand value alpha in the organic wastewater_codAnd the volume V of the reactor (6)_sTo obtain the quality of the needed titanium dioxide particle catalyst; wherein the volume V of the reactor (6)_sThe unit of (a) is L;

103, adding a required titanium dioxide particle catalyst into the upper box body (2-22) through a funnel (2-5) in the sample injection device (2);

104, enabling organic wastewater to enter a wastewater flowing chamber (2-9) through a liquid inlet pipe (1) on a lower box body (2-19), operating a plug adjusting mechanism to drive a plug (2-7) to extend out of a filling opening, communicating the filling opening with the wastewater flowing chamber (2-9), enabling a titanium dioxide particle catalyst added in an upper box body (2-22) to enter the wastewater flowing chamber (2-9), mixing the titanium dioxide particle catalyst and the organic wastewater, and then enabling the mixture to enter a reactor (6) through a liquid outlet pipe (2-8) on the lower box body (2-19) and a peristaltic pump (16) until the volume of liquid in the reactor (6) is equal to that of liquid in the reactor (6)

Step two, electrifying the electrified coil:

the direct current is supplied to the electrified coil (34);

step three, catalytic degradation treatment of organic wastewater:

step 301, turning on an ultraviolet lamp (15), and simultaneously operating an aeration mechanism to aerate the reactor (6);

step 302, under the aeration action of the aeration mechanism and the irradiation of an ultraviolet lamp (15), activating a titanium dioxide particle catalyst, and performing catalytic degradation on the organic wastewater to obtain a mixture of water and titanium dioxide catalyst particles after the catalytic degradation;

step 401, opening a liquid discharge valve (11-1), a liquid inlet valve (18-1) and a liquid outlet valve (18-2), and conveying the mixture of water and titanium dioxide particle catalyst after catalytic degradation to a cylinder body (12) through a liquid discharge pipe (11) and a liquid conveying pipe (17);

step 402, separating the catalytically degraded water and the titanium dioxide particle catalyst by the mixture of the catalytically degraded water and the titanium dioxide particle catalyst through the plurality of separating mechanisms to obtain the titanium dioxide particle catalyst gathered on the plurality of separating mechanisms and the separated catalytically degraded water gathered in the bottom of the cylinder (12);

403, discharging the separated water after catalytic degradation gathered at the bottom of the cylinder body (12) through a filter box (22) and a liquid outlet pipe (21);

step 404, operating the heating plate (32) to heat the interior of the cylinder (12) for 1-2 hours; wherein the heating temperature is 40-50 ℃;

step 405, operating the handle (30-1) to pull the barrel body (12) outwards so as to open the cover plate (36);

and 406, operating the vibration mechanism to drive the central shaft (19) to move up and down, wherein the central shaft (19) moves up and down to drive the plurality of separation mechanisms to move up and down so that the titanium dioxide particle catalysts gathered on the plurality of separation mechanisms fall into the collection box (25) through the vibration sieve, and thus the recovery of the titanium dioxide particle catalysts is realized.

9. The method of claim 8, wherein: in step 402, the mixture of water and titanium dioxide particle catalyst after catalytic degradation passes through a plurality of separation mechanisms to separate the water and titanium dioxide particle catalyst after catalytic degradation, and the specific process is as follows:

step 4021, enabling the mixture of the catalytically degraded water and the titanium dioxide particle catalyst conveyed in the liquid conveying pipe (17) to flow through an overflowing plate (20-1) on a first filter plate (10), wherein in the process that the mixture of the catalytically degraded water and the titanium dioxide particle catalyst flows through the inclined overflowing plate (20-1), because the friction force between the titanium dioxide particle catalyst and the overflowing plate (20-1) is larger than the friction force between the catalytically degraded water and the overflowing plate (20-1), a part of the titanium dioxide particle catalyst stays on the overflowing plate (20-1) on the first filter plate (10);

step 4022, allowing the mixture of water and the titanium dioxide particle catalyst after the catalytic degradation of the first filter plate (10) to flow through an overflow plate (20-1) on the second filter plate (20), and allowing a part of the titanium dioxide particle catalyst to stay on the overflow plate (20-1) on the second filter plate (20);

step 4023, repeating the step 4021 and the step 4022 for multiple times to realize separation of the mixture of the water and the titanium dioxide particle catalyst after catalytic degradation, and obtaining the titanium dioxide particle catalyst gathered on the flow passage plate (20-1) and the water after catalytic degradation after separation gathered at the bottom of the cylinder (12);

in the step 406, the vibration mechanism is operated to drive the central shaft (19) to move up and down, the central shaft (19) moves up and down to drive the plurality of separating mechanisms to move up and down, and the specific process is as follows:

the motor (23) is operated to rotate, the rotation of the motor (23) drives the gear (29) to rotate, when the gear (29) rotates to be meshed with the rack (24), the gear (29) rotates to push the rack (24) to move upwards along the sliding rail (26), and when the rack (24) moves upwards along the sliding rail (26), the central shaft (19) is pushed to move upwards, so that each flow passing plate (20-1) is pushed to move upwards close to the central shaft (19);

when the gear (29) rotates to be separated from the rack (24), the compressed upper spring (18) extends, the upper spring (18) extends to push the central shaft (19) to move downwards, and meanwhile, the rack (24) moves downwards along the sliding rail (26), so that each flow passing plate (20-1) is pushed to move downwards close to the central shaft (19), and the upward and downward movement of each flow passing plate (20-1) is realized;

or the motor (23) is operated to rotate reversely, the gear (29) is driven to rotate reversely by the reverse rotation of the motor (23), when the gear (29) rotates reversely to be meshed with the rack (24), the rack (24) is driven to move downwards along the sliding rail (26) by the reverse rotation of the gear (29), the central shaft (19) is driven to move downwards when the rack (24) moves downwards along the sliding rail (26), and therefore each overflow plate (20-1) is driven to move downwards close to the central shaft (19);

when the gear (29) rotates to be separated from the rack (24), the extended upper spring (18) contracts, the upper spring (18) contracts to drive the central shaft (19) to move upwards, and meanwhile, the rack (24) moves upwards along the sliding rail (26), so that each flow passing plate (20-1) is pushed to move upwards close to the central shaft (19), and the flow passing plates (20-1) move upwards and downwards.