CN210340579U

CN210340579U - UV photocatalysis sewage treatment plant

Info

Publication number: CN210340579U
Application number: CN201920776350.5U
Authority: CN
Inventors: 牛连勇
Original assignee: Jiangsu Zhichengda Environmental Protection Technology Co ltd
Current assignee: Jiangsu Zhichengda Environmental Protection Technology Co ltd
Priority date: 2019-05-28
Filing date: 2019-05-28
Publication date: 2020-04-17
Anticipated expiration: 2029-05-28

Abstract

The utility model discloses a UV photocatalysis sewage treatment device, which comprises a photocatalysis reaction chamber 1, an aeration tank 2, a UV lamp 3, a light source protective shell 4, an air pump 5, an aeration port 6, a stirrer 7, a photocatalyst plate 8, a metal reflector 9, a filter plate 10, a sludge baffle 11, a water inlet 12, a sludge discharge pump 13, a sludge discharge port 14, a water pump 15 and a water outlet 16; wherein, the UV lamp tube is arranged at the inner side of the water inlet pipe, and the stirrer and the photocatalyst plate at high and low positions are arranged at the position corresponding to the lamp tube. The lower end of the photocatalytic reaction tank is provided with an aeration tank, the bottom end of the aeration tank is provided with an air port, the right side of the aeration tank is provided with a sludge baffle, and large-particle pollutants in water can be removed by regulating and controlling the pressure of an air pump. The filter plate is arranged between the aeration tank and the photocatalytic reaction chamber, and the aperture of the filter plate can be adjusted according to the actual water condition.

Description

UV photocatalysis sewage treatment plant

Technical Field

The utility model relates to a photocatalysis water treatment field relates to a UV photocatalysis sewage treatment plant.

Background

With the acceleration of the industrialization process, the discharge amount of the wastewater of industrial enterprises is gradually increased, and the existence of high-content and high-toxicity refractory organic pollutants in the water body seriously threatens the human existence. The traditional water treatment technology is difficult to completely degrade pollutants by adopting a biological method or a physical method.

The photocatalysis technology is a novel green technology, can convert solar energy into chemical energy to participate in photocatalysis reaction with the help of a photocatalyst, and can not generate substances causing secondary pollution to the environment. The main principle is that after the semiconductor photocatalyst is excited by photons with the forbidden bandwidth or more, valence band electrons (e-) are transited to a conduction band, correspondingly, holes (H +) are left on the valence band, and the photoproduced holes react with OH-or H2O adsorbed on the surface of the catalyst to generate hydroxyl radicals (OH) with strong oxidizing property, so that various organic pollutants in a water body can be effectively degraded by utilizing the advantages of strong oxidizing property, no selectivity on pollutants and the like of the photocatalyst.

At present, the photocatalytic water treatment device has the defects of low illumination efficiency, complex operation and the like, so that the photocatalytic water treatment efficiency is low.

SUMMERY OF THE UTILITY MODEL

To the problem that exists, the utility model aims at providing a UV photocatalysis sewage treatment plant.

The technical scheme of the utility model is that:

a UV photocatalysis sewage treatment device comprises a photocatalysis reaction chamber 1, an aeration tank 2, a UV lamp 3, a light source protective shell 4, an air pump 5, an aeration port 6, a stirrer 7, a photocatalyst plate 8, a metal reflector 9, a filter plate 10, a sludge baffle plate 11, a water inlet 12, a sludge pump 13, a sludge discharge port 14, a water pump 15 and a water outlet 16, wherein the photocatalysis reaction chamber 1 adopts the UV lamp 3 and the light source protective shell 4 which are fixed on the inner wall of the left side as the light source, two stirrers 7 which are fixed at the top end of the device are arranged in the photocatalysis reaction chamber 1, three photocatalyst plates 8 are alternately arranged around the stirrers 7, a stirring wing at the top end of each stirrer is the metal reflector 9, the aeration tank 6 is arranged at the lower end of the photocatalysis reaction chamber 1, the middle of the aeration tank and the filter plate 10 are separated, the bottom end of the reactor is provided with an aeration device which is formed by combining the air pump 5 and, sludge in the sewage can be discharged from a sludge discharge port 14 with the participation of a sludge discharge pump 13, and finally treated water body reaching the standard is discharged from a water outlet 16 at the right upper end of the device with the participation of a water pump 15.

Further, the UV lamp 3 is disposed at one side of the water inlet port, so that the water inlet pipe serves as a condensing device.

Furthermore, the stirring wing at the top end of the stirrer 7 is a metal reflector 9, which can effectively diffuse the light of the light source to the photocatalyst plate 8 far away from the light source.

Furthermore, the stirrer 7 is deviated in both horizontal and vertical positions in the photocatalytic reaction chamber, so that light can be better reflected onto the photocatalyst plate 8.

Further, the photocatalyst plate 8 is fixed at a certain angle at the top of the device to ensure that the photocatalyst plate 8 coated with photocatalyst on both sides can be illuminated.

Compared with the prior art, the utility model has the advantages as follows:

the utility model discloses a UV photocatalysis sewage treatment plant comprises photocatalysis reaction chamber and aeration tank two parts, in the photocatalysis reaction chamber, through fixing the UV lamp in one side of water inlet, utilizes the water condensation fluorescent tube of access device to set up the protective housing in the periphery of fluorescent tube, avoid the pollution of sewage to the fluorescent tube. The agitator that sets up on the device top utilizes the deviation of position and the metal reflector panel on the stirring wing to make the light energy increase in the irradiation scope of photocatalysis reaction chamber, also has certain angle with level and vertical direction when preventing putting the photocatalysis board of two sides coating photocatalyst, makes the illumination area increase. Set up aeration tank at the lower extreme of photocatalytic reaction chamber, can increase the air of aquatic through the air pump to make the oxygen content increase, under the participation of photoproduction electron, generate the superoxide radical of strong oxidability, also can make mud come-up in the sewage, make the large granule pollutant in the sewage discharge from the mud discharging port under the effect of mud baffle, finally obtain more clear waste water entering photocatalytic reaction chamber under the further filtration of filter and carry out the photocatalytic reaction on next step.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the photocatalyst plate and stirrer placement position of the present invention;

in the figure, 1 is a photocatalytic reaction chamber, 2 is an aeration tank, 3 is a UV lamp, 4 is a light source protective shell, 5 is an air pump, 6 is an aeration port, 7 is a stirrer, 8 is a photocatalyst plate, 9 is a metal reflector, 10 is a filter plate, 11 is a sludge baffle, 12 is a water inlet, 13 is a sludge discharge pump, 14 is a sludge discharge port, 15 is a water pump, and 16 is a water outlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the described embodiments are only preferred embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 and 2, the device comprises a photocatalytic reaction chamber 1, an aeration tank 2, a UV lamp 3, a light source protective shell 4, an air pump 5, an aeration port 6, a stirrer 7, a photocatalyst plate 8, a metal reflector 9, a filter plate 10, a sludge baffle 11, a water inlet 12, a sludge discharge pump 13, a sludge discharge port 14, a water pump 15 and a water outlet 16;

the photocatalysis reaction chamber 1 is internally provided with a UV lamp as a light source, and a protective shell 4 is arranged outside the lamp tube in order to avoid the pollution of sewage to the lamp tube. Set up photocatalyst board 8 and agitator 7 on photocatalysis reaction chamber 1 top, and the device's two-sided photocatalyst that has all coated, and this photocatalyst board can be nimble take out from the top in addition, and the position of placing of photocatalyst board 81 is 450 contained angles with the horizontal direction, and second piece photocatalyst board 82 is vertical direction and places, and third piece photocatalyst board 83 is 150 with the horizontal direction, and the size of three photocatalyst boards is different. The stirrers with different heights are arranged in the middle of the photocatalyst plate, and in order to increase the irradiation range of light, a metal reflecting plate 9 is arranged on a stirring wing of each stirrer, and the metal reflecting plate plays a role in reflecting light in the photocatalytic reaction chamber to increase the irradiation area of a light source.

Set up aeration tank 2 under photocatalysis reaction chamber 1, sewage gets into the device from the water inlet after, at first makes the large granule suspended solid float in the water surface in sewage through the aeration, and then makes mud drift to the device right side through the aeration pressure that increases the bottom of the pool, gets into mud discharging port 14 under the effect of mud baffle 11, finally discharges from the right side, and then increases water pump 121 pressure of intaking, makes sewage pass through filter 10, gets into photocatalysis reaction chamber 1. The sewage passing through the aeration tank 2 and the filter plate 10 has high visibility, and the photocatalytic reaction occurs in the photocatalytic reaction chamber 1, so that the semiconductor photocatalyst can be used for exciting generated hydroxyl free radicals (OH) with strong oxidizing property after being irradiated by light, and the semiconductor photocatalyst can be used for capturing a large amount of oxygen in water to generate superoxide free radicals (O2-) with the same strong oxidizing property after being aerated, and both have strong oxidizing property on organic pollutants in water, and finally, the pollutants are thoroughly mineralized into CO2 and H2O.

In order to facilitate the operation, in this embodiment, preferably, the photocatalytic plate disposed at the top end of the photocatalytic chamber can be rotated by an angle according to the requirement and has a slot for conveniently placing in and taking out the photocatalytic plate.

In order to simplify the operation of the apparatus and save water, it is preferable that the UV lamp is disposed at one side of the water inlet pipe, and the sewage flowing in is simultaneously used as condensed water.

In order to increase the efficiency of the photocatalytic treatment, in this embodiment, it is preferable that the contaminated water passes through an aeration tank and a filter plate before entering the photocatalytic reaction chamber, so that the visibility of the contaminated water is increased.

In order to obtain the maximum illumination of the catalyst plate in the photocatalytic reaction chamber, in this embodiment, it is preferable that a metal reflector is disposed on the surface of the stirring wing of the stirrer, and the stirrer is not disposed on the same line.

The aeration port is arranged not only to remove large particle suspended matters in the aeration tank, but also to provide a large amount of dissolved oxygen for the photocatalytic reaction.

The above description is only a preferred embodiment of the present invention, and does not limit the technical scope of the present invention, so all the changes and modifications made according to the claims and the specification of the present invention should fall within the scope covered by the present invention.

Claims

1. A UV photocatalysis sewage treatment device is characterized by comprising a photocatalysis reaction chamber (1), an aeration tank (2), UV lamps (3), a light source protective shell (4), an air pump (5), an aeration port (6), a stirrer (7), photocatalyst plates (8), metal reflecting plates (9), a filter plate (10), a sludge baffle (11), a water inlet (12), a sludge discharge pump (13), a sludge discharge port (14), a water pump (15) and a water outlet (16), wherein the UV lamps (3) and the light source protective shell (4) which are fixed on the inner wall of the left side are used as light sources in the photocatalysis reaction chamber (1), two stirrers (7) fixed by the top end of the device are arranged in the photocatalysis reaction chamber, three photocatalyst plates (8) are alternately arranged around the stirrers (7), stirring wings at the top ends of the stirrers are the metal reflecting plates (9), the aeration tank (2) is arranged at the lower end of the photocatalysis reaction chamber (1), the middle of the reactor and the sewage are separated by a filter plate (10), the bottom end of the reactor is provided with an aeration device formed by combining an air pump (5) and an aeration port (6), the right side of the reactor is provided with a sludge baffle plate (11), so that sludge in sewage can be discharged from a sludge discharge port (14) under the participation of a sludge discharge pump (13), and finally treated water body reaching the standard is discharged from a water outlet (16) at the upper right end of the reactor under the participation of a water pump (15).

2. The UV photocatalytic sewage treatment device according to claim 1, wherein the UV lamp (3) is disposed at one side of the water inlet and performs condensation by using the water inlet pipe.

3. The UV photocatalytic sewage treatment device as defined in claim 1 wherein the stirring wing at the top of the stirrer (7) is a metal reflector (9) which can effectively diffuse the light from the light source to the photocatalyst plate (8) located farther away from the light source.

4. The UV photocatalytic sewage treatment device according to claim 1, wherein the position of the stirrer (7) in the photocatalytic reaction chamber is shifted in both horizontal and vertical positions to allow better reflection of light onto the photocatalyst plate (8).

5. The UV photocatalytic sewage treatment device according to claim 1, characterized in that the photocatalyst plate (8) is fixed at an angle at the top of the device to ensure that the photocatalyst plates (8) coated with photocatalyst on both sides can get the maximum range of illuminating radiation.