CN211896216U - Ultraviolet catalytic oxidation wastewater treatment device - Google Patents

Abstract

The utility model relates to an ultraviolet photocatalytic oxidation wastewater treatment device, which comprises a pipeline mixer, a water inlet pipe and a reactor which are communicated in sequence; the reactor is provided with an inner cavity, a grid plate is arranged in the inner cavity, and the grid plate divides the inner cavity into a first cavity and a second cavity which are distributed up and down; catalyst particles are filled in the first cavity, an ultraviolet light generating mechanism is arranged in the first cavity, and a light reflecting layer is arranged on the inner wall of the first cavity; the water outlet is communicated with the second cavity; the water inlet pipe is communicated with the second cavity, and an aeration mechanism is arranged in the second cavity. The utility model discloses an ultraviolet photocatalytic oxidation wastewater treatment ware has that the power consumption is low, reaction rate is fast, the ultraviolet ray high-usage, the treatment effect is good, the oxidizer amount is thrown with dosage advantage such as few, can solve that current ultraviolet photocatalytic oxidation reactor energy consumption is big, reaction time is long, the treatment effect is poor, the oxidizer throws with dosage big scheduling problem.

Description

Ultraviolet catalytic oxidation wastewater treatment device

Technical Field

The utility model relates to an ultraviolet photocatalytic oxidation wastewater treatment device, which belongs to the field of water treatment.

Background

The ultraviolet catalytic oxidation technology is an environment-friendly green water treatment technology, and can thoroughly oxidize and degrade organic pollutants in wastewater. The technique is to first form an excited state using an intermediate product that readily absorbs photon energy, and then induce an oxidation process that initiates the reactant molecules. However, the traditional ultraviolet catalytic oxidation reactor has the problems of large energy consumption, long reaction time, poor treatment effect, large addition amount of oxidant and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an ultraviolet photocatalytic oxidation wastewater treatment device with low energy consumption and good treatment effect, which aims at the defects of the prior art.

An ultraviolet catalytic oxidation wastewater processor comprises a pipeline mixer, a water inlet pipe and a reactor which are communicated in sequence; the reactor is provided with an inner cavity, a grid plate is arranged in the inner cavity, and the grid plate divides the inner cavity into a first cavity and a second cavity which are distributed up and down; catalyst particles are filled in the first cavity, an ultraviolet light generating mechanism is arranged in the first cavity, and a light reflecting layer is arranged on the inner wall of the first cavity; the water outlet is communicated with the second cavity; the water inlet pipe is communicated with the second cavity, and an aeration mechanism is arranged in the second cavity.

Further, the light reflection layer is made of a metal material.

Further, the light reflection layer is made of silver.

Furthermore, a check valve is communicated between the pipeline mixer and the water inlet pipe.

Further, the air supply machine is used for supplying air to the aeration mechanism.

Furthermore, a plurality of holes are arranged on the grating plate, and the aperture of each hole is 2-5 mm.

Further, the volume of the catalyst particles in the inner cavity is 1/5-1/2 of the total volume of the inner cavity.

Further, the particle size of the catalyst particles is 3-5 mm.

Further, the inner cavity of the reactor is columnar, the ultraviolet light generating mechanism is strip-shaped, and the ultraviolet light generating mechanism extends along the axial direction of the inner cavity.

Further, the water outlet is located at the top side of the reactor.

Further, still include the exhaust hole with first cavity intercommunication, the exhaust hole sets up in the top of reactor.

Furthermore, a filter screen is arranged in the water outlet.

During waste water treatment, waste water gets into the reactor by the inlet tube, adds required various medicaments through the line mixer of inlet tube front end earlier, and the line mixer enables waste water and medicament misce bene, is aerated by aeration mechanism to waste water again, makes the more even contact of ultraviolet ray and the waste water reaction that catalyst granule and ultraviolet light generation mechanism produced, and unnecessary gas is discharged by exhaust hole and delivery port, and the waste water that finishes of handling is discharged through the delivery port overflow.

The utility model discloses an ultraviolet photocatalytic oxidation wastewater treatment ware has that required ultraviolet ray takes place that mechanism is small in quantity, and power is low, and catalyst loss rate is low, has that the power consumption is low, reaction rate is fast, the ultraviolet ray high-usage, the treatment effect is good, the oxidant dosage is thrown with a dose advantage such as few, can solve that current ultraviolet photocatalytic oxidation reactor energy consumption is big, reaction time is long, the treatment effect is poor, the oxidant throws with a dose big scheduling problem.

Drawings

FIG. 1 is a schematic structural view of an apparatus for treating wastewater by ultraviolet photocatalytic oxidation according to a first embodiment of the present invention.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" in the following description are used only to indicate the correspondence between the upper, lower, left and right directions of the drawings themselves, and do not limit the structure.

Referring to fig. 1, the ultraviolet catalytic oxidation wastewater treatment device comprises a pipeline mixer 1, a water inlet pipe 3 and a reactor 11 which are communicated in sequence; the reactor 11 is provided with an inner cavity, a grid plate 12 is arranged in the inner cavity, and the grid plate 12 divides the inner cavity into a first cavity 14 and a second cavity 15 which are distributed up and down; catalyst particles 10 are filled in the first cavity 14, an ultraviolet light generating mechanism 8 is arranged in the first cavity, and a light reflecting layer 6 is arranged on the inner wall of the first cavity 14; the reactor also comprises a water outlet 7 communicated with the second cavity 15, and the water outlet is positioned at the top side of the reactor; the water inlet pipe 3 is communicated with the second cavity 15, and an aeration mechanism 4 is arranged in the second cavity 15.

The light reflecting layer 6 is made of silver. The ultraviolet light generation mechanism emits ultraviolet light to irradiate the wastewater again through reflection of the light reflection layer, so that the irradiation time of the wastewater at each position in the photocatalytic reaction area can be prolonged, the treatment efficiency is improved, the treatment effect is ensured, the requirement for the arrangement quantity or power of the ultraviolet light generation mechanism is reduced, and the cost and the energy are saved. Optionally, the light reflecting layer 6 is a light reflecting film, such as a commercially available light reflecting film, and is adhered to the inner wall of the inner cavity.

The grid plate can play a role in uniform gas distribution, the liquid flow velocity at the grid plate is increased, catalyst particles are blown up, and proper wastewater and the catalyst particles are uniformly mixed.

A check valve 2 is communicated between the pipeline mixer 1 and the water inlet pipe 3 to prevent wastewater from flowing back.

And an air supply machine 5 for supplying air to the aeration mechanism 4. The air source is air or ozone, and can be selected according to requirements. Part of oxygen is introduced through aeration to replace part of oxidant, so that the addition of the oxidant can be reduced.

A plurality of holes are arranged on the grid plate 12, and the aperture of each hole is 3 mm.

The bottom surface of the catalyst particle 7 abuts against the grid plate 12. Optionally, the catalyst particles 7 are photocatalytic particles and/or ozone catalytic particles.

The inner cavity of the reactor is cylindrical, the ultraviolet light generating mechanism 8 is strip-shaped, and the ultraviolet light generating mechanism 8 extends along the central axis of the inner cavity to generate ultraviolet light for uniform irradiation. Optionally, the upper end of the ultraviolet light generating mechanism 8 is detachably fixed on the top surface of the reactor, so that the assembly, disassembly and maintenance are convenient.

And the gas exhaust hole 9 is communicated with the first cavity 14, and the gas exhaust hole 9 is arranged at the top of the reactor 11. The exhaust hole 9 and the water outlet 7 are positioned on different sides of the ultraviolet light generating mechanism 8.

And a filter screen 13 is arranged in the water outlet 7 to reduce the loss of catalyst particles, and the aperture of filter holes on the filter screen is smaller than the particle size of the catalyst particles.

The utility model discloses a set up 1 messenger waste water of pipeline mixer before inlet tube 3, shortened the medicament mixing time with various medicament misce benes to improve treatment effeciency and effect. After the wastewater enters the reactor 11, the gas generated by aeration of the bottom aeration mechanism 4 is uniformly distributed through the holes of the grating plate 12 to disturb and stir the wastewater and the catalyst, so that the contact time of the catalyst and ultraviolet light with the wastewater is increased, the treatment efficiency and the treatment effect are improved, meanwhile, part of dissolved oxygen generated by aeration can be decomposed by the ultraviolet light generated by the ultraviolet light generation mechanism to generate hydroxyl radicals, and the generated hydroxyl radicals can reduce the addition of an oxidant. The ultraviolet light generating mechanism 8 is fixed on the top of the reactor 11 by adopting a detachable structure, and is convenient to detach and maintain. The setting of light reflection layer can make the ultraviolet ray of 8 transmission of mechanism take place for the ultraviolet ray shine waste water once more through the reflection of light reflection layer, can improve in the photocatalytic reaction district every place waste water shine long time, promotes the treatment effeciency, guarantees the treatment effect, reduces the requirement of arranging quantity and power to ultraviolet ray generation mechanism, practices thrift cost and energy.

The above-mentioned embodiments are illustrative and should not be construed as limiting the scope of the invention, which is defined by the appended claims, and all modifications of the equivalent forms of the present invention which are obvious to those skilled in the art after reading the present invention.

Claims (10)

1. The ultraviolet catalytic oxidation wastewater treatment device is characterized by comprising a pipeline mixer (1), a water inlet pipe (3) and a reactor (11) which are communicated in sequence; the reactor (11) is provided with an inner cavity, a grid plate (12) is arranged in the inner cavity, and the grid plate (12) divides the inner cavity into a first cavity (14) and a second cavity (15) which are distributed up and down; catalyst particles (10) are filled in the first cavity (14), an ultraviolet light generating mechanism (8) is arranged in the first cavity, and a light reflecting layer (6) is arranged on the inner wall of the first cavity (14); the water outlet (7) is communicated with the second cavity (15); the water inlet pipe (3) is communicated with the second cavity (15), and an aeration mechanism (4) is arranged in the second cavity (15).

2. The uv photocatalytic oxidation wastewater processor according to claim 1, characterized in that the light reflecting layer (6) is made of a metallic material.

3. A processor for waste water catalytic oxidation by ultraviolet light according to claim 2, characterized in that the light reflecting layer (6) is made of silver.

4. The ultraviolet photocatalytic oxidation wastewater processor according to the claim 1, characterized in that a check valve (2) is communicated between the pipeline mixer (1) and the water inlet pipe (3).

5. The ultraviolet photocatalytic oxidation wastewater processor according to claim 1, characterized by further comprising an air supply machine (5) for supplying an air supply to the aeration mechanism (4).

6. The ultraviolet photocatalytic oxidation wastewater processor as set forth in claim 1, characterized in that the grid plate (12) is provided with a plurality of holes, and the diameter of the holes is 2-5 mm.

7. The ultraviolet photocatalytic oxidation wastewater processor according to claim 1, characterized in that the inner cavity of the reactor is columnar, the ultraviolet light generating mechanism (8) is strip-shaped, and the ultraviolet light generating mechanism (8) extends along the axial direction of the inner cavity.

8. A processor for waste water catalytic oxidation by ultraviolet light according to claim 1, characterized in that the water outlet (7) is located at the top side of the reactor.

9. A processor for catalytic oxidation waste water of ultraviolet light according to any of the claims 1 to 8, characterized in that it further comprises a gas outlet (9) communicating with the first chamber (14), said gas outlet (9) being arranged at the top of the reactor (11).

10. A treater for ultraviolet light catalytic oxidation wastewater according to any one of claims 1 to 8, characterized in that a strainer (13) is provided in the water outlet (7).

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