PDS / PMS oxidation sewage treatment integrated device

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a PDS / PMS oxidation sewage treatment integrated device. Comprising a box body, a partition plate is fixed in the box body and divides the interior of the box body into a lower chamber and an upper chamber, a stirring assembly and a plurality of lower ultraviolet lamps are arranged in the lower chamber, a sleeve is fixed in the upper chamber above the lower chamber, a spraying disc is fixed in the upper end of the sleeve, an inner ring is fixed in the sleeve below the spraying disc, and a honeycomb catalyst is placed in the inner ring. A plurality of upper ultraviolet lamps are fixed in the inner ring below the honeycomb catalyst, a water pump is fixed on the box body, a water pumping pipe of the water pump is communicated with the lower chamber, and a water draining pipe of the water pump is communicated with the spraying disc. According to the device, sewage containing persulfate is atomized and sprayed onto a honeycomb catalyst with a large specific surface area, so that the sewage forms a thin water film on the honeycomb catalyst, and organic matters in the sewage are deeply degraded under continuous irradiation of an upper chamber ultraviolet lamp.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a PDS / PMS oxidation sewage treatment integrated device. Background Art

[0002] With the acceleration of industrialization and urbanization, water pollution is becoming increasingly serious, especially the treatment of difficult-to-degrade organic pollutants has become a major challenge in the field of environmental protection. In the existing technology, photocatalytic technology has attracted widespread attention due to its green and efficient characteristics, but it has the problem of low treatment efficiency when used alone. Peroxymonosulfate (PMS) and peroxydisulfate (PDS) are strong oxidants that can generate a variety of active free radicals under photocatalytic conditions, significantly enhancing the oxidative degradation ability. However, how to effectively integrate the PMS and PDS photocatalytic processes and optimize the treatment efficiency remains a technical problem that needs to be solved urgently. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an integrated PDS / PMS oxidation sewage treatment device which can atomize and spray sewage onto a honeycomb catalyst to form a thin layer of water film, and at the same time, under the cooperation of ultraviolet lamps, improve the contact efficiency of highly active substances with strong oxidizing ability and organic molecules in the sewage, thereby accelerating the degradation reaction.

[0004] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0005] A PDS / PMS oxidation sewage treatment integrated device includes a box body, a partition is fixed in the box body, the partition divides the interior of the box body into a lower chamber and an upper chamber, a stirring assembly and multiple lower ultraviolet lamps are arranged in the lower chamber, an inlet pipe connected to the lower chamber is fixed on the box body, an outlet pipe connected to the upper chamber is fixed on the box body, a sleeve is fixed in the upper chamber part above the lower chamber, a gap is provided between the lower end of the sleeve and the upper end of the partition, a spray plate is fixed in the upper end of the sleeve, an inner ring is fixed in the sleeve below the spray plate, multiple supporting rods are fixed to the upper end of the partition inside the inner ring, a honeycomb catalyst is placed in the inner ring, the supporting rods support the honeycomb catalyst, multiple upper ultraviolet lamps are fixed in the inner ring below the honeycomb catalyst, a water pump is fixed on the box body, a water pump pipe is connected to the lower chamber, and a water pump drain pipe is connected to the spray plate.

[0006] Specifically, the stirring assembly includes a stirring rod rotatably arranged in the lower chamber, a motor is fixed on the box body, and the output shaft of the motor is fixedly connected to the stirring rod.

[0007] Specifically, the stirring rod is located between the multiple lower ultraviolet lamps.

[0008] Specifically, a plurality of support rods are fixed to the lower end of the inner ring, and the lower ends of the support rods are in contact with the upper end of the partition.

[0009] Specifically, the plurality of upper ultraviolet lamps are arranged in a linear array in the transverse direction inside the inner ring.

[0010] Specifically, a dosing pipe communicating with the lower chamber is fixed on the box body.

[0011] Specifically, the honeycomb catalyst is an activated carbon honeycomb catalyst.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. This device atomizes and sprays persulfate-containing wastewater onto a honeycomb catalyst with a large surface area, forming a thin film of water on the catalyst. Under continuous irradiation from the upper chamber's ultraviolet light, oxygen-containing species such as sulfate radicals, hydroxyl radicals, superoxide radicals, and singlet oxygen react with organic molecules in the wastewater on the honeycomb catalyst surface, further degrading the organic matter in the wastewater. The large surface area of ​​the honeycomb catalyst increases the contact efficiency between oxygen-containing species such as sulfate radicals, hydroxyl radicals, superoxide radicals, and singlet oxygen and organic molecules, accelerating the degradation reaction.

[0014] 2. The sewage is treated in both the lower chamber and the upper chamber, which can achieve dual treatment of sewage and has a good sewage treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A cross-sectional view of the device.

[0016] Figure 2 Schematic diagram of the honeycomb catalyst in the inner ring.

[0017] The names of the parts in the accompanying drawings are: 1. Box body, 2. Inlet pipe, 3. Outlet pipe, 4. Partition, 5. Lower chamber, 6. Upper chamber, 7. Lower UV lamp, 8. Stirring rod, 9. Motor, 10. Water pump, 11. Suction pipe, 12. Drain pipe, 13. Spray plate, 14. Sleeve, 15. Inner ring, 16. Honeycomb catalyst, 17. Upper UV lamp, 18. Support rod, 19. Support rod, 20. Dosing pipe. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Example 1: Reference Figure 1 and Figure 2As shown, a PDS / PMS oxidation sewage treatment integrated device includes a box body 1, a partition 4 is fixed inside the box body 1, and the partition 4 divides the interior of the box body 1 into a lower chamber 5 and an upper chamber 6.

[0020] A plurality of lower ultraviolet lamps 7 are arranged in the lower chamber 5. An inlet pipe 2 communicating with the lower chamber 5 is fixed on the box body 1. An outlet pipe 3 communicating with the upper chamber 6 is fixed on the box body 1. A dosing pipe 20 communicating with the lower chamber 5 is fixed on the box body 1.

[0021] A sleeve 14 is fixed in the upper chamber 6 above the lower chamber 5, and a gap is provided between the lower end of the sleeve 14 and the upper end of the partition 4. A spray plate 13 is fixed in the upper end of the sleeve 14, and an inner ring 15 is fixed in the sleeve 14 below the spray plate 13. A plurality of support rods 18 are fixed to the lower end of the inner ring 15, and the lower ends of the support rods 18 are in contact with the upper end of the partition 4. A plurality of support rods 19 are fixed to the upper end of the partition 4 inside the inner ring 15, and a honeycomb catalyst 16 is placed in the inner ring 15. The honeycomb catalyst 16 is an activated carbon honeycomb catalyst. The support rods 19 support the honeycomb catalyst 16. A plurality of upper ultraviolet lamps 17 are fixed in the inner ring 15 below the honeycomb catalyst 16. The plurality of upper ultraviolet lamps 17 are linearly arrayed in the transverse direction inside the inner ring 15.

[0022] A water pump 10 is fixed on the box body 1 , a water pump pipe 11 of the water pump 10 is communicated with the lower chamber 5 , and a drain pipe 12 of the water pump 10 is communicated with the spray plate 13 .

[0023] During operation, sewage enters the lower chamber 5 through the inlet pipe 2. Persulfate is then added to the sewage in the lower chamber 5 via the dosing pipe 20. After the sewage and persulfate mix in the lower chamber 5, the persulfate molecules are activated by ultraviolet light from the lower ultraviolet lamp 7, triggering a chain reaction that produces oxygen-containing species such as persulfate radicals, hydroxyl radicals, superoxide radicals, and singlet oxygen. These oxygen-containing species have strong oxidizing properties and can effectively degrade organic pollutants and toxic substances in the sewage.

[0024] After starting the water pump 10, it atomizes the wastewater from the lower chamber 5 through the spray plate 13 and sprays it onto the honeycomb catalyst 16. Honeycomb catalyst 16 has a large surface area, forming a thin film of water on the wastewater. Under the continuous irradiation of the upper ultraviolet lamp 17, oxygen-containing species such as sulfate radicals, hydroxyl radicals, superoxide radicals, and singlet oxygen further react with organic molecules in the wastewater on the surface of the honeycomb catalyst 16, further degrading the organic matter in the wastewater. During this process, the large surface area of ​​the honeycomb catalyst 16 increases the contact efficiency between oxygen-containing species such as sulfate radicals, hydroxyl radicals, superoxide radicals, and singlet oxygen and organic molecules, accelerating the degradation reaction. The wastewater, after two treatments, is discharged through the outlet pipe 3.

[0025] Example 2: Based on Example 1, refer to Figure 1 As shown, a stirring assembly is provided in the lower chamber 5, and the stirring assembly includes a stirring rod 8 that is rotatably provided in the lower chamber 5. A motor 9 is fixed on the box body 1, and the output shaft of the motor 9 is fixedly connected to the stirring rod 8. The stirring rod 8 is located between multiple lower ultraviolet lamps 7.

[0026] After the motor 9 is started, the stirring rod 8 can rotate and stir the sewage in the lower chamber 5, which can improve the mixing efficiency of persulfate and sewage and further improve the sewage treatment efficiency.

[0027] In this embodiment, catalyst particles (such as TiO2, ZnO, etc.) can also be added to the lower chamber 5 through the dosing pipe 20. The catalyst particles float freely in the sewage and are fully exposed to the ultraviolet light, promoting the generation of free radicals and the initial decomposition of organic matter. To prevent the catalyst particles from entering the spray pan 13, a filter is required at the inlet end of the water extraction pipe 11.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A PDS / PMS oxidation sewage treatment integrated device, comprising a housing (1), characterized in that: A partition (4) is fixed in the box (1), and the partition (4) divides the interior of the box (1) into a lower chamber (5) and an upper chamber (6). A stirring assembly and a plurality of lower ultraviolet lamps (7) are provided in the lower chamber (5). An inlet pipe (2) communicating with the lower chamber (5) is fixed on the box (1), and an outlet pipe (3) communicating with the upper chamber (6) is fixed on the box (1). A sleeve (14) is fixed in the upper chamber (6) above the lower chamber (5), and a gap is provided between the lower end of the sleeve (14) and the upper end of the partition (4). A spray disc (13) is fixed in the upper end of the sleeve (14), and the spray disc (13) ) is fixed in the sleeve (14) below the housing (1), a plurality of supporting rods (19) are fixed to the upper end of the partition (4) inside the inner ring (15), a honeycomb catalyst (16) is placed in the inner ring (15), and the supporting rods (19) support the honeycomb catalyst (16), a plurality of upper ultraviolet lamps (17) are fixed inside the inner ring (15) below the honeycomb catalyst (16), a water pump (10) is fixed on the housing (1), a water pump (11) of the water pump (10) is connected to the lower chamber (5), and a water discharge pipe (12) of the water pump (10) is connected to the spray plate (13).

2. The integrated PDS / PMS oxidation wastewater treatment device according to claim 1, characterized in that: The stirring assembly comprises a stirring rod (8) rotatably arranged in the lower chamber (5); a motor (9) is fixed on the box body (1); and an output shaft of the motor (9) is fixedly connected to the stirring rod (8).

3. The integrated PDS / PMS oxidation wastewater treatment device according to claim 2, characterized in that: The stirring rod (8) is located between the multiple lower ultraviolet lamps (7).

4. The integrated PDS / PMS oxidation wastewater treatment device according to claim 1, characterized in that: A plurality of support rods (18) are fixed to the lower end of the inner ring (15), and the lower ends of the support rods (18) are in contact with the upper end of the partition (4).

5. The integrated PDS / PMS oxidation wastewater treatment device according to claim 1, characterized in that: The plurality of upper ultraviolet lamps (17) are arranged in a linear array in the transverse direction inside the inner ring (15).

6. The integrated PDS / PMS oxidation wastewater treatment device according to claim 1, characterized in that: A drug adding pipe (20) communicating with the lower chamber (5) is fixed on the box body (1).

7. The integrated PDS / PMS oxidation wastewater treatment device according to claim 1, characterized in that: The honeycomb catalyst (16) is an activated carbon honeycomb catalyst.

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