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Photocatalysis device for degrading printing and dyeing wastewater

A technology of printing and dyeing wastewater and photocatalysis, which is applied in the direction of textile industry wastewater treatment, physical/chemical process catalyst, organic compound/hydride/coordination complex catalyst, etc. Fluctuation, large secondary pollution and other problems, to achieve the effect of reusable anti-interference ability, wide range of visible light response frequency, and small secondary pollution

Inactive Publication Date: 2019-01-22
镇江东江环保技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above technical problems, the present invention provides a photocatalytic device for degrading printing and dyeing wastewater, which solves the problems of low degradation efficiency, high energy consumption, large secondary pollution, and inability to cope with large fluctuations in sewage indicators in the existing catalytic oxidation treatment.

Method used

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  • Photocatalysis device for degrading printing and dyeing wastewater
  • Photocatalysis device for degrading printing and dyeing wastewater
  • Photocatalysis device for degrading printing and dyeing wastewater

Examples

Experimental program
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Embodiment 1

[0023] Embodiment 1 is used to degrade the photocatalytic device I of printing and dyeing wastewater

[0024] Such as Figure 1-3As shown in , a photocatalytic device for degrading printing and dyeing wastewater includes a pool body 1, three light source mounting plates 2 are vertically arranged in the pool body 1, and a light source 2a is arranged in the light source mounting plate 2, so The light source mounting plate 2 divides the pool body 1 into a plurality of mixed flow chambers, the upper part of the light source mounting plate 2 is provided with a liquid guide hole 2b, and the top of the pool body 1 is provided with a water inlet 1a and a water outlet 1b, The water inlet 1a and the water outlet 1b are respectively located in the two outer mixing chambers, a stirring shaft 3 is vertically pierced in the mixing chamber, and three swirl blade assemblies are arranged on the upper part of the stirring shaft 3, The lower part of the stirring shaft 3 is rotatably connected w...

Embodiment 2

[0031] Example 2 Photocatalytic device II for degrading printing and dyeing wastewater

[0032] Such as Figure 1-3 As shown in , a photocatalytic device for degrading printing and dyeing wastewater includes a pool body 1, three light source mounting plates 2 are vertically arranged in the pool body 1, and a light source 2a is arranged in the light source mounting plate 2, so The light source mounting plate 2 divides the pool body 1 into a plurality of mixed flow chambers, the upper part of the light source mounting plate 2 is provided with a liquid guide hole 2b, and the top of the pool body 1 is provided with a water inlet 1a and a water outlet 1b, The water inlet 1a and the water outlet 1b are respectively located in the two outer mixing chambers, a stirring shaft 3 is vertically pierced in the mixing chamber, and three swirl blade assemblies are arranged on the upper part of the stirring shaft 3, The lower part of the stirring shaft 3 is rotatably connected with an aerati...

Embodiment 3

[0039] Example 3 Photocatalytic device III for degrading printing and dyeing wastewater

[0040] Such as Figure 1-3 As shown in , a photocatalytic device for degrading printing and dyeing wastewater includes a pool body 1, three light source mounting plates 2 are vertically arranged in the pool body 1, and a light source 2a is arranged in the light source mounting plate 2, so The light source mounting plate 2 divides the pool body 1 into a plurality of mixed flow chambers, the upper part of the light source mounting plate 2 is provided with a liquid guide hole 2b, and the top of the pool body 1 is provided with a water inlet 1a and a water outlet 1b, The water inlet 1a and the water outlet 1b are respectively located in the two outer mixing chambers, a stirring shaft 3 is vertically pierced in the mixing chamber, and three swirl blade assemblies are arranged on the upper part of the stirring shaft 3, The lower part of the stirring shaft 3 is rotatably connected with an aerat...

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Abstract

The invention discloses a photocatalysis device for degrading printing and dyeing wastewater. The photocatalysis device comprises a pool body, wherein at least two light source installation plates arevertically arranged in the pool body and are used for dividing the pool body into a plurality of flow mixing chambers; a stirring shaft is vertically penetrated in each flow mixing chamber and is provided with at least one swirl vane component; the lower end of each stirring shaft penetrates out of the pool body to be fixedly sheathed with a belt pulley; and a plurality of belt pulleys are sheathed with the same belt. Compared with the prior art, the photocatalysis device comprises photocatalysis and Fenton oxidation which are carried out simultaneously, the plurality of flow mixing chambersare used for prolonging wastewater retention time, the rotation direction of each stirring shaft is changed to drive the swirl vane to rotate and continuously change a stirring range, the swirl reaction of sewage in the device is realized so as to accelerate photocatalyst and hydrogen peroxide to fully react, .OH is generated, the light source installation plates including light sources are used as the partition plates so as to guarantee the effective irradiation range of the light source. The photocatalyst has the characteristics of wide visible light response frequency range, high light conversion efficiency and good stability.

Description

technical field [0001] The invention relates to the field of organic wastewater treatment, in particular to a photocatalytic device for degrading printing and dyeing wastewater. Background technique [0002] my country is a big country in the textile printing and dyeing industry. The textile printing and dyeing industry not only consumes a lot of water, but also discharges a lot of wastewater. According to statistics, the average production of 1kg product requires consumption of 0.2-0.5m 3 At present, the total discharge of printing and dyeing wastewater in my country accounts for about 35% of the total industrial wastewater. Printing and dyeing wastewater is difficult to treat because of its complex composition, high chroma, and high organic matter content, and the fact that various dyes and auxiliaries used in the printing and dyeing process are highly toxic and difficult to be biodegraded. In recent years, with the rapid development of the printing and dyeing industry, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/30C02F1/72B01J31/28C02F103/30C02F101/30
CPCC02F1/30C02F1/722C02F1/725B01J31/28C02F2305/026C02F2305/10C02F2103/30C02F2101/308B01J35/396B01J35/39
Inventor 胡玖坤胡娜李秀玉田亮
Owner 镇江东江环保技术开发有限公司
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