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A photocatalytic degradation device for water treatment and its preparation method

A photocatalysis and water treatment technology, applied in the application field of 3D technology in water treatment, can solve the problems of high cost, cumbersome installation and assembly process, complex structure, etc., to achieve improved effect, excellent catalytic effect, extended contact area and duration. Effect

Active Publication Date: 2021-04-30
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure of the existing photocatalytic devices for water treatment is relatively complicated, and the cost is high. At the same time, the production, installation and assembly process of these devices are very cumbersome. Therefore, those skilled in the art urgently need to develop a simple, economical and practical device. Treatment device to degrade organic pollutants and sterilize tap water

Method used

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  • A photocatalytic degradation device for water treatment and its preparation method
  • A photocatalytic degradation device for water treatment and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as Figure 1-2 As shown, a photocatalytic degradation device for water treatment, the device includes an upper and lower connected filter part and a photocatalytic part, the filter part is composed of a filter unit with a cover, and the filter unit includes A square box 11 with an open top, a closed bottom, and a water outlet 5. The four corners of the top of the box 11 are respectively provided with insertion grooves 3, and the four corners of the bottom are respectively provided with insertion rods 4. The box 11 is wrapped around the bottom of the box. Four vertical filter plates 1 arranged at equal intervals, and the space in the box is divided into four spaces by four vertical filter plates 1, and the bottoms of the adjacent three vertical filter plates are provided with filter holes 12. The aperture of filter hole 12 is 1mm. .

[0030] The bottom surface of the cover 13 is provided with an insertion rod 4 and is mated with the insertion groove 3 of the filte...

Embodiment 2

[0039] The difference between this embodiment and Embodiment 1 is that the photocatalytic part is composed of three photocatalytic units, and the others are the same.

Embodiment 3

[0041]The difference between this embodiment and embodiment 2 is that the preparation method of the photocatalytic degradation device for water treatment is as follows:

[0042] 1) Take 10 parts of nano-titanium dioxide, 90 parts of PLA and 3 parts of TPU in parts by mass, mix and stir after drying to prepare a mixture;

[0043] 2) Heat and blend the mixture in an extruder, extrude and cut into pellets to obtain the mixture and dry it at 80°C for 2 hours;

[0044] 3) Add the dried blend obtained in step 2) into a wire drawing machine and draw to obtain a wire for 3D printing;

[0045] 4) Use the 3D printing wire obtained in step 3) as the raw material, and use the FDM3D printer to print the formed capping frame, filter unit and photocatalytic unit respectively, and of course mating them to obtain the photocatalytic degradation device for water treatment .

[0046] Effect example:

[0047] 1) Take the photocatalytic degradation device for water treatment described in Example...

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Abstract

The invention relates to a photocatalytic degradation device for water treatment and a preparation method thereof. The device includes a filter part and a photocatalytic part arranged up and down and communicated with each other. The filter part is composed of a filter unit and a cover, and the filter unit The upper and lower mating sets and communicate with each other; the photocatalytic part is composed of a photocatalytic unit with an upper and lower mating arrangement, and the photocatalytic unit includes a closed box with a serpentine channel inside, and the top of the box is The surface is provided with a water inlet connected with the water outlet, and the bottom surface is provided with a water outlet; the cover closes the top opening of the uppermost filter unit and the cover is provided with a water inlet. The present invention utilizes 3D printing rapid prototyping technology to quickly print composite materials with catalytic performance into a photocatalytic degradation device with a new structure, which not only has a fast production speed and high precision, but also has a simple overall process and low cost. The water body showed good organic pollutant degradation efficiency and excellent bactericidal performance.

Description

technical field [0001] The invention relates to the application of 3D technology in water treatment, in particular to a water treatment photocatalytic degradation device based on 3D printing of photocatalytic materials and a preparation method thereof. Background technique [0002] More than 80% of water plants use chlorination as a means of sterilizing water sources to ensure the safety of drinking water in cities and towns. However, after chlorination and disinfection, chlorine will remain in the water, which will cause certain harm to human health. At the same time, the application of photocatalytic technology in water treatment is a brand-new research and development field. Its essence is the photochemical reaction carried out under the catalyst, so it combines photochemistry and catalytic chemistry. The basic principle of its application in water treatment is that when the energy photons match, the electrons are excited to transition to form photogenerated electron-hol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/08C02F101/30C02F101/20
CPCC02F1/001C02F1/32C02F2101/20C02F2101/30C02F2301/08C02F2305/10
Inventor 周武艺刘迪陈子尧高琼芝董先明
Owner SOUTH CHINA AGRI UNIV
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