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Integrated mechanical photocatalytic membrane separation coupling reactor and wastewater treatment method thereof

A photocatalytic membrane and mechanical technology, which is applied in the field of integrated mechanical photocatalytic membrane separation coupling reactor and its wastewater treatment, can solve the problems of short membrane life, difficult separation of photocatalyst, complicated structure of photocatalytic membrane device, etc. Achieve the effect of low production cost, low energy consumption and high efficiency

Active Publication Date: 2018-01-09
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Purpose of the invention: The purpose of the present invention is to provide a method that can overcome the problems of the existing photocatalytic membrane device structure is relatively complicated, the reactor solid photocatalyst is difficult to separate, and the membrane life is short, the service life is long, the cost is low, and the integration degree is high. photocatalytic-membrane separation reactor

Method used

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  • Integrated mechanical photocatalytic membrane separation coupling reactor and wastewater treatment method thereof
  • Integrated mechanical photocatalytic membrane separation coupling reactor and wastewater treatment method thereof

Examples

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Embodiment 1

[0024] figure 1 It is the view of the integrated mechanical photocatalytic membrane separation coupling reactor of the present invention, figure 2 It is a top view of the integrated mechanical photocatalytic membrane separation coupling reactor of the present invention. Such as figure 1 and figure 2 As shown, the integrated mechanical photocatalytic membrane separation coupling reactor is provided with a water inlet zone 1, a mixing zone 2, a reaction zone 3 and a water outlet zone 4. The mixing zone 2 and the reaction zone 3 are columnar containers respectively, the lower ends of the side walls of the two are flush, and the relative positions of the mixing zone 2, the reaction zone 3 and the water outlet zone 4 are in the shape of concentric sleeves arranged sequentially from inside to outside. The water inlet zone 1 is a tubular structure lying under the mixing zone 2 , the reaction zone 3 and the water outlet zone 4 .

[0025] The water inlet 1 is provided with a wate...

Embodiment 2

[0030] The integrated mechanical photocatalytic membrane separation coupling reactor of Example 1 is used to process coking wastewater. The initial COD value of coking wastewater is 163.5mg / L, and the TOC value is 12mg / L. The treatment conditions are as follows:

[0031] Processing time: 60min;

[0032] Photocatalyst dosage: 2.5g / L;

[0033] The COD value in the treated wastewater is 70.3mg / L, and the TOC value is 2.8mg / L;

[0034] In addition, ordinary photocatalytic process equipment is used to treat coking wastewater. The initial COD value of coking wastewater is 163.5mg / L, TOC value is 12mg / L, the experimental conditions (treatment time and photocatalyst dosage) are exactly the same, and the COD value after treatment is 98.8mg / L. The TOC value is 3.9mg / L.

Embodiment 3

[0036] Use the integrated mechanical photocatalytic membrane separation coupling reactor of embodiment 1 to process commercial humic acid and prepare water to be treated, COD value 89.8mg / L, TOC value 8.7mg / L, process under the following conditions:

[0037] Processing time: 40min;

[0038] Photocatalyst dosage: 1.5mg / L;

[0039] After treatment, the COD value is 38.6mg / L, and the TOC value is 1.6mg / L;

[0040] In addition, ordinary photocatalytic process equipment is used to process commercial humic acid to prepare water to be treated. The COD value is 89.8mg / L, the TOC value is 8.7mg / L, the experimental conditions (treatment time and photocatalyst dosage) are exactly the same, and the COD value after treatment is 49.1mg. / L, TOC value 2.9mg / L.

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Abstract

The invention discloses an integrated mechanical photocatalytic membrane separation coupling reactor. The integrated mechanical photocatalytic membrane separation coupling reactor comprises a water inlet zone, a mixing zone, a reaction zone and a water outlet zone, wherein the water inlet zone is provided with a water inlet; the mixing zone at least comprises a mixing zone side wall and a bottom;the mixing zone side wall can move up and down relative to the bottom thereof; a mechanical stirrer is arranged inside the mixing zone; the mixing zone is communicated with the water inlet zone through the bottom thereof; the mixing zone is separated from the reaction zone in a sealed manner through the mixing zone side wall; the reaction zone at least comprises a reaction zone side wall; a filtermembrane is arranged on the reaction zone side wall; an ultraviolet lamp is arranged inside the reaction zone; the reaction zone at least enwraps the lower part of the mixing zone side wall; the reaction zone side wall separates the reaction zone from the water outlet zone; the water outlet zone is provided with a water collecting pipe. The invention further discloses a method for treating wastewater by using the integrated mechanical photocatalytic membrane separation coupling reactor. The integrated mechanical photocatalytic membrane separation coupling reactor is high in degree of integration, convenient to carry, convenient and fast to operate, low in production cost and high in photocatalyst using efficiency, and has a relatively good application prospect.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to an integrated mechanical photocatalytic membrane separation coupling reactor and a wastewater treatment method thereof. Background technique [0002] In recent years, due to the needs of industrial and economic development, a lot of industrial wastewater containing toxic substances has been continuously discharged into the environment. The toxic substances in it are difficult to biodegrade, which has brought great harm to industrial and agricultural production, people's lives and human health. How to effectively deal with these waste water that causes environmental pollution has become a research hotspot in the field of environment. Photocatalytic oxidation technology is a new type of water pollution control technology, which has the characteristics of high efficiency, energy saving, and wide application range. It is often used to treat organic substances that are di...

Claims

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Application Information

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IPC IPC(8): C02F1/32
Inventor 宋海亮吉志一杨小丽
Owner SOUTHEAST UNIV