Device for degrading organic pollutants through catalytic oxidation

Abstract

The invention discloses a device for catalytic oxidation degradation of organic pollutants. The device comprises a reactor and an ozone microbubble generator. The reactor is internally divided into a left chamber and a right chamber by a partition plate, a water outlet is formed in the side wall of the left chamber, and an air inlet and a water inlet are formed in the side wall of the right chamber. The ozone microbubble generator is communicated with the air inlet, and the water inlet is communicated with the wastewater storage tank through a valve and a peristaltic pump; wherein a catalytic material layer, a catalyst cushion layer and a catalyst supporting grating are sequentially arranged in the left chamber from top to bottom; a gas outlet is formed in the top of the reactor. Based on the reasonable structural layout and component arrangement, the ozone is microbubbled, and wastewater and ozone are mixed from bottom to top, so that the contact area and contact time of the wastewater and the ozone are increased, and the mass transfer efficiency and the degradation quality are improved. By arranging the peristaltic pump, the flow of the wastewater can be adjusted, and the retention time of the wastewater in the reaction column can be controlled. The device for treating the wastewater is simple in process, easy to operate and controllable in process.

Description

technical field [0001] The invention belongs to the field of organic chemical wastewater treatment, and in particular relates to a device for catalytic oxidation degradation of organic pollutants in water. Background technique [0002] Ozone oxidation technology has shown certain advantages in the treatment of trace organic pollutants that are difficult to degrade in water. However, due to the poor gas-liquid mass transfer effect of the direct ozone oxidation technology, the oxidation technology consumes a lot of energy and is expensive, which limits its further promotion and application. In contrast, the utilization rate of the ozone catalytic oxidation process has been greatly improved compared with the single ozone oxidation. [0003] The catalytic oxidation process refers to the use of catalysts in the advanced oxidation process to improve the oxidation efficiency and reduce the activation energy of the reaction, so that the oxidation reaction can achieve satisfactory r...

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Problems solved by technology

[0007] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a novel device for catalytic oxidation degradation of organic pollutants to solve the problems of low mass transfer efficiency, uncontrollable wastewater concentration, and low catalytic efficiency.

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