Compound ozone light-catalyzed reaction device

Abstract

The invention relates to a compound ozone light-catalyzed reaction device. The center of the lower part of the reaction device is provided with an ultraviolet light source, and an ozone reaction chamber and a light-catalyzed reaction chamber are sequentially arranged from the center to the outside of the reaction device; the upper part of the reaction device is provided with a gas-liquid separation chamber; the ozone reaction chamber is separated from the light-catalyzed reaction chamber through quartz glass. The device provided by the invention has the advantages that an ozone oxidation treatment technology and a light-catalyzed treatment technology are combined, and the wastewater ozone and light-catalyzed two-stage advanced oxidation treatment is realized in the same reaction device by sufficiently utilizing the ultraviolet light source on the basis that no ozone sources are additionally provided, so that the treatment efficiency of the device is greatly increased, the treatment cost is reduced, and the device can be popularized and applied to rapid treatment of high-concentration and degradable organic wastewater.

Description

technical field [0001] The invention relates to the technical field of organic wastewater treatment, in particular to a composite ozone photocatalytic reaction device. Background technique [0002] With the rapid development of modern industry and the improvement of human material consumption level, the problem of water environment pollution has become increasingly prominent. In the past ten years, many countries have formulated very strict pollutant discharge standards, and my country has also formulated corresponding water pollutant discharge standards for wastewater discharged from different industries. These standards specifically require strict monitoring of pollutants that have toxic effects on the ecosystem, while those that are toxic and difficult to biodegrade need to be removed by other non-biodegradable treatment methods. For these biodegradable pollutants, advanced oxidation technology is a commonly used method at present. [0003] Ozone catalytic oxidation tec...

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Problems solved by technology

[0006] 1. The ozone photocatalytic equipment is relatively complicated: since the current ozone photocatalytic treatment technology needs to add ozone to the wastewater, the wastewater treatment equipment must contain an ozone generating unit, which increases the functional units of the equipment and increases the difficulty of equipment integration At the same time, it also increases the volume and scale of the complete set of wastewater treatment equipment, which increases the investment cost of equipment;

[0007] 2. The corresponding influence of ozone and the photocatalytic process: In the photocatalytic process, the radiation intensity of the ultraviolet lamp is directly related to the oxidation efficiency of wastewater, and because ozone itself has a certain absorption capacity for ultraviolet light, the radiation intensity of the ultraviolet lamp decline

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