Waste water microwave photocatalytic degradation processing unit for preventing membrane separation component from thermal etching damage

Abstract

The invention relates to a waste water microwave photocatalytic degradation processing unit for preventing a membrane separation component from thermal etching damage, which belongs to the technical field of waste water processing. According to the conventional microwave photocatalytic degradation technology aiming at the industrial waste water containing organic pollutants, metal particles, carbon particles and the like which are inevitably adsorbed on the surface of the organic matter membrane separation component are good absorbing medium for microwave energy so as to generate the thermal etching damage problem of the membrane separation component, and in addition, the outer side surface of a quartz tube used for an electrodeless ultraviolet lamp screen shielding in a device generates the scaling phenomenon after being dipped in waste water liquid, the permeability of the quartz tube on ultraviolet is affected, and the processing efficiency of a microwave photocatalytic reaction device is lowered. According to the scheme disclosed by the invention, the problems are solved completely. According to the scheme, the membrane separation component is hidden in a box cage shaped microwave shielding cover made of metal so as to restrain the thermal etching damage problem, and a scale layer is instantly removed by high-frequency ultrasonic wave.

Description

technical field [0001] The invention relates to a waste water microwave photocatalytic degradation treatment device capable of preventing membrane separation components from being damaged by thermal corrosion, and belongs to the technical field of CO2F waste water treatment. Background technique [0002] Microwave photocatalytic degradation treatment technology, as an effective harmless treatment technology for industrial wastewater containing organic pollutants, has developed rapidly in recent years. [0003] Regarding the microwave photocatalytic degradation technology, as an example, refer to the Chinese patent application with publication number CN102260003A. [0004] The Chinese patent application with the publication number CN102260003A uses microwaves as the excitation source to excite the electrodeless ultraviolet lamp to emit ultraviolet rays, and irradiates the suspension mixed with photocatalyst titanium dioxide inside the liquid. The electrodeless ultraviolet lam...

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Problems solved by technology

[0007] On the other hand, in the device structure expressed in the Chinese patent application whose publication number is CN102260003A, the outer wall of the quartz tube used for shielding the electrodeless ultraviolet lamp refers to the outer wall of the quartz tube. When dealing with industrial wastewater, it is inevitable to gradually accumulate fouling. Of course, the fouling substances are mainly inorganic impurities that are not easily touched by photocatalytic reactions. The fouling phenomenon formed by this mechanism is easy to be observed after the equipment has been running for a long time ; the fouling layer attached to the outer wall of the quartz tube, though only a thin layer, is enough to cause significant blocking to the ultraviolet radiation of the electrodeless ultraviolet lamp, which will lead to the actual treatment effectiveness of this microwave photocatalytic reaction treatment device It is greatly reduced; during the use of the laboratory scale, the above-mentioned fouling problem is not easy to detect, but on the industrial application scale, the fouling problem will undoubtedly be highlighted; Under the premise, it is another technical issue worthy of attention to immediately and effectively remove the fouling layer on the outer wall of the quartz tube and maintain the continuous high efficiency of the microwave photocatalytic treatment device.

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