Microwave photocatalytic degradation treatment device for industrial wastewater containing organic pollutants

Abstract

The invention relates to a microwave photocatalytic degradation treatment device for industrial wastewater containing organic pollutants, which belongs to the technical field of wastewater treatment. In existing microwave photocatalytic degradation technology for industrial wastewater containing organic pollutants, scale can be formed on the outer side surface of a quartz tube for shielding an electrodeless ultraviolet lamp in a microwave photocatalytic reaction device after the quartz tube is soaked in the wastewater for a long time, due to the scale, the ultraviolet light transmission performance of the quartz tube is affected severely, and the treatment efficiency of the microwave photocatalytic reaction device is greatly reduced. The scheme aims to resolve the problem. The microwave photocatalytic degradation treatment device in the scheme structurally comprises a rod-shaped ultrasonic probe which is inserted in a reactor via the top of the reactor, so that real-time ultrasonic removal for scale on the outer side surface of a quartz tube is realized without stopping or detaching, the high ultraviolet light transmission performance of the quartz tube is maintained, and continuous high efficiency of the microwave photocatalytic degradation reactor is maintained. Due to the assembly mode in the scheme, liquid is not easy to leak, and the device can be detached and replaced conveniently.

Description

technical field [0001] The invention relates to a microwave photocatalytic degradation treatment device for industrial wastewater containing organic pollutants, belonging to the technical field of CO2F wastewater 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 lamp is shrouded and protected by a quartz tube. , an ...

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Problems solved by technology

[0006] As mentioned above, in the device structure expressed in the Chinese patent application with the publication number CN102260003A, the outer wall of the quartz tube used for shielding the electrodeless ultraviolet lamp refers to the outer wall of the quartz tube. The contact with industrial wastewater will inevitably accumulate scale gradually. Of course, the scaled substances are mainly inorganic impurities that are not easily touched by photocatalytic reactions. The scaling phenomenon formed by this mechanism is easy to be observed after the equipment has been running for a long time Although the scale layer attached to the outer wall of the quartz tube is only a thin layer, it is enough to cause significant blocking to the ultraviolet radiation of the electrodeless ultraviolet lamp, which will cause the actual treatment effect 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 has become an important 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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