Expanding method of non-polar ultraviolet catalytic wastewater degradation reactor capable of dispelling agglomerate

Abstract

The invention relates to an expanding method of a non-polar ultraviolet catalytic wastewater degradation reactor capable of dispelling agglomerate, and belongs to the technical field of wastewater treatment. In existing associated technology, problems that microwave energy is wasted, the single tank handling capacity is smaller, the oxygen supply concentration ratio in key areas is insufficient, the intercepting link of catalyst particles is weaker, the finish time of degradation reaction is hard to distinguish, the catalyst agglomerate cannot be powerfully dispelled in situ and the like exist. The scheme can be used for solving the series of problems. The method mainly comprises the following steps of: cutting off a microwave radiation airspace; expanding the reactor; guiding a bubble flow which is released to the key areas in high strength; gradually intercepting the catalyst particles by an external cascaded three-stage backflush type filter; dispelling the catalyst agglomerate by ultrasonic wave from the bottom of the reactor powerfully in situ and meanwhile carrying a clean quartz tube; sensing the reaction progress by an ozone sensor, driving a power supply control mechanism by a sensing electric signal, and shutting down associated power supplies at the moment of the finish time of degradation.

Description

technical field [0001] The invention relates to a method for expanding the capacity of an infinite ultraviolet photocatalytic wastewater degradation reactor capable of digesting agglomerates, and belongs 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 attracted much attention 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 shroude...

AI Technical Summary

Problems solved by technology

[0036] In the device structure expressed in the Chinese patent application with the publication number CN102260003A, the outer wall of the quartz tube used to screen the electrodeless ultraviolet lamp refers to the outer wall of the quartz tube, which is treated with the treated industrial wastewater for a long time. Contact, it is inevitable to gradually accumulate fouling. Of course, the fouling substances are mainly inorganic impurities that are not easily touched by the photocatalytic reaction. The fouling phenomenon formed by this mechanism is easy to be observed after the equipment has been running for a long time; Although the fouling layer on the outer wall of the quartz tube is only a thin layer, it is enough to significantly block the ultraviolet radiation of the electrodeless ultraviolet lamp, which will cause the actual treatment efficiency of the microwave photocatalytic reaction treatment device to be greatly reduced; The rising air bubbles in the reactor are too scattered and the flushing force is weak. It is really difficult to maintain the surface of the quartz tube by relying on the relatively dispersed air bubbles. In other words, the more dispersed air bubbles are more The weak scouring force is not enough to completely stop the fouling process on the surface of the quartz tube; 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 eliminated. Therefore, how to immediately and effectively remove the fouling layer on the outer wall of the quartz tube without dismantling the machine, and maintain the continuous high efficiency of the microwave photocatalytic treatment device, this problem cannot be ignored. Question 10