Secondary-ozone-depletion-allowable microwave photocatalytic wastewater degradation reactor capacity-expansion method

Abstract

The invention relates to a secondary-ozone-depletion-allowable microwave photocatalytic wastewater degradation reactor capacity-expansion method, belonging to the technical field of wastewater treatment. The existing correlation technique has the problems of weak entrapment link, overlow single-tank capacity of the reactor, high frequency of repetitive operation, insufficient interior liquid circulation intensity, incomplete ozone utilization, indistinguishable end time of degradation reaction, and the like, and the scheme provided by the invention aims at the problems above. The method mainly comprises the following steps: limiting a microwave radiation region; bunching a rising gas bubble flow, and guiding the gas bubble flow to an intensive degradation reaction region; carrying out cascade interception on the catalyst particles with an external cascade three-stage back-flush filter; and arranging an ozone sensor at an exhaust emission port, and transmitting the output electric signal to a power supply controller connected with a magnetron and an air pump. The method can immediately shut down the energy implantation to the reactor and immediately terminate the ozone generation process when the degradation reaction reaches the end point, thereby preventing secondary pollution.

Description

technical field [0001] The invention relates to a method for expanding the capacity of a microwave photocatalytic wastewater degradation reactor that allows depletion of secondary ozone, 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 shrouded and...

AI Technical Summary

Problems solved by technology

[0031] The operation of the wastewater catalytic degradation reactor needs to consume energy. Therefore, the operator will definitely hope that when the wastewater degradation reaction reaches the end, it can be impartial, neither too early nor too late to stop the continuous injection into the reactor. Energy; if the time to stop injecting energy is too early, the degradation of wastewater will not be complete; and if the end of the reaction has already been reached, but still continue to inject energy into the reactor, it is undoubtedly a waste of precious energy

As the structure of the CN102260003A scheme of the technical background of this case, any instant information cannot be given to the terminal moment of the wastewater degradation reaction, so, the terminal point of the wastewater degradation reaction can only be estimated by experience; and the terminal point of the wastewater degradation reaction is estimated by experience, That is obviously unsatisfactory; then, how to make an immediate information output that is neither advanced nor delayed for the end point of the wastewater degradation reaction, and immediately shut down the energy input to the reactor at just the right moment is a technology that cannot be underestimated Threshold, this is the seventh question