Re-improving the expansion method of photocatalytic wastewater degradation reactor with catalyst interception

Abstract

The invention relates to a method for expanding a photocatalysis wastewater degradation reactor for perfecting catalytic agent intercept and belongs to the technical field of wastewater treatment. The problems that the microwave energy is wasted, the single-tank wastewater treatment amount is small, the oxygen concentration degree is insufficient in a key area, the catalytic agent is eroded, the degradation terminal point is difficultly identified, a catalyst agglomeration cannot be powerfully dissipated in situ, the catalyst agglomeration cannot be timely observed and the like exist in the conventional related technologies. The method aims to solve the series of problems. The method comprises the following steps: isolating the microwave irradiation air space, expanding the size of the reactor, guiding the bubble flow to release to a key area at high strength, gradually intercepting catalyst particles by using an external cascade three-stage backwash filter; dissipating the catalyst agglomeration by using the ultrasonic in-situ power at the bottom of the reactor, and incidentally cleaning the quartz tube; sensing the reaction progress by using an ozone sensor, and immediately closing the related power supply when degradation end point is reached; actively sensing the main cause parameter of the catalyst agglomeration, and automatically giving an alarm when the limit is exceeded, and the like.

Description

technical field [0001] The invention relates to a method for expanding the capacity of a photocatalytic wastewater degradation reactor with improved catalyst interception, 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 protected by a...

AI Technical Summary

Problems solved by technology

[0044] Based on the structure of the CN102260003A scheme, during its operation, the water pump that fills the reactor cavity with waste water cannot judge whether the water level inside the reactor is high or low, and the operator can only rely on experience or visual inspection to turn off the water pump that fills the waste water in time Motor, if the experience is wrong or the visual response is not timely enough, it is easy to overflow the reactor due to excessive filling of waste water, which will cause unnecessary trouble; The membrane module pumps water outward. Without knowing the water level inside the reactor, the timing of shutting down the pump can only be judged based on experience or visual inspection. This operation is obviously unreliable, and it is very easy to make mistakes due to experience or visual inspection. If the response is not timely, the water pump cannot be shut down in time, and this kind of dry pumping and idling can easily cause the motor of the water pump to burn out. This problem cannot be ignored. This is the fourteenth problem.