Photocatalytic wastewater degradation device with high-frequency ultrasonic-assisted separation membrane for removing attachments

Abstract

The invention relates to a photocatalytic wastewater degradation device with a high-frequency ultrasonic-assisted separation membrane for removing attachments and belongs to the technical field of wastewater treatment. The photocatalytic wastewater degradation device aims at solving the problems of microwave energy waste, low single-tank wastewater treatment capacity, difficultly-distinguished reaction endpoint time, incapacity of powerfully dissipating catalyst agglomerates in situ, incapacity of detecting the occurrence of catalyst agglomeration in time, difficulty in eliminating catalyst precipitates on a membrane module, and the like, existing in the existing related technologies. Via the structure of the photocatalytic wastewater degradation device, a microwave irradiation airspace is limited, and great capacity expansion for a reactor is allowed; a catalyst is intercepted by an external cascaded multi-stage backwash-type filter stage by stage; the catalyst agglomerates are dissipated by a low-frequency ultrasonic wave, and incidentally, a quartz tube is cleaned simultaneously; a related power supply is automatically and immediately turned off at a degradation endpoint; the tendency of catalyst agglomeration can be warned; and the running of the backwash procedure of a membrane module is assisted by a high-frequency ultrasonic wave.

Description

technical field [0001] The invention relates to a photocatalytic waste water degrading device with high-frequency ultrasonic-assisted separation membrane detachment, 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 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 quar...

AI Technical Summary

Problems solved by technology

[0046] 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.

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