Photocatalysis wastewater degradation reactor capacity expansion method capable of protecting magnetron from being corroded

Abstract

The invention relates to a photocatalysis wastewater degradation reactor capacity expansion method capable of protecting a magnetron from being corroded and belongs to the technical field of wastewater treatment. An existing related technology has the problems that a contact agent is lost, microwave energy is wasted, the processing amount of single-pot wastewater of a reactor is small, a degradation finished point is difficult to recognize, a contact agent agglomerate can not be dissipated in situ, the contact agent agglomeration can not be observed in time, the secondary ozone reverse fluid channeling corrosion magnetron and the like. The scheme aims at the series problems. The method comprises the main steps: closing up a microwave irradiation by a metal cage; expanding the size of the reactor; gradually intercepting the contact agent by utilizing a multi-grade filter; dissipating the contact agent agglomerate in situ by utilizing low-frequency ultrasonic waves sent from the bottom of the reactor, meanwhile, cleaning a quartz tube; monitoring a reaction progress by utilizing an ozone sensor and automatically controlling a related power supply switching mechanism by utilizing a sensing electric signal; carrying out self detection on an agglomerate main induction parameter; separating a waveguide pipe in an air-tight manner by utilizing a wave-transparent plate including the quartz tube and the like to avoid the zone reverse fluid channeling and prevent the magnetron from being corroded.

Description

technical field [0001] The invention relates to a method for expanding the capacity of a photocatalytic wastewater degradation reactor for maintaining a magnetron from corrosion, 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 protect...

AI Technical Summary

Problems solved by technology

[0046] Based on the structure of the CN102260003A scheme, during its operation, the air pumped into the quartz tube cavity will be irradiated by ultraviolet rays, part of which will be converted into ozone, and most of the ozone-containing air formed in this way will be sent to the micropore aeration by pressure However, we know that the structure of the magnetron itself is not vacuum-tight, and the connection between the waveguide and the magnetron is generally not vacuum-tight, so all the relatively positive pressure A small part of the above-mentioned ozone-containing air will inevitably flow into the structural area where the magnetron is located, and the structural component materials of the magnetron, including its shell material, generally do not have the ability to resist ozone corrosion. Then, such a In the future, the ozone-containing air that enters the magnetron structure area in the reverse direction will inevitably form a corrosion effect on the magnetron components. The power of this corrosion effect may be difficult to detect in a short period of time on the laboratory scale. However, it will definitely appear after a little longer time. , the problem of reverse flow of ozone-containing air and corrosion of magnetron components cannot be avoided, this is the fifteenth problem