Photocatalytic Wastewater Degradation Reactor Expansion Method for In-Situ Digestion of Catalyst Agglomerates

Abstract

The invention relates to a photocatalytic wastewater degradation reactor expansion method for in-situ counteraction of catalytic agglomerates, and belongs to the technical field of wastewater treatment. In the existing related technologies, the problems that a catalyst interception link is weak, the utilization of microwave energy is not ideal, the single-tank wastewater treatment capacity of a reactor is small, the major cyclic strength of internal liquid is insufficient, the ending time of degradation reaction is difficult to discern, and catalytic agglomerates can not be subjected to in-situ forced counteraction, and the like exist, and the method is designed for solving the problems. The method disclosed by the invention comprises the following main steps: drawing in the microwave irradiation range by using a metal cage; bunching and raising a bubble flow by using a megaphone-shaped component; expanding the size of a reactor; intercepting nano photocatalyst particles level by level by using an external cascaded three-level backwash filter; carrying out in-situ forced counteraction on catalyst agglomerates by using ultrasonic waves emitted from the bottom of the reactor, and simultaneously, cleaning a quartz tube; and monitoring a reaction process by using an ozone sensor, and automatically controlling related power switch mechanisms by using sensing electric signals.

Description

Technical field

[0001] The invention relates to a method for expanding the capacity of a photocatalytic wastewater degradation reactor for in-situ digestion of catalyst aggregates, 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 publication number CN102260003A uses microwave as the excitation source to excite the electrodeless ultraviolet lamp to emit ultraviolet rays, and irradiate the suspension liquid doped with photocatalyst titanium dioxide into the liquid. The electrodeless ultraviolet lamp is protected by a quartz tube. ...

Examples

Embodiment Construction

[0082] The main steps for the implementation of the method in this case are as follows:

[0083] a. Use a metal cage-shaped microwave restrainer to hide the electrodeless ultraviolet lamp in the quartz tube so that the electrodeless ultraviolet lamp is inside the cage-shaped microwave restraint, and the overall structural position of the cage-shaped microwave restraint It is also inside the quartz tube, which is a component used to isolate gas and liquid and play a shielding role. The quartz tube is located inside the reactor. The cage-shaped microwave confinement is a cage-shaped metal component. The cage-shaped microwave confinement device has holes or meshes all over its structure. The function of the cage-shaped microwave confinement device is to constrain the microwave irradiated airspace within it, so that the outer wall of the cage-shaped microwave confinement device and Construct weak microwave irradiation airspace or zero microwave irradiation airspace between the inner ...

Technical field

[0001] The invention relates to a method for expanding the capacity of a photocatalytic wastewater degradation reactor for in-situ digestion of catalyst aggregates, 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 publication number CN102260003A uses microwave as the excitation source to excite the electrodeless ultraviolet lamp to emit ultraviolet rays, and irradiate the suspension liquid doped with photocatalyst titanium dioxide into the liquid. The electrodeless ultraviolet lamp is protected by a quartz tube. ...

Examples

Embodiment Construction

[0082] The main steps for the implementation of the method in this case are as follows:

[0083] a. Use a metal cage-shaped microwave restrainer to hide the electrodeless ultraviolet lamp in the quartz tube so that the electrodeless ultraviolet lamp is inside the cage-shaped microwave restraint, and the overall structural position of the cage-shaped microwave restraint It is also inside the quartz tube, which is a component used to isolate gas and liquid and play a shielding role. The quartz tube is located inside the reactor. The cage-shaped microwave confinement is a cage-shaped metal component. The cage-shaped microwave confinement device has holes or meshes all over its structure. The function of the cage-shaped microwave confinement device is to constrain the microwave irradiated airspace within it, so that the outer wall of the cage-shaped microwave confinement device and Construct weak microwave irradiation airspace or zero microwave irradiation airspace between the inner ...