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Wastewater photocatalytic degradation reactor capacity expanding method carefully recovering catalyst particles

A technology for wastewater degradation and reactor, applied in chemical instruments and methods, light water/sewage treatment, oxidized water/sewage treatment, etc., can solve problems such as troublesome, unreliable, overflowing reactor, etc.

Inactive Publication Date: 2013-08-28
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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Examples

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Embodiment Construction

[0109] The main steps for the implementation of the method in this case are as follows:

[0110] 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 ...

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PUM

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Abstract

The invention relates to a wastewater photocatalytic degradation reactor capacity expanding method carefully recovering catalyst particles, and belongs to the technical field of wastewater treatment. Problems comprising catalyst loss, microwave energy waste, small single-pot wastewater throughput, insufficient internal liquid main-cycle strength, difficult distinguishing of the time of a degradation reaction end point, no in-situ strong dissipation of catalyst agglomerates, no instant detection of catalyst agglomeration and the like exist in the relevant prior art, and a scheme is provided against the problems. The scheme is characterized in that the method comprises the following steps: restraining the microwave irradiation range by a metal cage; bunching rising bubble flows through using a horn-shaped member; expanding the dimension of a reactor; intercepting a catalyst step by step by an external cascaded three-level backwashing filter; carrying out in-situ strong catalyst agglomerate dissipation and ultrasonic quartz tube cleaning; monitoring the reaction process by an ozone sensor, and automatically controlling relevant power supplies through using a sensing electric signal; and self-inspecting the main inducement parameters of the agglomeration.

Description

Technical field [0001] The invention relates to a method for expanding the capacity of a photocatalytic wastewater degradation reactor for carefully recovering catalyst particles, 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. ...

Claims

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Application Information

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IPC IPC(8): C02F9/08C02F1/30C02F1/32C02F1/44C02F1/78
Inventor 李榕生王冬杰孙杰干宁任元龙张佳斌葛从辛
Owner NINGBO UNIV
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