A method for expanding the capacity of photocatalytic wastewater degradation reactor taking into account the Coulomb repulsion

Abstract

The invention relates to a method for expanding the volume of a photocatalysis wastewater degradation reactor taking a coulomb repulsion function into account, belonging to the technical field of wastewater treatment. An existing related technology has the problems that the microwave energy is wasted, the single-tank wastewater treating capacity is small, the oxygen supply concentration of a key area is insufficient, a catalyst flows away, the end time of a degradation reaction is difficult to distinguish, a catalyst agglomerate cannot be subjected to in situ strong dissipation, the agglomeration of the catalyst cannot be detected in time, the particulate charged characteristics of the catalyst are not put into good use, and the like. The method is provided for solving the series of problems, and mainly comprises the following steps of: restricting a microwave radiation airspace by using a metal cage to facilitate large-scale volume expansion of the reactor; releasing bubble flows to an important degradation reaction area in a concentrated mode; enhancing catalyst interception by using a negatively charged hollow fiber membrane; carrying out in situ strong dissipation on the catalyst agglomerate by using ultrasonic waves emitted from the bottom of the reactor, and cleaning a quartz tube at the same time; sensing the degradation end point by using an ozone sensor, and automatically turning off a power supply at the degradation end point; and automatically detecting the tendency of the agglomeration of the catalyst.

Description

technical field [0001] The invention relates to a method for expanding the capacity of a photocatalytic wastewater degradation reactor that takes into account Coulomb repulsion, 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 protecte...

AI Technical Summary

Problems solved by technology

[0048] This CN102260003A scheme does not make good use of the charging characteristics of photocatalyst particles, which is the fifteenth problem