Reactor capacity expansion method for self-checking of the main cause of agglomeration parameters of wastewater photodegradation catalyst

Abstract

The invention relates to a reactor capacity-expanding method with a self-inspection function for a main agglomeration inducement parameter of a wastewater photodegradation catalyst and belongs to the technical field of wastewater treatment. The reactor capacity-expanding method aims at solving the problems of catalyst loss, microwave energy waste, low single-tank capacity, incomplete ozone utilization, difficultly-distinguished degradation reaction endpoint time, incapacity of powerfully dissipating catalyst agglomerates in situ, incapacity of detecting the occurrence of catalyst agglomeration in time, and the like, existing in the existing related technologies. The method adopting the scheme comprises the mainly steps of: restraining a microwave to enable the microwave to only irradiate a specified area; expanding the dimensions of a reactor; increasing the intensity of air supply for a key degradation reaction area; intercepting the catalyst by an external cascaded three-stage backwash-type filter stage by stage; powerfully dissipating the catalyst agglomerates in site by an ultrasonic wave from the bottom of the reactor, and incidentally cleaning a quartz tube simultaneously; monitoring the reaction progress by an ozone sensor, and automatically turning off the related power supply while arriving at a degradation endpoint; and actively performing self-inspection on the tendency of catalyst agglomeration.

Description

technical field [0001] The invention relates to a method for expanding the capacity of a reactor for self-checking the parameters of the main cause of agglomeration of a waste water photodegradation catalyst, 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 ultraviol...

AI Technical Summary

Problems solved by technology

As mentioned earlier, when some pH values ​​are not pre-adjusted in place and the pH value is inappropriate, titanium dioxide particles are prone to agglomeration, which will affect its effective working interface area and affect its photocatalytic performance; especially for the CN102260003A proposal. Those relatively small particle size sections in the applicable catalyst particle size range are more prone to agglomeration problems caused by improper pH value pre-adjustment and inappropriate pH value; for this kind of catalyst particle agglomeration , it is necessary to take effective measures immediately to carry out the deagglomeration operation for the agglomerates; based on the structure of the CN102260003A scheme, the operator cannot immediately detect the agglomeration inside the reactor, and thus cannot make immediate disposal, thus , the limited efficiency of the reactor which can only be a small-scale structure due to many factors will be further reduced; therefore, in the application and operation of the reactor, especially, for example, in the possible large reactor or giant reaction In the application and operation of reactors, how to instantly perceive the main parameters that cause catalyst particles to agglomerate inside the reactor is a key issue. This is the eleventh issue.