Large-volume microwave photocatalysis waste water degradation device without emission of tail gas containing ozone

Abstract

The invention relates to a large-volume microwave photocatalysis waste water degradation device without emission of tail gas containing ozone, and belongs to the technical field of waste water treatment. In the prior art, problems that a catalyst intercepting link is weaker, the single-tank waste water treatment volume is smaller, the major cycle strength of internal liquid is insufficient, and the degradation reaction endpoint moment is difficult to distinguish exist. The invention aims to solve a series of the problems in a package. According to the device, a metal cage is erected near the periphery of a quartz tube with a built-in electrodeless ultraviolet lamp inside a reactor; microwaves are restrained in a limited airspace, so that the single-tank treatment volume is substantially increased; a megaphone-shaped component used for strengthening the liquid circulation is erected right under the metal cage; fine intercept for catalyst particulates is achieved through an external cascaded three-level back wash type filter; the materials of a filter cartridge of the device are not limited; an ozone sensor is arranged in the position of a tail gas exhaust port; and an output electric signal is transmitted to a power supply controller which is connected with a magnetron and an air pump.

Description

technical field [0001] The invention relates to a large-capacity microwave photocatalytic wastewater degradation device that does not discharge ozone-containing tail gas, 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 particles inside the liquid. The electrodeless ultraviolet lamp is covered and protec...

AI Technical Summary

Problems solved by technology

[0032] The operation of the wastewater catalytic degradation reactor needs to consume energy. Therefore, the operator will definitely hope that when the wastewater degradation reaction reaches the end, it can be impartial, neither too early nor too late to stop the continuous injection into the reactor. Energy; if the time to stop injecting energy is too early, the degradation of wastewater will not be complete; and if the end of the reaction has already been reached, but still continue to inject energy into the reactor, it is undoubtedly a waste of precious energy

The structure of CN102260003A scheme as the technical background of this case can not give any instant information to the end point of waste water degradation, so, just can only rely on experience to estimate the end point of waste water degradation reaction; And rely on experience to estimate the end point of waste water degradation reaction, then It is obviously unsatisfactory; then, how to make an immediate information output that is neither advanced nor delayed for the end point of the wastewater degradation reaction, and immediately shut down the energy input to the reactor at the right moment is a technical threshold that cannot be ignored , this is the seventh question

Images