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.