High-capacity photocatalytic waste water degradation reactor intensively intercepting catalyst particles

Abstract

The invention relates to a high-capacity photocatalytic waste water degradation reactor intensively intercepting catalyst particles and belongs to the technical field of waste water treatment. The reactor aims at solving a series of problems that microwave energy is waste, single-tank waste water treatment capacity is low, a bubble rising path is short, oxygen supply concentration in a key area is insufficient, a catalyst particle interception link is weak, a degradation reaction endpoint is difficult to distinguish, a catalyst aggregator cannot be dissipated forcefully in situ, catalyst aggregation cannot be perceived immediately, preventive measures on water burst of a quartz cavity are insufficient, etc. in the prior art. According to the reactor, a metal cage restrains microwaves, and a structure of the reactor allows the reactor to be expanded greatly, strengthens oxygen supply in the key reaction area, intensively intercepts the catalyst particles, can forcefully dissipate the catalyst aggregator in situ, incidentally cleans a quartz tube ultrasonically, can immediately shut down a related power supply automatically when a degradation reaction reaches the endpoint, can detect main cause parameters of the catalyst aggregation, etc.

Description

technical field [0001] The invention relates to a large-capacity reactor for photocatalytic waste water degradation that finely intercepts catalyst particles, 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 ultraviolet lamp is shrouded and protected by a quartz tube...

AI Technical Summary

Problems solved by technology

[0046] Based on the structure of the CN102260003A scheme, the electrodeless ultraviolet lamp is placed in the lumen of the quartz tube. In order to ensure the normal luminous work of the electrodeless ultraviolet lamp, the inner wall of the quartz tube must be kept clean to maintain the permeability to ultraviolet light. Moreover, based on similar light permeability requirements, the outer side of the lamp wall of the electrodeless ultraviolet lamp involved must also be kept clean; however, the structure of the CN102260003A scheme is difficult to avoid the problem of water inrush in the lumen area of ​​the quartz tube The so-called water inrush in this case refers to the unwelcome water in the reactor protruding into the lumen area of ​​the quartz tube; there are generally two reasons for the water inrush: one is the quartz tube The thermal expansion and contraction of the air in the cavity area leads to underpressure in the lumen area of ​​the quartz tube, and the second is that the air in the lumen area of ​​the quartz tube escapes and causes underpressure in the lumen area of ​​the quartz tube. In this way, driven by the relative positive pressure of the surrounding water body, The water in the rea...

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