Photocatalytic wastewater degradation reactor capable of actively preventing water inrush of quartz cavity

Abstract

The invention relates to a photocatalytic wastewater degradation reactor capable of actively preventing the water inrush of a quartz cavity, which belongs to the technical field of wastewater treatment. The technical scheme aims at solving the problems of the water inrush of the cavity of a quartz tube for shielding an electrodeless lamp, the loss of nano-photocatalyst, the energy waste of a microwave, the low single-tank wastewater treatment amount of a reactor, the difficultly-distinguished endpoint time of degradation reaction, incapacity of powerfully dissipating catalyst aggregates, incapacity of immediately detecting the occurrence of catalyst aggregation, the corrosion on a magnetron due to the reverse flow of secondary ozone, and the like in the existing related technologies,. According to the scheme, a micro diaphragm pump capable of running in a normal state with low power consumption is connected to a connection gas tube between an air pump and the tube cavity of the quartz tube by means of bypass, the micro diaphragm pump can be used for providing continuous low-flow-rate air supplementation for the tube cavity of the quartz tube, so as to prevent the water inrush of the tube cavity of the quartz cavity; the microwave is restrained by a metal cage, so as to realize large-amplitude expansion for the reactor; the other problems are also solved in the scheme.

Description

technical field [0001] The invention relates to a photocatalytic wastewater degradation reactor for actively preventing water inrush in a quartz cavity, belonging 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 protected by a quartz tube. An air...

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Problems solved by technology

[0048] 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 react...

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