Bipolar packed bed type three-dimensional electrode photo-electricity catalytic reactor

Abstract

The invention discloses a bipolar packed bed type three-dimensional electrode photo-electricity catalytic reactor. The catalytic reactor comprises a glass cylinder body, wherein a feeding chamber is arranged at the bottom of the glass cylinder body; a cover plate is arranged at the top part of the glass cylinder body; a tin foil reflective layer is coated outside the glass cylinder body; support grid plates are arranged in the cylinder body and above the feeding chamber; a central quartz jacket is positioned at the axle center of the cylinder body; the ultra-violet lamp is built-in; a cooling water inlet and a cooling water outlet are respectively formed in the top end of the quartz jacket; the cooling water is poured to control the temperature; TiO2 / Ti anode and graphite cathode are axially arranged in the cylinder body; photo-electricity particle electrodes and insulating particles are mixedly stacked in the cylinder body to form a particle electrode bed layer; the feeding chamber is arranged at the lower part of the reactor. The catalytic reactor has the advantages of reasonable structure, high light energy and electrical energy utilization ratio, good photo-electricity synergistic effect, and high photo-electricity catalytic oxidation efficiency.

Description

technical field [0001] The invention belongs to the technical field of advanced oxidation water treatment, and relates to a bipolar fixed-bed three-dimensional electrode photoelectric catalytic reactor and its use for treating organic waste water. Background technique [0002] Environmental protection and sustainable development are the main issues facing human beings in the 21st century, among which sewage treatment is one of the key contents of environmental protection. In recent years, advanced oxidation processes (Advanced Oxidation Processes, AOPs), especially photocatalytic oxidation and electrocatalytic oxidation technologies, have attracted more and more attention, and have become a research hotspot in new technologies for the treatment of toxic and harmful organic pollutants. [0003] Among many semiconductor photocatalytic materials, TiO 2 It is favored because of its stable chemical properties, cheap and easy to obtain, non-toxic and high catalytic efficiency. W...

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Problems solved by technology

[0008] Due to the late start of the research on photocatalytic oxidation technology based on three-dimensional electrodes, there are inevitably some defects: the structure of the three-dimensional electrode photocatalytic The particle electrodes are piled up around the light source, which hinders the transmission of light. Except that the inner layer can receive strong light source irradiation, the outer particle group is difficult to receive light source irradiation, and the utilization rate of light energy is low. The yield of electron-hole pairs Low and easy to compound, the photoelectric synergy effect is not high

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