Low-pressure catalytic oxidation reactor

Abstract

The invention discloses a low-pressure catalytic oxidation reactor which comprises a reactor barrel. A light reflection flow guide barrel is arranged in the reactor barrel, a filler zone is arranged between the light reflection flow guide barrel and the reactor barrel, a water inlet pipe and a gas inlet pipe penetrate the portion, which is positioned on the lower portion of the reactor barrel, ofthe filler zone and are provided with water distributors and aerators, and the water distributors and the aerators are arranged at an opening in the bottom of the light reflection flow guide barrel. The low-pressure catalytic oxidation reactor has the advantages that wastewater and ozone can be directly fed into the light reflection flow guide barrel, the low-pressure wastewater can be fed into the light reflection flow guide barrel in a jet flow manner to be circulated in the light reflection flow guide barrel in a rotational flow manner, and can be sufficiently fused with the ozone, a drainpipe is arranged on the upper portion of the reactor barrel, the wastewater can flow out from the light reflection flow guide barrel, then sufficient reaction can be carried out on the wastewater andthe filler zone, and the wastewater can be ultimately drained from the drain pipe; the light reflection flow guide barrel is divided into a plurality of longitudinal oxidation zones by titanium dioxide catalysis plates, an ultraviolet lamp pole is arranged in the center of each oxidation zone, the catalysis plates are completely positioned in irradiation distances of ultraviolet light, the ultraviolet light can be reflected by the light reflection flow guide barrel, accordingly, illumination can be intensified, and the photocatalytic efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a low-pressure catalytic oxidation reactor. Background technique [0002] Semiconductor heterogeneous photocatalysis is a wastewater purification technology that has received increasing attention in recent years. There are mainly two types of catalysts: suspension type and supported type. China's authorized announcement number is CN1125782C, which discloses a suspension photocatalytic oxidation water treatment method and device. The method is to mix porous structure, powdery photocatalyst particles with water to be treated to form a suspension catalyst mixture; send the mixture to into the reactor and forced circulation of the mixture. There are two parts in the reactor: a lamp area and a membrane area. There are multiple ultraviolet light sources in the lamp area, and a membrane separation device is installed in the membrane area. The light generated by the ultrav...

AI Technical Summary

Problems solved by technology

The reactor can easily and quickly treat small flow of sewage, and the TiO on the inner wall of the reactor 2 As a photocatalytic oxidant, the coating uses ultraviolet light to degrade refractory organic pollutants in sewage. Its catalyst is loaded on a fixed carrier, which can solve the problem of separation of catalyst and wastewater, but there are uneven distribution of catalyst and small specific surface area of ​​catalyst. , low catalytic activity and other issues, greatly reducing the catalytic performance of the catalyst

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