Loaded nanometer tio2 photocatalytic turntable water treatment device and treatment method

Abstract

The invention provides a supported nano TiO2 photocatalytic rotary plate water treatment device and a treatment method. The device comprises a reaction tank, rotary plates, a light source and a reaction cover. The rotary plates are installed in the reaction tank through a rotary shaft. One end of the rotary shaft is connected with a motor. The reaction tank is covered with the reaction cover. The light source is installed on the reaction cover. The number of the rotary plates is at least two. Grooves are formed in the rotary plates. Transparent glass pieces are installed in the corresponding grooves of the two opposite rotary plates. The two sides of each rotary plate and the surfaces of the glass pieces are supported by nano TiO2. The reaction cover is a non-transparent cover. The rotary shaft of the device drives the rotary plates to rotate through power of a speed adjuster motor. The rotary plates are covered with waste water to form thin liquid film through rotation. Due to combined action of TiO2 supported on the surface of the rotary plates of the device and sunshine or ultraviolet light, TiO2 materials on the surfaces of the rotary plates react with organic matter in the waste water, and the aim of removing the organic matter in the waste water is achieved.

Description

technical field [0001] The invention relates to a device for treating waste water, and also relates to a method for treating waste water. More specifically, a supported nano-TiO 2 A device and method for treating waste water with a photocatalytic turntable. Background technique [0002] Since the Japanese scholars Fujishima and Honda in 1972 in N-type semiconductor titanium dioxide (TiO 2 ) after the photocatalytic decomposition of water was discovered on single crystal electrodes, it immediately attracted widespread attention from the academic community and started a new era of research on heterogeneous photocatalytic technology. In heterogeneous photocatalytic technology, due to TiO 2 It has stable chemical properties, good acid and alkali resistance, non-toxicity, abundant sources, low cost, and high catalytic efficiency. 2 It has become a photocatalyst with the most potential application in dealing with various environmental problems. [0003] With the continuous de...

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Problems solved by technology

[0005] 1. The disk catalyst utilization rate of the turntable of the current device is low, which usually can only use the titanium dioxide loaded on one side of the carrier, and the coverage area of ​​the titanium dioxide is small;

[0006] 2. The light transmittance of the turntable material of the current device is poor, which is not conducive to the improvement of the mass transfer efficiency of ultraviolet light in water;

[0007] 3. Commonly used photocatalytic reactors use powder catalysts, which makes it difficult to separate and recover the photocatalysts in the treated solution from the water body, easily causing secondary pollution of the water body

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