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Water treatment photocatalytic reaction device

A photocatalytic reaction and water treatment technology, applied in the direction of light water/sewage treatment, etc., can solve the problems of difficult single batch experiment, low light energy utilization efficiency, in the initial stage, etc., to achieve temperature controllable, stable evaluation index, The effect of avoiding distractions

Inactive Publication Date: 2016-06-08
范晨宇
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the existing suspension reactors can only process one or two samples at a time, and most of these photocatalytic reactors have low light energy utilization efficiency and are difficult to conduct batch experiments in a single batch in laboratory research and engineering applications. , device complex shortcomings, and through the design and development of water treatment photocatalytic reaction device can effectively avoid these problems, has a good application prospect
At the same time, the development of photocatalytic reaction devices for water treatment is still in its infancy.

Method used

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Experimental program
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Embodiment 1

[0029] In this embodiment, the experimental materials are a perfluorooctane sulfonate (PFOS) aqueous solution with an initial concentration of 100 μg / L and a homemade strontium-doped bismuth titanate visible light catalyst. Nine 100ml polypropylene plastic beakers were each loaded with 80ml of PFOS aqueous solution and 0.1g of strontium-doped bismuth titanate visible light catalyst, and magnetic stirring was used to uniformly mix the catalyst and the reaction solution, and the temperature of the reaction solution was kept at (20 ± 2 ) degrees, the xenon lamp intensity is 1000W. After 3 hours of reaction, the degradation rate of PFOS reached 70%, and the standard deviation of the degradation rate of pollutants in each beaker was 2.8%. This shows that the parallel sample analysis effect is ideal, and the device can provide good parallel sample analysis conditions.

Embodiment 2

[0031] The photocatalytic performance of different photocatalysts was evaluated by reliable parallel sample analysis results. Using PFOS aqueous solution with an initial concentration of 100 μg / L, 9 kinds (titanium, vanadium, manganese, iron, chromium, tungsten, nickel, antimony, strontium) doped bismuth titanate visible light catalysts were self-made. Nine 100ml polypropylene plastic beakers were each loaded with 80ml of PFOS aqueous solution and 0.1g of different kinds of doped bismuth titanate visible light catalysts, and magnetic stirring made the catalyst and the reaction solution evenly mixed, and the temperature of the reaction solution was maintained at (20 ± 2) degrees, the xenon lamp intensity is 1000W. After 3 hours of reaction, the degradation rates of PFOS were 0%, 80%, 0%, 5%, 0%, 5%, 10%, 5%, 65%. It can be seen that the multi-point photocatalytic reaction research device can evaluate the photocatalytic performance of various photocatalysts at a time, with high...

Embodiment 3

[0033] Use bismuth titanate visible light catalyst to degrade dye crystal violet and pentachlorophenol, respectively fill 80ml of 1mg / L dye crystal violet and pentachlorophenol solution in 2 100ml glass beakers, add 0.1g of each beaker Bismuth titanate visible light catalyst, magnetic stirring to uniformly mix the catalyst and the reaction solution, the temperature of the reaction solution is kept at (20±2)°C by a water bath, and the intensity of the xenon lamp is 1000W. After 3 hours of reaction, the degradation rates of the dye and pentachlorophenol reached 90% and 84% respectively.

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Abstract

The invention provides a water treatment photocatalytic reaction device. The device comprises a light shielding shell, a xenon lamp light source, a light filtering baffle plate, a fixed plate, reaction beakers and heat dissipation ventilation fans, a magnetic stirrer, a cooling water circulating pump and a red metal and rubber pipeline. The invention is mainly used for photocatalyst performance evaluation and kinetics study of photocatalytic degradation of organic pollutants. The invention provides a water treatment photocatalytic reaction device able to carry out batch photocatalytic reaction study, and the device has the advantages of simple technological structure, low energy consumption and high efficiency.

Description

technical field [0001] The invention relates to a photocatalytic reaction device for water treatment, which is mainly used for photocatalyst performance evaluation and research on degrading organic pollutants. Background technique [0002] Environmental pollution poses a serious threat to human survival and development, especially water pollution has become one of the focus of attention. With the rapid development of economy and industrialization, there are more and more types of refractory toxic organic pollutants discharged into water bodies, and their components are becoming more and more complex. Although a large number of sewage treatment equipment have been applied to the treatment of water pollution and have achieved certain treatment effects, with the increase in the amount of sewage and the increase in the types of refractory toxic organic pollutants, conventional sewage treatment technologies including physical methods (adsorption, ultrafiltration), chemical metho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/30
Inventor 范晨宇
Owner 范晨宇
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