Circulating water treatment device and process using nanocrystalline titanium dioxide fiber photocatalysis reactor

A photocatalytic reactor, titanium dioxide technology, which is applied in the directions of oxidized water/sewage treatment, illumination water/sewage treatment, energy and wastewater treatment, etc., can solve the problems of inconvenient fiber assembly, large light transmission loss, and reduced water flow cross-sectional area, etc. Achieve the effect of avoiding fiber breakage and loss, smooth and slow rise of water flow, and increase of water flow area

Inactive Publication Date: 2011-04-06
NANJING UNIV OF SCI & TECH
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  • Abstract
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Problems solved by technology

[0006] The existing technology has not been able to completely and well solve the above problems, such as several types of titanium dioxide fiber photocatalytic reaction devices disclosed in patents CN. The problem of impacting fibers, especially at the water outlet, because the water outlet is directly set on the wall of the reactor, the cross-sectional area of ​​the water flow is suddenly reduced, and the water flow speed is sharply accelerated at the water outlet, which is very easy to carry the fiber out of the water outlet; the ultraviolet light irradiation adopts optical fiber The transmission

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  • Circulating water treatment device and process using nanocrystalline titanium dioxide fiber photocatalysis reactor
  • Circulating water treatment device and process using nanocrystalline titanium dioxide fiber photocatalysis reactor
  • Circulating water treatment device and process using nanocrystalline titanium dioxide fiber photocatalysis reactor

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with accompanying drawing.

[0020] combine figure 1 , the present invention utilizes the circulating water treatment device of nanocrystalline titanium dioxide fiber photocatalytic reactor, consists of nanocrystalline titanium dioxide fiber photocatalytic reactor 1, water storage tank 2, water pump 3, first valve 4, flowmeter 5, second valve 6 and The spray aerator head 7 forms a water circulation circuit; wherein, the water outlet of the water storage tank 2 is connected with the water inlet of the water pump 3, and the water outlet of the water pump 3 is divided into two paths, one of which is connected with the first valve 4, and the other is connected with the second valve 6 , the first valve 4 is connected to the water inlet of the flow meter 5, the water outlet of the flow meter 5 is connected to the water inlet of the nanocrystalline titanium dioxide fiber photocatalytic reactor 1, and the wate...

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Abstract

The invention discloses a circulating water treatment device and a circulating water treatment process using a nanocrystalline titanium dioxide fiber photocatalysis reactor, which are used for treating organic pollutant waste water. Compared with the prior art, the reactor is innovative and has remarkable advantages in the aspect of structural designs: through unique water intake expanding and decelerating, uniform current distribution and a surrounding ring overflow water outlet structure at the upper port of an inner barrel, relatively high water flow rate is ensured and fiber breaking and loss caused by over high water current flow speed are avoided; an ultraviolet lamp is arranged at the axle enter position of the reactor, so that ultraviolet light is utilized to the maximum extent; a photocatalysis reaction is considered fully and treated waste water is sprayed and filled with oxygen; the device has a simple structure and low manufacturing cost and is convenient to assemble; and the photocatalysis circulating water treatment process has high efficiency, low energy consumption and important practical value and can perform high-flow continuous water treatment.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, in particular to a circulating water treatment device and process using a nanocrystalline titanium dioxide fiber photocatalytic reactor. Background technique [0002] Semiconductor photocatalytic oxidation technology can generate strong oxidizing free radicals under ultraviolet light irradiation, quickly and non-selectively oxidize and decompose various toxic organic pollutants in water, and can quickly kill bacteria and viruses in water without causing secondary pollution. Pollution, simple operation, low energy consumption, very broad application prospects in the field of water treatment. [0003] Among many semiconductor photocatalysts, titanium dioxide has attracted much attention due to its high photocatalytic activity, non-toxicity and harmlessness. However, the traditional application forms of titanium dioxide are mainly nano-powders, films and supports, all of which have...

Claims

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Application Information

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IPC IPC(8): C02F1/32C02F1/72
CPCY02W10/37
Inventor 刘和义裴石光刘金强刘贵双万青陈炎沈蕾
Owner NANJING UNIV OF SCI & TECH
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