A photocatalytic device based on nano-magnetic titanium dioxide catalyst

A titanium dioxide and nano-magnetic technology, applied in the field of water treatment, can solve problems such as the toxicity of nano-level titanium dioxide, the difficulty of effectively ensuring the quality of effluent water, and the difficulty of recycling, etc., and achieve the effects of easy and efficient separation, good promotion and application prospects, and flexible operation

Active Publication Date: 2016-08-03
HOHAI UNIV
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Problems solved by technology

However, it is difficult to recycle in practical engineering applications, and it is difficult to effectively guarantee the quality of effluent water. Moreover, the toxicity of nano-scale titanium dioxide is also the focus of attention recently.

Method used

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  • A photocatalytic device based on nano-magnetic titanium dioxide catalyst
  • A photocatalytic device based on nano-magnetic titanium dioxide catalyst
  • A photocatalytic device based on nano-magnetic titanium dioxide catalyst

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Embodiment Construction

[0026] The photocatalytic device based on the nano-magnetic titanium dioxide catalyst of the present invention will be further described below in conjunction with the accompanying drawings.

[0027] The photocatalytic device based on the nanometer magnetic titanium dioxide catalyst comprises a main body 1, a water inlet unit 2, a nanometer magnetic titanium dioxide catalytic oxidation unit 3, a separation unit 4 and a water outlet unit 5.

[0028] The water inlet unit 2 is arranged above the main body 1 , and the water inlet unit includes a water inlet pipe 21 and a titanium dioxide replenishment port 22 , an iron powder replenishment port 23 and a carbon powder replenishment port 24 communicating with the water inlet pipe 21 .

[0029] The nano-magnetic titanium dioxide catalytic oxidation unit 3 is located in the middle of the main body 1, adopts the form of complete mixing, and is equipped with an aeration stirring device 31; the aeration stirring device 31 is a perforated a...

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Abstract

The invention provides a photocatalysis device based on a nano-grade magnetic titanium dioxide catalyst. The device comprises a main body, a water inlet unit, a nano-grade magnetic titanium dioxide catalytic oxidation unit, a separation unit, and a water outlet unit. The water inlet unit is arranged in the upper part of the main body. The water inlet unit comprises a water inlet pipe and a titanium replenishing port, an iron powder replenishing port and a carbon powder replenishing powder communicating with the water inlet pipe. The nano-grade magnetic titanium dioxide catalytic oxidation unit is arranged at the middle of the main body, and adopts a complete mixing mode. The nano-grade magnetic titanium dioxide catalytic oxidation unit is provided with an air agitation device. The separation unit is arranged in a lower part of the main body, and comprises a separation device, a filtering membrane arranged on the separation device and a pulse air purge device arranged below the filtering membrane. The water outlet unit is directly connected with the separation unit. The novel photocatalysis device has the characteristics of compact structure, convenient application, small land occupation, good treatment effect, and the like. The device has good popularization and utilization prospects.

Description

technical field [0001] The invention belongs to the field of water treatment, in particular to a photocatalytic device and method based on a nanometer magnetic titanium dioxide catalyst. Background technique [0002] The quality of China's water environment is poor, with organic pollution as the main pollution feature. A lot of research has been done on the removal of organic pollution in water, including adsorption, biodegradation, and oxidation. Among them, the photocatalytic oxidation method with advanced oxidation as the main action principle has attracted widespread attention. [0003] As far as the photocatalytic oxidation method is concerned, the type and nature of the catalyst are the key factors affecting its treatment performance. Titanium dioxide is currently the most commonly used catalyst, and its particle size and crystal form directly affect the treatment effect. Nanoscale and anatase titanium dioxide is currently one of the most effective photocatalysts. H...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/72C02F1/32B01J23/745
CPCB01J23/745C02F1/32C02F1/44C02F1/725
Inventor 刘成朱丽飞陈卫何思源
Owner HOHAI UNIV
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