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Green light energy water-cleaning method and its equipment

A light-energy and green technology, applied in illumination water/sewage treatment, oxidized water/sewage treatment, etc., can solve problems such as cost increase, secondary pollution, dissatisfaction, etc., and achieve low cost, high water purification efficiency, and good cleanliness. water effect effect

Inactive Publication Date: 2003-04-23
RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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Problems solved by technology

Because these treatment methods are not thorough enough, in order to improve the indicators of sewage treatment, it is necessary to repeat hot alkali treatment, biological treatment and ozone treatment, which increases the cost, but the effect is still unsatisfactory
Moreover, the existing sewage treatment methods are likely to cause secondary pollution, which does not meet the ideal of "green" environmental protection advocated by modern society.

Method used

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  • Green light energy water-cleaning method and its equipment
  • Green light energy water-cleaning method and its equipment

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Embodiment Construction

[0011] In one embodiment of the present invention, the green light energy water purification device includes a liquid storage tank and a filter for primary treatment, a liquid purification tank for secondary treatment, and a photocatalytic oxidation device for tertiary treatment . The primary treatment, secondary treatment and tertiary treatment devices are sequentially connected through conduits.

[0012] In the primary treatment, the filter is mainly composed of multi-layer superabsorbent stainless steel fiber sintered felt and porous active material, which has the function of COD, BOD 5 The characteristics of high processing efficiency.

[0013] In the secondary treatment, the net liquid tank is mainly used to treat COD and BOD through chemical agent method or biochemical method 5 High concentration wastewater.

[0014] In the three-stage treatment photocatalytic oxidation device, the method of combined ozone-photocatalysis treatment is adopted, which has a synergistic e...

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Abstract

The present invention provides a green sewage cleaning method by using light energy, and is characterized by that it makes the pretreated sewage undergo the process of photocatalytic oxidation treatment, makes the sewage flow through the nano photocatalyst surface under the condition of light irradiation to make it produce photocatalytic oxidation reaction so as to make harmful particles be reduced. Said invention also provides its photocatalytic oxidation equipment for implementing said invented method, it includes sewage inlet, treatment tank and sewage outlet, in which the treatment tank interior equipped with a light source and transparent material with nano photocatalyst.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to a sewage treatment method and a device thereof. Background technique [0002] With the improvement of people's living standards and the strengthening of environmental protection awareness, the research and implementation of sewage treatment are constantly deepening and developing. The existing sewage treatment methods generally include physical filtration method, chemical agent method, biochemical method, chemical-oxidation method and so on. For example, the sewage treatment method disclosed in the Chinese invention patent application with the publication number 1120833 and titled "Sewage Treatment Method Containing Organic Compounds and Inorganic Compounds" includes the process of separating suspended solids by chemical reaction and / or mechanical separation; Alkali treatment process; biological treatment process and ozone treatment process. Because these treatment metho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/30C02F1/72
Inventor 陈建军李荣先
Owner RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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