Ultraviolet/titanium dioxide (UV/TiO2) reactor for disinfecting drinking water treated by activated carbon

A technology of titanium dioxide and activated carbon, applied in the direction of light water/sewage treatment, etc., can solve the problem of no application report in the design, and achieve the effect of avoiding the generation of disinfection by-products, considerable economic benefits, and strong practicability.

Inactive Publication Date: 2010-06-09
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] UV / TiO at home and abroad 2 The research on photocatalytic disinfection technology has just started, and it has been reported that it is limited to the inactivation of bacterial monomers (free bacteria) in water; in the field of drinking water, the research on photocatalytic disinfection of activated carbon effluent bacteria, especially carbon bacteria, has not been seen at home and abroad. According to the report, the UV / TiO 2 Photocatalytic disinfection reactor design has no application report

Method used

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  • Ultraviolet/titanium dioxide (UV/TiO2) reactor for disinfecting drinking water treated by activated carbon
  • Ultraviolet/titanium dioxide (UV/TiO2) reactor for disinfecting drinking water treated by activated carbon
  • Ultraviolet/titanium dioxide (UV/TiO2) reactor for disinfecting drinking water treated by activated carbon

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Effect test

Embodiment 1

[0027] A drinking water activated carbon process effluent ultraviolet titanium dioxide disinfection reactor, which consists of an outer casing 1, an inner casing 2, and TiO 2 The ring plate 3, the ultraviolet lamp 4, the water outlet pipe 5 and the water inlet pipe 7 are composed. The outer casing 1 is provided with an inner casing 2, and the two ends of the outer casing 1 and the outer wall of the inner casing 2 are sealed and fixed with a plexiglass plate and glass glue. , the gap between the outer casing 1 and the inner casing 2 is arranged longitudinally with 6 pieces of TiO 2 Ring plate 3, the distance between two adjacent TiO2 ring plates 3 is 2×TiO 2 Inner diameter of annular plate 3, TiO 2 The contact parts between the annular plate 3, the inner sleeve 2 and the outer sleeve 1 are sealed with glass glue. The ultraviolet lamp 4 is located in the inner casing 2, making full use of the irradiation range of ultraviolet rays, preventing ultraviolet rays from leaking out, ...

Embodiment 2

[0035] A drinking water activated carbon process effluent ultraviolet titanium dioxide disinfection reactor, which consists of an outer casing 1, an inner casing 2, and TiO 2The ring plate 3, the ultraviolet lamp 4, the water outlet pipe 5 and the water inlet pipe 7 are composed. The outer casing 1 is provided with an inner casing 2, and the two ends of the outer casing 1 and the outer wall of the inner casing 2 are sealed and fixed with a plexiglass plate and glass glue. , the gap between the outer casing 1 and the inner casing 2 is arranged longitudinally with 9 pieces of TiO 2 Annular plate 3, two adjacent TiO 2 Ring plate 3 spacing is 2.2×TiO 2 Inner diameter of annular plate 3, TiO 2 The contact parts between the annular plate 3, the inner sleeve 2 and the outer sleeve 1 are sealed with glass glue. The ultraviolet lamp 4 is located in the inner casing 2, making full use of the irradiation range of ultraviolet rays, preventing ultraviolet rays from leaking out, and conv...

Embodiment 3

[0043] A drinking water activated carbon process effluent ultraviolet titanium dioxide disinfection reactor, which consists of an outer casing 1, an inner casing 2, and TiO 2 The ring plate 3, the ultraviolet lamp 4, the water outlet pipe 5 and the water inlet pipe 7 are composed. The outer casing 1 is provided with an inner casing 2, and the two ends of the outer casing 1 and the outer wall of the inner casing 2 are sealed and fixed with a plexiglass plate and glass glue. , the gap between the outer casing 1 and the inner casing 2 is arranged longitudinally with 12 pieces of TiO 2 Annular plate 3, two adjacent TiO 2 Ring plate 3 spacing is 2.5×TiO 2 Inner diameter of annular plate 3, TiO 2 The contact parts between the annular plate 3, the inner sleeve 2 and the outer sleeve 1 are sealed with glass glue. The ultraviolet lamp 4 is located in the inner casing 2, making full use of the irradiation range of ultraviolet rays, preventing ultraviolet rays from leaking out, and co...

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Abstract

The invention provides an ultraviolet/titanium dioxide (UV/TiO2) reactor for disinfecting drinking water treated by the activated carbon, aiming at solving the problem on the biosafety of bacteria, particularly the carbon-adsorbed bacteria in drinking water treated by activated carbon. The UV/TiO2 reactor is an integrated UV/TiO2 reactor system which has the advantage of disinfecting by UV and the characteristic of catalyzing by TiO2 and is optimized and integrated with the process. The UV/TiO2 reactor can effectively inactivate the free bacteria and the carbon-adsorbed bacteria in the drinking water treated by the activated carbon, can ensure the disinfected drinking water to reach the sanitary standard for drinking water (GB5749-2006) and can bear the water supplying load change on some degree, thereby having wide application prospect.

Description

technical field [0001] The invention relates to an ultraviolet titanium dioxide photodisinfection reactor built after the water is discharged from the drinking water activated carbon treatment process. technical background [0002] Activated carbon advanced treatment technology for slightly polluted drinking water sources has been widely used in developed countries such as Europe, the United States and Japan, and has been applied in several water plants in my country. However, there are problems in the application of this technology that bacteria and particulate matter in the effluent will affect the biological safety of water quality, which has been highly valued internationally. Studies have shown that activated carbon becomes a microbial carrier in the process of water purification, and the concentration of nutrients and dissolved oxygen near the activated carbon particles is relatively high. The porous surface of activated carbon particles provides protection for microor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/32
Inventor 林涛陈卫王磊磊赵金辉
Owner HOHAI UNIV
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