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Novel photocatalysis filter tank device and water treatment system

A technology of photocatalysis and water distribution system, which is applied in the field of water treatment devices, can solve the problems of complex treatment devices, limited processing capacity, and low light utilization rate, and achieve the effects of simple maintenance, ingenious device design, and compact device layout

Inactive Publication Date: 2012-10-03
ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These configurations have some disadvantages, such as: low light utilization due to the absorption and scattering of light by the reaction medium; limited processing capacity due to mass transfer limitations, etc.
At present, a variety of solid-phase photocatalytic water treatment systems have been disclosed by the State Intellectual Property Office, such as the State Intellectual Property Office Publication No. Tubular photocatalytic oxidation water treatment reactor, publication number CN 101186380A discloses a photocatalytic aeration filter for water treatment, these reactors have realized the application of photocatalysis, but the processing device is complicated and the equipment cost is high

Method used

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  • Novel photocatalysis filter tank device and water treatment system
  • Novel photocatalysis filter tank device and water treatment system
  • Novel photocatalysis filter tank device and water treatment system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Sodium dodecylbenzenesulfonate (SDBS) solution with a concentration of 200mg / L was prepared with tap water, and degraded by a photocatalytic filter with a water temperature of 25-30°C and a hydraulic retention time of 120 minutes. The degradation rate of SDBS was 92.6%. After 200 hours of continuous operation, the performance of the photocatalytic filter did not decline.

Embodiment 2

[0031]A methyl orange solution with a concentration of 5mg / L was prepared with tap water and degraded with a photocatalytic filter, the water temperature was 25-30°C, and the hydraulic retention time was 120 minutes. The degradation rate of methyl orange is 93%. After 200 hours of continuous operation, the performance of the photocatalytic filter has not declined.

Embodiment 3

[0033] Prepare Escherichia coli with tap water to a concentration of 1.9×10 5 pcs / mL, 5.7×10 6 A / mL bacteria-containing water samples were sterilized with a photocatalytic filter, the water temperature was 25-30°C, and the hydraulic retention time was 20 minutes. The bacteria concentrations in the water samples after operation were 20 / mL and 38 / mL respectively, and the sterilization rate was 99.99%.

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Abstract

The invention discloses a novel photocatalysis filter tank device and a water treatment system. The filter tank device consists of a device outer wall, an ultraviolet lamp tube, a tower tray support column, a filter material and a filter material tower tray, wherein a transparent glass bead carrier is taken as the filter material, and waste water is treated by a nanometer TiO2 film with the capability of effectively degrading organic pollutants through photo-catalytic oxidation under the irradiation of ultraviolet light.. The water treatment system mainly comprises a filter bed, an illumination system, a water distribution system and a backflow system. The novel photocatalysis filter tank device organically combines the conventional biomembrane filtering tank with the advanced photocatalysis treatment process, is ingenious in design and compact in layout, allows a light source to be uniformly distributed in the filter material, has a good hydraulic power condition, can fully utilize light energy, does not need aeration, does not generate sludge and secondary pollution, is convenient to operate and simple to maintain, is high in water-quality purification efficiency and sterilization capability, and is mainly applied to the fields of reclaimed water reuse, deep sludge (waste) water treatment and the like.

Description

technical field [0001] The invention relates to a device for water treatment, in particular to a photocatalytic filter device and a water treatment system using glass beads loaded with titanium dioxide film as filter material. Background technique [0002] As a new type of sewage treatment technology, biofilter has the technical advantages of biofilm process and effective space filter function, and belongs to fixed bed biofilm reactor. A new type of granular packing is used in the reaction tank, and an aeration system is installed to provide enough oxygen. When the wastewater passes through the packing layer in the vertical direction, the biofilm attached to the packing uses the dissolved oxygen in the water to oxidize and decompose the pollutants and the packing The suspended solids in the wastewater are filtered and intercepted to jointly remove the pollutants in the wastewater, so as to achieve the purpose of wastewater treatment. However, the biofilter wastewater treatm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/32C02F1/72
Inventor 张宏忠王明花杨艳琴张华林郭梅娜康雪晶郝郗龙方少明赵继红
Owner ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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