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Flat-plate solar photocatalysis water purifier for collected rainwater and drinking water

A solar and flat-panel technology, applied in the direction of light water/sewage treatment, etc., can solve the problem of heavy metals, achieve the effects of avoiding frostbite, convenient sampling and monitoring of water quality, and good photocatalytic performance

Inactive Publication Date: 2012-10-17
LANZHOU JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

By analyzing the water quality of cellar water in different locations, the content of the tested substances in cellar water in remote mountainous areas and ordinary courtyards basically meets drinking water standards. And other parameters are obviously too large, and it may be due to the adsorption of suspended solids in water that the content of some heavy metals such as lead, chromium, etc., as well as total phosphorus and COD is too high, even far exceeding the national standard

Method used

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  • Flat-plate solar photocatalysis water purifier for collected rainwater and drinking water
  • Flat-plate solar photocatalysis water purifier for collected rainwater and drinking water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1 First, add ammonia water dropwise in distilled water to make the pH value 6; then add tetra-n-butyl titanate under magnetic stirring, stir until white precipitate is completely produced, and then add H with a mass concentration of 30% dropwise. 2 o 2 , and after stirring for 30 minutes, a uniformly mixed yellow peroxotitanic acid sol was obtained; secondly, the clean and dry geotextile was ultrasonically oscillated in the peroxotitanic acid sol, and after 5 minutes, it was sealed and heated to 30°C, and kept warm 6h; Finally, take out the geotextile, place it in a ventilated place for 3 days, and get TiO after repeated washing for 3 to 4 times. 2 / Geotextile supported photocatalyst.

[0033] Wherein the molar ratio of tetra-n-butyl phthalate, distilled water and hydrogen peroxide is 1:30:1.

Embodiment 2

[0034] Example 2 First, add ammonia water dropwise in distilled water to make the pH value 12; then add tetra-n-butyl titanate under magnetic stirring, stir until white precipitate is completely produced, and then add H with a mass concentration of 30% dropwise. 2 o 2 , and after stirring for 180 minutes, a uniformly mixed yellow peroxotitanic acid sol was obtained; secondly, the clean and dry geotextile was ultrasonically oscillated in the peroxotitanic acid sol, and after 30 minutes, it was sealed and heated to 95°C, and kept warm 36h; Finally, take out the geotextile, place it in a ventilated place for 7 days, and get TiO after repeated washing for 3-4 times. 2 / Geotextile supported photocatalyst.

[0035] Wherein the molar ratio of tetra-n-butyl phthalate, distilled water and hydrogen peroxide is 1:151:12.

Embodiment 3

[0036] Example 3 First, ammonia water was added dropwise in distilled water to make the pH value 9; then tetra-n-butyl titanate was added under magnetic stirring, and stirred until a white precipitate was completely formed, and then 30% H 2 o 2, and after stirring for 150 minutes, a uniformly mixed yellow peroxotitanic acid sol was obtained; secondly, the clean and dry geotextile was ultrasonically oscillated in the peroxotitanic acid sol, and after 20 minutes, it was sealed and heated to 65°C, and kept warm 21h; Finally, take out the geotextile, place it in a ventilated place for 5 days, and get TiO after repeated washing for 3 to 4 times. 2 / Geotextile supported photocatalyst.

[0037] Wherein the molar ratio of tetra-n-butyl phthalate, distilled water and hydrogen peroxide is 1:90:6.

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PUM

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Abstract

The invention relates to a flat-plate solar photocatalysis water purifier for collected rainwater and drinking water, which comprises a raw water tank, a water outlet tank and a reactor. The reactor is of a flat-plate structure. A reaction tank is arranged in the reactor. The bottom of the reactor is provided with a base. One side of the reactor is provided with a water inlet, and the other side of the reactor is provided with a water outlet. One surface of the reaction tank is provided with a light-transmitting panel. The back of the bottom of the reaction tank is provided with a hanger hole and a clamping position point. A plurality of deflection water passages which are arranged in a stagger mode and are formed by deflection baffles are arranged in the reaction tank. TiO2 / geotextile coated photocatalysts are arranged in the deflection water passages. The upper parts of the deflection water passages are communicated with the atmosphere and are provided with emptying diversion trenches. The raw water tank is connected with the water inlet. The water outlet tank is connected with the water outlet. The flat-plate solar photocatalysis water purifier for the collected rainwater and the drinking water has a simple structure and low cost, is simple to operate, is convenient to maintain and is suitable for treating door-to-door drinking water in rural areas and collected rainwater and micro-polluted water in northwest rural areas.

Description

technical field [0001] The invention relates to a water purifier, in particular to a flat solar photocatalytic rainwater collection drinking water purifier. Background technique [0002] Under the irradiation of ultraviolet light, TiO 2 The system can catalyze the oxidation of organic matter in water, reduce high-valence heavy metals and kill microorganisms in water. Due to its excellent photocatalytic performance, the research of titanium dioxide photocatalytic method for water treatment has attracted extensive attention of scholars at home and abroad. There have been many related studies at home and abroad, and many related patents have also been produced. But due to TiO 2 Photocatalysis can only occur by absorbing ultraviolet light with a wavelength of less than 387.5nm, and most of the patented products developed by researchers use artificial light sources as catalytic excitation light sources, which inevitably leads to the problem of high processing costs. [0003] N...

Claims

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Application Information

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IPC IPC(8): C02F1/30C02F1/32
Inventor 任学昌张国珍于学华武福平王雪娇马学琴
Owner LANZHOU JIAOTONG UNIV
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