CN1973736A - Water purifying column of active carbon with supported Ag and photocatalytic TiO2 for household drinking water machine - Google Patents
Water purifying column of active carbon with supported Ag and photocatalytic TiO2 for household drinking water machine Download PDFInfo
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- CN1973736A CN1973736A CN 200610098293 CN200610098293A CN1973736A CN 1973736 A CN1973736 A CN 1973736A CN 200610098293 CN200610098293 CN 200610098293 CN 200610098293 A CN200610098293 A CN 200610098293A CN 1973736 A CN1973736 A CN 1973736A
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- purifying column
- water purifying
- water
- active carbon
- tio
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Abstract
The present invention provides one kind of water purifying column of active carbon with supported Ag and photocatalytic TiO2 for use in household drinking water machine, and belongs to the field of water purifying technology. After TiO2 is deposited on surface of granular active carbon through a liquid phase deposition process and Ag is applied to the catalyst surface through a photochemical process, the active carbon with the catalyst is filled into the water purifying column. The water purifying column includes granular active carbon with Ag doped TiO2 film, quartz tube with ultraviolet lamp in the middle part, fixed porous partition board in the upper part, movable porous partition board in the lower part, filter cloth sheets below each of the porous partition boards, water inlet, bottom sealing head, water outlet and plastic casing. It is simple in structure and low in cost, and produces secondary pollution during purifying water.
Description
Technical field:
The invention belongs to water purification treatment technology field, be specifically related to a kind of active carbon supported Ag TiO
2The water purifying column of photocatalysis household drinker.
Background technology:
At present, people mostly will directly drink behind the boiling tap water, boil the bacterium that can only kill in the water, are difficult to remove the organic matter and the heavy metal ion of dissolving in the water.Along with pollution of waterhead is on the rise, content of organics raises significantly in the running water, the long-term drinking harmful substance water that exceeds standard will produce serious harm to human beings'health, particularly adopt the running water of disinfection by chlorine, easily produce and have and three cause the material of (carcinogenic, aberration inducing, mutagenesis), even more serious to human body harm.
Traditional drink water purifying method is charcoal absorption and membrane filtration.But in use, along with the increase of harmful substance adsorbance on the active carbon, its adsorption capacity descends, and the effluent quality deterioration needs often to change, but the time of changing is difficult to grasp.For membrane filtration, suspension in the water and incrustation scale make film stop up easily, need often to clean.In addition, bacterium can be food and rapidly breeding jeopardizes the healthy of people with the organic matter attached to active carbon and filter membrane surface.Because TiO
2The photocatalysis drinking water is a kind of brand-new purification method, organic matter in the water can be resolved into CO
2And water, and make heavy metal ion reduction removal in the water, can not produce secondary pollution, but, be difficult to make processing back water quality to reach direct drinking standard because the content of organics in the running water is very low, and water time of staying in decontaminating column is shorter, and photocatalysis efficiency is low.
Summary of the invention:
The present invention is directed to problems of the prior art, a kind of active carbon supported Ag TiO is provided
2The water purifying column of photocatalysis household drinker.This water purifying column adopts at activated carbon surface depositing Ti O
2As photochemical catalyst, with the suction-operated and the TiO of active carbon
2Photocatalysis combines, and makes that organic matter is able to deep purifying in the running water.When running water process photocatalysis post, underwater micro-organic matter is by charcoal absorption and by enrichment.Under UV-irradiation, TiO
2Generation light induced electron-hole, surface is right, and photohole has strong oxidation, and light induced electron has strong reducing action.Organic matter by charcoal absorption diffuses to TiO
2The surface is CO by the photohole oxidation Decomposition
2And water.Heavy metal ion is at TiO
2The surface is reduced by light induced electron and is therefrom removed, and under ultraviolet light and photochemical catalyst acting in conjunction, thereby bacterium and harmful substance are killed and make running water reach degree capable of direct drinking in the water.
The objective of the invention is suction-operated and TiO with active carbon
2Photocatalysis combine, use it for and drink water purification, can directly drink after making deep purification for tap water.
Water purifying column provided by the present invention is a column structure, and the water purifying column composition is: be equipped with in the water purifying column to be coated with and mix silver-colored TiO
2The granular activated carbon 8 of film; the quartz ampoule 2 of dress uviol lamp 3 vertically is positioned at the water purifying column middle part; fixedly porous barrier 4 and movable porous barrier 9 respectively level be positioned at the top and the bottom of water purifying column; filter cloth 5 and filter cloth 10 lay respectively at the fixedly bottom of porous barrier 4 and movable porous barrier 9; the top that water inlet 1 is positioned at water purifying column links to each other with the detachable end socket 11 of water purifying column bottom; delivery port 6 is positioned at the top of water purifying column, and water purifying column is by plastic casing 7 sealings.
Active carbon supported Ag TiO used in the present invention
2Be to prepare in the following manner:
A, at (the NH of 0.1～0.3mol/L
4)
2TiF
6With 0.15～0.50mol/L H
3BO
3In the solution, regulating PH with ammoniacal liquor is 1.0～3.0, will immerse through washing dried granular active carbon, reacts 2～8h under 40～60 ℃ of conditions, takes out and has deposited TiO
2Carrier, the dry back of washing obtains activated carbon supported TiO at 300～600 ℃ of heat treatment 2h
2Photochemical catalyst.
B, the photochemical catalyst that makes more than the general place large beaker, add the AgNO of 0.02mol/L～0.08mol/L
3Solution is at stirring condition UV-irradiation, Ag
+Be reduced to the Ag atomic deposition at TiO
2The surface, the time is 5～15min, obtains active carbon supported Ag TiO
2Photochemical catalyst.TiO
2Mixing silver not only can strengthen sterilizing ability but also can improve photocatalysis efficiency.
The present invention is with the suction-operated and the TiO of active carbon
2Photocatalysis combine, can make that micro-content organism is decomposed into CO effectively in the running water
2And H
2O makes in the water heavy metal ion be reduced to metal and separates out from water, kills bacterium and other harmful microorganism in the water, the degree that running water is reached directly drink.Install easy, easy to operate, cheap, purification process can not produce new pollution, is a kind of high efficiency, low consumed direct drinking preparation method.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model.
Among the figure: 1. water inlet, 2. quartz ampoule, 3. uviol lamp (254nm), 4. fixing porous barrier, 5. filter cloth, 6. delivery port, 7. plastic casing 8. is coated with TiO
2The granular activated carbon of film, 9. movable porous barrier, 10. filter cloth, 11. detachable end sockets
The specific embodiment:
Come application of the present invention is further elaborated with embodiment below:
The decontaminating column diameter is 6cm, and length is 20cm, interior dress 8W uviol lamp, the activated carbon supported TiO of filling 120 grams
2Photochemical catalyst, TiO
2Load capacity be 2%, the flow of control water, under the photocatalysis condition, detect the change of water quality of water inlet and water outlet, content of organics characterizes with COD (chemical oxygen consumption (COC)) in the water, heavy metal ion is measured with atomic spectrophotometer, and bacterial population adopts colony counting method to detect in the water, is source water with Maanshan City's pipeline running water, measurement is carried out under catalyst absorption reaches capacity condition, and the result is as follows:
Embodiment 1.
The flow of water is 1600mL/h, and running water COD is 6.0mg/L, and bacterial population is 500/L, heavy metal ion Hg
2+, Ca
2+, Cr
2+Deng not detecting, COD is 0.8mg/L behind the light catalytic purifying, and bacterial population is zero.
Embodiment 2.
The flow of water is 1500mg/h, and water inlet COD is 6.5mg/L, and bacterial population is 450/L, and heavy metal ion does not detect, and water outlet COD is 1.0mg/L, and bacterial population is zero.
Embodiment 3.
The flow of water is 2000mg/h, and water inlet COD is 5.5mg/L, and bacterial population is 400/L, and heavy metal ion does not detect, and water outlet COD is 1.2mg/L behind the water purification, and bacterial population is zero.
Above result all reaches the level of direct drinking.
Claims (2)
1, active carbon supported Ag TiO
2The water purifying column of photocatalysis household drinker is characterized in that the water purifying column composition is: be equipped with in the water purifying column to be coated with and mix silver-colored TiO
2The granular activated carbon 8 of film; the quartz ampoule 2 of dress uviol lamp 3 vertically is positioned at the water purifying column middle part; fixedly porous barrier 4 and movable porous barrier 9 respectively level be positioned at the top and the bottom of water purifying column; filter cloth 5 and filter cloth 10 lay respectively at the fixedly bottom of porous barrier 4 and movable porous barrier 9; the top that water inlet 1 is positioned at water purifying column links to each other with the detachable end socket 11 of water purifying column bottom; delivery port 6 is positioned at the top of water purifying column, and water purifying column is by plastic casing 7 sealings.
2, active carbon supported Ag TiO according to claim 1
2The water purifying column of photocatalysis household drinker is characterized in that wherein said active carbon supported Ag TiO
2Prepare in the following manner:
A, at (the NH of 0.1～0.3mol/L
4)
2TiF
6With 0.15～0.50mol/L H
3BO
3In the solution, regulating PH with ammoniacal liquor is 1.0～3.0, will immerse through washing dried granular active carbon, reacts 2～8h under 40～60 ℃ of conditions, takes out and has deposited TiO
2Carrier, the dry back of washing obtains activated carbon supported TiO at 300～600 ℃ of heat treatment 2h
2Photochemical catalyst.
B, the photochemical catalyst that makes more than the general place large beaker, add the AgNO of 0.02mol/L～0.08mol/L
3Solution is at stirring condition UV-irradiation, Ag
+Be reduced to the Ag atomic deposition at TiO
2The surface, the time is 5～15min, obtains active carbon supported Ag TiO
2Photochemical catalyst.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610098293 CN1973736A (en) | 2006-12-11 | 2006-12-11 | Water purifying column of active carbon with supported Ag and photocatalytic TiO2 for household drinking water machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610098293 CN1973736A (en) | 2006-12-11 | 2006-12-11 | Water purifying column of active carbon with supported Ag and photocatalytic TiO2 for household drinking water machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1973736A true CN1973736A (en) | 2007-06-06 |
Family
ID=38124298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610098293 Pending CN1973736A (en) | 2006-12-11 | 2006-12-11 | Water purifying column of active carbon with supported Ag and photocatalytic TiO2 for household drinking water machine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817216A (en) * | 2015-04-16 | 2015-08-05 | 广西大学 | Field drinking water device |
| CN108311142A (en) * | 2017-12-26 | 2018-07-24 | 佛山科学技术学院 | A method of Ag modifying titanium dioxide nano particles are prepared based on titania nanotube |
| CN108435168A (en) * | 2018-04-23 | 2018-08-24 | 齐鲁工业大学 | One kind having visible absorption and efficient CO2The composite photo-catalyst and preparation method thereof of absorption and conversion performance |
| CN109160576A (en) * | 2018-09-10 | 2019-01-08 | 天津大学 | Water dispenser water purifying column |
| CN110668594A (en) * | 2019-11-06 | 2020-01-10 | 中国恩菲工程技术有限公司 | Sled dress formula water purification installation |
-
2006
- 2006-12-11 CN CN 200610098293 patent/CN1973736A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817216A (en) * | 2015-04-16 | 2015-08-05 | 广西大学 | Field drinking water device |
| CN108311142A (en) * | 2017-12-26 | 2018-07-24 | 佛山科学技术学院 | A method of Ag modifying titanium dioxide nano particles are prepared based on titania nanotube |
| CN108435168A (en) * | 2018-04-23 | 2018-08-24 | 齐鲁工业大学 | One kind having visible absorption and efficient CO2The composite photo-catalyst and preparation method thereof of absorption and conversion performance |
| CN108435168B (en) * | 2018-04-23 | 2021-04-13 | 齐鲁工业大学 | Visible light absorption and high-efficiency CO2Composite photocatalyst with adsorption and conversion performance and preparation method thereof |
| CN109160576A (en) * | 2018-09-10 | 2019-01-08 | 天津大学 | Water dispenser water purifying column |
| CN110668594A (en) * | 2019-11-06 | 2020-01-10 | 中国恩菲工程技术有限公司 | Sled dress formula water purification installation |
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Open date: 20070606 |