CN103663613A - Bromate treating method - Google Patents
Bromate treating method Download PDFInfo
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- CN103663613A CN103663613A CN201310644054.7A CN201310644054A CN103663613A CN 103663613 A CN103663613 A CN 103663613A CN 201310644054 A CN201310644054 A CN 201310644054A CN 103663613 A CN103663613 A CN 103663613A
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- bromate
- water
- titanium dioxide
- titanium oxide
- nano titanium
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Abstract
The invention discloses a bromate treating method, which is characterized in that: the method comprises: placing a nanometer titanium dioxide-supported catalytic sheet in a container or a treating pool contained with water to be treated, and standing for 4-6h, wherein the nanometer titanium dioxide-supported catalytic sheet is added according to 2-5m2 per cubic meter water. The nanometer titanium dioxide-supported catalytic sheet is formed by fixing titanium dioxide on a ceramic surface by a physical vitrifying manner, and has advantages of good physical contact effect, not easy release, and long-term and effective catalytic effect. The nanometer titanium dioxide-supported catalytic sheet, in a normal state, can generate chemical reaction with bromate in water, thereby removing bromate with advantages of small energy consumption, environmental protection and no pollution.
Description
Technical field
The present invention relates to drink water purifying technical field, relate in particular to a kind for the treatment of process of bromate in drinking water.
Background technology
Along with the raising of people's living standard, the popularity rate of tap water is more and more higher, on a lot of small towns, has all led to tap water.And in the treating processes of tap water, add some sterilizing agents on conventionally, usually contain residue.
Compared to tap water, some drinking water treatments are better a little, but remain disinfection byproduct (DBP), wherein in disinfection byproduct (DBP), especially take bromate as main.There is potentially dangerous to human body in bromate, belongs to potential secondary carcinogens, so the processing of bromate in disinfection byproduct (DBP) is just seemed to very important.
Publication number is CN 102795733A, the Chinese patent literature that open day is on November 28th, 2012 discloses a kind of method that reduces bromate in drinking water content, it is characterized in that, by following steps, undertaken: (1) passes into ozone, control concentration 0.1-0.5ppm, the time 1-45 minute of ozone in tap water; (2) UV-irradiation degraded bromate.
Publication number is CN 102020372A, the Chinese patent literature that open day is on April 20th, 2011 discloses a kind of ozone water-purifying treatment process that reduces and eliminate bromate, it is characterized in that: purification of water quality process is processed by preposition adsorption filtration, ozone sterilization decontamination cycle and rearmounted adsorption filtration forms.
Above-mentioned two pieces of patent documentations all carry out germicidal treatment as sterilant to water by ozone, can produce disinfection byproduct (DBP), organism in disinfection byproduct (DBP) further impels bromate ion to generate bromate, thereby when processing bromate, there is again new bromate to generate, cause vicious cycle, can not fundamentally to the bromate in water, process.
Summary of the invention
The present invention is in order to overcome the defect of above-mentioned prior art, a kind for the treatment of process of bromate is provided, the immobilized catalysis sheet of nano titanium oxide that the present invention adopts is that the mode that titanium dioxide bakes by physics is fixed on ceramic surface, its physical contact is effective, is difficult for departing from, and catalytic effect is permanently effective, under normal conditions just can with water in bromate generation chemical reaction, thereby remove bromate, not only energy consumption is little, and environment friendly and pollution-free.
The present invention is achieved through the following technical solutions:
A kind for the treatment of process of bromate, it is characterized in that: place the immobilized catalysis sheet of nano titanium oxide being loaded with in the container of pending water or treating pond, by the immobilized catalysis sheet of the nano titanium oxide that adds 2-5 square metres in the water of every cubic metre, standing 4-6 hours.
In standing process, stir 5-10 time each 5-10 second.
When stirring in standing process, with ultra violet lamp, irradiation time is 1-2 hour.
The immobilized catalysis sheet of nano titanium oxide of the present invention consists of ceramic body, glazed layer and nano titanium dioxide film surface layer from top to bottom successively, and glazed layer is attached on ceramic body surface, and nano titanium dioxide film surface layer bakes on glazed layer.
Titanium dioxide is a kind of white solid or pulverous intermediate oxide, can with acid, be decomposed and extracts or by titanium tetrachloride, decomposed and obtained, titanium dioxide stable in properties by rutile.
Beneficial effect of the present invention is mainly manifested in the following aspects:
One, the immobilized catalysis sheet of nano titanium oxide that the present invention adopts is that the mode that titanium dioxide bakes by physics is fixed on ceramic surface, titanium dioxide is a kind of white solid or pulverous intermediate oxide, can with acid, decompose and extract or by titanium tetrachloride, decompose and obtain, titanium dioxide stable in properties by rutile.The mode that employing bakes, its physical contact is effective, be difficult for departing from, have permanent mechanism, catalytic effect is permanently effective, because the bromate in water is a kind of unsettled material, under normal conditions the immobilized catalysis sheet of nano titanium oxide just can with water in bromate generation chemical reaction, thereby remove bromate, not only energy consumption is little, and environment friendly and pollution-free; " by the immobilized catalysis sheet of the nano titanium oxide that adds 2-5 square metres in the water of every cubic metre ", adopt this specific proportioning, can guarantee the abundant reaction of bromate, standing 4-6 hours, can make organism in water and disinfection byproduct (DBP) fully and the immobilized catalysis sheet of nano titanium oxide generation catalytic oxidation, thereby guarantee that bromate is by fully ionization, thereby make have the bromate structure of potential carcinogenic harm just not exist to human body, improve the quality of safe drinking water.The immobilized catalysis sheet of nano titanium oxide and bromate reaction equation:
Two, in standing process, stir 5-10 time, each 5-10 second, can make the immobilized catalysis sheet of bromate and nano titanium oxide fully mix and contact, improve reaction contact surface, thus raising reaction effect.
When three, stirring in standing process, with ultra violet lamp, irradiation time is 1-2 hour, can accelerate the speed of response of the immobilized catalysis sheet of bromate and nano titanium oxide, improves reaction efficiency.
Embodiment
Embodiment 1
A treatment process for bromate, is characterized in that: place the immobilized catalysis sheet of nano titanium oxide being loaded with in the container of pending water or treating pond, by the immobilized catalysis sheet of the nano titanium oxide that adds 2 square metres in the water of every cubic metre, standing 4 hours.
The present embodiment is the most basic embodiment, the immobilized catalysis sheet of nano titanium oxide that the present invention adopts is that the mode that titanium dioxide bakes by physics is fixed on ceramic surface, titanium dioxide is a kind of white solid or pulverous intermediate oxide, can with acid, decompose and extract or by titanium tetrachloride, decompose and obtain, titanium dioxide stable in properties by rutile.The mode that employing bakes, its physical contact is effective, be difficult for departing from, have permanent mechanism, catalytic effect is permanently effective, because the bromate in water is a kind of unsettled material, under normal conditions the immobilized catalysis sheet of nano titanium oxide just can with water in bromate generation chemical reaction, thereby remove bromate, not only energy consumption is little, and environment friendly and pollution-free; " by the immobilized catalysis sheet of the nano titanium oxide that adds 2 square metres in the water of every cubic metre ", adopt this specific proportioning, can guarantee the abundant reaction of bromate, standing 4 hours, can make organism in water and disinfection byproduct (DBP) fully and the immobilized catalysis sheet of nano titanium oxide generation chemical reaction, thereby guarantee that bromate is fully disposed, improve the quality of safe drinking water.
Embodiment 2
A treatment process for bromate, is characterized in that: place the immobilized catalysis sheet of nano titanium oxide being loaded with in the container of pending water or treating pond, by the immobilized catalysis sheet of the nano titanium oxide that adds 3 square metres in the water of every cubic metre, standing 5 hours.
In standing process, stir each 5 seconds 5 times.
The present embodiment is better embodiment, stirs 5 times in standing process, in each 5 seconds, can make the immobilized catalysis sheet of bromate and nano titanium oxide fully mix and contact, and improves reaction contact surface, thereby improves reaction effect.
Embodiment 3
A treatment process for bromate, is characterized in that: place the immobilized catalysis sheet of nano titanium oxide being loaded with in the container of pending water or treating pond, by the immobilized catalysis sheet of the nano titanium oxide that adds 5 square metres in the water of every cubic metre, standing 6 hours.
In standing process, stir each 10 seconds 10 times.
When stirring in standing process, with ultra violet lamp, irradiation time is 1-2 hour.
The present embodiment is preferred forms, when stirring in standing process, with ultra violet lamp, irradiation time is 1-2 hour, can accelerate the speed of response of the immobilized catalysis sheet of bromate and nano titanium oxide, improve reaction efficiency, thereby it is more thorough that bromate is decomposed.
The invention is not restricted to above-described embodiment, according to the description of above-described embodiment, those of ordinary skill in the art also can make some apparent changes to the present invention, but within these changes all should fall into the protection domain of the claims in the present invention.
Claims (3)
1. the treatment process of a bromate, it is characterized in that: place the immobilized catalysis sheet of nano titanium oxide being loaded with in the container of pending water or treating pond, by the immobilized catalysis sheet of the nano titanium oxide that adds 2-5 square metres in the water of every cubic metre, standing 4-6 hours.
2. the treatment process of a kind of bromate according to claim 1, is characterized in that: in standing process, stir 5-10 time each 5-10 second.
3. the treatment process of a kind of bromate according to claim 1 and 2, is characterized in that: when stirring in standing process, with ultra violet lamp, irradiation time is 1-2 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310644054.7A CN103663613A (en) | 2013-12-05 | 2013-12-05 | Bromate treating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310644054.7A CN103663613A (en) | 2013-12-05 | 2013-12-05 | Bromate treating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103663613A true CN103663613A (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310644054.7A Pending CN103663613A (en) | 2013-12-05 | 2013-12-05 | Bromate treating method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030040593A (en) * | 2001-11-15 | 2003-05-23 | 홍성수 | A equipment for the removal of bromate ion in the aquaculture seawater |
| CN102008949A (en) * | 2010-11-01 | 2011-04-13 | 浙江大学 | Preparation method of demercuration catalyst for non-metal-modified one-dimensionally structured titanium dioxide |
| CN102616916A (en) * | 2012-04-25 | 2012-08-01 | 南开大学 | Method for controlling formation quantity of bromate in ozone oxidized water treatment process by TiO2 |
-
2013
- 2013-12-05 CN CN201310644054.7A patent/CN103663613A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030040593A (en) * | 2001-11-15 | 2003-05-23 | 홍성수 | A equipment for the removal of bromate ion in the aquaculture seawater |
| CN102008949A (en) * | 2010-11-01 | 2011-04-13 | 浙江大学 | Preparation method of demercuration catalyst for non-metal-modified one-dimensionally structured titanium dioxide |
| CN102616916A (en) * | 2012-04-25 | 2012-08-01 | 南开大学 | Method for controlling formation quantity of bromate in ozone oxidized water treatment process by TiO2 |
Non-Patent Citations (2)
| Title |
|---|
| 朱荣淑等: "Pt改性二氧化钛光催化去除溴酸盐", 《哈尔滨工业大学学报》, vol. 45, no. 8, 31 August 2013 (2013-08-31) * |
| 祁鲁梁等: "《水处理药剂及材料实用手册》", 30 June 2006, article "固载", pages: 718-720 * |
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Application publication date: 20140326 |