CN102234154A - Control method of bromate - Google Patents
Control method of bromate Download PDFInfo
- Publication number
- CN102234154A CN102234154A CN2010101643927A CN201010164392A CN102234154A CN 102234154 A CN102234154 A CN 102234154A CN 2010101643927 A CN2010101643927 A CN 2010101643927A CN 201010164392 A CN201010164392 A CN 201010164392A CN 102234154 A CN102234154 A CN 102234154A
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- CN
- China
- Prior art keywords
- bromate
- amount
- concentration
- control method
- water treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
A bromate controlling technology which can be applied in practical water treatment factories. Before ozonization, a certain amount of H2O2 is added in advance with stirring for rapidly and uniformly mixing so as to form an O3/H2O2 advanced oxidation system, the amount of H2O2 is determined by the amount of O3 so as to let the mol ratio of H2O2 concentration and O3 concentration in original water be 1.5:1 at large. The method provided by the invention is convenient for addition, and is economical and beneficial without subsequent processing problems; in addition, the method can be utilized to control bromate and simultaneously raise the effect of removing organic matter during the water treatment process, and has a great application potential.
Description
Technical field
The present invention relates to bromate (BrO in the tap water ozonize process
3 -) a kind of control method, especially can be applied to the bromate control techniques of actual water treatment plant.
Background technology
Ozone (O
3) sterilize as the alternative method of chlorine disinfectant, in drinking water treatment, used more and more.But contain bromide anion (Br
-) the water-ozone process in the disinfection byproduct (DBP) bromate that forms, be decided to be 2B level potential carcinogen (limit value of bromate is 10ug/L in the drinking water standard both domestic and external) by international cancer research institution.At present, the control bromate can carry out from controlling its formation and generating two aspects of removal, back, the former mainly comprises methods such as reducing pH value, ammonification, O3 catalytic oxidation, and the latter then mainly comprises methods such as ultraviolet ray (UV) radiation, iron reduction, charcoal absorption reduction.Yet above the whole bag of tricks all has problems in being applied to the engineering practice process: reducing the pH value needs to consume a large amount of acid, uneconomical economically; Ammonification or iron need be considered follow-up handling problem; There is the stripping and the loss of catalyzer in O3 catalytic oxidation; UV radiation energy consumption is too high; And charcoal absorption also principle to consider microbial film problem of carbon surface or the like.
Summary of the invention
In order to overcome the many disadvantages of above method, serve better engineering practice, the invention provides a kind of control method of bromate, this method is by adding hydrogen peroxide (H in ozonation
2O
2), form O
3/ H
2O
2The advanced oxidation system, thus reach in the bromate generative process its purpose of controlling.Not only add conveniently, economical, do not have follow-up handling problem, and can in the control bromate, improve the organic matter removal effect in the water treatment procedure, have powerful application potential.
Embodiment
The technical scheme that patent of the present invention adopts is: before former water-ozone, add in advance a certain amount of H
2O
2, and make its quick mixing by stirring, utilize O
3/ H
2O
2The advanced oxidation system, thus in the bromate generative process, it is controlled.H
2O
2The throwing amount according to O
3The throwing amount determine, make generally the H in the former water
2O
2Concentration and O
3The mol ratio of concentration is 1.5: 1.Adopt this kind method, Dang Yuanshui [Br
-]=134ug/L, TOC=2.2mg/L, pH=8.1,20 ℃ of temperature, O
3During throwing amount 2mg/L, the bromate growing amount is 13.846ug/L; Add the H of 62.5uM
2O
2After, the bromate growing amount is 9.246ug/L, clearance is 33.22%, reaches the water standard requirement.Work as O
3Throwing amount 2.5mg/L, H
2O
2During throwing amount 78.1uM, bromate clearance 37.80%.Work as O
3Throwing amount 3mg/L, H
2O
2During throwing amount 93.8uM, bromate clearance 57.36%.Work as O
3Throwing amount 3.5mg/L, H
2O
2During throwing amount 109.4uM, bromate clearance 50.58%.Work as O
3Throwing amount 4mg/L, H
2O
2During throwing amount 125uM, bromate clearance 60.05%.
Claims (2)
1. the control method of a bromate can be controlled it in the bromate generative process, it is characterized in that: before former water-ozone, add in advance a certain amount of H
2O
2, and make its quick mixing by stirring, form O
3/ H
2O
2The advanced oxidation system.
2. control method of bromate according to claim 1 is characterized in that: H
2O
2The throwing amount according to O
3The throwing amount determine, make generally the H in the former water
2O
2Concentration and O
3The mol ratio of concentration is 1.5: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101643927A CN102234154A (en) | 2010-05-06 | 2010-05-06 | Control method of bromate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101643927A CN102234154A (en) | 2010-05-06 | 2010-05-06 | Control method of bromate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102234154A true CN102234154A (en) | 2011-11-09 |
Family
ID=44885338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101643927A Pending CN102234154A (en) | 2010-05-06 | 2010-05-06 | Control method of bromate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102234154A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104129872A (en) * | 2014-07-02 | 2014-11-05 | 清华大学 | Method for controlling generation amount of bromate during treatment process of drinking water |
| CN106745670A (en) * | 2016-12-09 | 2017-05-31 | 深圳市康源环境纳米科技有限公司 | The water purifying processing system and method for a kind of brominated mineral water |
| CN109231417A (en) * | 2018-09-20 | 2019-01-18 | 河海大学 | A method of the ozonisation disinfection of water is carried out using membrane contactor and bromination minimizes |
-
2010
- 2010-05-06 CN CN2010101643927A patent/CN102234154A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104129872A (en) * | 2014-07-02 | 2014-11-05 | 清华大学 | Method for controlling generation amount of bromate during treatment process of drinking water |
| CN104129872B (en) * | 2014-07-02 | 2016-02-24 | 清华大学 | The control method of bromate growing amount in drinking water treatment process |
| CN106745670A (en) * | 2016-12-09 | 2017-05-31 | 深圳市康源环境纳米科技有限公司 | The water purifying processing system and method for a kind of brominated mineral water |
| CN109231417A (en) * | 2018-09-20 | 2019-01-18 | 河海大学 | A method of the ozonisation disinfection of water is carried out using membrane contactor and bromination minimizes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Lv Miao Document name: Notification of Publication of the Application for Invention |
|
| DD01 | Delivery of document by public notice |
Addressee: Lv Miao Document name: Notification of before Expiration of Request of Examination as to Substance |
|
| DD01 | Delivery of document by public notice |
Addressee: Lv Miao Document name: Notification that Application Deemed to be Withdrawn |
|
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111109 |
|
| WD01 | Invention patent application deemed withdrawn after publication |