CN101817577A - Method for removing Microcystin-LR in water body by using bromides - Google Patents
Method for removing Microcystin-LR in water body by using bromides Download PDFInfo
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- CN101817577A CN101817577A CN 201010151393 CN201010151393A CN101817577A CN 101817577 A CN101817577 A CN 101817577A CN 201010151393 CN201010151393 CN 201010151393 CN 201010151393 A CN201010151393 A CN 201010151393A CN 101817577 A CN101817577 A CN 101817577A
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- microcystin
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- dibromo
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Abstract
The invention relates to a method for removing Microcystin-LR in water body by using bromides, which is characterized by comprising the following steps: preparing a 1,3-Dibromo-5,5-dimethylhydantoin solution with the concentration of 100-10000 mg/L, and spraying the 1,3-Dibromo-5,5-dimethylhydantoin solution to a Microcystin-LR polluted water area by using a spraying machine, wherein the spray amount of the 1,3-Dibromo-5,5-dimethylhydantoin solution is 100-300 ml/m<2>; and 1-60 minutes after spraying the 1,3-Dibromo-5,5-dimethylhydantoin solution to the water area, the content of effective bromine in the water area is 0.1-100 mg/L. The invention has strong effect on removing the Microcystin-LR by utilizing the reaction activity of 1,3-Dibromo-5,5-dimethylhydantoin, and can not produce secondary pollution, or teratogenetic, cancerigenic and mutagenic products. The method has the advantages of high removal rate, high toxicological safety, low investment and strong operability, and can be used for removing the Microcystin-LR in the water body.
Description
Technical field
The present invention relates to a kind of bromide and remove the method for Microcystin in the water body, belong to water-treatment technology field.
Background technology
The water environment pollution of China is day by day serious, owing to be subjected to entering of many industrial wastewaters and sanitary sewage, a large amount of chemical fertilizer that use in the agricultural production throughout the year, extensive purse seine ponding carries out multiple cultivation, water body self-purification ability is descended, and body eutrophication is serious, has greatly promoted the growth and breeding of algae.The amount reproduction of the algae and water of eutrophication finally causes the outburst of wawter bloom, has brought serious harm for the ecological water system; The water quality dirt is smelly, and transparency descends, and most worryingly, can produce the very strong Microcystin of toxicity after some algae death, is having a strong impact on the people's health.So we need urgent solving when blue-green algae pollutes, and solve the algae toxin to the people's harm.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, the method that provides a kind of bromide to remove Microcystin in the water body is strong to the removal effect of Microcystin.
According to technical scheme provided by the invention, described bromide is removed the method for Microcystin in the water body, may further comprise the steps:
C5H6Br2N2O2 is mixed with the C5H6Br2N2O2 solution that concentration is 100～10000mg/L, adopts spraying machine with the waters of C5H6Br2N2O2 spray solution to Pollution of Microcystin, the sprinkling amount of C5H6Br2N2O2 solution is 100～300ml/m
2
Described C5H6Br2N2O2 spray solution is to the 1～60min of waters, and the content of effective bromine is 0.1～100mg/L in the waters.
C5H6Br2N2O2 chemical name of the present invention is DBDMH, and be called for short: DBDMH, molecular formula is C
5H
6O
2N
2Br
2C5H6Br2N2O2 is light yellow crystalline powder, be slightly soluble in water, be dissolved in chloroform, the organic solvents such as ethanol, stable when dry, easily decompose in strong acid or highly basic, can further be processed into particle and tablet, its sterilization optimal pH is 5-7, at short notice biodegradation of residue after the sterilization does not have any pollution to environment.C5H6Br2N2O2 can constantly discharge the Br-ion in water, form hypobromous acid (HOBr), and the intravital biological enzyme oxygenolysis of biology was lost efficacy, and plays sterilization effect.Reaction equation is: C
5H
6N
2O
2Br
2+ 2H
2O → C
5H
8N
2O
2+ 2HOBr.
Advantage of the present invention is:
1, utilize the reactive behavior of C5H6Br2N2O2, strong to the removal effect of Microcystin;
2, present method does not have secondary pollution, can not produce three and cause product;
3, present method clearance height, the toxicological security height;
4, this method investment is little, workable, can really be applied to the removal of Microcystin in the aqueous systems.
Embodiment
The invention will be further described below in conjunction with specific embodiment.
Spraying machine used in the present invention is the WFB-18V wide range knapsack sprayer that Huaghai Pharmaceutical Machinery Co., Ltd., Nantong produces.
C5H6Br2N2O2 chemical name of the present invention is DBDMH, and be called for short: DBDMH, molecular formula is C
5H
6O
2N
2Br
2C5H6Br2N2O2 is light yellow crystalline powder, be slightly soluble in water, be dissolved in chloroform, the organic solvents such as ethanol, stable when dry, easily decompose in strong acid or highly basic, can further be processed into particle and tablet, its sterilization optimal pH is 5-7, at short notice biodegradation of residue after the sterilization does not have any pollution to environment.C5H6Br2N2O2 can constantly discharge the Br-ion in water, form hypobromous acid, and reaction equation is: C
5H
6N
2O
2Br
2+ 2H
2O → C
5H
8N
2O
2+ 2HOBr.The Microcystin oxidation Decomposition that hypobromous acid can produce algae death afterwards and losing efficacy plays bactericidal effect.
Effective bromine of the present invention is that part of bromine that can play disinfection, can form that part of bromine of hypobromous acid (HOBr).
Embodiment one:
C5H6Br2N2O2 is mixed with the C5H6Br2N2O2 solution that concentration is 100mg/L, adopts spraying machine with the waters of C5H6Br2N2O2 spray solution to Pollution of Microcystin, the sprinkling amount of C5H6Br2N2O2 solution is 100ml/m
2Described C5H6Br2N2O2 spray solution is to the 1min of waters, and the content of effective bromine is 100mg/L in the waters.
Collection surface to 10 centimeter depths water sample before spraying, the density that detects Microcystin wherein is 0.3 μ g/L, collection surface to 10 centimeter depths water sample after 10 minutes, the density that detects Microcystin wherein is less than 0.001 μ g/L.
C5H6Br2N2O2 constantly discharges the Br-ion in water, form hypobromous acid (HOBr), and reaction equation is: C
5H
6N
2O
2Br
2+ 2H
2O → C
5H
8N
2O
2+ 2HOBr.Hypobromous acid can make the Microcystin oxidation Decomposition that algae death produces afterwards and lose efficacy, and plays bactericidal effect.
Embodiment two:
C5H6Br2N2O2 is mixed with the C5H6Br2N2O2 solution that concentration is 10000mg/L, adopts spraying machine with the waters of C5H6Br2N2O2 spray solution to Pollution of Microcystin, the sprinkling amount of C5H6Br2N2O2 solution is 300ml/m
2Described C5H6Br2N2O2 spray solution is to the 60min of waters, and the content of effective bromine is 0.1mg/L in the waters.
Collection surface to 10 centimeter depths water sample before spraying, the density that detects Microcystin wherein is 0.3 μ g/L, collection surface to 10 centimeter depths water sample after 10 minutes, the density that detects Microcystin wherein is less than 0.001 μ g/L.C5H6Br2N2O2 can constantly discharge the Br-ion in water, form hypobromous acid (HOBr), and reaction equation is: C
5H
6N
2O
2Br
2+ 2H
2O → C
5H
8N
2O
2+ 2HOBr.Hypobromous acid can make the Microcystin oxidation Decomposition that algae death produces afterwards and lose efficacy, and plays bactericidal effect.
Embodiment three:
C5H6Br2N2O2 is mixed with the C5H6Br2N2O2 solution that concentration is 5000mg/L, adopts spraying machine with the waters of C5H6Br2N2O2 spray solution to Pollution of Microcystin, the sprinkling amount of C5H6Br2N2O2 solution is 200ml/m
2Described C5H6Br2N2O2 spray solution is to the 30min of waters, and the content of effective bromine is 50mg/L in the waters.
Collection surface to 10 centimeter depths water sample before spraying, the density that detects Microcystin wherein is 0.3 μ g/L, collection surface to 10 centimeter depths water sample after 10 minutes, the density that detects Microcystin wherein is less than 0.001 μ g/L.C5H6Br2N2O2 can constantly discharge the Br-ion in water, form hypobromous acid (HOBr), and reaction equation is: C
5H
6N
2O
2Br
2+ 2H
2O → C
5H
8N
2O
2+ 2HOBr.Hypobromous acid acid can make the Microcystin oxidation Decomposition that algae death produces afterwards and lose efficacy, and plays bactericidal effect.
Claims (2)
1. a bromide is removed the method for Microcystin in the water body, it is characterized in that, described method adopts following steps:
C5H6Br2N2O2 is mixed with the C5H6Br2N2O2 solution that concentration is 100～10000mg/L, and to the waters that is contaminated by microcystin, the sprinkling amount of C5H6Br2N2O2 solution is 100～300ml/m to the employing spraying machine with the C5H6Br2N2O2 spray solution
2
2. the method for claim 1 is characterized in that, described C5H6Br2N2O2 spray solution is to the 1～60min of waters, and the content of effective bromine is 0.1～100mg/L in the waters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010151393 CN101817577A (en) | 2010-04-21 | 2010-04-21 | Method for removing Microcystin-LR in water body by using bromides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010151393 CN101817577A (en) | 2010-04-21 | 2010-04-21 | Method for removing Microcystin-LR in water body by using bromides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101817577A true CN101817577A (en) | 2010-09-01 |
Family
ID=42652881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010151393 Pending CN101817577A (en) | 2010-04-21 | 2010-04-21 | Method for removing Microcystin-LR in water body by using bromides |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104068056A (en) * | 2014-06-27 | 2014-10-01 | 江苏丽莎环保科技有限公司 | Application of inorganic bromine disinfectant to aspect of killing microcystic toxins |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1336114A (en) * | 2000-07-31 | 2002-02-20 | 严幼宽 | Disinfectant for culture of fishery |
| WO2004071958A2 (en) * | 2003-02-12 | 2004-08-26 | Kureha Techno Eng Co., Ltd. | Method for inhibiting algae |
| CN1836514A (en) * | 2005-03-25 | 2006-09-27 | 高旭 | Novel disinfection and slow-release composition containing BCDMH and its preparation method |
-
2010
- 2010-04-21 CN CN 201010151393 patent/CN101817577A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1336114A (en) * | 2000-07-31 | 2002-02-20 | 严幼宽 | Disinfectant for culture of fishery |
| WO2004071958A2 (en) * | 2003-02-12 | 2004-08-26 | Kureha Techno Eng Co., Ltd. | Method for inhibiting algae |
| CN1836514A (en) * | 2005-03-25 | 2006-09-27 | 高旭 | Novel disinfection and slow-release composition containing BCDMH and its preparation method |
Non-Patent Citations (1)
| Title |
|---|
| 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 20080315 苏汉成 二溴海因对铜绿微囊藻水华的去除研究 第23-26页 1-2 , 2 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104068056A (en) * | 2014-06-27 | 2014-10-01 | 江苏丽莎环保科技有限公司 | Application of inorganic bromine disinfectant to aspect of killing microcystic toxins |
| CN104068056B (en) * | 2014-06-27 | 2016-08-24 | 江苏丽莎环保科技有限公司 | The application in terms of killing Microcystin of a kind of inorganic bromine disinfectant |
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Application publication date: 20100901 |