DocumentCode
527070
Title
Notice of Retraction
The role of free bromine during bromate formation in UV photolysis
Author
Huang Xin ; Gao Nai-yun ; Lu Ning
Author_Institution
Sch. of Environ. & Chem. Eng., Shanghai Univ., Shanghai, China
Volume
1
fYear
2010
fDate
17-18 July 2010
Firstpage
854
Lastpage
858
Abstract
Notice of Retraction
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
Considerable amount of bromate were observed during UV irradiation in free chlorine solutions containing bromide, whereas much less were formed in UV catalyzed chloramine solutions containing bromide. Assuming that free bromine is the key intermediate of bromate, a simple model is developed to predict bromine species profiles either in UV catalyzed free bromine solutions or in UV catalyzed Cl2-bromide system. Pseduo-first order rate constants were derived from results of experiment. Validation from experimental data shows the model can favorably simulate the formations of bromate as well as free chlorine or free bromine decay in spite of the simplicity of the model. Hence it is likely that this model is applicable to predict bromate ion formation and bromine decay in water purification process where UV and pre-chlorination are employed.
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
Considerable amount of bromate were observed during UV irradiation in free chlorine solutions containing bromide, whereas much less were formed in UV catalyzed chloramine solutions containing bromide. Assuming that free bromine is the key intermediate of bromate, a simple model is developed to predict bromine species profiles either in UV catalyzed free bromine solutions or in UV catalyzed Cl2-bromide system. Pseduo-first order rate constants were derived from results of experiment. Validation from experimental data shows the model can favorably simulate the formations of bromate as well as free chlorine or free bromine decay in spite of the simplicity of the model. Hence it is likely that this model is applicable to predict bromate ion formation and bromine decay in water purification process where UV and pre-chlorination are employed.
Keywords
bromine compounds; catalysis; photolysis; ultraviolet radiation effects; water treatment; UV catalyzed chloramine solution; UV catalyzed free bromine solution; UV irradiation; UV photolysis; bromate formation; bromate ion formation; bromine decay; bromine species profile; free chlorine solution; pseudo-first order rate constant; water purification process; Monitoring; UV photolysis; bromate; chlorine; kinetics; modelling;
fLanguage
English
Publisher
ieee
Conference_Titel
Environmental Science and Information Application Technology (ESIAT), 2010 International Conference on
Conference_Location
Wuhan
Print_ISBN
978-1-4244-7387-8
Type
conf
DOI
10.1109/ESIAT.2010.5567467
Filename
5567467
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