DocumentCode
3133014
Title
Notice of Retraction
Comparing of Flotation and Sedimentation Process for Treating Trihalomethanes
Author
Xiaoming Sun ; Qishan Wang ; Yanfang Liu ; Wenshu Zhu
Author_Institution
Coll. of Environ. Sci. & Eng., Nankai Univ., Tianjin, China
fYear
2010
fDate
18-20 June 2010
Firstpage
1
Lastpage
4
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.
The treatment of prechloridized water by the coagulation-dissolved air flotation process and the coagulation-sedimentation process was examined, the removal of trihalomethanes (THMs) and trihalomethanes formation potential (THMFP) were studied. The results show that the removal rate of THM and THMFP treated with flotation process is 37% and 55% respectively, which is respectively 18% and 21% higher than with sedimentation process (19% and 34%); After flotation process, the value of UV254/TOC is decreased significantly, which indicates that the THMFP is decreased significantly, and the formation of THMs during the follow-up chlorination process can be reduced obviously; the removal of THMFP in each molecular weight range treated with flotation is better than with sedimentation, those two processes mainly remove the THMFP of larger molecular weight range and the removal efficiency of THMFP in smaller molecular weight range is poor.
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.
The treatment of prechloridized water by the coagulation-dissolved air flotation process and the coagulation-sedimentation process was examined, the removal of trihalomethanes (THMs) and trihalomethanes formation potential (THMFP) were studied. The results show that the removal rate of THM and THMFP treated with flotation process is 37% and 55% respectively, which is respectively 18% and 21% higher than with sedimentation process (19% and 34%); After flotation process, the value of UV254/TOC is decreased significantly, which indicates that the THMFP is decreased significantly, and the formation of THMs during the follow-up chlorination process can be reduced obviously; the removal of THMFP in each molecular weight range treated with flotation is better than with sedimentation, those two processes mainly remove the THMFP of larger molecular weight range and the removal efficiency of THMFP in smaller molecular weight range is poor.
Keywords
coagulation; molecular weight; organic compounds; sedimentation; water pollution; water treatment; coagulation-dissolved air flotation process; coagulation-sedimentation process; follow-up chlorination process; molecular weight; prechloridized water; removal efficiency; trihalomethanes formation potential; trihalomethanes removal; trihalomethanes treatment; Biomembranes; Coagulation; Educational institutions; Electrokinetics; Inductors; Instruments; Protection; Sun; Temperature; Water resources;
fLanguage
English
Publisher
ieee
Conference_Titel
Bioinformatics and Biomedical Engineering (iCBBE), 2010 4th International Conference on
Conference_Location
Chengdu
ISSN
2151-7614
Print_ISBN
978-1-4244-4712-1
Type
conf
DOI
10.1109/ICBBE.2010.5517045
Filename
5517045
Link To Document