DocumentCode
3331881
Title
Notice of Retraction
Study on Disposal of Groundwater Containing Cr(VI) - The Case of Waste Iron Chippings-Fly Ash and Fe0-Fly Ash
Author
He Yuxiao ; Wei Yali ; Wang Hailin ; Xu Yan ; Liu Gangcai
Author_Institution
Key Lab. of Mountain Hazards & Earth Surface Processes, Chinese Acad. of Sci., Chengdu, China
fYear
2011
fDate
10-12 May 2011
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.
Chromium is a poisonous heavy metal element, it always exits in hexavalent chromium(Cr (VI)), and does great harm to people´s health. To effectively remove the Cr(VI) in groundwater, mixtures of waste iron chippings and fly ash and Fe0 and fly ash were adopted as materials in the laboratory. Using the least square method, the optimization parameters of the test were found. Iterant experiments showed that both purificants were effective in the disposal of the Cr(VI) polluted groundwater. After treatment, the polluted water can meet the 3rd grade national groundwater standard. The results also indicated that the mixture of waste iron chippings and fly ash have better disposal effects than that of Fe0 and fly ash under the same condition. The reasons were also analyzed. Their distinctions are mainly caused by difference in composition between iron chippings and Fe0. According to our analysis, the purification mechanism of both mixtures include the micro galvanic cell reaction among purificants particles, oxidation-reduction and co-sedimentation effects.
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.
Chromium is a poisonous heavy metal element, it always exits in hexavalent chromium(Cr (VI)), and does great harm to people´s health. To effectively remove the Cr(VI) in groundwater, mixtures of waste iron chippings and fly ash and Fe0 and fly ash were adopted as materials in the laboratory. Using the least square method, the optimization parameters of the test were found. Iterant experiments showed that both purificants were effective in the disposal of the Cr(VI) polluted groundwater. After treatment, the polluted water can meet the 3rd grade national groundwater standard. The results also indicated that the mixture of waste iron chippings and fly ash have better disposal effects than that of Fe0 and fly ash under the same condition. The reasons were also analyzed. Their distinctions are mainly caused by difference in composition between iron chippings and Fe0. According to our analysis, the purification mechanism of both mixtures include the micro galvanic cell reaction among purificants particles, oxidation-reduction and co-sedimentation effects.
Keywords
chromium; fly ash; groundwater; hazardous materials; oxidation; purification; reduction (chemical); sedimentation; waste disposal; water pollution; water treatment; Cr; cosedimentation effects; fly ash; hexavalent chromium; least square method; microgalvanic cell reaction; optimization parameter; oxidation-reduction effects; poisonous heavy metal element; polluted groundwater disposal; purificant particles; purification mechanism; waste iron chippings; Carbon dioxide; Fly ash; Impurities; Iron; Powders; Water pollution;
fLanguage
English
Publisher
ieee
Conference_Titel
Bioinformatics and Biomedical Engineering, (iCBBE) 2011 5th International Conference on
Conference_Location
Wuhan
ISSN
2151-7614
Print_ISBN
978-1-4244-5088-6
Type
conf
DOI
10.1109/icbbe.2011.5780770
Filename
5780770
Link To Document