DocumentCode
3337983
Title
Notice of Retraction
Synchronous Removal of Nitrogen and Sulfur from Organic Wastewater by Anammox Bacteria
Author
Xue-Hong Zhang ; Xiao-Yan Lu ; Jie Liu
Author_Institution
Guangxi Key Lab. of Environ. Eng., Guilin Univ. of Technol., Guilin, China
fYear
2011
fDate
10-12 May 2011
Firstpage
1
Lastpage
3
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.
To investigate whether the anammox bacteria can remove the nitrogen and sulfate simultaneously, we performed an experiment by simulative anaerobic reactors in shakers, which was inoculated with anaerobic biological activated sludge and using the water containing the sulfate and fed with the organic wastewater and ammonium as substrate. By monitoring the changes of sulfate and ammonia concentrations, the process of nitrogen and sulfur removal in the reactors could be determined. The results showed that the concentration of sulphur was unstable and irregular. The average removal of sulfur and nitrogen was about 45% and 30% respectively, which indicated that there was a sulfate reduction in reactors besides the synchronous denitrification and desulfurazation reaction. Therefore the technology of using anammox bacteria to remove nitrogen and sulfur simultaneously in organic wastewater is feasible. This phenomenon has been seldom reported previously. The finding may suggest a new anaerobic removal process of ammonia and sulfate.
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.
To investigate whether the anammox bacteria can remove the nitrogen and sulfate simultaneously, we performed an experiment by simulative anaerobic reactors in shakers, which was inoculated with anaerobic biological activated sludge and using the water containing the sulfate and fed with the organic wastewater and ammonium as substrate. By monitoring the changes of sulfate and ammonia concentrations, the process of nitrogen and sulfur removal in the reactors could be determined. The results showed that the concentration of sulphur was unstable and irregular. The average removal of sulfur and nitrogen was about 45% and 30% respectively, which indicated that there was a sulfate reduction in reactors besides the synchronous denitrification and desulfurazation reaction. Therefore the technology of using anammox bacteria to remove nitrogen and sulfur simultaneously in organic wastewater is feasible. This phenomenon has been seldom reported previously. The finding may suggest a new anaerobic removal process of ammonia and sulfate.
Keywords
ammonia; inorganic compounds; microorganisms; sludge treatment; wastewater treatment; ammonia concentration; anaerobic biological activated sludge; anaerobic removal process; anammox bacteria; organic wastewater; simulative anaerobic reactors; sulfate concentration; synchronous denitrification reaction; synchronous desulfurazation reaction; synchronous nitrogen removal; synchronous sulfur removal; Effluents; Inductors; Microorganisms; Nitrogen; Temperature measurement; Wastewater;
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.2011.5781114
Filename
5781114
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