DocumentCode
3335851
Title
Notice of Retraction
Research on Hexavalent Chromium Removal from Wastewater by Gas Quenching Steel Slag
Author
Li Jun-guo ; Wei Ling-hong ; Zhang Yu-zhu
Author_Institution
Sch. of Mater. & Metall., Northeastern Univ., Shenyang, 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.
Gas quenching steel slag (GQSS), which was prepared by gas quenching equipment under inert atmosphere, possessed some advantages for pollutants removal from wastewater. Static state experiment has been carried on to investigate Cr(VI) removal from wastewater by GQSS. The results indicated that initial pH value, solid-liquid ratio, Cr(VI) original concentration and dissolved oxygen in solution have significant influence on Cr(VI) removal percentage. Cr(VI) solution had better to be controlled in acidic condition because Cr(VI) reduction could be restrained in alkaline solution. On the other hand, the initial pH value could not much lower because precipitation of Cr(III) could be inhibited. To improve Cr(VI) removal percentage, the solid-liquid ratio should be controlled at 1:100. Under different original concentrations, Cr(VI) removal percentage was in the range of from 20% to 45% because the GQSS without any further treatment and modification.
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.
Gas quenching steel slag (GQSS), which was prepared by gas quenching equipment under inert atmosphere, possessed some advantages for pollutants removal from wastewater. Static state experiment has been carried on to investigate Cr(VI) removal from wastewater by GQSS. The results indicated that initial pH value, solid-liquid ratio, Cr(VI) original concentration and dissolved oxygen in solution have significant influence on Cr(VI) removal percentage. Cr(VI) solution had better to be controlled in acidic condition because Cr(VI) reduction could be restrained in alkaline solution. On the other hand, the initial pH value could not much lower because precipitation of Cr(III) could be inhibited. To improve Cr(VI) removal percentage, the solid-liquid ratio should be controlled at 1:100. Under different original concentrations, Cr(VI) removal percentage was in the range of from 20% to 45% because the GQSS without any further treatment and modification.
Keywords
chromium; pH; quenching (thermal); slag; wastewater treatment; Cr+3; Cr+4; Cr+6; GQSS; acidic condition; alkaline solution; dissolved oxygen; gas quenching equipment; gas quenching steel slag; hexavalent chromium removal; inert atmosphere; pH value; pollutants removal; removal percentage; solid-liquid ratio; static state experiment; wastewater; Chromium; Equations; Slag; Steel; Surface treatment; Wastewater; Wastewater treatment;
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.2011.5780992
Filename
5780992
Link To Document