DocumentCode
3337258
Title
Notice of Retraction
Research on Treatment of Harbor Oily Wastewater by Coagulation-Sedimentation Process
Author
Guoyi Li ; Yanjie Wei ; Bin Wang ; Wei Du
Author_Institution
Key Lab. of Environ. Protection in Water Transp. Eng. Minist. of Commun., Tianjin Res. Inst. of Water Transp. Eng., Tianjin, 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.
In this study, coagulation-sedimentation process was adopted to treat harbor oily wastewater. Single-factor experiments showed that the optimum parameters were dosage of poly-aluminum chloride (PAC) of 150 mg L-1 and polyaerylamide (PAM) of 2.5 mg L-1; pH of 7.5. The mixture was stirred vigorously for 1 min at the rotational speed of 300 r min-1, then stirred for 10 min at 100 r min-1, and 10 min at 50 r min-1, then settled for 30 min. Under these conditions, COD concentration was reduced from 481~510 mg L-1 to around 200 mg L-1, oil content from 21~36 mg L-1 to 10~15 mg L-1, and SS from 153~197 mg L-1 to 21~34 mg L-1. Meanwhile, it was observed a linear relationship between removals of suspended solid (SS) and oil content, indicating the oil pollutant was mainly absorbed on the suspended solid.
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.
In this study, coagulation-sedimentation process was adopted to treat harbor oily wastewater. Single-factor experiments showed that the optimum parameters were dosage of poly-aluminum chloride (PAC) of 150 mg L-1 and polyaerylamide (PAM) of 2.5 mg L-1; pH of 7.5. The mixture was stirred vigorously for 1 min at the rotational speed of 300 r min-1, then stirred for 10 min at 100 r min-1, and 10 min at 50 r min-1, then settled for 30 min. Under these conditions, COD concentration was reduced from 481~510 mg L-1 to around 200 mg L-1, oil content from 21~36 mg L-1 to 10~15 mg L-1, and SS from 153~197 mg L-1 to 21~34 mg L-1. Meanwhile, it was observed a linear relationship between removals of suspended solid (SS) and oil content, indicating the oil pollutant was mainly absorbed on the suspended solid.
Keywords
coagulation; oils; sedimentation; wastewater treatment; coagulation-sedimentation process; harbor oily wastewater; oil content; oil pollutant; poly-aluminum chloride; polyaerylamide; suspended solid; Coagulation; Effluents; Solids; Velocity control; 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.2011.5781079
Filename
5781079
Link To Document