DocumentCode
3339345
Title
Notice of Retraction
Enhanced Chemical Coagulation for Coking Wastewater from Effluent A/O Bio-Reactor
Author
Fang Zhu ; Peng Wan ; Wenzhen Jia
Author_Institution
Coll. of Environ. Sci. & Eng., Taiyuan Univ. of Technol., Taiyuan, 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.
Enhance chemical coagulation for coking wastewater was employed as advanced treatment method for A/O biological effluent in this paper. Factors such as solution pH and coagulant dosage that influence the process of coagulation were experimentally tested. The index of A/O biological treatment of coking wastewater was: CODCr value was 367mg/L, Turbidity was 44 UNT and Chroma was 75. Results showed that during pH value 4~10 range and the same dosage of coagulation process, turbidity, chroma and CODCr removal rate of A/O biological effluent of coking wastewater were the best when pH = 6. The optimum dosage coagulant is 10mg/L when the pH = 6, this dosage is the best for removal rate of chroma, turbidity and CODCr. The removal rate of chroma, turbidity and CODCr is respectively 66.67%, 50% and 68%.The A/O biological effluent of coking wastewater meets the national emission standards finally.
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.
Enhance chemical coagulation for coking wastewater was employed as advanced treatment method for A/O biological effluent in this paper. Factors such as solution pH and coagulant dosage that influence the process of coagulation were experimentally tested. The index of A/O biological treatment of coking wastewater was: CODCr value was 367mg/L, Turbidity was 44 UNT and Chroma was 75. Results showed that during pH value 4~10 range and the same dosage of coagulation process, turbidity, chroma and CODCr removal rate of A/O biological effluent of coking wastewater were the best when pH = 6. The optimum dosage coagulant is 10mg/L when the pH = 6, this dosage is the best for removal rate of chroma, turbidity and CODCr. The removal rate of chroma, turbidity and CODCr is respectively 66.67%, 50% and 68%.The A/O biological effluent of coking wastewater meets the national emission standards finally.
Keywords
bioreactors; coagulation; effluents; emission; wastewater treatment; A/O biological effluent; A/O biological treatment; A/O bioreactor; chemical coagulation; coking wastewater; national emission standards; Chemicals; Coagulation; Effluents; Polymers; Presses; 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.2011.5781190
Filename
5781190
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