DocumentCode
3335613
Title
Notice of Retraction
Chemical Oxygen Demand (COD) Degradation Kinetics Analysis of Paper Mill Effluent Treatment with Ozonation and Catalytic Ozonation
Author
Li-rong Lei ; You-ming Li ; Li-ming Ma
Author_Institution
State Key Lab. of Pulp & Paper Eng., South China Univ. of Technol., Guangzhou, 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.
Biological, physical and chemical methods have been extensively used to treat paper mill effluent and effectively decreased the pollution level of the effluent. But some poorly- or non-biodegradable organic compounds cannot be degraded through these traditional treatment methods. The objective of this study is to investigate the chemical oxygen demand (COD) degradation kinetics of the paper mill effluent when the effluent was treated by single ozonation and catalytic ozonation with activated carbon (AC), TiO2/AC, Al2O3 and TiO2/Al2O3. Results show that CODcr degradation process of the paper mill effluent studied in this paper with single ozonation and catalytic ozonation should follow apparent second-order kinetics, and catalytic ozonation with AC, TiO2/AC, Al2O3 and TiO2/Al2O3 effectively enhances the reaction rate constant of CODcr degradation of the effluent, compared with single ozonation. The CODcr. removal rate and reaction rate constant by single ozonation are 34% and 1.21698×10-4 (mg/L)-1·min-1 and CODcr removal rates and reaction rate constants increase to 35-55% and 1.27775-2.64412×10-4 (mg/L)-1·min-1 by catalytic ozonation with AC, TiO2/AC, Al2O3 and TiO2/Al2O3 respect- vely. It is also found that the content of TiO2 loaded on AC or Al2O3 has important effect on the enhancement of CODcr removal rate and reaction rate constant of the paper mill effluent investigated in this study in the process of ozonation and catalytic ozonation.
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.
Biological, physical and chemical methods have been extensively used to treat paper mill effluent and effectively decreased the pollution level of the effluent. But some poorly- or non-biodegradable organic compounds cannot be degraded through these traditional treatment methods. The objective of this study is to investigate the chemical oxygen demand (COD) degradation kinetics of the paper mill effluent when the effluent was treated by single ozonation and catalytic ozonation with activated carbon (AC), TiO2/AC, Al2O3 and TiO2/Al2O3. Results show that CODcr degradation process of the paper mill effluent studied in this paper with single ozonation and catalytic ozonation should follow apparent second-order kinetics, and catalytic ozonation with AC, TiO2/AC, Al2O3 and TiO2/Al2O3 effectively enhances the reaction rate constant of CODcr degradation of the effluent, compared with single ozonation. The CODcr. removal rate and reaction rate constant by single ozonation are 34% and 1.21698×10-4 (mg/L)-1·min-1 and CODcr removal rates and reaction rate constants increase to 35-55% and 1.27775-2.64412×10-4 (mg/L)-1·min-1 by catalytic ozonation with AC, TiO2/AC, Al2O3 and TiO2/Al2O3 respect- vely. It is also found that the content of TiO2 loaded on AC or Al2O3 has important effect on the enhancement of CODcr removal rate and reaction rate constant of the paper mill effluent investigated in this study in the process of ozonation and catalytic ozonation.
Keywords
activated carbon; effluents; oxygen; ozonation (materials processing); paper mills; titanium compounds; wastewater treatment; COD; TiO2-Al2O3; activated carbon; biological methods; catalytic ozonation; chemical methods; chemical oxygen demand; degradation kinetics analysis; nonbiodegradable organic compounds; paper mill effluent treatment; physical methods; poorly-biodegradable organic compounds; Aluminum oxide; Degradation; Effluents; Inductors; Kinetic theory; Organic compounds; Paper mills;
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.2011.5780976
Filename
5780976
Link To Document