DocumentCode
527267
Title
Notice of Retraction
Optimization on the solubilization of thickened waste activated sludge using uniform design method
Author
Yong-Zhi Chi ; Min Ji ; Yu-You Li ; Xue-Ning Fei ; Hong-Ying Yuan ; Shao-Po Wang ; Jian-Xing Li
Author_Institution
Sch. of Environ. Sci. & Technol., Tianjin Univ., Tianjin, China
Volume
1
fYear
2010
fDate
17-18 July 2010
Firstpage
321
Lastpage
324
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 order to optimize target temperature, holding time and NaOH dose on solubilization degree of thickened waste activated sludge, a combined NaOH-microwave pretreatment process was studied on the basis of uniform design method. The results indicated that the variables markedly affected the solubilization degree of chemical oxygen demand (COD). The optimal conditions were determined and two-dimensional and tri-dimensional response surfaces were plotted according to the mathematical models. Within the design boundaries, the predicted maximum solubilization ratio of COD (80%) occurred at target temperature of 210°C, holding time of 51min, and NaOH dose of 0.23g-NaOH/g-TSS. Under the optimal conditions, the experimental solubilization ratio of COD (82%) was in agreement with predicted value with 2.5% deviation.
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 order to optimize target temperature, holding time and NaOH dose on solubilization degree of thickened waste activated sludge, a combined NaOH-microwave pretreatment process was studied on the basis of uniform design method. The results indicated that the variables markedly affected the solubilization degree of chemical oxygen demand (COD). The optimal conditions were determined and two-dimensional and tri-dimensional response surfaces were plotted according to the mathematical models. Within the design boundaries, the predicted maximum solubilization ratio of COD (80%) occurred at target temperature of 210°C, holding time of 51min, and NaOH dose of 0.23g-NaOH/g-TSS. Under the optimal conditions, the experimental solubilization ratio of COD (82%) was in agreement with predicted value with 2.5% deviation.
Keywords
optimisation; sludge treatment; waste; NaOH-microwave pretreatment process; chemical oxygen demand; mathematical models; optimization; response surfaces; solubilization; thickened waste activated sludge; uniform design method; Compounds; Educational institutions; Heating; Predictive models; NaOH-microwave pretreatment; solubilization; thickened waste activated sludge; uniform design method;
fLanguage
English
Publisher
ieee
Conference_Titel
Environmental Science and Information Application Technology (ESIAT), 2010 International Conference on
Conference_Location
Wuhan
Print_ISBN
978-1-4244-7387-8
Type
conf
DOI
10.1109/ESIAT.2010.5568569
Filename
5568569
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