Pre-ozonation of aqueous azo dye (Acid Red-151) followed by activated sludge process

Date

2006-10-15

Author

Gokcen, Fulya
Ozbelge, Tulay A.

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In this study, the efficiency of the integrated process was investigated in which the pre-ozonation step was followed by activated sludge process (ASP) in treating the aqueous Acid Red-151 (AR 151) solutions. The percent dye removal in the integrated process was found to be 47% for a pre-ozonation time of 30 min, instead of 25% in the singly ASP without pre-ozonation. The treatment efficiency of this process could be higher if the pre-ozonation time of 120 min yielding maximum enhancement of biodegradability at a peak value of BOD5/COD ratio were used before the biological treatment process.

Subject Keywords

Industrial and Manufacturing Engineering, General Chemistry, General Chemical Engineering, Environmental Chemistry

URI

https://hdl.handle.net/11511/64858

Journal

CHEMICAL ENGINEERING JOURNAL

DOI

https://doi.org/10.1016/j.cej.2006.07.005

Collections

Department of Chemical Engineering, Article

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Citation Formats

F. Gokcen and T. A. Ozbelge, “Pre-ozonation of aqueous azo dye (Acid Red-151) followed by activated sludge process,” CHEMICAL ENGINEERING JOURNAL, pp. 109–115, 2006, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/64858.