Effect of Initial Azo Dye Concentration and Biomass Acclimation on Sludge Digestion and Dye Co-treatment

Date

2010-04-01

Author

Ozkan-Yucel, Umay Gokce
Gökçay, Celal Ferdi

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The effect of a reactive azo dye (the hydrolyzed form of Reactive Orange 107, HRO107) on the digestion of municipal waste sludge (WS) was studied. The study also focused Oil the effect: of acclimation of the anaerobic mixed culture on dye treatment. Anaerobic batch assays were carried out in serum bottles under mesophilic conditions. Unacclimated and acclimated anaerobic mixed cultures were used for the study. Both unacclimated and acclimated anaerobic cultures completely reduced HRO107 during WS digestion. Inhibitory HRO107 concentration was found to be 800 mg/L for unacclimated mixed culture. Acclimation increased the inhibitory concentration level from 800 to 3200 mg/L. Sulfanilic acid and four other unidentified dye reduction end products were detected at the end of the assays. The results of this study indicated that anaerobic municipal WS digesters have the potential to be a cost efficient and effective pre treatment method.

Subject Keywords

Pollution, Water Science and Technology, Environmental Chemistry

URI

https://hdl.handle.net/11511/58025

Journal

CLEAN-SOIL AIR WATER

DOI

https://doi.org/10.1002/clen.200900165

Collections

Department of Environmental Engineering, Article

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Citation Formats

U. G. Ozkan-Yucel and C. F. Gökçay, “Effect of Initial Azo Dye Concentration and Biomass Acclimation on Sludge Digestion and Dye Co-treatment,” CLEAN-SOIL AIR WATER, pp. 387–393, 2010, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/58025.