Abstract
Inhibition and restoration of different concentrations of phenol on the bioactivity of anaerobic granular sludge were investigated with laboratory-scale equipment. It indicated that phenol concentration lower than 50 mg/l show no inhibitory effect on bioactivities of granular sludge. However, methane productivity, extracellular polymeric substances (EPS) content, and coenzyme F420 activity were decreased by varying degrees when phenol concentration adopted for inhibition ranged between 50 and 400 mg/l. Noticeably, methane productivity could be fully or partly restored in case the phenol was removed after 24 h of phenol inhibition.
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Acknowledgements
This work was financially supported by the Opening Project of Key lab of Environmental Engineering of Jiangsu Province, China (KF2007007), Natural Science Fund of Jiangsu Province, China (BK2006023), and the Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT0532).
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Yan, Q., Yu, D., Wang, Z. et al. Phenol Inhibition and Restoration of the Bioactivity of Anaerobic Granular Sludge. Appl Biochem Biotechnol 150, 259–265 (2008). https://doi.org/10.1007/s12010-008-8176-5
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DOI: https://doi.org/10.1007/s12010-008-8176-5