Removal mechanisms of different substrates during the pre-denitrification step of an anoxic/aerobic sequencing process are studied. Biomass was cultivated in an anoxic/aerobic SBR and fed with a mixture of low and high molecular weight compounds. Substrate removal mechanisms are studied by means of batch tests, performed under anoxic conditions. The dynamic response to a spike of four different substrates (acetate, glucose, glutamic acid and ethanol) is described by simultaneously considering substrate and electron acceptor removal, and PHB and carbohydrates storage. PHB storage is a relevant mechanism during the removal of acetate and ethanol, while glucose is removed mainly by carbohydrate storage.
Role of storage phenomena on removal of different substrates during pre-denitrification
M. Majone, M. Beccari, D. Dionisi, C. Levantesi, V. Renzi; Role of storage phenomena on removal of different substrates during pre-denitrification. Water Sci Technol 1 February 2001; 43 (3): 151–158. doi: https://doi.org/10.2166/wst.2001.0131
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