The effect of substrate composition on the nutrient removal potential of sequencing batch reactors

Abstract

Experimental results suggest that sequencing batch reactors (SBR) are not efficient for enhanced biological phosphorus removal from domestic sewage with low/medium organic carbon content when denitrification preferentially competes for available carbon. Total COD is not a meaningful parameter to reflect available substrate for N and P removal; COD fractionation and identification of the readily biodegradable COD fraction are required for an accurate assessment of system performance. tr Received 14 January 1999; accepted in revised form 13 April 1999. 25 No.

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