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Abstract
In addition to a short review of the ASCAM model referring to COD and nitrogen removal, a detailed design procedure for the anaerobic reactor in Enhanced Biological Phosphorus Removal (EBPR) plants is presented. The proposed procedure has been developed taking into account the kinetic and stoichiometric equations, as experimentally determined by Wentzel et al. (1985) and some of the simplified hypotheses suggested by Marais (1988). The stoichiometric coefficient Csp which relates the P released to the sequestered acetate (? Pr/ASbs) has been experimentally evaluated with pilot scale tests. Examples of application of the proposed model concerning the anaerobic reactor design and the analysis of the sensitivity to significant parameters characterizing the influent: rbs (readily biodegradable COD/total COD) and PF (phosphorus concentration), are presented.
