2.5.3. Heterotroph anoxic yield (YH) and readily biodegradable fractions (SS) YH and SS were related to PDN by the following equations (Cokgor et al., 1998; Kujawa and Klapwiji, 1999; Boursier, 2003):
2.5.3. Heterotroph anoxic yield (YH) and readily biodegradablefractions (SS)YH and SS were related to PDN by the following equations(Cokgor et al., 1998; Kujawa and Klapwiji, 1999; Boursier, 2003):