Effect of chromium (CrVI) on the growth rate of activated sludge bacteria

The effect of hexavalent chromium on the growth rate of activated sludge bacteria was studied under chemostatic cultivation. Chromium (CrVI) in the range to 11 mg/l decreases the maximum growth rate μmax and increases the Monod constant Ks. Its effect can be described by a generalized form of the kinetic equation in the form The values of μmax, Ks, p, q, r were estimated as 0.5253 h−1, 1.2071 mg/l, −0.07941 l/mg, −0.070025 l/mg, 1.758517 l/mg respectively.