The Retrofitting of an extended aeration process to optimise biological nitrogen removal in liquid industrial wastes

摘要

The paper deals with the optimization of the platforms for liquid industrial wastes and wastewater treatment; in particular, the retrofitting of an existing extended aeration process and its conversion to biological nitrogen removal are performed. Three different experimental phases are carried out in order to select the best final solution. First, the full scale plant and its Performances are analysed; then, a nitrification/pre-denitrification process with separate biomass is experimented after Solving the structural problems connected with air distribution and flow equalisation.