Experimental basis of activated sludge treatment for industrial wastewaters - the state of the art

The paper provides a comprehensive coverage of the experimental information required for the activated sludge treatment of industrial wastewaters. Emphasis is placed upon the choice of parameters for organic carbon removal, the value of basic relationships between major parameters, the merit of size distribution for the evaluation of pretreatment, COD fractionation and its implication in system design, major kinetic and stoichiometric coefficients for process modelling. Relevant experimental data related to a wide range of industrial wastewaters compatible with biological treatment are provided.