Related Experiment Video
Updated: Jul 16, 2026

A Novel Bioreactor for High Density Cultivation of Diverse Microbial Communities
Published on: December 25, 2015
Optimization of the activated sludge anoxic reactor configuration as a means to control nutrient removal kinetically
1Department of Agricultural Chemical Tecnology, Faculty of Chemical Engineering, Budapest University of Technology and Economics, Szt. Gellért tér 4, 1521 Budapest, Hungary. benedek.plosz@niva.no
Abstract:
Factors influencing the determination of optimum reactor configuration for activated sludge denitrification are investigated in this paper. A kinetic optimization method is presented to evaluate optimal pre- and post-denitrification bioreactor stages. Applying the method developed, simulation studies were carried out to investigate the impacts of the ratio of the influent readily biodegradable and slowly biodegradable substrates and the oxygen entering the denitrification zones on the optimal anoxic reactor configuration. In addition, the paper describes the effects of the slowly biodegradable substrate on the denitrification efficiency using external substrate dosing, and it demonstrates kinetic considerations concerning the hydrolysis process. It has been shown that as a function of the biodegradable substrate composition, the stage system design with three optimized reactor compartments can effectively increase reaction rates in the denitrification zones, and can provide flexibility for varying operation conditions.
Related Concept Videos
Bioreactor Controls-II
Bioreactor Design and Operational System
Bioreactor Controls-I
Methods of Medium Optimization
Microbial Wastewater Treatment
Biological Treatment of Effluent and Waste Water

