Affiliation: | aDepartment of Mechanical Engineering, Institute for Energy- and Environmental Engineering (EUT), Faculty of Engineering, Water Technology Group, University of Duisburg-Essen, Bismarckstr. 90, 47048 Duisburg, Germany bIWW, Rheinisch-Westfaelisches Institut fuer Wasserforschung GmbH Moritzstr. 26, 45476 Muelheim, Germany |