Dr. Ulf Miehe works at the Berlin Center for Competence in Water (KWB, Germany), a non-profit research center on urban water management. Since 2015 he is responsible for the department of Process Innovation, including topics such as advanced water and wastewater treatment, water reuse, nutrient recovery, sludge management and energy positive wastewater plants. Since April 2016 he is chairman of the working group on ”Ozonation in municipal WWTP” of the German Association for Water, Wastewater and Waste.