1. Laboratory of Industrial Water and Ecotechnology, Ghent University Campus Kortrijk, Graaf Karel De Goedelaan 5, Kortrijk 8500, Belgium
2. Laboratory of Analytical Chemistry and Applied Ecochemistry, Ghent University, Coupure Links 653, Ghent 9000, Belgium
3. The Institute of Environmental Engineering, RWTH Aachen University, Mies-van-der-Rohe-Str. 1, Aachen 52074, Germany