1. Chemical
Engineering Department, CIEPQPF, University of Coimbra Pólo II, Rua Sílvio Lima, 3030-790 Coimbra, Portugal
2. Aqua+Tech Specialities SA, Chemin
du Chalet-du-Bac 4, 1237 Avully, Geneva, Switzerland
3. School
of Chemical and Process Engineering, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, United Kingdom