1. Chemical
Engineering Department, Universitat Politècnica de Catalunya-Barcelona TECH, Avenida Diagonal 647, 08028 Barcelona, Spain
2. Department
of Biological and Chemical Engineering, National Institute of Applied
Sciences and Technology (INSAT), University of Carthage (Tunisia), Tunis 676-1080 Cedex, Tunisia
3. Institute
of Environmental Assessment and Water Research IDAEA, Consejo Superior de Investigaciones Científicas (CSIC) Barcelona, 08034 Barcelona, Spain