1. Post-Graduation Program in Environmental Quality, Feevale University RS 239, 2755, CEP 93352-000, Novo Hamburgo, Rio Grande do Sul (RS), Brazil
2. Post-Graduation Program in Environment and Development, UNIVATES, Lajeado, Rio Grande do Sul (RS), Brazil
3. Chemistry Institute, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul (RS), Brazil
4. Australian Centre for Research on Separation Science, School of Applied Sciences, RMIT University, GPO Box 2476, Melbourne 3001, Victoria, Australia