Institution: | 1.Graduate in Environmental Engineering, Federal University of Rio Grande Do Sul, Av, Bento Gon?alves, Porto Alegre, RS, 91501-970, Brazil ;2.Postgraduate Program in Environmental Technology, University of Santa Cruz Do Sul (UNISC), Avenida Independência, Santa Cruz Do Sul, Rio Grande do Sul, 229396815-900, Brazil ;3.Postgraduate Program in Water Resources and Environmental Sanitation, Federal University of Rio Grande Do Sul, Av. Bento Gon?alves, Porto Alegre, RS, 91501-970, Brazil ; |