1. Institute of Science and Technology Federal University of Alfenas (UNIFAL) Poços de Caldas Brazil
2. Biological Processes Laboratory (LPB), São Carlos School of Engineering (EESC) University of São Paulo (USP) São Paulo Brazil
3. Environmental Engineering Department Federal University of Triângulo Mineiro (UFTM) Uberaba Brazil
4. Department of Hydraulic and Environmental Engineering, Polytechnic School University of São Paulo, Avenida Professor Almeida Prado São Paulo Brazil