Tecnologias avan?adas de tratamento visando à remo??o de cor e fenol de e?uente de indústria de celulose e papel

摘要

This paper analyzes the removal of colour and phenol found in pulp and paper industry wastewater using advanced technologies: (i) coagulation-?occulation-sedimentation, (ii) granular activated carbon fltration, (iii) combination of coagulation-?occulation-sedimentation and granular activated carbon fltration. Jar tests and bench-scale column tests were performed. The main results obtained were: removals of 89% and 60% for colour and phenol, respectively, using coagulation-?occulation-sedimentation; for activated carbon fltration, overall colour and phenol removal of 45% and 47%, respectively; and maximum removals obtained were 99% for colour and above 93% for phenol, when the complete cycle (coagulation-?occulationsedimentation combined with fltration) was tested. Along with this last treatment, it was possible to obtain a high quality fnal efuent and to comply with the environmental regulations in several aspects.