In Brazil, a new environmental law on solid waste management
was recently implemented (Law No. 12,305, August 2, 2010),
establishing a National Policy on Solid Wastes, prioritizing the
prevention of waste generation, followed by reduction, reuse,
treatment and final disposal. The implementation of this law in the
coming years is expected to further aggravate the problem of
generation and disposal of sludge in landfills because it adds an
environmental aspect to sludge management costs.