Sediments were removed from the Belem River, and their uncertain destination may cause environmental damage and additional costs to the municipality. The aim of this study was to simulate the possibility of using an alternative allocation of the sediments based on Brazilian environmental law. The evaluation of destination and/or use was made from a preliminary chemical evaluation of inorganic contaminants (Cd, Pb, Cu, Cr, Ni, Ag, and Zn) and polycyclic aromatic hydrocarbons (PAHs) related to productive activities in the region. Assessment of possible allocations and/or use of the sediment were based on consultation of Brazilian environmental standards and laws for different matrices, which proved to be complex. This study revealed that a substantial amount of sediment can be used for useful purposes such as soil, material for recovery of contaminated areas, and fill material for civil works projects. Specific environmental standards must be prepared to discriminate uses and/or allocations according to the evolution of technical and scientific bases. A management protocol was proposed for use in future dredging projects, which may also be used in other municipalities.
public policy; waste management; sediment disposal