Evaluation of the agronomic potential of vermicompost produced from domestic sewage sludge

Abstract

The main objective of this research was to evaluate the agronomic potential of the vermicompost produced from domestic sewage sludge and mixtures of domestic sewage sludge and soil, following the criteria of the Brazilian Ministry of Agriculture, Livestock and Food Supply (MAPA), aiming at a sustainable use for domestic sewage sludge, transforming an undesirable residue into a valuable commercial product. The results obtained for the so produced vermicomposts, in comparison to the specifications, warranties and contaminating limits requirements of the resolution Nº 375, were satisfactory for at least one of the domestic sewage sludge and soil mixtures, proving the potential of this residue for application in agriculture as fertilizer or soil conditioner.