Use of the swine wastewater in the biostabilization of urban green residues

Abstract Green solid residues from urban pruning, rests of agricultural products and swine wastewater are problems in urban and rural areas. A alternative to stabilization of these residues is composting followed by wormcomposting. In this study the integration of composting and wormcomposting in the biostabilization of the urban green solid residues with swine wastewater and commercial activators was evaluated. The results showed the possibility of the swine wastewater utilization as inoculate agent, in substitution of commercial activator, with the objective of producing subsegmently wormcomposts. The metals zinc and copper were detected in obtained wormcomposts, however, their concentrations did not offer risk for human health, plants and soil contamination.