3 documents found, page 1 of 1
Dissolution of Ag nanoparticles in agricultural soils and effects on soil exoen...
Cruz, Nuno C.; Farto, Márcia; Mourinha, Clarisse; Tavares, Daniela; Duarte, Armando C.; Trindade, Tito; Pereira, Eduarda; Romkens, Paul F.A.M.To assess environmental risks related to the mobility and toxicity of AgNPs, the chemical availability of AgNPs and polyvinylpyrrolidone-coated AgNPs (PVP-AgNPs) in three agricultural soils was quantified in a pot experiment. Porewater collection and soil extractions with 0.01 M CaCl2, 0.4 M Glycine (pH 1.5) and 0.05 M NH4-EDTA were performed. The effect on soil exoenzyme activities was also assessed. Porewater...
Beneficial use of dewatered and composted sewage sludge as soil amendments: beh...
Alvarenga, Paula; Farto, Márcia; Mourinha, Clarisse; Palma, PatríciaIn Portugal, where soils have a very low topsoil organic matter content, the use of sewage sludge (SS) as organic soil improvers seems an attractive option, because it would enable organic matter, N, P, K and other nutrients to be recycled. However, the risk of this practice must be properly assessed. The aim of this study was to evaluate the potential risk of the use of dewatered and composted SS as soil amend...
Sewage sludge, compost and other representative organic wastes as agricultural ...
Mourinha, Clarisse; Farto, Márcia; Sengo, Joana; Morais, Marie-Christine; Cunha-Queda, Cristina; Palma, Patrícia; Santos, Maria Teresa; Alvarenga, PaulaNine different samples of sewage sludges, composts and other representative organic wastes, with potential interest to be used as agricultural soil amendments, were characterized: municipal sewage sludge (SS1 and SS2), agro industrial sludge (AIS), municipal slaughterhouse sludge (MSS), mixed municipal solid waste compost (MMSWC), agricultural wastes compost (AWC), compost produced from agricultural wastes and ...