3 documents found, page 1 of 1
Caracterização ecotoxicológica de um substrato orgânico em fim de vida
Serrão, Joana; Bouguerra, Sirine; Nogueira, Verónica; Sanchez-Hernandez, Juan C.; Carvalho, Susana M.P.; Pereira, RuthNos últimos anos a utilização de substratos para a produção de frutos e hortícolas em estufa tem vindo a aumentar. Estes materiais apresentam várias vantagens, nomeadamente um uso mais eficiente da água e dos nutrientes e a redução da aplicação de produtos fitofarmacêuticos. No entanto, o destino destes substratos no fim da sua vida útil é um assunto controverso que necessita de aprofundamento científico. Devid...
Application of a standard risk assessment scheme to a North Africa contaminated...
Pereira, Ruth; Bouguerra, Sirine; Lopes, Isabel; Santos, Bárbara; Marques, Catarina R.; Silva, Cátia; Mestiri, Amira; Frankenbach, Silja; Hentati, OlfaPhosphorus is a critical element to agriculture, consequently global phosphate rock demand will remain rising to feed a growing world population. The beneficiation of phosphorous ore gives rise to several tons of a waste by-product [phosphogypsum (PG)] which valorisation is limited, within other reasons, by the risks posed to environment and human health. Although threatening, the accumulation in stacks is the ...
Phosphogypsum as a soil fertilizer: ecotoxicity of amended soil and elutriates ...
Hentati, Olfa; Abrantes, Nelson; Caetano, Ana Luísa; Bouguerra, Sirine; Gonçalves, Fernando; Röembke, Jöerg; Pereira, RuthPhosphogypsum (PG) is a metal and radionuclide rich-waste produced by the phosphate ore industry, which has been used as soil fertilizer in many parts of the world for several decades. The positive effects of PG in ameliorating some soil properties and increasing crop yields are well documented. More recently concerns are emerging related with the increase of metal/radionuclide residues on soils and crops. Howe...