Data/hora: 21/06/2024 06:30:03

Biblioteca(s): | Embrapa Mandioca e Fruticultura.
Data corrente: | 08/01/2002
Data da última atualização: | 08/01/2002
Autoria: | XIAO, C.; MA, L. Q.; SARIGUMBA, T.
Afiliação: | Universidade of Florida, Gainesville.
Título: | Effects of soil on trace metal leachability from papermill ashes and sludge
Ano de publicação: | 1999
Fonte/Imprenta: | Journal Environ. Qual., v.28, n.01, p.321-333, 1999
Idioma: | Inglês
Conteúdo: | Understanding trace metal leachability is important for successful land application of papermill residues. Trace metal leachability from papermill ashes (Ash 1 and 2) and papermill sludge (Sludge), and the effects of a soil on their leachability were determined by leaching the three papermill residues packed on top of a soil in a column. The leachates were analyzed for pH, electrical conductivity (EC), dissolved organic carbon (DOC), and concentrations of six metals (Cd, Cr, Cu, Pb, Se, and Zn). Ash 1 behaved significantly differently from Ash 2 during the leaching experiment, primarily due to its high pH and Na contents. Application of papermill residues significantly increased the pH, EC, and DOC concentrations in leachates, with Ash 1 having significantly greater impacts than Ash 2 and sludge. Soil columns under alkaline leaching of Ash 1 ppeared bleached due to dissolution of solid-phase organic matter.
Categoria do assunto: | --
Registro original: | Embrapa Mandioca e Fruticultura (CNPMF)
Exemplares: | CNPMF - (19361-1) - ADD - SP - -- - S12085 -  - S12085 - DIS