Estudo do comportamento do chumbo em latossolos brasileiros tratados com fosfatos: contribuições para a remediação de sítios contaminados.
| Contribuinte(s) |
Maria Luiza F. M. Kede, FIOCRUZ; Josino C. Moreira, FIOCRUZ; Elena Mavropoulos, Centro Brasileiro de Pesquisas Físicas; Alexandre M. Rossi, Centro Brasileiro de Pesquisas Físicas; Luiz Carlos Bertolino, UERJ; DANIEL VIDAL PEREZ, CNPS; Nilce Carbonel Campos da Rocha, UFRJ. |
|---|---|
| Data(s) |
06/10/2016
06/10/2016
2008
03/12/2008
|
| Resumo |
Phosphates have been used for lead immobilization in soils but the influence of soil type is not fully understood. In this work, lead chemical behaviour in two Brazilian latosoils (LA and LV) was studied via treatment with phosphates. The Pb concentration in Toxicity Characteristic Leaching Procedure (TCLP) solutions was decreased in all treatments. After treatment with H3PO4 the Pb concentration in the LA remained within the regulatory limit established by EPA. The ecotoxicological results with Daphnia pulex showed that this treatment reduced the lead bioavailability. Sequential extraction analyses showed that the lead was transferred from the most available to the residual fraction. Relevant decrease of soluble lead was observed in all phosphate treatments. 2008 |
| Identificador |
13568 |
| Idioma(s) |
pt_BR |
| Publicador |
Química Nova, São Paulo, v. 31, n. 3, p. 579-584, 2008. |
| Relação |
Embrapa Solos - Artigo em periódico indexado (ALICE) |
| Palavras-Chave | #Contaminação do solo #Remediação #Chumbo #Fosfato |
| Tipo |
Artigo em periódico indexado (ALICE) |
