Soil pH effect on phosphate induced cadmium precipitation in Arable soil.
Bull Environ Contam Toxicol
; 93(1): 101-5, 2014 Jul.
Article
em En
| MEDLINE
| ID: mdl-24718500
ABSTRACT
The objective of this study was to determine soil pH conditions that allow cadmium (Cd) to precipitate as Cd minerals in phosphate (P) amended soil. Cadmium immobilization could be attributed primarily to Cd adsorption due to increase in pH and negative charge. Soil pH might not affect Cd precipitation as Cd3(PO4)2 by direct reaction of Cd and P in the studied soil, even when soil pH increased up to 9.0. However, Cd might precipitate as CdCO3 with increasing pH up to 9.0 in P untreated soil and up to 8.0 in P treated soil depending on CO2 level.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Fosfatos
/
Solo
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Poluentes do Solo
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Cádmio
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article