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Behaviour of cadmium and nickel in a soil amended with sewage sludge

✍ Scribed by I. Sastre; M. A. Vicente; M. C. Lobo

Publisher
John Wiley and Sons
Year
2001
Tongue
English
Weight
216 KB
Volume
12
Category
Article
ISSN
1085-3278

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✦ Synopsis

Abstract

Various urban and industrial sewage sludges were applied to a soil at two doses (50 and 100 t ha^βˆ’1^ y^βˆ’1^) during eight years in a field experiment. The soil was analysed at two depths (0–30 and 30–60 cm) for extractable cadmium and nickel. In general these trace metal increased with dosage. However, cadmium formed complexes with organic matter and nickel bound to iron and manganese oxides. Hence, the available fractions of these metals constituted a small proportion of the total content. The results obtained show a low risk of contamination due to the available fractions of these metals at sludges dosages of up to 100 t ha^βˆ’1^. Copyright Β© 2001 John Wiley & Sons, Ltd.

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