Cadmium adsorption as influenced by poultry manure addition in soils of South-Western Nigeria

Soil contamination with heavy metals is of great concern worldwide because of its negative effects on human health and environment. The objective of this study was to evaluate the influence of poultry manure on cadmium (Cd) adsorption characteristics in soils from ten different land uses and to dete...

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Bibliographic Details
Published in:Archiv für Acker- und Pflanzenbau und Bodenkunde 2017-07, Vol.63 (8), p.1070-1081
Main Authors: Shokalu, A. O., Adetunji, M. T., Bodunde, J. G., Akintoye, H. A., Azeez, J. O.
Format: Article
Language:English
Subjects:
Adsorption
adsorption capacity
animal manure
Cadmium
Composting
Contamination
Heavy metals
Manures
Organic carbon
pH effects
Poultry
Poultry manure
Sediment pollution
Soil contamination
soil organic matter
Soil pollution
Soil properties
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Summary:Soil contamination with heavy metals is of great concern worldwide because of its negative effects on human health and environment. The objective of this study was to evaluate the influence of poultry manure on cadmium (Cd) adsorption characteristics in soils from ten different land uses and to determine the effects of Cd adsorption on soil properties. Laboratory experiments were carried out using Cd concentrations ranging from 0 to 160 mg Cd L −1 and poultry manure rates ranging from 0 to 8% w/w basis. Results showed that all the soils exhibited varying capacity to adsorb Cd with values ranging from 28.78 to 130.2 mgkg −1 ; 126.2 to 153.5 mgkg −1 and 126.2 to 156.1 mgkg −1 for 0%, 4% and 8% poultry manure at 160 mgkg −1 initial Cd concentrations, respectively. Lowest Cd adsorbed (28.78 mgkg −1 ) was recorded in samples from 6 months fallow and highest (156.1 mgkg −1 ) from vegetable field. On the average, capacity to adsorb Cd was 72.1%, 99.7% and 95.3% with 0%, 4% and 8% applied poultry manure, respectively. Organic carbon, CEC, pH were significantly correlated with Cd adsorption. Poultry manure use will increase Cd adsorption and decrease Cd in the environment.
ISSN:0365-0340
1476-3567
DOI:10.1080/03650340.2016.1261118