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| Ippolito, J.A.; Strawn, D.G.; Scheckel, K.G.; Novak M, J; Ahmedna, M.; Niandou, M.A.S.. |
| Excessive copper concentrations in water systems can negatively impact biological systems. Because copper can form strong associations with organic functional groups, we examined the ability of biochar (a carbon-enriched organic bioenergy by-product) to sorb copper from solution. In a batch experiment, potassium hydroxide-steam activated pecan shell biochar was shaken for 24 hours in pH 6, 7, 8, or 9 buffered solutions containing various copper concentrations to identify effect of pH on biochar copper sorption. Afterwards, all biochar solids from the 24 hours shaking period were air-dried and then analyzed using X-ray absorption fine structure spectroscopy to determine solid-phase copper speciation. In a separate batch experiment, biochar was shaken... |
| Tipo: Article |
Palavras-chave: Soil quality. |
| Ano: 2011 |
URL: http://eprints.nwisrl.ars.usda.gov/1521/1/1483.pdf |
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