Abstract
The method of measuring exchangeable cations as an approximation for cation exchange capacity was examined using a cow manure and green waste biochar. Both biochars were pre-treated by shaking with water over a range of times. Leachates were analysed, and the pre-treated biochars were then treated with two solutions (0.1M BaCl2 or 0.1M CsCl) to measure ion adsorption. Pre-treatment shaking had a significant effect on ion adsorption for both biochars. Ion adsorption for the green waste biochar was significantly increased with pre-treatment shaking, whereas it decreased for the cow manure biochar. Compulsive exchange of cations to determine the ability of a substrate to retain positively charged ions on its surface may not be an appropriate method for biochar.
| Original language | English |
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| Title of host publication | 19th World Congress of Soil Science, Soil Solutions for a Changing World |
| Editors | Robert Gilkes |
| Place of Publication | Bribane, Australia |
| Publisher | International Union of Soil Sciences |
| Pages | 20-23 |
| Number of pages | 4 |
| ISBN (Electronic) | 9780646537832 |
| Publication status | Published - 2010 |
| Event | World Congress of Soil Science - Brisbane, Australia, Australia Duration: 01 Aug 2010 → 06 Aug 2010 |
Conference
| Conference | World Congress of Soil Science |
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| Country/Territory | Australia |
| Period | 01/08/10 → 06/08/10 |