Leaching of inorganic and organic matter from biomass and biochars under various conditions: equilibrium, kinetics and implications
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This thesis investigates into the leaching phenomena in various biomass thermochemical processes. For biomass water leaching, the leachate is acidic and can interact with biomass. A method has therefore been devised for quantifying water-soluble inorganic species in biomass. For biochar leaching, partial steam gasification of biochar at low conversions is a good strategy to facilitate nutrients recycling. For biomass leaching in hot-compressed water, substantial leaching of inorganic species takes place during the hydrolysis of saccharides.
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Leaching Characteristics of Organic and Inorganic Matter from Biomass by Water: Differences between Batch and Semi-continuous OperationsLiaw, Sui Boon; Wu, Hongwei (2013)Over 30% and ~2% (on a carbon basis) organic matter can be leached from mallee leaf and wood by water, respectively, producing acidic leachates containing organic acids. As a result, there are significant differences in ...
Lievens, C.; Mourant, D.; Hu, X.; Wang, Y.; Wu, L.; Rossiter, A.; Gunawan, Richard; He, M.; Li, Chun-Zhu (2018)Biochar is widely considered as a soil amendment. This study aims to investigate the leaching of macronutrients (K, Mg and Ca) and organics from biochars produced from mallee biomass (wood, leaf, bark) in a fluidised-bed ...
Yip, Kong; Li, Chun-Zhu; Wu, Hongwei (2010)This study reports the removal of inorganic species by water leaching from a Western Australia mallee biomass and its biochars. The study focuses on the removal of AAEM species (Na, K, Ca and Mg) and other nutrient elements ...