Biochar (Jun 2022)
Unraveling natural aging-induced properties change of sludge-derived hydrochar and enhanced cadmium sorption site heterogeneity
Abstract
Highlights Aged hydrochar undergoes surface oxidation, mineral complexation, and leaching. Ash content and SSA play the essential role in enhancing Cd sorption and site heterogeneity. Aging degree and sorption behavior differ markedly between pyrochar and hydrochar.
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