Step washing: A modified pretreatment approach for industrial applications to improve chemical composition of agricultural residues

Parametric and kinetic study of washing pretreatment for K and Cl removal from rice husk

“…There are different water washing techniques such as spraying, flushing, and soaking [ 11 ]. Washing biomass in multiple steps has also been studied recently [ 12 ]. The water washing technology of biomass can leach a substantial amount of K, Cl, and S [ 11 ].…”