Wheat-Straw and Chickpea-Straw Alkaline Pretreatment to Produce Adsorption Materials for Wastewater Cleaning

D. Politi, P. Fradelos & D. Sidiras
The feasibility of using agricultural wastes (e.g. straws) and wood industry wastes (e.g. sawdust) to remove basic dyes from water and wastewater is widely investigated by various researchers. In this work, wheat and chickpea straw were used as absorbents after alkaline pretreatment to enhance their adsorption properties. Alkaline pretreatment successfully delignifies biomass by disrupting the ester bonds cross­linking lignin and xylan, resulting in cellulose enriched fractions. The use of dilute alkaline solution for the pretreatment...