Feasibility of anaerobic digested corn stover as biosorbent for heavy metal

► Anaerobic digested corn stover was an effective adsorbent for heavy metal. ► Adsorption capacity of AD corn stover was respectively 83.3 and 50.0 mg/g for Cd2+ and Cu2+. ► Cellulose and lignin in the AD corn stover provided the adsorption sites.