Effect of biochar and activated carbon on production of methane and odorous volatile sulfur compounds in fed-batch anaerobic digestion of poultry slaughterhouse sludge - Navid Farahmandzad; Saravanan R. Shanmugam; Shima Rezaei; Grace Booher; Edward T. Drabold; Nitesh Kasera; Sushil Adhikari; Brendan Higgins (Journal of Environmental Chemical Engineering, 2026)