Mixotrophic denitrification with Arundo donax straw and elemental sulfur in constructed wetlands: enhanced nitrogen removal, carbon-sulfur interactions, and greenhouse gas mitigation.
Surface flow constructed wetlands (SFCWs) treating low carbon-to-nitrogen ratio wastewater are often limited by insufficient electron donor availability, leading to inefficient denitrification and greenhouse gas emissions. This study evaluated mixotrophic SFCWs integrated with Arundo donax straw and elemental sulfur (S...