Full-scale Digester Micro-Aeration Pilot Study to Improve Biogas Quality for Energy Recovery

摘要

Biogas generated from anaerobic digestion typically requires gas conditioning before it is used to generate energy. Elevated concentrations of hydrogen sulfide in the biogas is often a limitation for downstream processing of the biogas. A full-scale pilot test using micro-aeration was undertaken and confirmed that this new process-integrated technology has potential using minimum plant upgrading while contributing to the sustainability and economic efficiency of the energy recovery process of waste sludge digestion at wastewater treatment facilities.