Hydrogen sulfide (H2S) produced during the anaerobic digestion process at wastewater treatment plants is corrosive, toxic, and noxious. Tire derived rubber particles (TDRP™) and other rubber material (ORM™) are recycled waste rubber products distributed by Envirotech
Systems, Inc (Lawton, IA). They were previously found to be effective at removing H2S from biogas. A scrubber system utilizing TDRP™ and ORM™ was tested at the Ames Water Pollution Control Facility (WPCF) to determine operational conditions that would maximize the amount
of H2S removed from biogas in order to allow for systematic sizing of biogas scrubbers. Results showed that longer contact times, compaction, and higher inlet H2S concentrations improved the amount of H2S that was adsorbed, with an average of 1-3 mg H2S
per gram of media removed. The effect of temperature was not found to be significant. Additionally, in excess of 90% siloxane reduction was observed from the biogas.
Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed. WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.