Evaluation of the Efficiency of Biogas Treatment for the Removal of Siloxanes

Biogas which originates from the anaerobic digestion of organic wastes, including residuals from wastewater, can contain pollutants such as siloxanes and hydrogen sulfide. This study focuses on the removal of siloxanes that may be present in biogas which must be cleaned for energy recovery. The study demonstrates that silica gel media, tested on biogas generated from anaerobic digestion (AD) of biosolids, is a potential, less costly alternative to granular activated carbon, a common media currently used to remove siloxanes. The study also provides information on analytical and sampling methods that worked well to characterize and quantify siloxanes, and on the nature of the siloxane compounds found in biogas. Published by WERF. 190 pages. Online PDF. (2013)

Originally funded as WERF project OWSO10C10.