Frequent monitoring of anaerobic digestion processes for pathogen destruction is both cost and time prohibitive. To evaluate surrogates for pathogens that are rapidly measured (approximately 24 hours), two semi-batch bench-scale anaerobic digesters were operated under mesophilic (36°C)
and thermophilic (53-55°C) conditions with a 15 day solids retention time. The concentrations of U.S. EPA regulated pathogens and surrogate organisms were measured at different time points throughout the project. Four series of experiments were performed, each using solids from a different
facility or in a different season. The levels and rates of inactivation of the surrogates were compared against those of the regulated pathogens. Results indicate that male-specific coliphages were a potential surrogate organisms for virus inactivation. None of the tested surrogate organisms
correlated well with helminth inactivation under the conditions studied.
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 These proceedings are not peer reviewed.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.