Ullman Publications

3 Publications

Anaerobic digestion effluents and processes: the basics

S. M. Mitchell, N. Kennedy, J. Ma, G. Yorgey, C. Kruger,  J. L. Ullman, C. Frear.  Sept 2015. WSU Fact Sheet FS171E. This fact sheet reviews the basic elements of anaerobic digestion and the process used by digesters, including the types of digesters, biochemistry of influents and effluents, laboratory evaluations and optimizing anaerobic digesting through modeling. This fact sheet is part of the AD Systems Series.

The effects of the antibiotics ampicillin, florfenicol, sulfamethazine, and tylosin on biogas production and their degradation efficiency during anaerobic digestion

Mitchell, S., J. Ullman, A. Teel, R. Watts, C. Frear.  Bioresource Technology Volume 149, December 2013, Pages 244–252.

Antibiotics in Animal Manure – Implications to Sustainable Agriculture

Poster presentation – BIOAg Research Symposium 2008.