Frear

Anaerobic Digester System Enterprise Budget Calculator

Astill, G., R. Shumway, and C. Frear. 2016. This tool calculates the economic value of investment under a variety of technology and price scenarios for an AD system. The budget calculator includes options for anaerobic digestion, codigestion, compressed natural gas, combined heat and power, environmental credits, fiber solids separation, phosphorous solids separation, struvite precipitation, ammonium sulfate […]

The Dairy Manure Biorefinery

Graphic poster depicting the biorefinery concept. Developed by Nick Kennedy, Jingwei Ma, Craig Frear, Georgine Yorgey, Tara Zimmerman, Chad Kruger, and Jim Jensen.

Dairy Waste Biorefinery

Kennedy, N., C. Frear, M. Garcia-Perez, C. Kruger, and S. Chen. 2013. Concept illustration and description.

Organic Waste Biorefinery

Kennedy, N., C. Frear, M. Garcia-Perez, C. Kruger, and S. Chen. 2013. Concept illustration and description.