Small-Scale Biogas Publications
A worksheet to facilitate preliminary planning for a biogas plant on a small farm.
Detailed CAD drawings for improved version of pilot biogas plant developed at WSU.
Journal of Water Environment Research 81:4.
WSU Invention Disclosure.
Usama Zaher, Dae-Yeol Cheong, Binxin Wu, and Shulin Chen, June 2007. A literature review of current digester technologies formed the framework for designing a bench scale study of a high solids anaerobic digestion (HSAD) system. The study shows that significant improvements in methane production can be attained while decreasing capital costs for facilities. A new digester design is proposed that will optimize methane from organic food and green waste digestion, while recovering nutrients from the digestate.
Liao W., C. Frear and S. Chen, June 2007. This project compiled a literature search for biomass chemical characterization and conducted supplemental laboratory study of forty two feedstocks for 33 parameters such as dry matter, COD, carbohydrates, lipids, elemental and mineral matter, and standard properties such as protein, fiber, pH, etc. A follow-on report will group similar feedstocks, assess potential energy conversion technologies and conduct an economic analysis of feedstock collection and energy production.
A presentation on applications of small-scale biogas plants in India.
Craig Frear, Bingcheng Zhao, Guobin Fu, Michael Richardson, Shulin Chen, and Mark Fuchs, December 2005. A biomass inventory and bioenergy assessment of forty five organic resource types across Washington was completed, producing this report and a database with GIS maps (http://www.pacificbiomass.org). Annual production of over 16.4 million tons of underutilized bone dry biomass was found, capable of producing (either by combustion or anaerobic digestion) over 15.5 billion kWh of electrical energy.