EGEE 439
Alternative Fuels from Biomass Sources

12.6 Summary and Final Tasks

12.6 Summary and Final Tasks


This last lesson covered topics that are practical, such as anaerobic digestion (it is part of digestion), and also topics that are more research-oriented, such as syngas fermentation and microbial fuel cells. The best application for anaerobic digestion is on farms, as a way to utilize waste from animals. Syngas fermentation could be a lower energy-intensive process that could make gasification/syngas fermentation less expensive than using FT synthesis. And, finally, microbial fuel cells are a unique fuel cell that can take advantage of bacteria to make electricity or clean up wastewater inexpensively.


Jian Shi1, Ruihong Zhang2, Wei Liao 3, Conly L. Hansen4, Yebo Li1, * 1. Department of Food, Agricultural, and Biological Engineering, The Ohio State University, 2. Department of Biological and Agricultural Engineering, University of California-Davis. 3. Department of Biosystems and Agricultural Engineering, Michigan State University, 4. Department of Nutrition and Food Sciences, Utah State University, BEEMS Module B7, Anaerobic Digestion, USDA Higher Education Challenger Program, 2009-38411-19761. Contact: Yebo Li,

Frigon and Guiot, 2010, Biofuels, Bioproducts & Biorefining, 4, 447-458.

On-Farm Anaerobic Digester Operator Handbook. M.C. Gould and M.F. Crook. 2010. Modified by D.M. Kirk. January 2010.

Hasan K. Atiyeh, Department of Biosystems and Agricultural Engineering,  Oklahoma State University, Syngas Fermentation, BEEMS Module N1, USDA Higher Education Challenger Program, 2009-38411-19761, Contact: Hasan K. Atiyeh,

Wilkins and Atiyeh. Current Opinion in Biotechnology 2011, 22:326–330.

Reminder - Complete all of the Lesson 12 tasks!

You have reached the end of Lesson 12! Double-check the Road Map on the Lesson 12 Overview page to make sure you have completed all of the activities listed there.


If there is anything in the lesson materials that you would like to comment on, or don't quite understand, please post your thoughts and/or questions to our Throughout the Course Questions & Comments discussion forum and/or set up an appointment for office hour. While you are there, feel free to post responses to your classmates if you are able to help.