Mixed-acid fermentation is the core step of the MixAlco process, which
converts biomass in hydrocarbon fuels. In this work, Smith is the first
to sucessfully operate a large-scale ( 3000 gallon) pilot fermentation
at steady-state. From this experiences, he details challenges of
operation and the tools and techniques he developed that eventually lead
to sucessful operation. Based on the pilot fermentation work, Smith
designed two experiments to investigate the behavior and optimal
concentration of nitrogen in mixed-acid fermentation. A theme throughout
this work is the challange of previous methods and assumptions. In each
chapter, Smith builds on previous work, provides new insight, and
advances the art of mixed-acid fermentation. In addtion to his research
findings, Smith developed new experimental and analytical techniques,
refined old definitions, and added new ones. This is a must read for any
student, scholar, or engineer of mixed-acid fermentation.