Combined systems for maximum substrate conversion

Abstract

In this section, a number of chapters have discussed various microbial processes for producing hydrogen from different substrates, either water, or some carbon compounds. Fermentative hydrogen production would appear to have some advantages, at least for nearer term application. For example, high volumetric rates of hydrogen production from a number of waste streams can already be demonstrated over long periods of time on the pilot scale using mixed cultures and nonsterile conditions. This is possible since known, relatively reactor technology can be used, and since bioprocess parameters and controls are relatively well understood.