Performance and community structure dynamics of microbial electrolysis cells operated on multiple complex feedstocks.

ABSTRACT:

Background

Microbial electrolysis is a promising technology for converting aqueous wastes into hydrogen. However, substrate adaptability is an important feature, seldom documented in microbial electrolysis cells (MECs). In addition, the correlation between substrate composition and community structure has not been well established. This study used an MEC capable of producing over 10 L/L-day of hydrogen from a switchgrass-derived bio-oil aqueous phase and investigated four additional substrates, tested in sequence on a mature biofilm. The additional substrates included a red oak-derived bio-oil aqueous phase, a corn stover fermentation product, a mixture of phenol and acetate, and acetate alone.

Results

The MECs fed with the corn stover fermentation product resulted in the hi

SUBMITTER: Satinover SJ 

PROVIDER: S-EPMC7552531 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature