Factors that affect bacterial ecology in hydrogen

Authors: E A F Vasconcelos R C Leitão S T Santaella

Publish Date: 2016/05/26

Volume: 9, Issue: 4, Pages: 1260-1271

PDF Link

Abstract

Hydrogen has been studied as an alternative to traditional energy sources it is a clean and renewable fuel that on combustion generates only water as a byproduct Biological production of hydrogen can occur either via photosynthesis or fermentation The latter is technically simple and can convert substrates like organic matter present in wastewater into a renewable energy source Microorganisms belonging to the domains Archaea and Bacteria are responsible for the conversion of various carbon sources to biogas including hydrogen and methane It is important to determine the microorganisms responsible for such transformations as they are the major players of the process Studying the bacterial diversity population structure and processes that modify these communities leads to a better understanding of their ecological functions and productivity The environmental conditions within an anaerobic hydrogen reactor can exert a selective pressure on the community thereby affecting the population structure diversity and heterogeneity Combination of appropriate operational parameters and ecological factors could lead to the development of effective bioprocesses to maximize hydrogen yield Therefore the objective of this paper is to present a review on bacterial ecology in anaerobic hydrogen reactors and the factors that can affect bacterial diversityThis work was carried out with the support of the Brazilian Agricultural Research Corporation Embrapa the Brazilian National Council for Scientific and Technological Development CNPq project no 473352/20117 and the Ceará State Foundation for the Support of Scientific and Technological Development FUNCAP project BMD 008/0008/003450101/12

Keywords: