Volume No. 6 Issue No.: 3 Page No.: 415-423 Jan-Mar 2012

 

PRODUCTION OF HYDROGEN THROUGH BIOLOGICAL ROUTE FROM WASTE BIOMASS

 

Hema R.* and Pushpa Agrawal

Dr. M.G.R.Educational and Research Institute University, Chennai (INDIA)

 

Received on : August 25, 2011

 

ABSTRACT

 

Biohydrogen production plays a vital role in the development of hydrogen economy. One of the promising approaches is conversion from biomass, which is abundant, clean and renewable. In the current work, laboratory scale production of hydrogen using phototrophic purple non-sulphur bacteria Rhodobacter sphaeroides with different substrates and mixed cultures was investigated. The study mainly emphasized on assessing the potential of biological conversion of different substrates to hydrogen by studying various parameters like temperature, pH and cell density to achieve maximum hydrogen production. The optimum temperature for Rhodobacter sphaeroides was found to be 32°C and pH 7.0 - 7.5 for maximum production of hydrogen. Results of the batch tests depicted that Rhodobacter sphaeroides produced maximum amount of hydrogen 35% to 43% with a process efficiency hydrogen yield of 0.7-0.3 mol. H2 per kg of the substrate. However, the percentage yield of H2 was more with sucrose

 

Keywords : Hydrogen, Biomass, Photo fermentation, Rhodobacter sphaeroides, Mixed culture

 

 

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