20 research outputs found
Prolongation of H2 photoproduction by immobilized, sulfur-limited Chlamydomonas reinhardtii cultures
Two approaches to prolong the duration of hydrogen production by immobilized, sulfur-limited Chlamydomonas reinhardtii cells are examined. The results demonstrate that continuous H(2) photoproduction can occur for at least 90 days under constant flow of TAP medium containing micromolar sulfate concentrations. Furthermore, it is also possible to prolong the duration of H(2) production by cycling immobilized cells between minus and plus sulfate conditions. (C) 2008 Elsevier B.V. All rights reserved
Photobiological hydrogen production via immobilization: understanding the nature of the immobilization and investigation on various conventional photobioreactors
Role of the NiFe Hydrogenase Hya in Oxidative Stress Defense in Geobacter sulfurreducens
Improved biohydrogen production by immobilized cells of the green alga Tetraspora sp. CU2551 incubated under aerobic condition
Microalgal hydrogen production: prospects of an essential technology for a clean and sustainable energy economy
Perspectives and advances of biological H-2 production in microorganisms
The rapid development of clean fuels for the future is a critically important global challenge for two main reasons. First, new fuels are needed to supplement and ultimately replace depleting oil reserves. Second, fuels capable of zero CO2 emissions are needed to slow the impact of global warming. This review summarizes the development of solar powered bio-H-2 production processes based on the conversion of photosynthetic products by fermentative bacteria, as well as using photoheterotrophic and photoautrophic organisms. The use of advanced bioreactor systems and their potential and limitations in terms of process design, efficiency, and cost are also briefly reviewed