The green microalga Chlamydomonas reinhardtii is proposed to produce hydrogen in a low-cost system using the solar
radiation in Yucatan, Mexico. A two-step process is necessary with a closed photobioreactor, in which the algae are
firstly growth and then induced for hydrogen generation. Preliminary results are presented in this work with some
planning for the future. Different culture broths, temperatures and light intensities were tested for biomass and hydrogen
production in laboratory conditions. The first experiments in external conditions with solar radiation and without
temperature control have been performed, showing the potential of this technique at larger scales. However, some
additional work must be done in order to optimize the culture maintenance, particularly in relation with the temperature
control, the light radiation and the carbon dioxide supply, with the idea of keeping an economic production.
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