Review on the production of biohydrogen using green algae chlamydomonas reinhardtii by biophotolysis / Danial Azim Che Aziz

The purpose of this study is to review the parameters affecting H2 production by green algae through biophotolysis. The parameters investigated were the photobiorector, light intensities, pH and nutrients deprivation. The utilisation of Sartorius photobioreactor allowed a more flexible and easy control of process parameters. The intensities of light during pre-growth and H2 production phase plays a major role in the net total H2 produced. The optimum pH for hydrogen production by biophotolysis of green algae is found to be at 7.7. New studies on nutrient deprivation has shown the ability to significantly increase H2 production, especially under potassium deprived conditions.