Photoinhibition of Algal Photobioreactor by Intense Light

Abstract Algal photobioreactor is a translucent reactor equipped with media supply installation and gas emissions to cultivate microalgae with CO2. Alga as an autotroph organism, growth mechanism following photosynthesis system which use light exposure to develop and growth the algae cells. There are abiotic, such as light, and biotic factors. This study analyses the performance of Chlorella sp. within intense light intensity (6, 12, 18, and 24 hour) variable with using UV fluorescence. The environment condition and growth rate were analysed of microalgae in the photobioreactor. R reactor control have reducing performance to remove phosphate concentration. Nevertheless, is not clearly explain the direct connection between nutrient and light intensity. Algal growth influenced by the intense of light intensity (hours exposure), and likely will affect to nutrient concentration in the photobioreactor. Light intensities in this research is not directly affect to algal biomass production, while the light intensities might be low to enhance the biomass.