Effect of Light Intensity on Growth of Nannochloropsis sp.

• Main Authors: Ya-Ling Hong, 洪雅玲
• Other Authors: Shi-Zong Yu
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/49672426358925984766

碩士 === 大葉大學 === 工學院碩士在職專班 === 102 === The effect of light intensity on the batch growth of Nannochloropsis sp.was investigated in this study. The Haldane model for growth of Nannochloropsis sp.was established for growth simulation using volumetric productivity (g/l/d) and area productivity (g/m2/d) as criterions to evaluate cultivation performance at different biomass concentrations and pond depths. The results are shown below: 1. The highest biomass concentration and specific growth rate were obtained at the light intensity of 12000 Lux. 2. The Haldane model for light intensity on growth of Nannochloropsis sp.was established. The parameter of maximum specific growth rate was estimated to be 0.53hr-1, the saturation constant was 61000 Lux and the inhibition constant was 1900 Lux. 3. Based on the simulation results, the highest volumetric productivity of Nannochloropsis sp.was obtained with the cultivation condition at the light intensity of 12000 Lux, the concentration of 1.0 g/L and the depth of 2 cm. 4. Based on the simulation results, the highest area productivity of Nannochloropsis sp.was obtained with the cultivation condition at the light intensity of 30000 Lux, the concentration of 1.0 g/L and the depth of 30 cm.