کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1513024 1511206 2012 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of the Light Regime and Phototrophic Conditions on Growth of the H2-producing Green Alga Chlamydomonas Reinhardtii
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
پیش نمایش صفحه اول مقاله
Effect of the Light Regime and Phototrophic Conditions on Growth of the H2-producing Green Alga Chlamydomonas Reinhardtii
چکیده انگلیسی
Development of the capacity to produce hydrogen economically from renewable energy resources is of critical importance to the future viability of that fuel. The inexpensive and widely available green alga Chlamydomonas reinhardtii has the ability to photosynthetically synthesise molecular hydrogen. Green algal hydrogen production does not generate any toxic or polluting bi-products and could potentially offer value-added products derived from algal biomass. The growth of dense and healthy algal biomass is a vital requirement for efficient hydrogen production. Algal cell density is principally limited by the illumination conditions of the algal culture and by the availability of key nutrients, including the sources of carbon, nitrogen, sulphur and phosphorus. In this study, the effect of different light regimes and carbon dioxide feeds on Chlamydomonas reinhardtii growth were investigated. The objective was to increasing the algal growth rate and the cell density, leading to enhanced biohydrogen production. State-of-the art photobioreactors were used to grow algal cultures, and to measure the pH and optical density of those cultures. Under mixotrophic growth conditions, using both acetate and carbon dioxide, increasing the carbon dioxide feed rate increased the optical density of the culture but reduced the growth rate. Under autotrophic growth conditions, with carbon dioxide as the only carbon source, a carbon dioxide feed with a partial pressure of circa 11% was determined to optimise both the algal growth rate and the optical density.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy Procedia - Volume 29, 2012, Pages 710-719
نویسندگان
, , , ,