所属领域：
微藻光驱固碳合成生物燃料产品的关键技术研究
资源类型：
微藻培养
/ 光生物反应器
文献作者：
Kang, Juhyon; Wen, Zhiyou
文献发表年份：
2015
文献期刊：
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
文献摘要：The emissions of ammonia and CO2 from animal housing operations are a major challenge for concentrated animal feeding operations (CAFOs). A microalgae culture process was developed as a bio-scrubber to remove these gases. The green algae Scenedesmus dirnorphus was grown in a fiat panel photobioreactor aerated with ammonia- and CO2-laden aft, with ammonia mass loading being fixed at 42.4 ing/L.day and CO2 mass loading rates ranging from 0.64 to 5.49 g/L.clay. Within the range of the CO2 mass loading rate investigated, the ammonia gas removal rate was kept constant (41-42 mg/L.day) with a high removal efficiency (>95%) from the inlet gas. The majority (80-90%) of the ammonia was removed by algal cell assimilation, with a small portion (10-12%) being removed via liquid dissolution. The CO2 removal rate and removal efficiency, however, highly depended on the CO2 mass loading rate used. The highest CO2 removal rate (0.6 g/L.clay) was achieved at CO2 mass loading rate of 1.18 g/L.day, but the highest CO2 removal efficiency (78%) was achieved at the 0.64 g/L.clay CO2 mass loading rate. The cell biomass obtained contained 7-8% lipid, 55-60% protein, and 21-28% of carbohydrates. The amino acid profiles of the algal biomass are close to the ideal protein profiles for typical animal feeds, with a high ratio of essential amino acids. Collectively, the study shows that microalgae culture is an effective method for mitigation of ammonia and CO2 emissions from CAFOs, with the potential for use as an animal feed additive. (C) 2015 Elsevier By. All rights reserved.
文献类型： Article
文献语种： English
关键词： Ammonia; CO2; Microalgae; Nitrogen mass balance; Biomass composition
文献作者地址： [Kang, Juhyon; Wen, Zhiyou] Iowa State Univ, Dept Food Sci & Human Nutr, Ames, IA 50011 USA
