https://scholars.lib.ntu.edu.tw/handle/123456789/408400
標題: | Dispersed ozone flotation of Chlorella vulgaris | 作者: | Cheng Y.-L. Juang Y.-C. Liao G.-Y. Ho S.-H. Yeh K.-L. Chen C.-Y. Chang J.-S. Liu J.-C. Lee D.-J. |
關鍵字: | Algae;Algogenic organic matters;Flotation;Harvesting;Ozone | 公開日期: | 2010 | 卷: | 101 | 期: | 23 | 起(迄)頁: | 9092-9096 | 來源出版物: | Bioresource Technology | 摘要: | Flotation separation of Chlorella vulgaris, a species with excellent potential for CO2 capture and lipid production, was studied using dispersed ozone gas. Pure oxygen aeration did not yield flotation. Conversely, applying ozone effectively separation algae from broth through flotation. The ozone dose applied for sufficient algal flotation is <0.05mg/g biomass, much lower than those used in practical drinking waterworks (0.1-0.3mg/g suspended solids). Main products, lipid C16:0, was effectively collected in the flotage phase. The algae removal rate, surface charge, and hydrophobicity of algal cells, and proteins and polysaccharides contents of algogenic organic matter (AOM) were determined. Certain quantities of proteins were present in the cultivated algal suspension, hence, minimal quantity of ozone was required to release intracellular proteins as surfactants to lead to effective flotation. ? 2010 Elsevier Ltd. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/408400 | ISSN: | 09608524 | DOI: | 10.1016/j.biortech.2010.07.016 |
顯示於: | 化學工程學系 |
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