Harvesting microalgal biomass using magnesium coagulation-dissolved air flotation
文献类型：期刊论文
| 作者 | Zhang, Xuezhi1; Wang, Lan1; Sommerfeld, Milton2; Hu, Qiang1 |
| 刊名 | BIOMASS & BIOENERGY
 |
| 出版日期 | 2016-10-01 |
| 卷号 | 93页码:43-49 |
| ISSN号 | 0961-9534 |
| 关键词 | Microalgal harvesting Flotation Medium recycling Coagulant recovery Biomass purification |
| 英文摘要 | Coagulation with magnesium was found to be more effective for harvesting microalgae Chlorella zofin-giensis with dissolved air flotation (DAF) than the use of Fe3+, Al3+ or chitosan, and the required coagulant dosage was in the order Mg2+ < chitosan < Al3+ < Fe3+. The Mg2+ dosage required depended on the growth phases and culture medium characteristics. An early exponential culture required the highest Mg2+ dosage (226 mg g(-1)), while a late stationary culture required the lowest dosage (36 mg g(-1)). HPO42- and CO32- in the culture medium competed with the microalgal cells for Mg2+ and increased the Mg2+ dosage necessary. No Mg2+ addition was required to harvest the freshwater microalgae Scenedesmus dimorphus grown in a pond with tap water with a high Mg2+ concentration or the marine microalgae Nannochloropsis sp. The critical coagulation pH ranged between 10.8 and 11.8, with a lower pH requirement at a higher Mg2+ concentration. Magnesium hydroxide precipitated with the harvested biomass; however, over 99.5% of the precipitated Mg2+ was recovered by washing the biomass with 0.1 M HCl. Microalgal harvesting with Mg2+ did not introduce extrinsic coagulant; thus, neither the biomass nor the medium was contaminated. (C) 2016 Published by Elsevier Ltd. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine ; Technology |
| 类目[WOS] | Agricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels |
| 研究领域[WOS] | Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels |
| 关键词[WOS] | CHLORELLA-VULGARIS ; INDUCED FLOCCULATION ; ORGANIC-MATTER ; WASTE-WATER ; PH ; ALGAE ; SEDIMENTATION ; BIODIESEL ; OPTIONS ; REUSE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000382541000007 |
| 源URL | [http://ir.ihb.ac.cn/handle/342005/28339]  |
| 专题 | 水生生物研究所_藻类生物学及应用研究中心_学位论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China 2.Arizona State Univ, Arizona Ctr Algae Technol & Innovat, Polytech Campus, Mesa, AZ 85212 USA |
| 推荐引用方式 GB/T 7714 | Zhang, Xuezhi,Wang, Lan,Sommerfeld, Milton,et al. Harvesting microalgal biomass using magnesium coagulation-dissolved air flotation[J]. BIOMASS & BIOENERGY,2016,93:43-49. |
| APA | Zhang, Xuezhi,Wang, Lan,Sommerfeld, Milton,&Hu, Qiang.(2016).Harvesting microalgal biomass using magnesium coagulation-dissolved air flotation.BIOMASS & BIOENERGY,93,43-49. |
| MLA | Zhang, Xuezhi,et al."Harvesting microalgal biomass using magnesium coagulation-dissolved air flotation".BIOMASS & BIOENERGY 93(2016):43-49. |
入库方式： OAI收割
来源：水生生物研究所
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