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题名: Algal biofuel production coupled bioremediation of biomass power plant wastes based on Chlorella sp C2 cultivation
作者: Chen, Hui1; Wang, Jie1, 2; Zheng, Yanli1, 2; Zhan, Jiao1; He, Chenliu1; Wang, Qiang3
关键词: Biomass power plant ash ; Biofuel ; Biological DeNOx ; Chlorella sp C2 ; CO2 bioremediation
刊名: APPLIED ENERGY
发表日期: 2018-02-01
DOI: 10.1016/j.apenergy.2017.11.058
卷: 211, 页:296-305
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Technology
类目[WOS]: Energy & Fuels ; Engineering, Chemical
研究领域[WOS]: Energy & Fuels ; Engineering
英文摘要: Microalgae have reported to be one of the most promising feedstock for biofuel production. However, microalgal cultivation for biofuel production is a costly process due to the large amounts of water, inorganic nutrients (mainly N and phosphate (P)), and CO2 needed. In this study, we evaluated whether the nutrient-rich ash and flue gas generated in biomass power plants could serve as a nutrient source for Chlorella sp. C2 cultivation to produce biolipids in a cost-efficient manner. When ash was incorporated in the culture medium and photo-synthesis was enhanced by CO2 from flue gas, Chlorella cultures produced a lipid productivity of 99.11 mg L-1 d(-1) and a biomass productivity of 0.31 g L-1 d(-1), which are 39% and 35% more than the control cultures grown in BG11 medium. Additionally, the cultures reduced the nitrogen oxide (NOx) present in the flue gas and sequestered CO2, with a maximum ash denutrition rate of 13.33 g L-1 d(-1), a NOx reduction (DeNOx) efficiency of similar to 100%, and a CO2 sequestration rate of 0.46 g L-1 d(-1). The residual medium was almost nutrient-free and suitable for recycling for continuous microalgal cultivation or farmland watering, or safely disposed off. Based on these results, we propose a technical strategy for biomass power plants in which the industrial wastes released during power generation nourish the microorganisms used to produce biofuel. Implementation of this strategy would enable carbon negative bioenergy production and impart significant environmental benefits.
关键词[WOS]: INFORMATICS-BASED ANALYSIS ; BIOLOGICAL NOX REMOVAL ; INDUSTRIAL FLUE-GASES ; GREEN-ALGA ; BIODIESEL PRODUCTION ; ENERGY PRODUCTION ; LIPID-SYNTHESIS ; NITRIC-OXIDE ; MICROALGAE ; COMBUSTION
语种: 英语
项目资助者: National Natural Science Foundation of China(31770128 ; Hubei Provincial Natural Science Foundation of China(2017CFA021) ; State Key Laboratory of Freshwater Ecology and Biotechnology(Y11901-1-F01) ; Science and Technology Service Network Initiative of the CAS(KFJ-SWSTS-163) ; 31700107)
WOS记录号: WOS:000425075600026
ISSN号: 0306-2619
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内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/50663
Appears in Collections:藻类生物学及应用研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Hubei, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
3.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, 7 South Donghu Rd, Wuhan 430072, Hubei, Peoples R China
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