Process Analysis of Alkaline Flocculation Harvesting for Chaetoceros muelleri and Scenedesmus quadricauda

doi:10.1007/s12155-015-9712-0

GIEC OpenIR > 中国科学院广州能源研究所

	Process Analysis of Alkaline Flocculation Harvesting for Chaetoceros muelleri and Scenedesmus quadricauda
	Huo, Shuhao 1,2,3,4; Wang, Zhongming2,3 ; Zhu, Shunni2,3 ; Cui, Fengjie 1; Zou, Bin 1; Wang, Feng 1; Yuan, Zhenhong2,3 ; Dong, Renjie 4; Zhao, Pengxiang 5
	2016-06-01
发表期刊	BIOENERGY RESEARCH
卷号	9 期号:2 页码:682-690
摘要	Alkaline flocculation could be an attractive microalgae harvesting method, because it is low-cost, low energy consumption, and non-toxic to microalgal cells, and the high pH effectively sterilizes the microalgal biomass as well as the process water. In this paper, the mechanism of alkaline flocculation process and the difference between the two strains marine diatom Chaetoceros muelleri #862 and freshwater algae Scenedesmus quadricauda #507 were analyzed. The particle size of C. muelleri #862 cells increased linearly with the increasing pH value which increased dramatically by nearly fivefolds after alkaline flocculation. When pH was below 10.5, the absolute value of zeta potential on the surface of C. muelleri #862 increased rapidly, and also the conductivity of the solution declined quickly. The alkaline flocculation of C. muelleri #862 was mainly attributed to the production of Mg(OH)(2) rather than calcium phosphate or calcium hydroxide. For the strain S. quadricauda #507, the cells still existed integrally as normal cells after alkaline flocculation. Firstly, with the increasing of pH in the solution, the absolute value of zeta potential had not declined. When pH was around 10.8, the absolute value of zeta potential had declined abruptly and the solution conductivity was increasing all the time. The cell wall of S. quadricauda #507 with the high content of cellulose I alpha and low crystallization degree was good for the next step of saccharification or oil extraction.
文章类型	Article
关键词	Microalgae Harvesting Alkaline Flocculation Mechanism Characterization Techniques
WOS标题词	Science & Technology ; Technology ; Life Sciences & Biomedicine
DOI	10.1007/s12155-015-9712-0
研究领域[WOS]	Energy & Fuels ; Environmental Sciences & Ecology
关键词[WOS]	ALGOGENIC ORGANIC-MATTER ; ALGAL FLOCCULATION ; FLUIDIZED-BED ; PH INCREASE ; MAGNESIUM ; MICROALGAE ; FLOTATION ; CELLULOSE ; REMOVAL ; IMPACT
收录类别	SCI
语种	英语
WOS类目	Energy & Fuels ; Environmental Sciences
WOS记录号	WOS:000376282600025
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/11442
专题	中国科学院广州能源研究所
作者单位	1.Jiangsu Univ, Sch Food & Biol Engn, Zhenjiang 212013, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 3.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China 4.China Agr Univ, Coll Engn, Beijing 100083, Peoples R China 5.State Grid Energy Conservat Serv Ltd, Beijing Biomass Energy Technol Ctr, Beijing 100053, Peoples R China
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Huo, Shuhao,Wang, Zhongming,Zhu, Shunni,et al. Process Analysis of Alkaline Flocculation Harvesting for Chaetoceros muelleri and Scenedesmus quadricauda[J]. BIOENERGY RESEARCH,2016,9(2):682-690.
APA	Huo, Shuhao.,Wang, Zhongming.,Zhu, Shunni.,Cui, Fengjie.,Zou, Bin.,...&Zhao, Pengxiang.(2016).Process Analysis of Alkaline Flocculation Harvesting for Chaetoceros muelleri and Scenedesmus quadricauda.BIOENERGY RESEARCH,9(2),682-690.
MLA	Huo, Shuhao,et al."Process Analysis of Alkaline Flocculation Harvesting for Chaetoceros muelleri and Scenedesmus quadricauda".BIOENERGY RESEARCH 9.2(2016):682-690.