Efficient anaerobic digestion of whole microalgae and lipid-extracted microalgae residues for methane energy production

文献类型： 外文期刊

第一作者： Zhao, Baisuo

作者： Zhao, Baisuo;Ma, Jingwei;Zhao, Quanbao;Chen, Shulin;Frear, Craig;Laurens, Lieve;Jarvis, Eric;Zhao, Baisuo

作者机构：

关键词： Anaerobic digestion;Microalgae;Lipid-extracted microalgae residues;Methane production

期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：9.642； 五年影响因子：9.237 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： The primary aim of this study was to completely investigate extensive biological methane potential (BMP) on both whole microalgae and its lipid-extracted biomass residues with various degrees of biomass pretreatment. Specific methane productivities (SMP) under batch conditions for non-lipid extracted biomass were better than lipid-extracted biomass residues and exhibited no signs of ammonia or carbon/ nitrogen (C/N) ratio inhibition when digested at high I/S ratio (I/S ratioP1.0). SMP for suitably extracted biomass ranged from 0.30 to 0.38 L CH_4/g VS (volatile solids). For both whole and lipid-extracted biomass, overall organic conversion ranged from 59.33 to 78.50 as a measure of %VS reduction with greater percentage biodegradability in general found within the lipid-extracted biomass. Higher production levels correlated to lipid content with a linear relationship between SMP and ash-free lipid content being developed at a R~2 of 0.814.

分类号： Q

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