Fermentative hydrogen production from lipid-extracted microalgal biomass residues
Fermentative hydrogen production from lipid-extracted microalgal biomass residues
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DOI：
10.1016/j.apenergy.2010.09.009
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发表时间：
2011-10
期刊：
影响因子：
11.2
通讯作者：
Zhi-man Yang;R. Guo;Xiaohui Xu;Xiao-lei Fan;Sheng-jun Luo
中科院分区：
文献类型：
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作者：
Zhi-man Yang;R. Guo;Xiaohui Xu;Xiao-lei Fan;Sheng-jun Luo
利用油脂提取的微藻生物质残渣转化为氢气对可再生能源生产和微藻生物柴油产业的可持续发展具有双重作用。研究了厌氧发酵将LMBR转化为氢气的工艺。采用间歇试验方法，分别考察了接种量(酸、碱、热、氯仿)、初始pH值(5.0~7.0)、接种量(挥发性悬浮物)为0.59~2.94gVSS/L(VSS)、底物浓度为4.5~45gVS/L(挥发性固形物)的处理效果。结果表明，以处理后的厌氧消化污泥为接种物，在初始pH为6.0~6.5的条件下，发酵浓度为36gVS/L的LMBR产氢效果最好。乙酸盐、丙酸和丁酸是LMBRs转化为氢气的主要发酵副产物。
The conversion of lipid-extracted microalgal biomass residues (LMBRs) into hydrogen plays the dual role in renewable energy production and sustainable development of microalgal biodiesel industry. An anaerobic fermentation process to covert LMBRs into hydrogen was investigated in this work. Using batch experiments, the effects of pretreatment of inoculum (by acid, base, heat, and chloroform, respectively), initial pH (5.0–7.0), inoculum concentrations at 0.59–2.94gVSS/l (volatile suspended solids, VSS) and substrate concentrations at 4.5–45gVS/l (volatile solids, VS) were investigated, respectively. The results showed that the most effective hydrogen production was obtained from fermentation of LMBRs with a concentration of 36gVS/l at the initial pH 6.0–6.5 using the heat-treated anaerobic digested sludge as inoculum. Acetate, propionate and butyrate were the main fermentation byproducts in the conversion of LMBRs into hydrogen.