| 聚球藻自相发酵产氢研究 |
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| 引用本文： | 程军,刘亚琼,张明辉,周俊虎,岑可法.聚球藻自相发酵产氢研究[J].能源工程,2014(4):19-22. |
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| 作者姓名： | 程军 刘亚琼 张明辉 周俊虎 岑可法 |
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| 作者单位： | 浙江大学 能源清洁利用国家重点实验室,浙江 杭州,310027 |
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| 基金项目： | 国家国际科技合作专项(2012DFG61770)；教育部博士点基金项目(20110101110021)；广西科技计划项目 |
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| 摘 要： | 研究了培养基的pH值、盐度和氮源等对聚球藻生长及自相发酵产氢的影响。发现聚球藻在弱碱性时(pH=7.5~8)不能正常生长,当pH值高于8.5时藻才能实现富集,当碱性进一步增强到pH值9.5时藻生长状态最佳。收获藻液置于黑暗厌氧条件下利用自身氢酶进行自相发酵产氢,单位干重的产氢量达到22.25mL/g。聚球藻无法适应高盐度环境,在盐度较低情况下(0.154 mmol/L)才能迅速生长,得到自发酵产氢最大值为25.68 mL/g。加入无机氮源能明显提高聚球藻的生长速率及生物质产量,但对随后产氢效果有抑制作用。
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| 关 键 词： | 聚球藻 发酵 产氢 pH值 盐度 氮源 |
Hydrogen production from cyanobacteria synechococcus by auto-fermentation |
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| Affiliation: | CHENG Jun, LIU Ya-qiong,ZHANG Ming-hui, et al (State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China) |
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| Abstract: | The effect of pH, salinity（NaCl）,and nitrogen source（NaNO3 ） on the hydrogen production from synecho -coccus fermentation was researched .It was found that synechococcus can not adapt to the environment with alkales -cence （pH =7.5 ~8 ） or high salinity.Alkalic condition （pH =9.5） and low salinity（NaCl concentration was 0. 154mmol /L） were helpful for growth of synechococcus which achieved highest hydrogen production of 22.25 mL/g and 25.68 mL/g respectly.High cell density were harvested when nitrogen source were added but hydrogen production de -clined at the subsequent fermentation . |
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| Keywords: | synechococcus fermentation hydrogen pH salinity nitrogen source |
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