荆艳艳;周小楷;李芳;王震宁;张全国;

• 1:河南农业大学河南省生物质能源与纳米材料国际联合实验室

摘要(Abstract)：

为了探究pH值对白茅光合产氢体系产氢效果的影响，使用白茅生物质作为产氢原料，以产氢速率和产氢量为关键指标、以还原糖质量浓度和氧化还原电位(ORP)等为辅助指标研究pH值对白茅光合生物产氢的影响，分析几种指标的数据变化情况，提出pH值对白茅光合生物产氢的影响规律。结果表明，ORP呈现先降低后上升的趋势。当pH=8时，光合细菌对白茅降解的还原糖利用率较高，超过了94.8%;累计产氢量和产氢速率达到最大，分别为422 mL和8.08 mL/h, ORP达到最小值-465 mV。试验结束时各体系的pH值维持在5.3～5.5,中性和碱性环境下白茅光合生物产氢能力明显高于酸性环境下的产氢能力，但碱性过强又对产氢能力产生抑制作用。

关键词(KeyWords)： 环境工程学;pH值;光合生物制氢;白茅;生物质

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(52076068);; 河南省高校科技创新团队支持计划项目(20IRTSTHN006)

作者(Authors): 荆艳艳;周小楷;李芳;王震宁;张全国;

DOI: 10.13637/j.issn.1009-6094.2020.1792

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