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预处理方法对香蒲厌氧发酵联产H2-CH4效能的影响

杨 洋 夏天明 祝超伟 李鸣晓 魏自民 席北斗 贾 璇

杨 洋, 夏天明, 祝超伟, 李鸣晓, 魏自民, 席北斗, 贾 璇. 预处理方法对香蒲厌氧发酵联产H2-CH4效能的影响[J]. 环境科学研究, 2014, 27(2): 164-171.
引用本文: 杨 洋, 夏天明, 祝超伟, 李鸣晓, 魏自民, 席北斗, 贾 璇. 预处理方法对香蒲厌氧发酵联产H2-CH4效能的影响[J]. 环境科学研究, 2014, 27(2): 164-171.
YANG Yang, XIA Tian-ming, ZHU Chao-wei, LI Ming-xiao, WEI Zi-min, XI Bei-dou, JIA Xuan. Effect of Different Pre-Treatment on Hydrogen and Methane Coproduction during Typha Anaerobic Fermentation Process[J]. Research of Environmental Sciences, 2014, 27(2): 164-171.
Citation: YANG Yang, XIA Tian-ming, ZHU Chao-wei, LI Ming-xiao, WEI Zi-min, XI Bei-dou, JIA Xuan. Effect of Different Pre-Treatment on Hydrogen and Methane Coproduction during Typha Anaerobic Fermentation Process[J]. Research of Environmental Sciences, 2014, 27(2): 164-171.

预处理方法对香蒲厌氧发酵联产H2-CH4效能的影响

基金项目: 国家科技支撑计划项目(2012BAJ21B02)

Effect of Different Pre-Treatment on Hydrogen and Methane Coproduction during Typha Anaerobic Fermentation Process

  • 摘要: 通过厌氧发酵动力学分析、还原糖及其他代谢产物变化情况,结合香蒲微观结构解析,系统研究酸(HCl)、碱(NaOH)、酶(纤维素酶R-10)3种预处理对水生植物厌氧发酵联产H2-CH4的影响. 结果表明:香蒲分别经酸、碱、酶3种预处理后,厌氧发酵联产累积H2、CH4产量及含量均显著提高,c(HCl)、c(NaOH)均为1.0mol/L, w(纤维素酶R-10)(以底物计)为10mg/g时,预处理最佳. 其中1.0mol/L NaOH预处理香蒲效果最佳,φ(H2)(H2含量)达30.09%,累积产H2量(以香蒲干质量计)达11.39mL/g;φ(CH4)(CH4含量)最高达67.48%,累积产CH4量(以香蒲干质量计)达41.87mL/g;还原糖利用率达50.87%,sCOD(溶解性化学需氧量)利用率达66.17%. 纤维素酶预处理后香蒲产CH4能力显著提高,产CH4阶段φ(CH4)最高为71.39%,累积产CH4量达46.32mL/g,还原糖利用率达72.10%. 扫描电镜微观结构分析表明,碱预处理对香蒲纤维素结构破坏程度最大,可有效增加香蒲与微生物接触面积,有利于厌氧发酵联产H2-CH4工艺的快速启动和稳定运行.

     

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出版历程
  • 收稿日期:  2013-05-25
  • 修回日期:  2013-10-10
  • 刊出日期:  2014-02-25

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