Ce3+对厌氧产氢性能影响

Effect of Ce3+ on Hydrogen Generation by Anaerobic Digestion

DOI：10.3969/j.issn.1673-1689.2013.06.006

中文关键词: Ce3+ 氢气 厌氧消化 脱氢酶

英文关键词: Ce3+ hydrogen anaerobic digestion dehydrogenase enzyme

基金项目:国家“十二五”科技支撑项目(2012BAC18B01-2);江苏省科技支撑计划项目(BE2012615);中央高校基本科研业务费专项资金项目(JUSRP111A12)

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中文摘要:

研究添加稀土元素Ce3+对废水产氢的影响。结果表明,稀土元素对产氢具有hormesis效应,添加Ce3+质量浓度为0.1 mg/L时,产氢量最大,为123.2 mL/g,是对照的120.3%。反应结束后,添加0.1、0.05 mg/L组的VFA量较大,分别为4 511.8、4 420.3 mg/L,是对照的1.49和1.46倍。各组分的葡萄糖利用率在76.2%~92.1%。脱氢酶活呈现先增加后降低趋势,添加0.1 mg/L组最大酶活为5 042.3μg/(g·h),是对照的110.0%。

英文摘要:

The effect of rare earth element Ce3 +on hydrogen production was investigated in this study.The data indicated that the hormesis effect of Ce3+was performance on hydrogen generation,the maximum hydrogen yield reached 123.2 mL/g by adding Ce3+concentration of 0.1 mg/L,which was 120.3% of control.The concentration of VFA by adding 0.1 and 0.05 mg/L Ce3+was 4 511.8 and 4 420.3 mg/L after reaction,which was 1.49 and 1.46 times of control,respectively.The utilization of glucose in each group was between 76.2% and 92.1%.The dehydrogenase activity represented initially increased then decreased trend,the maximum dehydrogenase activity was 5 042.3 μg/(g·h) by adding 0.1 mg/L Ce3+,which was 110.0% of control.

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