可再生能源2011,Vol.29Issue(6):102-105,109,5.
微量元素对乙酸底物产甲烷的影响
Effects of microelements on the methane produced by acetic substrate
摘要
Abstract
More and more research shows that the main pathway of methanogenesis was proceed by acetic acid degradation in the anaerobic fermentation reactor. Methanothrix often as the main methanogen. In this paper, acetate as carbon and energy substrate, Methanothrix was cultured in semi-continuous way, the effects of microelements on methane fermentation was analyzed. The results showed that by optimizing the culture medium concentration of microelements, methane production rate was increased 1.42 times and bacterial concentration was increased 1.61 times than before. The microelements had a remarkable effect on the production of methane by methanothrix ; The optimization effect of microelements was weakened when the acetic load is low. The microelements could adjuste or alleviate the inhibitory action of acetic load on the production of methane.关键词
甲烷发酵/Methanothrix/微量元素/乙酸底物/半连续培养Key words
methane fermentation/Methanothrix/microelements/acetate substrate/semi-continuous culture分类
能源科技引用本文复制引用
李晓华,李国会,董仁杰,张燕生..微量元素对乙酸底物产甲烷的影响[J].可再生能源,2011,29(6):102-105,109,5.基金项目
国家科技支撑计划(2008BADC4B06 ()
2008 BADC4B17). ()