对处理不同废水的几种厌氧消化器生物量中优势产甲烷菌的观察

被引:3
作者
杨秀山
Andrea Tilche
机构
[1] 北京师范学院生物系
[2] 核能和可选择能源委员会
关键词
产甲烷菌; 甲烷八叠球菌; 厌氧消化器; 生物量; 现存量;
D O I
10.13343/j.cnki.wsxb.1989.02.009
中图分类号
学科分类号
摘要
<正> 近年来,人们对城市废水、工业废水和农业废物的厌氧消化产生极大的兴趣。厌氧消化不仅是减少有机物污染的便利方法,而且在此处理系统中能得到正的能量平衡。厌氧消化器中的生物量一般由四个主要细菌类群组成。有机物完全有效地转化为甲烷,需要这些细菌的相互代谢作用。否则,即引起甲烷产率的降低,甚至整个厌氧消化过程遭到失败。在对厌氧消化的微生物学研究中,产甲烷菌(methanogens)更加引起研究者的注意。这不仅因为此类菌是有机物甲烷化过程中的最后一组成员,而且它们生长缓慢、底物要求苛刻,因此在发酵器内保留足够量的产甲烷菌是厌氧处理过程正常进行的关键。
引用
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页码:145 / 148
页数:4
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