数字农科院2.0

用DGGE技术分析污水人工快速渗滤系统中微生物种群分布

文献类型： 中文期刊

作者： 姜昕;马鸣超;李俊;李力;钟佐燊

作者机构：

关键词： 人工快渗系统;变性梯度凝胶电泳(DGGE);16S rDNA;微生物种群分布

期刊名称：微生物学通报

ISSN： 0253-2654

年卷期： 2007 年 34 卷 06 期

页码： 1179-1183

收录情况： 北大核心 ; CSCD

摘要： 从深圳运行中的人工快速渗滤系统(CRI)的砂层填料中以5cm~10cm间隔垂直取10个样品,进行16S rDNAV3区的DGGE分析,结果表明,CRI系统中微生物种群随着深度的增加逐渐减少,在快渗池砂层填料的30cm深度范围内,微生物群落组成至少有18种,主要是Firmicutes、alpha proteobacterium中的异养菌,它们是COD降解的主要参与者;而在40cm及更深范围,菌群减少为12种甚至更少,优势菌是Acidovorax sp.、Nitrospira sp.、Clostridium sp.等,表明快渗池下部存在较强的硝化作用和厌氧的微环境,快渗池上、下层之间呈现出不同的多样性。结果揭示出CRI系统中的微生物种群空间分布状况,为其处理效果的稳定和提高提供了理论基础。

分类号： X703

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