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一株耐低温反硝化聚磷菌的筛选及其特性研究

Keywords: 反硝化聚磷菌,低温,筛选,pH,微量元素,生长曲线

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Abstract:

通过吸磷试验、硝酸盐还原产气试验及异染颗粒和PHB颗粒染色辅助检验,并采用模拟自然降温方式,从稳定运行的厌氧/缺氧SBR反应器中分离筛选出在低温下(8℃)仍具有高效能的一株反硝化聚磷菌H16。经鉴定,H16属于假单胞菌属(Pseudomonas)。在低温下,探讨了pH值、微量元素对菌株的生长及除磷效能的影响,结果表明,菌株H16生长最适pH为7~8,除磷反应的最佳pH值为7;微量元素的缺乏对H16的生长和除磷效能都有一定的不良影响。同时测定了H16的生长曲线。

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