Immobilization and ammonia removal of photosynthetic bacteria

文献类型: 外文期刊

第一作者: Zhan Peirong

作者: Zhan Peirong;Liu Wei

作者机构:

关键词: Photosynthetic bacteria;Immobilization;Ammonia removal;Fishpond water

期刊名称:PROGRESS IN ENVIRONMENTAL SCIENCE AND ENGINEERING, PTS 1-4

ISSN: 1022-6680

年卷期: 2013 年 610-613 卷

页码:

收录情况: SCI

摘要: The photosynthetic bacteria have been widely used in improving the water environment, especially for pollutant purification. A photosynthetic bacterium was isolated from fish pond sludge using various methods. The bacterium is rod-shaped and slightly curved, and they reproduce by budding. It grew anaerobically when exposed to light and aerobically in darkness. Based on electron microscopy, utilization of carbon sources and amino acids, and factors required for growth, the bacterium is identified as Rhodopseudomonas palustris. The R. palustris was immobilized using different carriers to increase its concentration and its targeted use. The results show that immobilization of the bacteria stabilized the ammonia removal and protected the bacteria from predation by plankton. The method is also easy to use and prolonged the purification effect in the reactor. The immobilized microorganisms are 30%-40% more effective than free bacteria in removing ammonia.

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