Potential applications of aerobic denitrifying bacteria as bioagents in wastewater treatment
Potential applications of aerobic denitrifying bacteria as bioagents in wastewater treatment
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DOI：
10.1016/s0960-8524(98)00140-0
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发表时间：
1999-05-01
影响因子：
11.4
通讯作者：
Chen, CH
中科院分区：
文献类型：
--
作者：
Pai, SL;Chong, NM;Chen, CH
从台湾中部的稻田沉积物中分离出三种分解细菌，发现它们能够在有氧或厌氧条件下通过将硝酸盐转化为氮气来获得能量。特别是分离物DCB-T6的反硝化速率不受氧存在的影响，而另外两个分离物DCB-T23和T25则受氧存在的影响。使用确定的合成培养基来确认这些细菌可以在有氧条件下将硝酸盐转化为氮气。当与驯化的活性污泥混合时，在完全好氧条件下处理合成废水，评价了这些细菌的絮凝潜力。当添加到硝化活性污泥中时，富含有机氮的T6以每天360 mg N/g MLVSS的速率进行反硝化。(C)爱思唯尔科技有限公司版权所有。
Three denitrifying bacteria, which were isolated from rice paddy sediment in central Taiwan, have been found capable of obtaining energy by converting nitrates to nitrogen gas under either aerobic or anaerobic conditions. The denitrification rate of the isolate DCB-T6, in particular, was not affected by the presence of oxygen, whereas the other two isolates, DCB-T23 and T25, were. A defined synthetic medium was used to confirm that these bacteria could convert nitrates to nitrogen gas under aerobic conditions. The denitrifying potential of these bacteria was evaluated when mixed with acclimated activated sludge to treat a synthetic wastewater under a fully aerobic condition. When added to a nitrifying activated sludge, the organic-nitrogen enriched T6 performed denitrification at a rate of 360 mg N/g MLVSS per day. (C) Elsevier Science Ltd. All rights reserved.