| 低溶解氧下生物膜反应器的亚硝化研究 |
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| 引用本文： | 郑赞永,胡龙兴.低溶解氧下生物膜反应器的亚硝化研究[J].环境科学与技术,2006,29(9):29-31. |
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| 作者姓名： | 郑赞永 胡龙兴 |
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| 作者单位： | 上海大学环境与化学工程学院,上海,200072 |
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| 摘 要： | 采用生物膜反应器处理人工合成高氨氮废水,研究了低溶解氧(DO)条件反应器亚硝化反应的启动和稳定运行,并考察了不同DO浓度对硝化过程中亚硝态氮积累的影响。结果表明:在30±2℃,进水氨氮为300mg/L左右,当DO=2.0±0.1mg/L,亚硝态氮累积率在80%以上;当DO为1.2～1.5mg/L时,亚硝态氮累积率在90%以上;当DO为2.5～2.8mg/L时,亚硝态氮累积率在50%左右。因此,反应器中通过控制DO实现稳定亚硝化是可行的。
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| 关 键 词： | 生物膜 溶解氧 亚硝态氮累积率 亚硝化 |
| 文章编号： | 1003-6504(2006)09-0029-03 |
| 收稿时间： | 2005-11-07 |
| 修稿时间： | 2005年11月7日 |
Nitrification in a Bio-film Reactor at Low DO Concentration |
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| ZHENG Zan-yong,HU Long-xing.Nitrification in a Bio-film Reactor at Low DO Concentration[J].Environmental Science and Technology,2006,29(9):29-31. |
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| Authors: | ZHENG Zan-yong HU Long-xing |
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| Abstract: | Based on a benchscale experiment using a bio-film reactor, this paper discusses the nitritation efficiency, which is believed to determine the overall rate of nitrogen elimination, investigating the stability of nitritaion at low DO concentration, as well as effects of different ranges of DO concentration on nitrite accumulation. It is concluded that stabilized nitritation can be realized in the reactor through control of DO concentration. |
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| Keywords: | bio-film DO accumulation rate of nitrite nitritation |
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