Studies on Operational Conditions for Single-stage Nitrogen Removal Process using the Anammox Reaction
Studies on Operational Conditions for Single-stage Nitrogen Removal Process using the Anammox Reaction
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DOI：
10.1252/kakoronbunshu.36.420
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发表时间：
2010-01-01
影响因子：
0.4
通讯作者：
Furukawa, Kenji
中科院分区：
文献类型：
--
作者：
Okamoto, Hiroyuki;Nomura, Atsuko;Furukawa, Kenji
研究了厌氧氨氧化反应的预处理工艺--固定床短程硝化工艺的脱氮效果。两种统计方法，多元回归分析和样条响应面法（RSM法），被施加到确定的主要操作因素，这种有效的一步脱氮使用厌氧氨氧化工艺。RSM方法显示了使用具有高贡献值的解释变量的更高去除率的要求。结果表明，在高曝气量和高进水流量条件下，脱氮效果较好。在该反应器中，有可能获得1.5- 2. 9 kg-NH（4）-N/（m（3）·d）的高体积去除率。新的厌氧氨氧化菌（Asahi-BRW）在该反应器中被检测到，从该反应器的污泥中检测到的很少。从该反应器的游离污泥中检测到了包括多种类型的亚硝化单胞菌在内的铵氧化细菌。
This study was carried out into unexpected nitrogen removal in a fixed bed partial nitrification process, which is an essential pretreatment process for anaerobic ammonium oxidation (anammox). Two statistical methods, multiple regression analysis and the response surface method by spline (RSM-method), were applied to identify the main operational factors for this efficient one-step nitrogen removal using the anammox process. The RSM-method shows the requirements for higher removal rate using explanatory variables with high contribution values. It was found that nitrogen removal rates were obtained under high aeration rates and high flux of influent. It will be possible to attain a high volumetric removal rate of 1.5-2.9 kg-NH(4)-N/(m(3).d) in this reactor. New anammox bacteria (Asahi-BRW) were detected in this swim-bed reactor, with few detected in the sludge from this reactor. Ammonium oxidizing bacteria, including many types of Nitrosomonas europaea, were detected in free sludge from this reactor.