| 硝化耦合CANON的铁锰氨生物净化工艺启动与运行 |
| 摘要点击 1764 全文点击 559 投稿时间：2017-08-03 修订日期：2017-09-03 |
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| 中文关键词 铁锰 氨氮 CANON 氮素守恒 DO |
| 英文关键词 iron and manganese ammonia nitrogen CANON nitrogen conservation dissolved oxygen |
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| 中文摘要 |
| 在某生物除铁除锰水厂，以中试模拟滤柱开展了硝化耦合CANON的铁锰氨生物净化工艺启动与运行试验，并分析了氨氮转化去除路径.结果表明，生物除铁除锰滤池历经164 d驯化培养，可实现硝化耦合CANON去除氨氮并稳定运行，特征值△NH4+-N/△NO3--N为1.49，生物滤柱对Fe（Ⅱ）、Mn（Ⅱ）和NH4+-N的氧化去除量分别为（9.87±1.17）、（2.25±0.06）和（1.51±0.06）mg ·L-1.基于氮素守恒和溶解氧（DO）守恒分析，通过CANON过程去除的氨氮质量分数为33.48%~38.87%，氨氮去除量与实际需氧量的平均比例为1：3.79~1：3.94.温度越低，氨氮经CANON过程去除的质量分数越低. |
| 英文摘要 |
| A pilot-scale bio-filter coupled nitrification and CANON was started up to remove iron, manganese and ammonia nitrogen from groundwater in a plant, and the main removal route of ammonia nitrogen was analyzed. The experiment showed that the bio-filter could be started up successfully and achieved stable operation after 164 days of culture development. The value of △NH4+-N/△NO3--N was 1.49, and the oxidation and removal of Fe(Ⅱ), Mn(Ⅱ), and NH4+-N were (9.87±1.17), (2.25±0.06), and (1.51±0.06) mg·L-1, respectively. The calculation based on the quantitative relationship between nitrogen conservation and dissolved oxygen (DO) measurement indicated that the contribution of CANON to NH4+-N removal was 33.48%-38.87%, and the average ratio of ammonia nitrogen removal amount to DO was 1:3.79-1:3.94. The removal ratio of ammonia nitrogen was lower with lower temperature. |
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