| 纳米单质铁对厌氧氨氧化脱氮性能的影响 |
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| 引用本文： | 马娇,曾天续,宋珺,党鸿钟,李维维,陈永志.纳米单质铁对厌氧氨氧化脱氮性能的影响[J].中国环境科学,2022,42(6):2619-2627. |
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| 作者姓名： | 马娇 曾天续 宋珺 党鸿钟 李维维 陈永志 |
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| 作者单位： | 1. 兰州交通大学, 甘肃省黄河水环境重点实验室, 甘肃 兰州 730070;2. 兰州交通大学环境与市政工程学院, 甘肃 兰州 730070;3. 甘肃省污水处理行业技术中心, 甘肃 兰州 730070;4. 中国国家铁路集团有限公司发展与改革部, 北京 100844;5. 甘肃省轻工研究院有限责任公司, 甘肃 兰州 730070 |
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| 基金项目： | 兰州交通大学甘肃省黄河水环境重点实验室开放基金项目(21YRWEK006);甘肃省青年科技基金计划(20JR5RA075) |
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| 摘 要： | 通过向厌氧氨氧化反应器(ASBR)中投加纳米单质铁(nZVI),考察了其对厌氧氨氧化反应(ANAMMOX)脱氮性能的影响.结果表明，在温度为(25±0.5)℃,pH值为7.5±0.5,进水NH4+-N和NO2--N浓度分别为30.35mg/L和37.89mg/L条件下,分别投加0,10,50,100.200,500,1000mg/L nZVI时,总氮去除率(NRE)分别达到70.27%、74.25%、83.45%、90.16%、68.59%、57.18%、50.93%.用修正的Boltzmann、Gompertz、Logistic模型对其进行动力学分析,R2值分别为0.9963、0.9944、0.9851,总氮(TN)出水浓度和NRE的预测值与实际值比较,其均方误差值分别为2.13、6.31、8.48和6.93、7.47、10.95.
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| 关 键 词： | 纳米单质铁 厌氧氨氧化 脱氮效能 动力学模型 |
| 收稿时间： | 2021-11-12 |
Effect of nanoscale zero-valent iron on the denitrification performance of anaerobic ammonia oxidation |
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| MA Jiao,ZENG Tian-xu,SONG Jun,DANG Hong-zhong,LI Wei-wei,CHEN Yong-zhi.Effect of nanoscale zero-valent iron on the denitrification performance of anaerobic ammonia oxidation[J].China Environmental Science,2022,42(6):2619-2627. |
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| Authors: | MA Jiao ZENG Tian-xu SONG Jun DANG Hong-zhong LI Wei-wei CHEN Yong-zhi |
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| Institution: | 1. Key Laboratory of Yellow River Water Environment in Gansu Province, Lanzhou Jiaotong University, Lanzhou 730070, China;2. School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China;3. Technical Center of Sewage Treatment Industry in Gansu Province, Lanzhou 730070, China;4. Development and Reform Ministry of China State Railway Group Co., Ltd, Beijing 100844, China;5. Gansu Research Institute of Light Industry Co., Ltd, Lanzhou 730070, China |
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| Abstract: | The effect of nanoscale zero-valent iron (nZVI) powder on the denitrification performance of anaerobic ammonia oxidation (ANAMMOX) reaction was investigated by adding nZVI into ASBR. When the concentrations of nZVI were 0, 10, 50, 100, 200, 500, and 1000mg/L at the temperatures of (25±0.5)℃, and the pH value of 7.5±0.5, the total nitrogen removal efficiencies (NRE) were 70.27%, 74.25%, 83.45%, 90.16%, 68.59%, 57.18%, and 50.93% under the influent NH4+-N and NO2--N concentrations of 30.35mg/L and 37.89mg/L, respectively. The kinetic analysis was carried out by the modified Boltzmann, Gompertz, and Logistic models,the R2 values were 0.9963, 0.9944, and 0.9851, respectively. The mean square errors of the effluent concentration of total nitrogen (TN) and NRE compared with the actual values were 2.13, 6.31, 8.48, and 6.93, 7.47, 10.95, respectively.Key words:nZVI;ANAMMOX;nitrogen removal efficiency;kineticmodels |
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| Keywords: | nZVI ANAMMOX nitrogen removal efficiency kineticmodels |
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