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| An autotrophic nitrogen removal process：Short-cut nitrification combined with ANAMMOX for treating diluted effluent from an UASB reactor fed by landfill leachate | |
| 引用本文： | Jie Liu,Jian’e Zuo,Yang Yang,Shuquan Zhu,Sulin Kuang,Kaijun Wang.An autotrophic nitrogen removal process：Short-cut nitrification combined with ANAMMOX for treating diluted effluent from an UASB reactor fed by landfill leachate[J].环境科学学报(英文版),2010,22(5):777-783. |
| 作者姓名： | Jie Liu Jian’e Zuo Yang Yang Shuquan Zhu Sulin Kuang Kaijun Wang |
| 作者单位： | [1]Environmental Simulation and Pollution Control State Key Joint Laboratory, Department of Environmental Science and Engineering, Tsinghua University, Beifing 100084, China [2]School of Chemical and Environmental Engineering, China University of Mining and Technology （Beifing）, Beifing 100083, China [3]Liulitun Sanitary Landfill, Beijing 100094, China |
| 基金项目： | This work was financially supported by the Special Fund of State Key Joint Laboratory of Environment Simulation and Pollution Control, China (No. 08Y03ESPCT) and the Key Projects in the National Science & Technology Pillar Program in the Eleventh Five-Year Plan Period of China (No. 2006BACl9B01). |
| 摘 要： | A combined process consisting of a short-cut nitrification (SN) reactor and an anaerobic ammonium oxidation upflow anaerobic sludge bed (ANAMMOX) reactor was developed to treat the diluted effluent from an upflow anaerobic sludge bed (UASB) reactor treating high ammonium municipal landfill leachate.The SN process was performed in an aerated upflow sludge bed (AUSB) reactor (working volume 3.05 L),treating about 50% of the diluted raw wastewater.The ammonium removal efficiency and the ratio of NO 2 N to NOx-N in the effluent were both higher than 80%,at a maximum nitrogen loading rate of 1.47 kg/(m 3 ·day).The ANAMMOX process was performed in an UASB reactor (working volume 8.5 L),using the mix of SN reactor effluent and diluted raw wastewater at a ratio of 1:1.The ammonium and nitrite removal efficiency reached over 93% and 95%,respectively,after 70-day continuous operation,at a maximum total nitrogen loading rate of 0.91 kg/(m 3 ·day),suggesting a successful operation of the combined process.The average nitrogen loading rate of the combined system was 0.56 kg/(m 3 ·day),with an average total inorganic nitrogen removal efficiency 87%.The nitrogen in the effluent was mostly nitrate.The results provided important evidence for the possibility of applying SN-ANAMMOX after UASB reactor to treat municipal landfill leachate. |
| 关 键 词： | UASB反应器 厌氧氨氧化 填埋场渗滤液 垃圾渗滤液 脱氮工艺 混合污水 联合治疗 短程硝化 |
| 收稿时间： | 30 July 2009 |
| 修稿时间： | 27 November 2009 |
An autotrophic nitrogen removal process: Short-cut nitrification combined with ANAMMOX for treating diluted e uent from an UASB reactor fed by landfill leachate |
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| Jie Liu,Jian'e Zuo,Yang Yang,Shuquan Zhu,Sulin Kuang,Kaijun Wang.An autotrophic nitrogen removal process: Short-cut nitrification combined with ANAMMOX for treating diluted e uent from an UASB reactor fed by landfill leachate[J].Journal of Environmental Sciences,2010,22(5):777-783. | |
| Authors: | Jie Liu Jian'e Zuo Yang Yang Shuquan Zhu Sulin Kuang Kaijun Wang |
| Institution: | 1. Environmental Simulation and Pollution Control State Key Joint Laboratory, Department of Environmental Science and Engineering,Tsinghua University, Beijing 100084, China;School of Chemical and Environmental Engineering, China University of Mining and Technology(Beijing),Beijing 100083,China 2. Environmental Simulation and Pollution Control State Key Joint Laboratory, Department of Environmental Science and Engineering,Tsinghua University, Beijing 100084, China 3. School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing) Beijing 100083, China 4. Liulitun Sanitary Landfill, Beijing 100094, China |
| Abstract: | A combined process consisting of a short-cut nitrification (SN) reactor and an anaerobic ammonium oxidation upflow anaerobic sludge bed (ANAMMOX) reactor was developed to treat the diluted effluent from an upflow anaerobic sludge bed (UASB) reactor treating high ammonium municipal landfill leachate. The SN process was performed in an aerated upflow sludge bed (AUSB) reactor (working volume 3.05 L), treating about 50% of the diluted raw wastewater. The ammonium removal efficiency and the ratio of NO2−-N to NOx−-N in the effluent were both higher than 80%, at a maximum nitrogen loading rate of 1.47 kg/(m3·day). The ANAMMOX process was performed in an UASB reactor (working volume 8.5 L), using the mix of SN reactor effluent and diluted raw wastewater at a ratio of 1:1. The ammonium and nitrite removal efficiency reached over 93% and 95%, respectively, after 70-day continuous operation, at a maximum total nitrogen loading rate of 0.91 kg/(m3·day), suggesting a successful operation of the combined process. The average nitrogen loading rate of the combined system was 0.56 kg/(m3·day), with an average total inorganic nitrogen removal efficiency 87%. The nitrogen in the effluent was mostly nitrate. The results provided important evidence for the possibility of applying SN-ANAMMOX after UASB reactor to treat municipal landfill leachate. |
| Keywords: | landfill leachate short-cut nitrification anaerobic ammonia oxidation autotrophic nitrogen removal |
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