| 氨氧化菌对填埋场CH4协同氧化及铵抑制作用的研究 |
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| 引用本文： | 彭 禹,张卫风,朱 琳,张后虎,赵克强,孙勤芳,聂发辉.氨氧化菌对填埋场CH4协同氧化及铵抑制作用的研究[J].环境科学研究,2014,27(2):172-177. |
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| 作者姓名： | 彭 禹 张卫风 朱 琳 张后虎 赵克强 孙勤芳 聂发辉 |
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| 作者单位： | 华东交通大学土木与建筑学院, 江西 南昌 330013;华东交通大学土木与建筑学院, 江西 南昌 330013;环境保护部南京环境科学研究所, 江苏 南京 210042;环境保护部南京环境科学研究所, 江苏 南京 210042;环境保护部南京环境科学研究所, 江苏 南京 210042;环境保护部南京环境科学研究所, 江苏 南京 210042;华东交通大学土木与建筑学院, 江西 南昌 330013 |
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| 基金项目： | 国家自然科学基金项目(41375161)；中国科学院战略先导专项(XDA05020602);苏州科技学院-江苏省环境科学与工程重点实验室开放基金(zd111203) |
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| 摘 要： | 借助乙炔(C2H2)抑制和添加外源铵盐,采用批式培养试验,在初始CH4浓度为16%的条件下模拟填埋场高CH4浓度环境,通过分析样品中氨氧化菌对CH4氧化的贡献率及铵对CH4氧化的抑制率,研究了填埋场覆盖土、矿化垃圾、砂土和黏土中氨氧化菌对CH4协同氧化及铵抑制作用. 结果表明:4种供试样品中氨氧化菌对CH4氧化的贡献率在5.64%~16.24%之间,次序为砂土＜黏土＜覆盖土＜矿化垃圾,覆盖土中的贡献率为14.90%,比矿化垃圾低8.25%,填埋场样品(矿化垃圾和覆盖土)是一般土壤(砂土和黏土)的1.8~10.9倍. 铵对CH4氧化过程的抑制率在11.90%~24.84%之间,次序为砂土＜黏土＜覆盖土＜矿化垃圾,覆盖土中为23.21%,比矿化垃圾低6.56%,填埋场样品是一般土壤的0.9~2.1倍. 填埋场样品中氨氧化菌对CH4氧化的贡献率及铵对CH4氧化的抑制率明显高于一般土壤.
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| 关 键 词： | CH4氧化 氨氧化菌 协同氧化 抑制作用 填埋场覆盖土 |
| 收稿时间： | 2013/5/25 0:00:00 |
| 修稿时间： | 2013/11/22 0:00:00 |
Landfill CH4Co-Oxidation by Ammonia-Oxidizing Bacteria and the Inhibition Effect by Ammonium |
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| PENG Yu,ZHANG Wei-feng,ZHU Lin,ZHANG Hou-hu,ZHAO Ke-qiang,SUN Qin-fang and NIE Fa-hui.Landfill CH4Co-Oxidation by Ammonia-Oxidizing Bacteria and the Inhibition Effect by Ammonium[J].Research of Environmental Sciences,2014,27(2):172-177. |
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| Authors: | PENG Yu ZHANG Wei-feng ZHU Lin ZHANG Hou-hu ZHAO Ke-qiang SUN Qin-fang and NIE Fa-hui |
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| Affiliation: | School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, China;School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, China;Nanjing Institute of Environmental Science, China Ministry of Environmental Protection, Nanjing 210042, China;Nanjing Institute of Environmental Science, China Ministry of Environmental Protection, Nanjing 210042, China;Nanjing Institute of Environmental Science, China Ministry of Environmental Protection, Nanjing 210042, China;Nanjing Institute of Environmental Science, China Ministry of Environmental Protection, Nanjing 210042, China;School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, China |
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| Abstract: | Based on inhibitor acetylene (C2H2), ammonium addition and batch incubation, the contribution of ammonium-oxidizing bacteria to the process of landfill methane (CH4) oxidation and the inhibition effect by ammonium addition have been analyzed. Four different types of materials have been sampled:landfill covered soil, mineralized refuse, sandy soil and clay soil under the condition of the initial CH4concentration of 16% to simulate landfills environment. The contributions of ammonia-oxidizing bacteria to CH4oxidation ranged from 5.64% to 16.24% and following the followed increasing order:sandy soil4oxidation were confirmed from 11.90% to 24.84% in the four tested samples, which followed the order as sandy soil4oxidation in landfill samples were significantly higher than those for sandy soil and clay soil. |
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| Keywords: | CH4oxidation ammonia-oxidizing bacteria coupling oxidation inhibition effect landfill cover soil |
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