两段式 PN-ANAMMOX 工艺处理成熟垃圾渗滤液的长期性能及微生物生态学研究。
Long-term performance and microbial ecology of a two-stage PN-ANAMMOX process treating mature landfill leachate.
机构信息
College of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou 510006, PR China.
College of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou 510006, PR China; Guizhou Academy of Sciences, Shanxi Road 1, Guiyang 550001, PR China; State Key Laboratory of Subtropical Building Sciences, South China University of Technology, Guangzhou 510641, PR China; Key Laboratory of Environmental Protection and Eco-remediation of Guangdong Regular Higher Education Institutions, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou 510006, PR China; College of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, PR China.
出版信息
Bioresour Technol. 2014 May;159:404-11. doi: 10.1016/j.biortech.2014.02.054. Epub 2014 Feb 24.
Long-term performance of a two-stage partial nitritation (PN)-anaerobic ammonium oxidation (ANAMMOX) process treating mature landfill leachate was investigated. Stable partial nitritation performance was achieved in a sequencing batch reactor (SBR) using endpoint pH control, providing an effluent with a ratio of NO2(-)-N/NH4(+)-N at 1.23 ± 0.23. High rate nitrogen removal over 4 kg N/m(3)/d was observed in the ANAMMOX reactor in the first three months. However, during long-term operation, the ANAMMOX reactor can only stably operate under nitrogen load of 1 kg N/m(3)/d, with 85 ± 1% of nitrogen removal. The ammonium oxidizing bacteria (AOB) in the PN-SBR were mainly affiliated to Nitrosomonas sp. IWT514, Nitrosomonas eutropha and Nitrosomonas eutropha, the anaerobic ammonium oxidizing bacteria (AnAOB) in the ANAMMOX reactor were mainly affiliated to Kuenenia stuttgartiensis.
考察了两段式部分亚硝化（PN）-厌氧氨氧化（ANAMMOX）工艺处理成熟垃圾渗滤液的长期性能。采用终点 pH 控制的序批式反应器（SBR）实现了稳定的部分亚硝化性能，提供了 NO2--N/NH4+-N 比为 1.23±0.23 的出水。在前三个月，ANAMMOX 反应器中观察到超过 4 kg N/m(3)/d 的高氮去除率。然而，在长期运行中，ANAMMOX 反应器只能在 1 kg N/m(3)/d 的氮负荷下稳定运行，氮去除率为 85±1%。PN-SBR 中的氨氧化细菌（AOB）主要属于 Nitrosomonas sp. IWT514、Nitrosomonas eutropha 和 Nitrosomonas eutropha，ANAMMOX 反应器中的厌氧氨氧化细菌（AnAOB）主要属于 Kuenenia stuttgartiensis。
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