| 以亚硝酸盐为电子受体的反硝化除磷性能研究 |
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| 引用本文： | 彭永臻,张婧倩,唐旭光,淹川哲夫.以亚硝酸盐为电子受体的反硝化除磷性能研究[J].北京工业大学学报,2011,37(11):1749-1755. |
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| 作者姓名： | 彭永臻 张婧倩 唐旭光 淹川哲夫 |
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| 作者单位： | 北京工业大学北京市水质科学与水环境恢复工程重点实验室,北京,100124;前桥工科大学土木与环境工程学院,群马县前桥市 日本 |
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| 基金项目： | “十一五”国家科技支撑计划重点资助项目(2006BAC19B03); 北京高校人才强教计划层次人才资助项目(PHR20090502) |
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| 摘 要： | 以实际生活污水为研究对象,在SBR系统中采用厌氧/缺氧运行方式,考察不同亚硝酸盐(NO2--N)质量浓度下以亚硝酸盐为电子受体的反硝化除磷性能.实验根据进水ρ(COD)及亚硝酸钠投加量的不同,分为3个阶段.研究发现,维持缺氧段初始ρ(NO2--N)为20mg/L左右(第Ⅲ阶段),经过长期驯化,运行稳定后,缺氧段吸磷率达74.42%,最大吸磷速率可达11.70 mg/(gMLSS.h);磷去除率达57.8%.此后,又进行了初始ρ(NO 2--N)为50 mg/L的亚硝酸盐冲击负荷试验,缺氧段最大吸磷速率为5.63 mg/(gMLSS.h),与第Ⅲ阶段相比,最大吸磷速率下降53%.随后在未经驯化的情况下,通过短期实验分别考察该系统以NO3--N和O2作为电子受体时的除磷性能,其缺氧段最大吸磷速率分别为11.09和29.268 mg/(gMLSS.h),分别是第Ⅲ阶段最大吸磷速率的94.7%和2.5倍.
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| 关 键 词： | 反硝化聚磷菌 亚硝酸盐 硝酸盐 |
Study of the Characteristics of Denitrification Phosphorus Removal Using Nitrite as Electron Acceptor |
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| PENG Yong-zhen,ZHANG Jing-qian,TANG Xu-guang,AKIO Takigawa.Study of the Characteristics of Denitrification Phosphorus Removal Using Nitrite as Electron Acceptor[J].Journal of Beijing Polytechnic University,2011,37(11):1749-1755. |
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| Authors: | PENG Yong-zhen ZHANG Jing-qian TANG Xu-guang AKIO Takigawa |
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| Affiliation: | PENG Yong-zhen1,ZHANG Jing-qian1,TANG Xu-guang1,AKIO Takigawa2(1.Key Laboratory of Beijing Water Quality Science and Water Environment Recovery Engineering,Beijing University of Technology,Beijing 100124,2.Department of Civil and Environmental Engineering,Maebashi Institute of Technology,Japan) |
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| Abstract: | A SBR process was adopted to investigate the characteristics of denitrification phosphorus removal by using nitrite as electron acceptor and treating real domestic wastewater.An anaerobic/anoxic method was introduced in the process,and nitrite was dosed at the end of anaerobic phase.According to the different level of influent COD and the dosed nitrite,the experiment can be separated into three phases.At the third phase,keeping nitrite at 20 mg/L,after a long tern domestication,the max phosphorus uptake rat... |
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| Keywords: | simultaneous nitrification and denitrification nitrite nitrate |
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