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电增强零价铁强化厌氧氨氧化处理高氮养猪废水

万 莉 邹义龙 弓晓峰 万金保

万 莉, 邹义龙, 弓晓峰, 万金保. 电增强零价铁强化厌氧氨氧化处理高氮养猪废水[J]. 环境科学研究, 2015, 28(8): 1302-1310.
引用本文: 万 莉, 邹义龙, 弓晓峰, 万金保. 电增强零价铁强化厌氧氨氧化处理高氮养猪废水[J]. 环境科学研究, 2015, 28(8): 1302-1310.
WAN Li, ZOU Yilong, GONG Xiaofeng, WAN Jinbao. Electrical Field and Zero-Valent Iron-Enhanced Anaerobic Ammonium Oxidation for the Treatment of High-Nitrogen Swine Wastewater[J]. Research of Environmental Sciences, 2015, 28(8): 1302-1310.
Citation: WAN Li, ZOU Yilong, GONG Xiaofeng, WAN Jinbao. Electrical Field and Zero-Valent Iron-Enhanced Anaerobic Ammonium Oxidation for the Treatment of High-Nitrogen Swine Wastewater[J]. Research of Environmental Sciences, 2015, 28(8): 1302-1310.

电增强零价铁强化厌氧氨氧化处理高氮养猪废水

基金项目: 江西省科技计划项目(20122BBG70079);江西省教育厅科技落地计划项目(GJJ12433);南昌市对外科技合作与成果转化推广计划项目(2013HZCG001)

Electrical Field and Zero-Valent Iron-Enhanced Anaerobic Ammonium Oxidation for the Treatment of High-Nitrogen Swine Wastewater

  • 摘要: 为解决ZVI(零价铁)电极表面的钝化问题,实现anammox(厌氧氨氧化)工艺稳定、高效地运行,采用EEZVI-UASB(电增强零价铁-升流式厌氧污泥床)技术处理养猪废水,研究了EEZVI电极电压、ρ(CODCr)及脱氮贡献率的相关性. 结果表明,在温度为(35±1)℃、pH为6.80~7.10、电极电压为0.60 V的条件下,EEZVI-UASB对NH4+-N和NO2--N的去除率均维持在较高的水平;NH4+-N去除率>90.00%,NO2--N去除率>96.00%,TN平均去除率>90.00%. 当EEZVI电极电压为0.60 V时,AAOB(厌氧氨氧化菌)的活性为91.10 mg/(g·d)(以NH4+-N计);EEZVI-UASB中的优势功能菌主要为Pseudomonas属,其菌属16S rDNA的PCR扩增相似性达97%;系统中同时存在着反硝化、anammox、甲烷化等反应;其中anammox占主导作用,其对TN去除率的贡献率为54.10%~93.30%,反硝化及其他反应对TN去除率的贡献率为6.70%~45.90%.

     

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