改良型UASB厌氧氨氧化工艺研究  

Study on Anaerobic Ammonium Oxidation in Improved UASB Reactor

作　　者：李德祥[1] 李冬[1] 吴迪[1] 曾辉平[1] 张杰[1,2] 

机构地区：[1]北京工业大学水质科学与水环境恢复工程北京市重点实验室,北京100124 [2]哈尔滨工业大学城市水资源与水环境国家重点实验室,黑龙江哈尔滨150090

出　　处：《中国给水排水》2013年第21期33-37,共5页China Water & Wastewater

基　　金：新世纪优秀人才支持计划项目(NECT-10-0008);国家水体污染控制与治理科技重大专项(2012ZX07202-005)

摘　　要：采用上部添加聚乙烯辫带式填料的升流式厌氧污泥床,通过逐渐缩短水力停留时间(HRT)的方式,成功实现了厌氧氨氧化。该聚乙烯辫带式填料对厌氧氨氧化污泥起到很好的截留作用,有效地抑制了污泥的流失,且逐步将反应器的HRT由4.44 h缩短至0.33 h,取得了较高的总氮去除负荷,达到7.11 kgN/(m3·d),并实现了污泥颗粒化,平均粒径达到1.55 mm;FNA为85μg/L会对厌氧氨氧化反应造成一定程度的抑制作用;随着断面流速的增大,反应器对总氮的去除负荷逐渐增加,但去除率基本维持不变,与普通升流式厌氧污泥床相比,其具有较强的抗水力冲击能力。Anaerobic ammonium oxidation （ANAMMOX） was achieved by shortening HRT in up- flow anaerobic sludge blanket （UASB） reactor filled with polyethylene carrier. The polyethylene carrier effectively intercepted ANAMMOX sludge, reducing sludge loss. The TN removal load of 7.11 kgN/（m^3·d） was obtained by shortening HRT from 4.44 h to 0.33 h. Sludge granulation was achieved with average particle size of 1.55 mm. When FNA was 85 μg/L, ANAMMOX was inhibited to some extent. As the cross-sectional flow rate increased, the TN removal load increased gradually while the TN removal rate was essentially unchanged. The UASB reactor filled with polyethylene carrier had a strong resistance to hydraulic shock compared with that without polyethylene carrier.

关 键 词：升流式厌氧污泥床 填料 断面流速 颗粒污泥 

分 类 号：X703[环境科学与工程—环境工程]