C/N值及碳源对CANON工艺污泥脱氮性能的影响  

Effects of C/N Ratio and Carbon Sources on Sludge Denitrification Performance of CANON Process

作　　者：李思敏[1,2] 张洋 唐锋兵 徐宇峰[1,2] 李艳平 LI Si-min;ZHANG Yang;TANG Feng-bing;XU Yu-feng;LI Yan-ping(Hebei Technology Innovation Center for Water Pollution Control and Water Ecological Remediation,Hebei University of Engineering,Handan 056038 ,China;College of Energy and Environmental Engineering,Hebei University of Engineering,Handan 056038 ,China;School of Water Conservancy and Hydroelectric Power,Hebei University of Engineering,Handan 056002,China;Department of Architectural Engineering,North China Electric Power University Science & Technology College,Baoding 071000,China)

机构地区：[1]河北工程大学河北省水污染控制与水生态修复技术创新中心,河北邯郸056038 [2]河北工程大学能源与环境工程学院,河北邯郸056038 [3]河北工程大学水利水电学院,河北邯郸056002 [4]华北电力大学科技学院建筑工程系,河北保定071000

出　　处：《中国给水排水》2019年第15期95-99,105,共6页China Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项(2018ZX07110002-003);河北省重点研发计划项目(18273806D);邯郸市科学技术研究与发展计划项目(1723209055)

摘　　要：为提高对高氨氮污水的脱氮效果,通过批次试验研究了COD/NH4^+-N值(C/N值)和碳源种类对CANON工艺中污泥厌氧氨氧化耦合脱氮性能的影响。试验结果表明,以乙酸钠为碳源,当C/N值为1、2、3、4和5时,厌氧氨氧化对NO2^--N的去除量占NO2^--N总去除量的百分比分别为69. 7%、62. 7%、55. 4%、49. 7%和34. 7%,当C/N值为1、2、3时,CANON工艺中污泥可实现良好的耦合脱氮,但C/N值较高时对污泥的脱氮效果产生了一定的抑制作用;控制C/N值为5,分别以蔗糖、淀粉、葡萄糖和乙酸钠为碳源,考察了不同碳源种类下厌氧氨氧化对NO2^--N去除量占NO2^--N总去除量的比例,当以蔗糖为碳源时,厌氧氨氧化对NO2--N的去除量占NO2^--N总去除量的百分比为66. 9%,可见CANON工艺中污泥可以实现良好的耦合脱氮。In order to improve the denitrification performance of high ammonia nitrogen wastewater,the effects of carbon source and COD/NH4^+-N ratio (C/N ratio) on the coupling denitrification performance of anaerobic ammonia oxidation in CANON process was studied through batch tests. The results showed that the percentages of NO2^--N removed by anaerobic ammonia oxidation were 69. 7%,62. 7%,55. 4%,49. 7% and 34. 7% of the total removal amount respectively,when the C/N ratio was 1,2,3,4 and 5 with sodium acetate as the carbon source. Good nitrogen removal performance was obtained when C/N ratio was 1,2 and 3. However, the high C/N ratio had inhibition on denitrification. The C/N ratio was controlled to 5,sucrose,starch,glucose and sodium acetate were used as carbon sources respectively,and the proportion of the removal amount of NO2^--N by anaerobic ammonia oxidation under different types of carbon sources to the total removal amount of NO2^--N was investigated. When sucrose was applied as the carbon source,the percentage of NO2^--N removed was 66. 9% of the total NO2--N removal amount,indicating that CANON process could achieve good coupling denitrification performance.

关 键 词：CANON工艺 污泥 C/N值 碳源 脱氮 

分 类 号：TU992[建筑科学—市政工程]