部分亚硝化-厌氧氨氧化组合工艺脱氮效果研究  

Study on denitrification effect of partial nitritation-ANAMMOX process

作　　者：冯宁[1] 张文文[1] 马晨曦[1] Feng Ning;Zhang Wenwen;Ma Chenxi(School of Municipal and Environmental Engineering,Shenyang Jianzhu University,Shenyang 110168,China)

机构地区：[1]沈阳建筑大学市政与环境工程学院,辽宁沈阳110168

出　　处：《供水技术》2018年第4期6-10,共5页Water Technology

摘　　要：以低C/N比高氨氮废水作为SBR反应器进水,出水再进入UASB反应器,进行部分亚硝化-厌氧氨氧化组合工艺脱氮效果研究。结果表明:UASB反应器进水脱氧时,在稳定运行阶段,NH_4^+-N、TN和CODCr平均去除率分别为87. 04%、80. 70%和86. 97%,最高去除率分别达到91. 32%、82. 88%和88. 89%; UASB反应器进水不脱氧时,在稳定运行阶段,NH_4^+-N、TN和CODCr平均去除率分别为91%、84%和86%,最高去除率分别达到了95. 78%、87. 67%和92. 22%。部分亚硝化-厌氧氨氧化组合工艺经过调试后可以稳定运行,对处理低C/N比高氨氮废水具有较好效果;厌氧氨氧化反应器进水不脱氧,仍可以达到较好的处理效果,反应器内是一个好氧氨氧化、异养反硝化、ANAMMOX协同脱氮过程,具体的耦合脱氮机理还有待进一步探讨。The effect of nitrogen removal by partial nitrification-ANAMMOX was carried out in a SBR reactor with low C/N and high ammonia nitrogen wastewater, followed by USAB reactor. The results showed that the average removal rates of NH ＋ 4-N, TN and COD Cr were 87.04%, 80.70% and 86.97% in the stable operation stage, and the maximum removal rates were 91.32%, 82.88% and 88.89% respectively under the condition of inflow deoxygenation of USAB reactor. The average removal rates of NH ＋ 4-N, TN and COD Cr were 91%, 84% and 86% and the highest removal rate reached 95.78%, 87.67% and 92.22% respectively when the influent of UASB reactor was not deoxidized. The partial nitrification -ANAMMOX oxidation process could run steadily after debugging, and it had a better effect on treating low C/N and high ammonia nitrogen wastewater. When the inflow of anaerobic ammonia oxidation reactor was not deoxidized, it could still achieve better treatment effect. Synergistic denitrification of aerobic ammoxidation, heterotrophic denitrification and ANAMMOX realized in the reactor, but the specific nitrogen removal mechanism needed to be further explored.

关 键 词：亚硝化 厌氧氨氧化 组合工艺 脱氮 

分 类 号：TU992[建筑科学—市政工程]