摘要：

针对猪场沼液脱氮难的问题, 通过在UASB中实现同步厌氧氨氧化甲烷化反硝化达到脱氮除碳的目的。结果表明:中温条件下(31~35℃), UASB经过成功启动和90 d的运行, 逐步实现了同步厌氧氨氧化甲烷化反硝化, COD去除率为80%~90%, NO2^--N去除率为90%以上, 总氮去除率为50%~60%, 氨氮去除率为8%~24%。

关键词: 厌氧氨氧化, 甲烷化, 反硝化, 猪场沼液

Abstract:

According to the difficulty of hogpen biogas slurry denitrogenation, simultaneous anaerobic ammonium oxidation, methanogenesis and denitrification have been conducted in a UASB reactor to achieve the purpose ofdenitrogenation and decarbonization. The results indicate that under medium temperature(31-35℃)the UASB reactor is started-up successfully and operated at 90 d and the anaerobic ammonium oxidation, methanogensis and denitrification processes are realized simultaneously and gradually. The COD removal rate is 80%-90%, the NO2^--N removal rate is above 90%, the TN removal rate is 50%-60%, and the ammonia-nitrogen removal rate is 8%-24%.

Key words: anaerobic ammonium oxidation, methanogenesis, denitrification, hogpen biogas slurry

中图分类号: 

• X703.1