Nitrogen removal from municipal wastewater by limit-oxic/anoxic/oxic biological aerated filter system

作     者：韩洪军 胡宏博 李雨霏 王冰 

作者机构：State Key Laboratory of Urban Water Resources and EnvironmentHarbin Institute of Technology 

出 版 物：《Journal of Harbin Institute of Technology(New Series)》 (哈尔滨工业大学学报（英文版）)

年 卷 期：2011年第18卷第2期

页      面：47-50页

核心收录：

学科分类：0810[工学-信息与通信工程] 083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：Sponsored by the National Basic Research Program of China (973 Program)(Grant No. 2004CB418505) 

主　　题：Nitrogen removal BAF Municipal wastewater Nitrite accumulation DO 

摘      要：In this study,a three-stage biological aerated filter(BAF) system was proposed for the enhancement of nitrogen removal in the treatment of low carbon-to-nitrogen ratio(C/N ratio) municipal *** parameters were studied for each process for maximum nitrite accumulation in the nitrification step and nitrite adaptation in the denitrification *** accumulation during nitrification could be controlled by the dissolved oxygen(DO) concentration,presenting a mean value of 40% at around 1.0 mg DO/*** could be adapted to nitrite and the process was stable if nitrite in the reactor was keep *** the operational parameters were established,the process was stable and a steady state was maintained for over 30 days,and the various indexes of discharged water were up to the Discharge standard of pollutants for municipal wastewater treatment plant(GB18918-2002) Level-one *** was concluded that the three-stage BAF system proposed in this study was excellent in nitrogen removal performance by employing three-column functioning as short-cut nitrification,short-cut denitrification and secondary nitrification,respectively.