曝气模式对序批式生物膜法脱氮效能的影响  

Influence of Aeration Modes on Nitrogen Removal in Sequencing Batch Biofilm Process

作　　者：陈秀荣[1] 史永梅[2] 吴敏霖[1] 艾奇峰[1] 徐文璐[1] 陈志铮[1] 南丽娜[1] 

机构地区：[1]华东理工大学资源与环境工程学院,上海200237 [2]北京建工金源环保发展有限公司,北京100101

出　　处：《中国给水排水》2011年第7期101-104,共4页China Water & Wastewater

基　　金：国家自然科学基金资助项目(51008124);中央高校基本科研业务费专项资金资助项目

摘　　要：研究了不同的曝气模式对序批式生物膜法脱氮效能的影响。结果表明,与连续低氧(DO=0.9～1.1 mg/L)曝气模式相比,连续好氧(DO=2.5～3.2 mg/L)曝气模式可加速挂膜过程;在序批式运行期间,连续低氧模式较好氧/低氧模式的脱氮效率更高;以脱氮效能为衡量标准,采用连续低氧曝气模式进行挂膜、运行操作,更能促进生物膜内好氧、缺氧分区结构的稳定,更易于实现同时硝化反硝化或短程反硝化过程,提高脱氮效率。The influence of different aeration modes on nitrogen removal in sequencing batch biofilm process was studied. The results show that compared with the continuous low oxygen aeration （ DO = 0.9 to 1.1 rag/L） , the continuous aerobic aeration （DO = 2.5 to 3.2 rag/L） can accelerate the biofilm formation. During the sequencing batch operation, the nitrogen removal efficiency of continuous low oxygen aeration is better than that of aerobic/low oxygen aeration. If the nitrogen removal efficiency is taken as a criterion, the continuous low oxygen aeration is more suitable for stable aerobic and anoxic area distribution in biofilm, which can lead to simultaneous nitrification and denitrification or shortcut denitrification.

关 键 词：曝气模式 序批式生物膜法 脱氮 同时硝化反硝化 短程反硝化 

分 类 号：X703[环境科学与工程—环境工程]