一体化复合式生物反应器的脱氮研究  

Study on Nitrogen Removal by Integrative Hybrid Bioreactor

作　　者：王富贵 蔡丽 李晨 

机构地区：[1]广东工业设备安装公司第三分公司,广东广州510220 [2]辽宁省大连市城市建设管理局大连市排水设计院,辽宁大连116021 [3]辽宁省大连市市政设计研究院有限责任公司,辽宁大连116011

出　　处：《化学与生物工程》2007年第1期62-64,共3页Chemistry & Bioengineering

摘　　要：利用自制的一体式缺氧／好氧（A／O）复合式生物反应（HBR），对高浓度氨氮废水进行了脱氮研究．结果表明，当进水COD浓度在950-1100mg·L^-1、氨氮浓度增加到150mg·L^-1时系统COD、氨氮去除率开始下降，在好氧区内检测到大量的NO2^-—N积累，表明HBR的脱氮作用部分是通过短程硝化-反硝化途径实现的．且复合式生物反应器填料内部存在多种多样的微环境类型以及缺氧／好氧内循环，造成反应器缺氧、好氧区都发生了同步硝化-反硝化反应．Continuous treatment of high-loaded ammonia nitrogen wastewater was carried out by a self-made integrative anoxic/oxic hybrid bioreactor. The results showed that when the influent COD concentration was in the range of 950-1100 mg · L^-1 , the removal decreased as ammonia nitrogen concentration was above 150 mg · L^-1. Much nitrite could be found in the oxic section, thus the removal of nitrogen by hybrid bioreactor was achieved partly through short-cut nitrification-denitrification. And the biological environment of carrier in hybrid biological reactor was various and the characteristic of anoxic/oxic section harmonized with each other by circulation, accordingly conduced to the phenomenon of simultaneous nitrification-denitrification in both anoxic and oxic section.

关 键 词：复合式 缺氧/好氧 脱氮 短程硝化-反硝化 同步硝化-反硝化 

分 类 号：X505[环境科学与工程—环境工程]