两种填料生物膜工艺脱氮效果的比较研究  

COMPARISON STUDY ON NITROGEN REMOVAL EFFECT OF TWO BIOFILM REACTORS WITH DIFFERENT PADDINGS

作　　者：史乐君[1] 曹文平[1] 张永明[2] 

机构地区：[1]平顶山工学院市政工程系,河南平顶山467044 [2]上海师范大学环境工程系,上海200234

出　　处：《环境工程》2008年第3期78-81,共4页Environmental Engineering

基　　金：江西省自然科学基金项目(9920015)

摘　　要：以两种不同填料所组成的生物膜反应器(1号和2号反应器)为研究对象,比较了两个生物膜反应器去除有机物、脱氮能力,分析了其影响因素。研究结果表明:在进水水质、停留时间等条件完全一致的情况下,2号反应器COD、氨氮的平均去除率比1号反应器分别高出了29.88%和19.68%,这是因为陶粒的比表面积较蜂窝陶瓷有绝对优势所致。但是2号反应器的总氮去除率比1号反应器要低7.11%,通过研究两个反应器中硝态氮浓度和生物相分析发现具有较大差距。填料作为生物膜工艺中的核心,其材料、结构等影响到生物膜的性质和反应器内水力学特性,是决定生物膜工艺处理效果的关键因素。Two biofilm reactors(No.1 and No.2)with different paddings were used to investigate the capacity of removing organic pollutant and nitrogen of the reactors and analyse the effect factors.The results show that COD and ammonium average removal rate of No.2 reactor is 29.88% and 19.68% higher than No.1 reactor on the same conditions,whose cause is that ceramisites have more surface area than ceramic honeycomb,while nitrogen removal rate of No.2 reactor is 7.11% lower than No.1 reactor.Moreover,the concentration of nitrite and nitric and biological phase are further researched of two bioreactors and found out greater difference

关 键 词：蜂窝陶瓷 陶粒 脱氮 硝态氯 生物相 水力学特性 

分 类 号：X703[环境科学与工程—环境工程]