硝化颗粒污泥硝化作用的基质抑制研究  

Study on the Nitrification Inhibition by Substrate in Nitrifying Granules

作　　者：魏翔[1] 任洪强[1] 袁粒[1] 张蓉蓉[1] 

机构地区：[1]南京大学环境学院,污染控制与资源化研究国家重点实验室,江苏南京210093

出　　处：《食品与生物技术学报》2007年第4期73-76,共4页Journal of Food Science and Biotechnology

基　　金：江苏省社会发展项目(BS.2005050).

摘　　要：利用序批式呼吸运动计量法研究了硝化颗粒污泥硝化作用的基质抑制及其动力学模型。实验结果表明:随着基质质量浓度的逐渐升高,亚硝化速率和硝化速率都呈先增后降的趋势,然而即使在较高的基质质量浓度下,硝化颗粒污泥仍具有较强的基质降解能力;硝化颗粒污泥亚硝化作用和硝化作用的基质抑制都可用Haldane模型较好地进行描述,其相关系数分别为0.96和0.98。The nitrification inhibition by substrate and it＇s kinetic model in nitrifying granules were investigated by using a batch respirometry test. The results showed that both nitritation rate and nitratation rate exhibit similar tendency, which firstly increase and thereafter decline, with increasing of the substrate concentration. However, nitrifying granules still had significant nitrification rate in a relatively high substrate concentration. The nitritation and nitratation inhibition by substrate could be well described by Haldane model and their correlation coefficients were 0. 96 and 0. 98, respectively.

关 键 词：硝化颗粒污泥 硝化作用 抑制 动力学 

分 类 号：X703[环境科学与工程—环境工程]