淀粉基可生物降解载体在同步硝化反硝化中的应用  

Application of starch based degradable carrier in simultaneous nitrification and denitrification

作　　者：张凤君[1] 刘佳泓[1] 马玖彤[2] 回进[1] 

机构地区：[1]吉林大学环境与资源学院,长春130026 [2]吉林大学化学学院,长春130026

出　　处：《吉林大学学报（工学版）》2008年第2期319-322,共4页Journal of Jilin University:Engineering and Technology Edition

基　　金：吉林省科技厅项目(20040577);吉林省环保局项目(2004-11)

摘　　要：针对污水生物脱氮过程低C／N的问题，采用淀粉基可生物降解载体进行生物膜脱氮研究，考察了pH、DO、温度等因素对同步硝化反硝化的影响。结果表明：在C／N=4时，淀粉基可生物降解载体可以为反硝化菌提供充足的有机碳源。在pH=8-8．5、DO=1mg／L、T=28℃时，氨氮及总氮去除率分别可以达到93％和76％。To overcome the low C/N ratio in bio-denitrification process of wastewater treatment, the removal of NH4^＋-N by biofilm with starch based biodegradable carrier was studied. Several factors that affect simultaneous nitrification and denitrification, such as pH, DO and temperature, were investigated. Results show that, at C/N = 4,the starch based biodegradable carrier can provide plenty organic carbon source to denitrify microorganism. Under the conditions of pH = 8-8.5, DO= 1 mg/L and T = 28℃, the removal efficiencies of NH3-N and TN are 93% and 76% respectively.

关 键 词：环境工程学 可生物降解 载体 同步硝化反硝化 NH4^+-N 

分 类 号：X703[环境科学与工程—环境工程]