温度对序批式生物反应器工艺同步硝化反硝化的影响  

Effect of temperature on simultaneous nitrification and denitrification by using sequencing batch reactor

作　　者：张兰河[1,2] 刘洪雷[1] 张海丰[1] 伏向宇[1] 贾艳萍[1] 

机构地区：[1]东北电力大学化学工程学院,吉林吉林132012 [2]城市水资源开发利用(北方)国家工程研究中心,黑龙江哈尔滨150090

出　　处：《化学工程》2011年第4期7-11,16,共6页Chemical Engineering(China)

基　　金：吉林省科技发展计划项目-科技引导计划应用基础研究(20090599)

摘　　要：为了考察不同温度下碳氮质量比w(C/N)和污泥龄(SRT)对同步硝化反硝化(SND)的影响,研究采用序批式生物反应器(SBR)对模拟废水进行了长期连续实验。结果表明:在pH值为7.5—8的条件下,温度为(5±1)℃,当w(C/N)为8、污泥龄为20 d时,总氮反应速率为1.25 mg/(L.h),COD去除率达到60%,氨氮去除率达到38%,总氮去除率达到34%。在温度为(10±2)℃,当w(C/N)为8、污泥龄为15 d时,总氮反应速率为2.06 mg/(L.h),COD去除率达到69%,氨氮去除率达到77%,总氮去除率达到52%。在温度为(20±2)℃,当w(C/N)为10、污泥龄为10 d时,总氮反应速率为3.78 mg/(L.h),COD去除率达到86%,氨氮去除率达到86%,总氮去除率达到70%。在温度为(30±2)℃,当w(C/N)为10、污泥龄为10 d时,总氮反应速率为4.94 mg/(L.h),COD去除率达到91%,氨氮去除率达到93%,总氮去除率达到85%。A biological denitrification experiment was carried out continuously over a long period by using sequencing batch reactor（SBR） to investigate the effect of mass ratio of carbon to nitrogen w（C/N） and sludge age on the simultaneous nitrification and denitrification（SND） at different temperatures.The results show that under the condition of pH 7.5-8,the reaction rate of total nitrogen is 1.25 mg/（L·h）,and the removal efficiency of COD,ammonia nitrogen and total nitrogen is 60%,38% and 34% respectively when w（C/N） is 8 and sludge age is 20 d at（5±1）℃.The reaction rate of total nitrogen is 2.06 mg/（L·h）,and the removal efficiency of COD,ammonia nitrogen and total nitrogen is 69%,77% and 52% respectively when w（C/N） is 8 and sludge age is 15 d at（10±2）℃.The reaction rate of total nitrogen is 3.78 mg/（L·h）,and the removal efficiency of COD,ammonia nitrogen and total nitrogen is 86%,86% and 70% respectively when w（C/N） is 10 and sludge age is 10 d at（20±2）℃.The reaction rate of total nitrogen is 4.94 mg/（L·h）,and the removal efficiency of COD,ammonia nitrogen and total nitrogen is 91%,93% and 85% respectively when w（C/N） is 10 and sludge age is 10 d at（30±2）℃.

关 键 词：温度 SND SBR 碳氮质量比 污泥龄 

分 类 号：X703.1[环境科学与工程—环境工程]