SBR反应器短程同步硝化反硝化处理垃圾渗滤液  

Simultaneous Nitrification and Denitrification via Nitrite for Treatment of Landfill Leachate in Sequencing Batch Reactor

作　　者：张绍青[1] 张立秋[1,2] 张朝升[1,2] 赵丽敏[1] 李健平[1] 张丹荣[1] 

机构地区：[1]广州大学土木工程学院,广东广州510006 [2]广州大学教育部广东省珠江三角洲水质安全与保护实验室,广东广州510006

出　　处：《中国给水排水》2014年第3期10-13,18,共5页China Water & Wastewater

基　　金：国家自然科学基金资助项目(51178125;21207023);住房和城乡建设部科技计划项目(2012-K7-4);广州市属高校科研项目(10A056);国家级大学生创新训练项目;广州大学土木工程学院大学生科技创新基金资助项目

摘　　要：采用序批式活性污泥法（SBR）处理垃圾渗滤液，在控制系统温度为（28±1）cc、进水pH值为7．9～8．2、MLSS为4000～4500mg／L，并保持进水COD为900～1000mg／L、NH4＋-N为480～500mg／L的条件下，考察DO对短程硝化反硝化的影响。结果表明，在80～120L／h的曝气量下能快速实现稳定的短程同步硝化反硝化，对NH4^＋-N的平均去除率可达92．5％，NO2-—N的平均积累率为89．3％；系统的最佳曝气量为120I／h，此时对氨氮的去除率为96．9％，亚硝酸盐积累率为97．2％，好氧段对总氮的去除率为74．7％。The effect of DO on simultaneous nitrification and denitrification （SND） via nitrite for treatment of landfill leachate in SBR system was investigated at temperature of （28 ± 1 ） ℃, pH of 7.9 to 8.2, MLSS of 4 000 to 4 500 mg/L, influent COD of 900 to 1 000 mg/L and NH; - N of 480 to 500 mg/L. The results indicated that the SND via nitrite was achieved rapidly at aeration rates of 80 to 120 L/h, the average removal rate of NH4 -N was 92.5% , and the average accumulation rate of NO2 -N was 89.3%. The optimal aeration rate was 120 L/h, the removal rate of NH; -N was 96.9% , the ac- cumulation rate of NOf - N was 97.2% , and the removal rate of TN was 74.7%.

关 键 词：SBR 垃圾渗滤液 溶解氧 短程同步硝化反硝化 

分 类 号：X703[环境科学与工程—环境工程]