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%.
出处
《中国给水排水》
CAS
CSCD
北大核心
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
关键词
SBR
垃圾渗滤液
溶解氧
短程同步硝化反硝化
SBR
landfill leachate
dissolved oxygen
simultaneous nitrification and denitri-fication via nitrite
