晚期垃圾渗滤液厌氧氨氧化脱氮性能及其污泥特性  

Nitrogen Removal Performance and Characteristics of Granular Sludge in ANAMMOX Reactor Fed with Mature Landfill Leachate

作　　者：李芸[1] 李军[1] 陈刚[2] 熊向阳[2] 张彦灼[1] 白志远[2] 苏翌[2] 

机构地区：[1]北京工业大学建筑工程学院,北京市水质科学与水环境恢复工程重点实验室,北京100124 [2]中国城市建设研究院有限公司,北京100012

出　　处：《环境科学研究》2016年第3期411-418,共8页Research of Environmental Sciences

基　　金：国家水体污染控制与治理科技重大专项(2014ZX07201-011);北京市自然科学基金项目(8122005);中国城市建设研究院院级课题项目(Y07H13074)

摘　　要：为研究ANAMMOX（厌氧氨氧化）工艺处理晚期垃圾渗滤液过程中氮转化途径的变化及颗粒污泥特性,采用2套ANAMMOX-UASB生物膜反应器（1#系统和2#系统）分别处理晚期垃圾渗滤液和无机配水,考察两种水质条件下ANAMMOX系统的脱氮性能,并对稳定运行时期两个系统颗粒污泥中ANAMMOX菌活性、硝化活性、反硝化活性及其污泥理化特性进行对比.结果表明：1#系统经过连续培养逐渐适应了晚期垃圾渗滤液,实现了ANAMMOX耦合异养反硝化高效脱氮;稳定期1#系统和2#系统中TN的平均去除率分别为86.66%和76.77%.1#系统和2#系统的颗粒污泥均具有ANAMMOX活性、硝化活性和反硝化活性,1#系统中颗粒污泥ANAMMOX活性和硝化活性较2#系统略有降低,而反硝化活性则大有提高;两个系统中ANAMMOX过程对TN去除速率分别为0.286和0.301 g/（g·d）.1#系统中颗粒污泥呈红褐色,2#系统中颗粒污泥呈砖红色,两个系统中粒径〉1.5～2.5 mm的颗粒污泥所占比例分别为66.10%和50.67%,基本处于传质作用最佳的区间.The nitrogen removal performance of an ANAMMOX-UASB-biofilm system was comparatively investigated in two up-flow anaerobic sludge blanket（ UASB） reactors,one of which was fed with mature landfill leachate polluted water,and the other one fed with inorganic polluted water. ANAMMOX,nitrification,denitrification activity and physical-chemical characteristics of the ANAMMOX granular sludge were studied and contrasted. The results showed that a high nitrogen removal efficiency was achieved through coupling ANAMMOX and denitrification in the 1 # system after continuous cultivation. In the stable stage,86. 66% and 76. 77% of the total nitrogen on average were removed in the 1 # and 2 # systems respectively. ANAMMOX,nitrification and denitrification activity were observed in both the 1# and 2# systems. The ANAMMOX and nitrification activity in the 1# system was lower than that in the 2# system,whereas the denitrification activity in the 1 # system was higher than that in the 2 # system; the TN removal rates of ANAMMOX in the systems were 0. 286 and 0. 301 g/（ g·d） respectively. The color of the granular sludge in the 1 # system changed from brick red to redbrown,and the color of the granular sludge in the 2# system was brick red continuously. The size of the granular sludges in the 1# and 2#systems were mainly between 1. 5 and 2. 5 mm,and the weight proportions were 66. 10% and 50. 67% respectively,which were in the best mass transfer range.

关 键 词：厌氧氨氧化(ANAMMOX) 脱氮 颗粒污泥 晚期垃圾渗滤液 

分 类 号：X703.5[环境科学与工程—环境工程]