Characteristics of granular sludge and nitrogen removal performancein ANAMMOX-UASB system fed with mature landfill leachate

被引：0
作者：
Li Y. [1 ,2 ]
Zhang M. [1 ,2 ]
Xiong X. [3 ]
Chen G. [3 ]
Li J. [1 ,2 ]
Zhang Y. [1 ,2 ]
Song W. [3 ]
Wang M. [3 ]
机构：
[1] College of Architecture and Civil Engineering, Beijing University of Technology, Beijing
[2] Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing
[3] China Urban Construction Design and Research Institute Co., Ltd., Beijing
来源：
Dongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Southeast University (Natural Science Edition) | 2016年 / 46卷 / 01期
关键词：
Anaerobic ammonia oxidation; Granular sludge; Mature landfill leachate; Nitrogen removal;
D O I：
10.3969/j.issn.1001-0505.2016.01.028
中图分类号：
学科分类号：
摘要：
Taking the mature landfill leachate as the research object, the nitrogen removal performance of the ANAMMOX-UASB (anaerobic ammonia oxidation up-flow anaerobic sludge blanket) system, the ANAMMOX granular sludge characteristics, and the changes of its size distributions were investigated. The results show that the ANAMMOX-UASB system can achieve efficient nitrogen removal in mature landfill leachate. At the stable stage, the average removal rates of NH4+-N, NO2--N and TN were 96%, 95% and 87%, respectively. The activity of ANAMMOX granular sludge was very well, and ANAMMOX still was the main way of nitrogen removal, but there was also nitrogen removal by heterotrophic denitrification simultaneously in the system. Moreover, aerobic ammonia oxidation and nitrite oxidation existed in the system, and their activity were 0.031 and 0.010 g/(g·d), respectively. The color of granular sludge changed from brick red to red-brown, and the average size of granular sludge changed from small to large. At the stable stage, the proportion of granular sludge size exceeding 1.5 mm was 81%. There were spherical bacteria, rod-shaped bacteria and filamentous bacteria on the granular sludge surface. © 2016, Editorial Department of Journal of Southeast University. All right reserved.
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页码：171 / 178
页数：7
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