Start-up and characterization of nitrogen and COD removal from mature landfill leachate via CANON process

被引：0
|
作者：
Zhang F. [1 ]
Wang S. [1 ]
Peng Y. [1 ]
Miao L. [1 ]
Cao T. [1 ]
Wang Z. [1 ]
机构：
[1] Engineering Research Center of Beijing, Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing
来源：
Wang, Shuying (wsy@bjut.edu.cn) | 2016年 / Materials China卷 / 67期
关键词：
Anaerobic ammonium oxidizing bacteria; Anammox; CANON; Intermittent aeration/anaerobic; Landfill leachate; Partial nitrification;
D O I：
10.11949/j.issn.0438-1157.20160144
中图分类号：
学科分类号：
摘要：
The mature landfill leachate from sanitary landfill is difficult to treat because of complicated composition, high concentration of ammonia and low C/N. During this study, a CANON (completely autotrophic nitrogen removal over nitrite) process with an intermittent aeration/anaerobic mixing operational mode was applied to remove nitrogen from mature landfill leachate. After domestication of 130 d, the system was stable with the effluent COD, N4+-N and TN (mg·L-1) of 407±14, 8±4 and 19±4 when the influent COD, N4+-N and TN (mg·L-1) were 2050±250, 1625±75 and 2005±352, respectively. Nitrogen removal from mature landfill leachate could be realized via intermittent aeration/anaerobic mixing CANON process with 98.76% of total nitrogen removal efficiency. Besides, the FISH (Fluorescence in situ hybridization) results showed that under this operational mode, both aerobic ammonium oxidation bacteria and anaerobic ammonium oxidizing bacteria accounted for 19.5%±1.3% and 42.7%±5.02%, respectively, which provided a reference for CANON treating mature landfill leachate in engineering application. © All Right Reserved.
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页码：3910 / 3918
页数：8
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