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Improving stability and nitrogen removal performance of pilot-scale autotrophic process for mature landfill leachate treatment utilizing in-situ organics
被引:2
|作者:
Li, Yonggan
[1
,2
]
Chen, Zhenguo
[3
]
Zhou, Songwei
[4
]
Fan, Junhao
[4
]
Huang, Linxiang
[1
,2
]
Deng, Zexi
[1
,2
]
Zhang, Chuchu
[1
,2
]
Wang, Xiaojun
[1
,2
,4
]
机构:
[1] South China Univ Technol, Sch Environm & Energy, Guangzhou 510006, Peoples R China
[2] Minist Educ, Key Lab Pollut Control & Ecosyst Restorat Ind Clus, Guangzhou, Peoples R China
[3] South China Normal Univ, Sch Environm, Guangzhou 510006, Peoples R China
[4] Hua Biotech Co Ltd, Foshan 528300, Peoples R China
关键词:
ANAMMOX;
In -situ carbon source;
Enhanced nitrogen removal;
Microbial community structure;
ANAMMOX PROCESS;
DENITRIFICATION;
NITRIFICATION;
INHIBITION;
AMMONIA;
D O I:
10.1016/j.biortech.2023.129118
中图分类号:
S2 [农业工程];
学科分类号:
0828 ;
摘要:
This study established a stable and efficient pilot-scale denitrification (DN) and partial nitritation (PN) combined with autotrophic nitrogen removal process for mature landfill leachate treatment. A total inorganic nitrogen removal efficiency (TINRE) of 95.3% was achieved without any external carbon source input, including 17.1%, 1.0% and 77.2% of nitrogen removal contributed by the DN, PN and autotrophic processes, respectively. ANAMMOX genus, Ca_Anammoxoglobus (19.4%) was dominant in autotrophic reactor. Moreover, denitrifying bacteria could utilize in-situ organics, including poorly degradable organics, to enhance the nitrogen removal performance of autotrophic process, contributing 3.4% of TINRE. This study provides new insights for the economical, low-carbon, and efficient treatment of mature landfill leachate.
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页数:6
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