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
来源：
BIORESOURCE TECHNOLOGY | 2023年 / 381卷
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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