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.

引用

页数：6

共 44 条

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