Enhanced simultaneous nitrogen and phosphorus removal from low COD/TIN domestic wastewater through nitritation-denitritation coupling improved anammox process with an optimal Anaerobic/Oxic/Anoxic strategy

被引：57
作者：
Deng, Liyan [1 ]
Peng, Yongzhen [1 ]
Li, Jianwei [1 ]
Gao, Ruitao [1 ]
Li, Wenyu [1 ]
Du, Rui [1 ]
机构：
[1] Beijing Univ Technol, Engn Res Ctr Beijing, Natl Engn Lab Adv Municipal Wastewater Treatment, Beijing 100124, Peoples R China
来源：
BIORESOURCE TECHNOLOGY | 2021年 / 322卷
关键词：
Anaerobic/Oxic/Anoxic (AOA); Nitrogen and phosphorus removal; Nitritation; Mainstream anammox; Domestic wastewater; MAINSTREAM PARTIAL NITRITATION; PARTIAL NITRIFICATION; DISSOLVED-OXYGEN; CARBON SOURCE; REACTOR; DENITRIFICATION; BIOFILM; AMMONIA; BACTERIA; PERFORMANCE;
D O I：
10.1016/j.biortech.2020.124526
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
Advanced nitrogen and phosphorus removal in a single-stage suspending-sludge system was achieved by employing a novel Anaerobic/Oxic/Anoxic (AOA) strategy over 200 days. Satisfactory total inorganic nitrogen (TIN) removal efficiency of 90.4% was achieved and effluent phosphorus was below 0.5 mg/L when treating domestic wastewater with the chemical oxygen demand (COD)/TIN as low as 2.98 +/- 1.26. Stable nitritation was maintained with the ammonia residual and low dissolved oxygen of 0.2-0.5 mg/L at aerobic stage following by a post anoxic stage. The much higher activity of ammonia oxidation bacteria (12.99 mgN/gVSS/h) was achieved than the nitrite oxidation bacteria (0.09 mgN/gVSS/h). Notably, improved anammox performance was obtained without initial inoculation, contributing 47.4% to TIN removal. The abundance of Nitrosomonas increased from 0.12% to 0.95% (P < 0.001) and self-enrichment of anammox bacteria Ca. Brocadia was confirmed. It provided new insight into the advanced nutrient removal with comprehensible regulation and less aeration requirement.
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页数：8
相关论文
共 47 条
[1]   Success of mainstream partial nitritation/anammox demands integration of engineering, microbiome and modeling insights [J].
Agrawal, Shelesh ;
Seuntjens, Dries ;
De Cocker, Pieter ;
Lackner, Susanne ;
Vlaeminck, Siegfried E. .
CURRENT OPINION IN BIOTECHNOLOGY, 2018, 50 :214-221
[2]   Assessment of operational conditions towards mainstream partial nitritation-anammox stability at moderate to low temperature: Reactor performance and bacterial community [J].
Akaboci, Tiago R. V. ;
Gich, Frederic ;
Ruscalleda, Mael ;
Dolors Balaguer, M. ;
Colprim, Jesus .
CHEMICAL ENGINEERING JOURNAL, 2018, 350 :192-200
[3]  
APHA (American Public Health Association), 1998, STANDARD METHODS EXA
[4]  
Björnsson L, 2002, MICROBIOL-SGM, V148, P2309, DOI 10.1099/00221287-148-8-2309
[5]   Microbial characterization of aggregates within a one-stage nitritation-anammox system using high-throughput amplicon sequencing [J].
Chu, Zhao-rui ;
Wang, Ke ;
Li, Xiang-kun ;
Zhu, Meng-ting ;
Yang, Liu ;
Zhang, Jie .
CHEMICAL ENGINEERING JOURNAL, 2015, 262 :41-48
[6]   Modes of operation and pH control as enhancement factors for partial nitrification with oxygen transport limitation [J].
Ciudad, G. ;
Gonzalez, R. ;
Bornhardt, C. ;
Antileo, C. .
WATER RESEARCH, 2007, 41 (20) :4621-4629
[7]   Partial nitrification of high ammonia concentration wastewater as a part of a shortcut biological nitrogen removal process [J].
Ciudad, G ;
Rubilar, O ;
Muñoz, P ;
Ruiz, G ;
Chamy, R ;
Vergara, C ;
Jeison, D .
PROCESS BIOCHEMISTRY, 2005, 40 (05) :1715-1719
[8]   Flexible Nitrite Supply Alternative for Mainstream Anammox: Advances in Enhancing Process Stability [J].
Du, Rui ;
Cao, Shenbin ;
Zhang, Hanyu ;
Li, Xiangchen ;
Peng, Yongzhen .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2020, 54 (10) :6353-6364
[9]   Partial denitrification providing nitrite: Opportunities of extending application for anammox [J].
Du, Rui ;
Peng, Yongzhen ;
Ji, Jiantao ;
Shi, Liangliang ;
Gao, Ruitao ;
Li, Xiangchen .
ENVIRONMENT INTERNATIONAL, 2019, 131
[10]   Combined Partial Denitrification (PD)-Anammox: A method for high nitrate wastewater treatment [J].
Du, Rui ;
Cao, Shenbin ;
Peng, Yongzhen ;
Zhang, Hanyu ;
Wang, Shuying .
ENVIRONMENT INTERNATIONAL, 2019, 126 :707-716
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