Partition of Anammox and Nitrifiers Through Bio-Carriers for Full-Scale Sidestream Partial Nitrification-Anammox Plant

被引：5
|
作者：
Xu, Jinliang [1 ,2 ]
Cui, Qingjie [3 ]
Bu, Cuina [1 ]
Ismail, Sherif [1 ,4 ]
Ni, Shou-Qing [1 ,2 ]
机构：
[1] Shandong Univ, Sch Environm Sci & Engn, Qingdao, Peoples R China
[2] Shandong Univ, Suzhou Res Inst, Suzhou, Peoples R China
[3] Shandong Elect Power Engn Consulting Inst Ltd SDE, Dept Mech & Environm Protect, Jinan, Peoples R China
[4] Zagazig Univ, Environm Engn Dept, Zagazig, Egypt
来源：
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY | 2022年 / 10卷
基金：
中国国家自然科学基金;
关键词：
partial nitrification; anammox; bio-carriers; suspended sludge; biofilm; PARTIAL NITRITATION; OXIDIZING BACTERIA; AMMONIUM OXIDATION; NITROGEN REMOVAL; START-UP; LEACHATE; BIOFILM; REACTOR; QUANTIFICATION; EXPERIENCES;
D O I：
10.3389/fbioe.2022.819937
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
This study assessed the activity and community structure in different types of sludge to reveal the partition mechanism of anammox and nitrifiers in a full-scale partial nitrification-anammox plant. Batch experiments confirmed that suspended sludge had higher partial nitrification capacity, and biofilm sludge had higher anammox activity, 16.9 times higher than suspended sludge. qPCR analysis confirmed that the amoA gene was mainly present in suspended sludge, and the highest abundance of the Amx gene was observed in biofilm sludge, reaching 1.01 x 10(7) copies/ng DNA. High-throughput results revealed that Nitrosomonas was the main ammonia-oxidizing bacteria with high activity in suspended sludge, and Candidatus Brocadia had the highest abundance of 13.4% in biofilm sludge. This is the exploration of the microbial community of three different sludge types in the full-scale sidestream PN/A system for the first time, which can guide the construction and replication of full-scale PN/A plants.
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页数：9
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