Nitrification/denitrification shaped the mercury-oxidizing microbial community for simultaneous Hg0 and NO removal

被引：68
作者：
Huang, Zhenshan [1 ]
Wei, Zaishan [1 ]
Xiao, Xiaoliang [1 ]
Tang, Meiru [1 ]
Li, Bolong [1 ]
Zhang, Xiao [1 ]
机构：
[1] Sun Yat Sen Univ, Sch Environm Sci & Engn, Guangdong Prov Key Lab Environm Pollut Control &, Guangzhou 510275, Guangdong, Peoples R China
来源：
BIORESOURCE TECHNOLOGY | 2019年 / 274卷
基金：
中国国家自然科学基金;
关键词：
Hg-0; bio-oxidation; Nitrification/denitrification; Membrane biofilm reactor; Microbial community; Mechanism; NITRIC-OXIDE REMOVAL; MEMBRANE BIOREACTOR; NITROGEN-OXIDES; WASTE-WATER; FLUE-GAS; DENITRIFICATION; PERFORMANCE; NITRIFICATION; RESISTANCE; OXIDATION;
D O I：
10.1016/j.biortech.2018.11.069
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
A denitrifying/nitrifying membrane biofilm reactor for simultaneous removal of Hg-0 and NO was investigated. Hg-0 and NO removal efficiency attained 94.5% and 86%, respectively. The mercury-oxidizing microbial community was significantly shaped by nitrification/denitrification after the supply of gaseous Hg-0 and NO continuously. Dominant genera Rhodanobacter and Nitrosomonas participated in Hg-0 oxidation, nitrification and denitrification simultaneously. Hg-0 oxidizing bacteria (Gallionella, Rhodanobacter, Ottowia, Nitrosomonas and etc.), nitrifying bacteria (Nitrosomonas, Rhodanobacter, Diaphorobacte and etc.) and denitrifying bacteria (Nitrosomonas, Rhodanobacter, Castellaniella and etc.) co-existed in the MBfR, as shown by metagenomic sequencing. X-ray photoelectron spectroscopy (XPS) and high performance liquid chromatography-inductively coupled plasma mass spectrometry (HPLC-ICP-MS) confirmed the formation of a mercuric species (Hg2+) from mercury bio-oxidation. Mechanism of mercury oxidation can be described as the bacterial oxidation of Hg-0 in which Hg-0 serves as electron donor, NO serves as electron donor in nitrification and electron acceptor in denitrification, oxygen serves as electron acceptor.
引用
收藏
页码：18 / 24
页数：7
相关论文
共 45 条
[1]   Bacterial mercury resistance from atoms to ecosystems [J].
Barkay, T ;
Miller, SM ;
Summers, AO .
FEMS MICROBIOLOGY REVIEWS, 2003, 27 (2-3) :355-384
[2]   Effects of gas flow-rate and inlet concentration on nitric oxide removal in an autotrophic biofilter [J].
Chen, JM ;
Wang, JD ;
Ma, JF .
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, 2006, 81 (05) :812-816
[3]   Abiotic and biological mechanisms of nitric oxide removal from waste air in biotrickling filters [J].
Chen, JM ;
Ma, JF .
JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION, 2006, 56 (01) :32-36
[4]   Oxidation of Hg(0) to Hg(II) by diverse anaerobic bacteria [J].
Colombo, Matthew J. ;
Ha, Juyoung ;
Reinfelder, John R. ;
Barkay, Tamar ;
Yee, Nathan .
CHEMICAL GEOLOGY, 2014, 363 :334-340
[5]  
De J, 2014, ELSEV INSIGHT, P137, DOI 10.1016/B978-0-12-800021-2.00006-6
[6]   Comparison of nitrogen removal and microbial properties in solid-phase denitrification systems for water purification with various pretreated lignocellulosic carriers [J].
Feng, Lijuan ;
Chen, Kun ;
Han, Doudou ;
Zhao, Jing ;
Lu, Yi ;
Yang, Guangfeng ;
Mu, Jun ;
Zhao, Xiangjiong .
BIORESOURCE TECHNOLOGY, 2017, 224 :236-245
[7]   Aerobic Mercury-resistant bacteria alter Mercury speciation and retention in the Tagus Estuary (Portugal) [J].
Figueiredo, Neusa L. ;
Canario, Joao ;
O'Driscoll, Nelson J. ;
Duarte, Aida ;
Carvalho, Cristina .
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY, 2016, 124 :60-67
[8]   Ammonia-oxidizing microbial communities in reactors with efficient nitrification at low-dissolved oxygen [J].
Fitzgerald, Colin M. ;
Comejo, Pamela ;
Oshlag, J. Zachary ;
Noguera, Daniel R. .
WATER RESEARCH, 2015, 70 :38-51
[9]   Mercury Resistance and Mercuric Reductase Activities and Expression among Chemotrophic Thermophilic Aquificae [J].
Freedman, Zachary ;
Zhu, Chengsheng ;
Barkay, Tamar .
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 2012, 78 (18) :6568-6575
[10]   The influence of complex fermentation broth on denitrification of saline sewage in constructed wetlands by heterotrophic nitrifying/aerobic denitrifying bacterial communities [J].
Fu, Guiping ;
Yu, Tianyu ;
Huangshen, Linkun ;
Han, Jingyi .
BIORESOURCE TECHNOLOGY, 2018, 250 :290-298
12345