Enhanced nitrogen removal using solid carbon source in constructed wetland with limited aeration

被引：94

作者：

Yang, Zhongchen ^{[1
]}

Yang, Luhua ^{[2
]}

Wei, Caijie ^{[3
]}

Wu, Weizhong ^{[1
]}

Zhao, Xufei ^{[1
]}

Lu, Ting ^{[1
]}

机构：

[1] Peking Univ, Coll Environm Sci & Engn, Dept Environm Sci, Beijing 100871, Peoples R China

[2] Helmholtz Zentrum Munchen, Res Unit Comparat Microbiome Anal, Ingolstadter Landstr 1, D-85764 Neuherberg, Germany

[3] Tsinghua Univ, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100084, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2018年 / 248卷

基金：

中国国家自然科学基金;

关键词：

Nitrogen removal; Constructed wetlands; Limited aeration; Solid carbon source; WASTE-WATER TREATMENT; NITRATE REMOVAL; ORGANIC-MATTER; DENITRIFICATION; GROUNDWATER; PERFORMANCE; COMMUNITY; ABUNDANCE; OXYGEN;

D O I：

10.1016/j.biortech.2017.07.188

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

In this study, the performances of nitrogen removal in constructed wetlands using solid carbon source with limited aeration were investigated. The blends of poly-3-hydroxybutyrate-co-3-hydroxyvalerate (PHBV) and polyacetic acid (PLA) were used as the carbon source and biofilm support. The performances of nitrogen removal, microbial abundance and microbial community structure in the biofilm attached on PHBV/PLA were investigated. Higher ammonia removal efficiency (91.00%) and total nitrogen removal efficiency (97.03%) than non-aerated constructed wetland (System NA) were achieved in constructed wetland with limited aeration (System A). The limited aeration decreased the average concentrations of COD in effluent. And, System A had higher microbial abundance than System NA. Pyrosequencing analysis showed that denitrifying bacteria Brevinema (41.85%) and Thiothrix (12.33%) were the predominant genus in the biofilm attached on the carbon source in System NA and System A, respectively.

引用

页码：98 / 103

页数：6

共 45 条

[1] Biodegradable polymers as solid substrate and biofilm carrier for denitrification in recirculated aquaculture systems [J].

Boley, A ;

Müller, WR ;

Haider, G .

AQUACULTURAL ENGINEERING, 2000, 22 (1-2) :75-85

[2] Pyrosequencing reveals microbial community dynamics in integrated simultaneous desulfurization and denitrification process at different influent nitrate concentrations [J].

Chen, Chuan ;

Xu, Xi-Jun ;

Xie, Peng ;

Yuan, Ye ;

Zhou, Xu ;

Wang, Ai-Jie ;

Lee, Duu-Jong ;

Ren, Nan-Qi .

CHEMOSPHERE, 2017, 171 :294-301

[3] Novel predominant archaeal and bacterial groups revealed by molecular analysis of an anaerobic sludge digester [J].

Chouari, R ;

Le Paslier, D ;

Daegelen, P ;

Ginestet, P ;

Weissenbach, J ;

Sghir, A .

ENVIRONMENTAL MICROBIOLOGY, 2005, 7 (08) :1104-1115

[4] Intermittent aeration strategy to enhance organics and nitrogen removal in subsurface flow constructed wetlands [J].

Fan, Jinlin ;

Zhang, Bo ;

Zhang, Jian ;

Huu Hao Ngo ;

Guo, Wenshan ;

Liu, Feifei ;

Guo, Yeye ;

Wu, Haiming .

BIORESOURCE TECHNOLOGY, 2013, 141 :117-122

[5] Simultaneous biological nitrous oxide abatement and wastewater treatment in a denitrifying off-gas bioscrubber [J].

Frutos, Osvaldo D. ;

Quijano, Guillermo ;

Perez, Rebeca ;

Munoz, Raul .

CHEMICAL ENGINEERING JOURNAL, 2016, 288 :28-37

[6] Effect of plant-based carbon sources on denitrifying microorganisms in a vertical flow constructed wetland [J].

Fu, Guiping ;

Huangshen, Linkun ;

Guo, Zhipeng ;

Zhou, Qiaohong ;

Wu, Zhenbin .

BIORESOURCE TECHNOLOGY, 2017, 224 :214-221

[7] Influence of carbon source on nitrate removal of contaminated groundwater in a denitrifying submerged filter [J].

Gómez, MA ;

González-López, J ;

Hontoria-García, E .

JOURNAL OF HAZARDOUS MATERIALS, 2000, 80 (1-3) :69-80

[8]

Hamid A., 2008, NITROGEN PHOSPHORUS

[9] Achieving high-rate autotrophic nitrogen removal via Canon process in a modified single bed tidal flow constructed wetland [J].

Hu, Yuansheng ;

Zhao, Xiaohong ;

Zhao, Yaqian .

CHEMICAL ENGINEERING JOURNAL, 2014, 237 :329-335

[10] How the novel integration of electrolysis in tidal flow constructed wetlands intensifies nutrient removal and odor control [J].

Ju, Xinxin ;

Wu, Shubiao ;

Huang, Xu ;

Zhang, Yansheng ;

Dong, Renjie .

BIORESOURCE TECHNOLOGY, 2014, 169 :605-613

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