Interactive effect of carbon source with influent COD/N on nitrogen removal and microbial community structure in subsurface flow constructed wetlands
文献类型： 外文期刊
作者： Huang, Lei 1 ; Wang, Ning 1 ; Deng, Chaoren 1 ; Liang, Yinkun 1 ; Wang, Qinghua 1 ; Liu, Maolin 1 ; Chen, Yucheng 1 ;
作者机构： 1.Southwest Univ, Coll Resource & Environm, Key Lab Three Gorges Reservoir Reg Ecoenvironm, Minist Educ, Chongqing 400715, Peoples R China
2.Chongqing Key Lab Agr Resources & Environm, Chongqing 400716, Peoples R China
关键词： Constructed wetland; Carbon source; Influent COD/N ratio; Interactive effect; Nitrogen removal; Phospholipid fatty acid; Bacteria and fungi
期刊名称：JOURNAL OF ENVIRONMENTAL MANAGEMENT （ 影响因子：8.0； 五年影响因子：7.9 ）
ISSN： 0301-4797
年卷期： 2019 年 250 卷
页码：
收录情况： SCI
摘要： Carbon source and influent COD/N (chemical oxygen demand: total nitrogen) pose distinct effects on nitrogen removal efficiency and microbial community structure of constructed wetlands. To investigate the interactive effect of carbon source with COD/N on nitrogen removal and microbial community structure in subsurface flow constructed wetlands, glucose (C6H12O6) and sodium acetate (C2H3NaO2) were used to determine five COD/N ratios in nine groups of constructed wetlands divided into glucose constructed wetlands and sodium acetate constructed wetlands. Results showed that efficiency in COD removal increased with COD/N, and peak value reached 92.7%. Interactive effect of carbon source with COD/N on system pH and ammonium removal was notably significant. Differences in ammonium removal performance between treatments were achieved by the variation of influent COD/N ratio and the change of system pH resulted from different carbon sources, and the result suggested that glucose was a better choice at high COD/N ratio. System microbial community structure was significantly affected by carbon source, influent COD/N ratio and their interaction. Microbial biomass in constructed wetlands significantly increased with increasing COD/N ratio. Higher density and diversity of fungus were observed in glucose constructed wetlands, particularly at COD/N ratio of 7 and 10.
- 相关文献
作者其他论文 更多>>
-
Application of iron carbon in constructed wetlands with different structures: Integrated or separate type?
作者：Wang, Qinghua;Yang, Zhimin;Pu, Zhenbin;Cheng, Lei;Chen, Yucheng;Huang, Lei;Wang, Qinghua;Yang, Zhimin;Pu, Zhenbin;Cheng, Lei;Chen, Yucheng;Huang, Lei;Huang, Lei
关键词：Constructed wetland; Greenhouse gas; Iron-carbon; Microbial community; Functional gene
-
Manure application increases soil doxycycline and zinc levels and resistance gene abundance
作者：Zhao, Jian;He, Jiangjie;Han, Yurou;Liang, Junwei;Chen, Yucheng;Xu, Weihong;Zhang, Yimo;Liu, Jizhen;Huang, Qizhong
关键词：Doxycycline; Zinc; Vegetables; Soil enzymes; Microbial diversity; Resistance genes
-
Vertical migration of bacteria bearing antibiotic resistance genes and heavy metal resistance genes through a soil profile as affected by manure
作者：Liang, Junwei;Han, Yurou;Zhao, Jian;He, Jiangjie;Chen, Yucheng;Xu, Weihong;Huang, Qizhong;Zhang, Yimo;Liu, Jizhen
关键词：Chicken manure; Resistance genes; Bacteria; Antibiotics; Heavy metals
-
Biological mechanisms affecting the release of greenhouse gases from microbial fuel cell-constructed wetland by simultaneously altering structure and electron shuttles
作者：Wang, Qinghua;Liang, Yayi;Tang, Jiankang;Pu, Zhenbin;Chen, Yucheng;Huang, Lei;Wang, Qinghua;Liang, Yayi;Tang, Jiankang;Pu, Zhenbin;Chen, Yucheng;Huang, Lei;Huang, Lei
关键词：Single/double chamber microbial fuel cell; Constructed wetland; Greenhouse gas; Microbial community; Functional gene
-
Mechanisms of microbial fuel cells alleviating bio-clogging in constructed wetlands
作者：Jiang, Chunli;Zhong, Hui;Jin, Yinie;Xiong, Haifeng;Wang, Qinghua;Xiao, Jun;Huang, Lei;Jiang, Chunli;Zhong, Hui;Jin, Yinie;Xiong, Haifeng;Wang, Qinghua;Xiao, Jun;Huang, Lei;Huang, Lei;Xu, Yufeng
关键词：Microbial fuel cells; Constructed wetlands; Biological blockage; Microbial; Extracellular polymeric substances
-
Simultaneous change of microworld and biofilm formation in constructed wetlands filled with biochar
作者：Zhong, Hui;Jiang, Chunli;He, Xi;He, Jinke;Zhao, Yaqi;Chen, Yucheng;Huang, Lei;Zhong, Hui;Jiang, Chunli;He, Xi;He, Jinke;Zhao, Yaqi;Chen, Yucheng;Huang, Lei;Huang, Lei;Huang, Lei
关键词：Constructed wetland; Biochar; Biofilm; Extracellular polymeric substance; Extracellular protein
-
Greenhouse gas emissions from rotating biological contactors combined with hybrid constructed wetlands treating polluted river
作者：Xiong, Haifeng;Hu, Ning;Liang, Yinkun;Wang, Qinghua;Jiang, Chunli;Yang, Zhimin;Huang, Lei;Xiong, Haifeng;Hu, Ning;Liang, Yinkun;Wang, Qinghua;Jiang, Chunli;Yang, Zhimin;Huang, Lei;Huang, Lei
关键词：Rotating biological contactors; Hybrid constructed wetlands; Pollutant removal; Greenhouse gases emissions; Microbial communities
