文献类型：期刊文献

英文题名：Long-term performance of nutrient removal in an integrated constructed wetland

作者：Zhu, Yinuo[1,2,3] Cui, Lijuan[1,2,3] Li, Jing[1,2,3] Wang, Rumiao[1,2,3] Vymazal, Jan[4] Li, Wei[1,2,3] Lei, Yinru[1,2,3] Zhang, Manyin[1,2,3] Hao, Ting[1,2,3] Wei, Jiaming[5]

第一作者：Zhu, Yinuo

通信作者：Cui, LJ[1]

机构：[1]Chinese Acad Forestry, Inst Wetland Res, Beijing 100091, Peoples R China;[2]Beijing Key Lab Wetland Ecol Funct & Restorat, Beijing 100091, Peoples R China;[3]Beijing Hanshiqiao Natl Wetland Ecosyst Res Stn, Beijing 101399, Peoples R China;[4]Czech Univ Life Sci Prague, Fac Environm Sci, Kamycka 129, Prague 16521 6, Czech Republic;[5]Environm Remediat Co Ltd, Natl Engn Lab Site Remediat Technol, Beijing Construct Engn Grp, Beijing 100015, Peoples R China

年份：2021

卷号：779

外文期刊名：SCIENCE OF THE TOTAL ENVIRONMENT

收录：;EI(收录号：20211210106842);Scopus(收录号：2-s2.0-85102630558);WOS:【SCI-EXPANDED(收录号:WOS:000655684400002)】；

基金：This work was supported by the Beijing Natural Science Foundation (8214067) ; the Fundamental Research Funds of Chinese Academy of Forestry (CAFYBB2020QB008) ; and the Fundamental Research Funds for the Central Nonprofit Research Institution of the Chinese Academy of Forestry (CAFYBB2018GB001) .

语种：英文

外文关键词：Constructed wetland; Long-term performance; Nitrogen and phosphorus removal; Bacterial community

摘要：Constructed wetlands (CWs) have been regarded as efficient technologies for both wastewater treatment and reuse of water resources. Most studies on CW treatment efficiency are limited to a short-term perspective, and there are still many unknowns about the long-term performance of CWs. Here we evaluated the performance of an integrated CW that has been in operation for more than ten years. The average removal rates of TN and TP were maintained at 53.6% and 67.3% over 10 years, respectively. The annual mass reductions in TN and TP reached 937.5 kg ha(-1) yr(-1) and 303.2 kg ha(-1) yr(-1), respectively. In addition, TN removal rate was significantly higher in summer and autumn than those in spring, yet there was no seasonal difference in TP removal. The bacterial richness and diversity in summer and autumn were higher than those in spring. TN and TOC not only determine the bacterial community structure, but also affect the removal efficiency of CW. Denitrification and dephosphorization microorganisms were enriched and accounted for a considerable proportion (21.14-52.85%) in the bacterial community. In addition, the relative abundance of Pseudomonas was significantly positively related with the rate of TN and TP removal. (C) 2021 Published by Elsevier B.V.