The fate of ammonium in integrated vertical-flow constructed wetlands using stable isotope technique

• Autorzy: Hu Y. , He F. , Wang L. , Sun J. , Huang T. , Wu Z.
• Języki publikacji: EN

Abstrakty

EN

The fate of ammonium (NH₄+) was investigated using the 15N tracer stable isotope technique in integrated vertical-flow constructed wetlands (IVCWs). Two types of IVCW systems were built: unplanted IVCWs (control) and planted IVCWs. The results showed that a high NH₄+ removal efficiency (95.4%) in the planted IVCWs. Plants not only removed NH₄+ by direct uptake (13.6±0.7%) but also improved the NH₄+removal capacity of IVCWs, compared with the control. Besides plant uptake, microbial conversion was the dominant mechanism of NH₄ + removal in IVCWs, and a large proportion (75.2-85.6%) of added NH₄+ may be permanently removed via anammox and nitrification-denitrification processes in IVCWs.

• Wydawca: -
• Czasopismo: Polish Journal of Environmental Studies
• Rocznik: 2016
• Tom: 25
• Numer: 3
• Opis fizyczny: p.1027-1032,fig.,ref.

Twórcy

autor

Hu Y.

• State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
• University of Chinese Academy of Sciences, Beijing 100049, China

autor

He F.

• State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China

autor

Wang L.

• State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
• University of Chinese Academy of Sciences, Beijing 100049, China

autor

Sun J.

• State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
• University of Chinese Academy of Sciences, Beijing 100049, China

autor

Huang T.

• State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
• University of Chinese Academy of Sciences, Beijing 100049, China

autor

Wu Z.

• State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China

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Identyfikatory

DOI

10.15244/pjoes/61534