Effect of temperature on microorganisms and nitrogen removal in a multi-stage surface flow constructed wetland

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dc.contributor.authorWang, Huiyong
dc.contributor.authorXu, Yongxin
dc.contributor.authorChai, Beibei
dc.date.accessioned2023-05-02T12:57:27Z
dc.date.available2023-05-02T12:57:27Z
dc.date.issued2023
dc.description.abstractThe effect of low temperature on microbial nitrogen metabolism in constructed wetlands has yet to be extensively investigated. In this study, we analyzed the effects of temperature changes on nitrogen-associated microorganisms and nitrogen metabolism functional genes in a multi-stage surface flow constructed wetland (MSSFCW) using metagenomic sequencing. The treatment of polluted river water in the MSSFCW, which had a mean water temperature (MWT) of ≤17 °C, resulted in a low removal efficiency (RE) for total nitrogen (TN; average RE: 23.05% at 1–17 °C) and nitrate nitrogen (NO3−-N; average RE: −2.41% at 1–17 °C). Furthermore, at a MWT of ≤11 °C, the REs were low for ammonium nitrogen (NH4+-N; average RE: 67.92% at 1–11 °C) and for chemical oxygen demand (COD; average RE: 27.45% at 1–11 °C). At 0.24 m3 m−2 d−1 influent load, the highest REs for TN (66.84%), NO3−-N (74.90%), NH4+-N (83.93%), and COD (52.97%) occurred in July and August, when water temperatures were between 26 and 28 °C.en_US
dc.identifier.citationWang, H. et al. (2023). Effect of temperature on microorganisms and nitrogen removal in a multi-stage surface flow constructed wetland. Water (Switzerland), 15(7), 1256. https://doi.org/10.3390/w15071256en_US
dc.identifier.issn2073-4441
dc.identifier.urihttps://doi.org/10.3390/w15071256
dc.identifier.urihttp://hdl.handle.net/10566/8884
dc.language.isoenen_US
dc.publisherMDPIen_US
dc.subjectGenesen_US
dc.subjectMetabolismen_US
dc.subjectMicroorganismsen_US
dc.subjectWater qualityen_US
dc.subjectClimate changeen_US
dc.titleEffect of temperature on microorganisms and nitrogen removal in a multi-stage surface flow constructed wetlanden_US
dc.typeArticleen_US

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