Metal biogeochemistry in constructed wetlands based on fluviatile sand and zeolite- and clinopyroxene-dominated lava sand
Abstract For the first time, speciation of Fe, Mn, Zn, Ni, Cu and Pb was determined along the profiles of 8 constructed wetlands (CWs) consisting of fluviatile sand (Fluv), clinopyroxene-dominated lava sand (Cl-LS) and zeolite-dominated lava sand (Ze-LS), aiming at quantifying metal behaviour in CWs...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2017-06-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-017-03055-7 |
| _version_ | 1831706120682471424 |
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| author | Jen-How Huang Sonja Paul Silke Mayer Eloise Moradpour Ralf Hasselbach Reto Gieré Christine Alewell |
| author_facet | Jen-How Huang Sonja Paul Silke Mayer Eloise Moradpour Ralf Hasselbach Reto Gieré Christine Alewell |
| author_sort | Jen-How Huang |
| collection | DOAJ |
| description | Abstract For the first time, speciation of Fe, Mn, Zn, Ni, Cu and Pb was determined along the profiles of 8 constructed wetlands (CWs) consisting of fluviatile sand (Fluv), clinopyroxene-dominated lava sand (Cl-LS) and zeolite-dominated lava sand (Ze-LS), aiming at quantifying metal behaviour in CWs and the impact caused by different filter materials. With the exception of Mn, which underwent reductive dissolution, CWs were sinks for the studied metals. Metal accumulation rates differed in the following order: Ze-LS ≥ Cl-LS > Fluv CWs, reflecting the highest metal adsorption capacity and the lowest hydraulic conductivity of Ze-LS. Sequential extraction data indicated the highest metal mobility (readily mobilised and adsorbed fractions summing up to ~60%) in Fluv CWs, implying a higher risk of metal release into adjacent environments if Fluv from CWs will be improperly disposed after usage. Zinc and Ni were transported into the deeper CW layers to a larger extent than Cu and Pb, reflecting adsorption affinity to all filter materials in the order of Pb > Cu > Zn > Ni. Therefore, understanding metal speciation and mobility in such materials is crucial when they are considered for application as filters in CWs. |
| first_indexed | 2024-12-20T16:33:48Z |
| format | Article |
| id | doaj.art-7c308584a57948d0bc3769f040b91100 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-20T16:33:48Z |
| publishDate | 2017-06-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-7c308584a57948d0bc3769f040b911002022-12-21T19:33:13ZengNature PortfolioScientific Reports2045-23222017-06-017111110.1038/s41598-017-03055-7Metal biogeochemistry in constructed wetlands based on fluviatile sand and zeolite- and clinopyroxene-dominated lava sandJen-How Huang0Sonja Paul1Silke Mayer2Eloise Moradpour3Ralf Hasselbach4Reto Gieré5Christine Alewell6Environmental Geosciences, University of BaselEnvironmental Geosciences, University of BaselEnvironmental Geosciences, University of BaselEnvironmental Geosciences, University of BaselEntsorgungsverband Saar (EVS)Department of Earth and Environmental Science, University of PennsylvaniaEnvironmental Geosciences, University of BaselAbstract For the first time, speciation of Fe, Mn, Zn, Ni, Cu and Pb was determined along the profiles of 8 constructed wetlands (CWs) consisting of fluviatile sand (Fluv), clinopyroxene-dominated lava sand (Cl-LS) and zeolite-dominated lava sand (Ze-LS), aiming at quantifying metal behaviour in CWs and the impact caused by different filter materials. With the exception of Mn, which underwent reductive dissolution, CWs were sinks for the studied metals. Metal accumulation rates differed in the following order: Ze-LS ≥ Cl-LS > Fluv CWs, reflecting the highest metal adsorption capacity and the lowest hydraulic conductivity of Ze-LS. Sequential extraction data indicated the highest metal mobility (readily mobilised and adsorbed fractions summing up to ~60%) in Fluv CWs, implying a higher risk of metal release into adjacent environments if Fluv from CWs will be improperly disposed after usage. Zinc and Ni were transported into the deeper CW layers to a larger extent than Cu and Pb, reflecting adsorption affinity to all filter materials in the order of Pb > Cu > Zn > Ni. Therefore, understanding metal speciation and mobility in such materials is crucial when they are considered for application as filters in CWs.https://doi.org/10.1038/s41598-017-03055-7 |
| spellingShingle | Jen-How Huang Sonja Paul Silke Mayer Eloise Moradpour Ralf Hasselbach Reto Gieré Christine Alewell Metal biogeochemistry in constructed wetlands based on fluviatile sand and zeolite- and clinopyroxene-dominated lava sand Scientific Reports |
| title | Metal biogeochemistry in constructed wetlands based on fluviatile sand and zeolite- and clinopyroxene-dominated lava sand |
| title_full | Metal biogeochemistry in constructed wetlands based on fluviatile sand and zeolite- and clinopyroxene-dominated lava sand |
| title_fullStr | Metal biogeochemistry in constructed wetlands based on fluviatile sand and zeolite- and clinopyroxene-dominated lava sand |
| title_full_unstemmed | Metal biogeochemistry in constructed wetlands based on fluviatile sand and zeolite- and clinopyroxene-dominated lava sand |
| title_short | Metal biogeochemistry in constructed wetlands based on fluviatile sand and zeolite- and clinopyroxene-dominated lava sand |
| title_sort | metal biogeochemistry in constructed wetlands based on fluviatile sand and zeolite and clinopyroxene dominated lava sand |
| url | https://doi.org/10.1038/s41598-017-03055-7 |
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