Removal of Mercury from Wastewater Using a Constructed Wetland
Removal of mercury from municipal wastewater using a constructed wetland was studied. Wastewater, wetland plant, and sediment samples were analyzed using an advanced mercury analyzer AMA-254. Average concentrations of total mercury in inflow and outflow water were 0.157 and 0.057 µg L<sup>−1&l...
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Croatian Chemical Society
2015-07-01
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doaj-bc85fb66917e427caa123433230529862020-11-24T22:57:09ZengCroatian Chemical SocietyCroatica Chemica Acta0011-16431334-417X2015-07-0188216516910.5562/cca2529141989Removal of Mercury from Wastewater Using a Constructed WetlandJan Šíma0Jiří Krejsa1Lubomír Svoboda2Department of Applied Chemistry, University of South Bohemia, Faculty of Agriculture, Studentská 13, CZ-37005 České Budějovice, Czech RepublicInstitute of Chemistry and Biochemistry, University of South Bohemia, Faculty of Science, Branišovská 31, CZ-37005 České Budějovice, Czech RepublicDepartment of Applied Chemistry, University of South Bohemia, Faculty of Agriculture, Studentská 13, CZ-37005 České Budějovice, Czech RepublicRemoval of mercury from municipal wastewater using a constructed wetland was studied. Wastewater, wetland plant, and sediment samples were analyzed using an advanced mercury analyzer AMA-254. Average concentrations of total mercury in inflow and outflow water were 0.157 and 0.057 µg L<sup>−1</sup>, respectively. Significant fraction of mercury (38.2 %) was removed from wastewater during pretreatment. Mercury concentrations in vegetation (Phragmites australis) varied in the range of 0.0099−0.0105 and 0.0079−0.0086 mg kg<sup>−1</sup> for the above and belowground biomass, respectively. Total mercury concentrations in the constructed wetland sediments were 0.151 and 0.103 mg kg<sup>−1</sup> at distances 1 and 10 m from the inflow zone. Mercury can be precipitated and deposited at the initial part of the wetland bed and thus removed from wastewater. The formation of volatile mercury species is another mechanism of its removal. On the other hand, assimilation of Hg in wetland plants does apparently not contribute to mercury removal from wastewater.http://hrcak.srce.hr/file/209507 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jan Šíma Jiří Krejsa Lubomír Svoboda |
spellingShingle |
Jan Šíma Jiří Krejsa Lubomír Svoboda Removal of Mercury from Wastewater Using a Constructed Wetland Croatica Chemica Acta |
author_facet |
Jan Šíma Jiří Krejsa Lubomír Svoboda |
author_sort |
Jan Šíma |
title |
Removal of Mercury from Wastewater Using a Constructed Wetland |
title_short |
Removal of Mercury from Wastewater Using a Constructed Wetland |
title_full |
Removal of Mercury from Wastewater Using a Constructed Wetland |
title_fullStr |
Removal of Mercury from Wastewater Using a Constructed Wetland |
title_full_unstemmed |
Removal of Mercury from Wastewater Using a Constructed Wetland |
title_sort |
removal of mercury from wastewater using a constructed wetland |
publisher |
Croatian Chemical Society |
series |
Croatica Chemica Acta |
issn |
0011-1643 1334-417X |
publishDate |
2015-07-01 |
description |
Removal of mercury from municipal wastewater using a constructed wetland was studied. Wastewater, wetland plant, and sediment samples were analyzed using an advanced mercury analyzer AMA-254. Average concentrations of total mercury in inflow and outflow water were 0.157 and 0.057 µg L<sup>−1</sup>, respectively. Significant fraction of mercury (38.2 %) was removed from wastewater during pretreatment. Mercury concentrations in vegetation (Phragmites australis) varied in the range of 0.0099−0.0105 and 0.0079−0.0086 mg kg<sup>−1</sup> for the above and belowground biomass, respectively. Total mercury concentrations in the constructed wetland sediments were 0.151 and 0.103 mg kg<sup>−1</sup> at distances 1 and 10 m from the inflow zone. Mercury can be precipitated and deposited at the initial part of the wetland bed and thus removed from wastewater. The formation of volatile mercury species is another mechanism of its removal. On the other hand, assimilation of Hg in wetland plants does apparently not contribute to mercury removal from wastewater. |
url |
http://hrcak.srce.hr/file/209507 |
work_keys_str_mv |
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