Removal of Selected Metals from Wastewater Using a Constructed Wetland

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12220%2F16%3A43891189" target="_blank" >RIV/60076658:12220/16:43891189 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1002/cbdv.201500189" target="_blank" >http://dx.doi.org/10.1002/cbdv.201500189</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/cbdv.201500189" target="_blank" >10.1002/cbdv.201500189</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Removal of Selected Metals from Wastewater Using a Constructed Wetland

Popis výsledku v původním jazyce

Removal of selected metals from municipal wastewater using a constructed wetland with a horizontal subsurface flow was studied. The objective of the work was to determine the efficiency of Cu, Zn, Ni, Co, Sr, Li, and Rb removal, and to describe the main removal mechanisms. The highest removal efficiencies were attained for zinc and copper (89.8 and 81.5%, respectively). It is apparently due to the precipitation of insoluble sulfides (ZnS, CuS) in the vegetation bed where the sulfate reduction takes place. Significantly lower removal efficiencies (43.9, 27.7, and 21.5%) were observed for Li, Sr, and Rb, respectively. Rather, low removal efficiencies were also attained for Ni and Co (39.8 and 20.9%). However, the concentrations of these metals in treated water were significantly lower compared to Cu and Zn (e.g., 2.8 +/- 0.5 and 1.7 +/- 0.3 mu g/l for Ni at the inflow and outflow from the wetland compared to 27.6 +/- 12.0 and 5.1 +/- 4.7 mu g/l obtained for Cu, respectively). The main perspective of the constructed wetland is the removal of toxic heavy metals forming insoluble compounds depositing in the wetland bed. Metal uptake occurs preferentially in wetland sediments and is closely associated with the chemism of sulfur and iron.

Název v anglickém jazyce

Removal of Selected Metals from Wastewater Using a Constructed Wetland

Popis výsledku anglicky

Removal of selected metals from municipal wastewater using a constructed wetland with a horizontal subsurface flow was studied. The objective of the work was to determine the efficiency of Cu, Zn, Ni, Co, Sr, Li, and Rb removal, and to describe the main removal mechanisms. The highest removal efficiencies were attained for zinc and copper (89.8 and 81.5%, respectively). It is apparently due to the precipitation of insoluble sulfides (ZnS, CuS) in the vegetation bed where the sulfate reduction takes place. Significantly lower removal efficiencies (43.9, 27.7, and 21.5%) were observed for Li, Sr, and Rb, respectively. Rather, low removal efficiencies were also attained for Ni and Co (39.8 and 20.9%). However, the concentrations of these metals in treated water were significantly lower compared to Cu and Zn (e.g., 2.8 +/- 0.5 and 1.7 +/- 0.3 mu g/l for Ni at the inflow and outflow from the wetland compared to 27.6 +/- 12.0 and 5.1 +/- 4.7 mu g/l obtained for Cu, respectively). The main perspective of the constructed wetland is the removal of toxic heavy metals forming insoluble compounds depositing in the wetland bed. Metal uptake occurs preferentially in wetland sediments and is closely associated with the chemism of sulfur and iron.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DJ - Znečištění a kontrola vody

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Chemistry &amp; Biodiversity

ISSN

1612-1872

e-ISSN

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Svazek periodika

13

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

9

Strana od-do

582-590

Kód UT WoS článku

000378651100011

EID výsledku v databázi Scopus

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