Preliminary hydrochemical characteristics of an urban lake restored using a sequential application of iron and aluminum coagulants

A study was carried out on Lake Mielenko in Kartuzy. It is a small and shallow waterbody (7.8 ha, max. depth 1.8 m), whose morphometric conditions qualify it as a polymictic lake (the first lake in a river - lake system). Before the reclamation began, the lake was characterized by a high concentrati...

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Main Author: Płachta Anna
Format: Article
Language:English
Published: MDPI AG 2021-06-01
Series:Limnological Review
Subjects:
Online Access:https://doi.org/10.2478/limre-2021-0008
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author Płachta Anna
author_facet Płachta Anna
author_sort Płachta Anna
collection DOAJ
description A study was carried out on Lake Mielenko in Kartuzy. It is a small and shallow waterbody (7.8 ha, max. depth 1.8 m), whose morphometric conditions qualify it as a polymictic lake (the first lake in a river - lake system). Before the reclamation began, the lake was characterized by a high concentration of chlorophyll-a (16.4 mg m−3 in spring to 33 mg m−3 in summer) and low visibility. The purpose of the study was to determine the impact of the first stage of restoration of Lake Mielenko by phosphorus inactivation using a combination of aluminum and iron coagulants (PIX and PAX). After coagulant dosing into the lake, a significant decrease in chlorophyll-a was observed, which resulted in improving water transparency in the lake and decreasing concentrations of both nutrients (nitrogen and phosphorus). The total concentration of nutrients was dominated by organic forms (constituting 71-95%). Maximum nutrient concentrations were 0.273±0.01 mg P L−1 and 5.52±0.1 mg N L-1 (in the summer period before the restoration activities were performed).
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spelling doaj.art-9c065256e99c43bc974b8a28c08e79552024-02-03T07:17:47ZengMDPI AGLimnological Review2300-75752021-06-01212818810.2478/limre-2021-0008Preliminary hydrochemical characteristics of an urban lake restored using a sequential application of iron and aluminum coagulantsPłachta Anna0Department of Water Protection Engineering and Environmental Microbiology, Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, 1 Prawocheńskiego St., Olsztyn, PolandA study was carried out on Lake Mielenko in Kartuzy. It is a small and shallow waterbody (7.8 ha, max. depth 1.8 m), whose morphometric conditions qualify it as a polymictic lake (the first lake in a river - lake system). Before the reclamation began, the lake was characterized by a high concentration of chlorophyll-a (16.4 mg m−3 in spring to 33 mg m−3 in summer) and low visibility. The purpose of the study was to determine the impact of the first stage of restoration of Lake Mielenko by phosphorus inactivation using a combination of aluminum and iron coagulants (PIX and PAX). After coagulant dosing into the lake, a significant decrease in chlorophyll-a was observed, which resulted in improving water transparency in the lake and decreasing concentrations of both nutrients (nitrogen and phosphorus). The total concentration of nutrients was dominated by organic forms (constituting 71-95%). Maximum nutrient concentrations were 0.273±0.01 mg P L−1 and 5.52±0.1 mg N L-1 (in the summer period before the restoration activities were performed).https://doi.org/10.2478/limre-2021-0008restorationlake mielenkocoagulantnutrientschlorophyll-a
spellingShingle Płachta Anna
Preliminary hydrochemical characteristics of an urban lake restored using a sequential application of iron and aluminum coagulants
Limnological Review
restoration
lake mielenko
coagulant
nutrients
chlorophyll-a
title Preliminary hydrochemical characteristics of an urban lake restored using a sequential application of iron and aluminum coagulants
title_full Preliminary hydrochemical characteristics of an urban lake restored using a sequential application of iron and aluminum coagulants
title_fullStr Preliminary hydrochemical characteristics of an urban lake restored using a sequential application of iron and aluminum coagulants
title_full_unstemmed Preliminary hydrochemical characteristics of an urban lake restored using a sequential application of iron and aluminum coagulants
title_short Preliminary hydrochemical characteristics of an urban lake restored using a sequential application of iron and aluminum coagulants
title_sort preliminary hydrochemical characteristics of an urban lake restored using a sequential application of iron and aluminum coagulants
topic restoration
lake mielenko
coagulant
nutrients
chlorophyll-a
url https://doi.org/10.2478/limre-2021-0008
work_keys_str_mv AT płachtaanna preliminaryhydrochemicalcharacteristicsofanurbanlakerestoredusingasequentialapplicationofironandaluminumcoagulants