The effect of lake restoration by the hypolimnetic withdrawal method on the intensity of ambient odour

  • Renata Tandyrak | renatat@uwm.edu.pl University of Warmia and Mazury in Olsztyn, Poland.
  • Iwona Gołaś University of Warmia and Mazury in Olsztyn, Poland.
  • Katarzyna Parszuto University of Warmia and Mazury in Olsztyn, Poland.
  • Magdalena Bowszys University of Warmia and Mazury in Olsztyn, Poland.
  • Daniel Szymański University of Warmia and Mazury in Olsztyn, Poland.
  • Monika Harnisz University of Warmia and Mazury in Olsztyn, Poland.
  • Andrzej Brudniak University of Warmia and Mazury in Olsztyn, Poland.
  • Izabela Wysocka University of Warmia and Mazury in Olsztyn, Poland.

Abstract

The objective of this study was to evaluate the effect of lake restoration by the hypolimnetic withdrawal method on the intensity of ambient odour in the vicinity of the pipeline outlet. The study was carried out in 2012-2013 from the beginning of the summer stagnation period in Lake Kortowskie to complete overturn in fall. Samples of river water and ambient air were collected from two sites: near the pipeline outlet (PO) and behind the academic campus (AC). A total of 44 air samples and 44 water samples were analysed. Odour intensity was measured in samples of ambient air. The following physicochemical parameters of water were determined: flow rate, dissolved oxygen (DO), hydrogen sulphide (H2S), sulphate (SO4), ammonium nitrogen (NH4-N), total nitrogen (TN), dissolved nitrogen (DN), total particulate nitrogen (T-PN), total organic carbon (TOC), dissolved organic carbon (DOC) and total particulate organic carbon (T-POC). Water samples were also analysed to determine total bacterial abundance (TBA) and the counts of bacterial rods, cocci and spiral-shaped bacteria, and sulphate-reducing bacteria (SRB). Significant variations in odour intensity were noted between years and sampling sites. Odour was significantly determined by the proportion of lake water in river water. It was also significantly correlated (P<0.01, P<0.001) with most of the analysed physicochemical and microbiological parameters. The multiple regression analysis revealed that odour intensity was influenced directly by TOC and DN and indirectly by H2S, NH4-N, TBA and counts of SRB,  rod- and spiral-shaped bacteria only in.

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Author Biographies

Renata Tandyrak, University of Warmia and Mazury in Olsztyn
Department of Water Protection Engineering
Iwona Gołaś, University of Warmia and Mazury in Olsztyn
Department of Environmental Microbiology
Katarzyna Parszuto, University of Warmia and Mazury in Olsztyn
Department of Water Protection Engineering
Magdalena Bowszys, University of Warmia and Mazury in Olsztyn
Department of Tourism, Recreation and Ecology
Daniel Szymański, University of Warmia and Mazury in Olsztyn
Department of Water Protection Engineering
Monika Harnisz, University of Warmia and Mazury in Olsztyn
Department of Environmental Microbiology
Andrzej Brudniak, University of Warmia and Mazury in Olsztyn
Department of Environmental Engineering
Izabela Wysocka, University of Warmia and Mazury in Olsztyn
Department of Environmental Engineering
Published
2016-06-16
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Issue
Section
Original Articles
Supporting Agencies
Ministry of Science and Higher Education of Poland.
Keywords:
Hypolimnetic withdrawal, odour, TOC, H2S, N-NH4, bacteria.
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How to Cite
1.
Tandyrak R, Gołaś I, Parszuto K, Bowszys M, Szymański D, Harnisz M, Brudniak A, Wysocka I. The effect of lake restoration by the hypolimnetic withdrawal method on the intensity of ambient odour. J Limnol [Internet]. 2016Jun.16 [cited 2021May9];75(3). Available from: https://jlimnol.it/index.php/jlimnol/article/view/jlimnol.2016.1400

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