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Coexistence of Legionella pneumophila Bacteria and Free-Living Amoebae in Lakes Serving as a Cooling System of a Power Plant.

Zbikowska E, Kletkiewicz H, Walczak M, Burkowska A - Water Air Soil Pollut (2014)

Bottom Line: The study was aimed at determining whether potentially pathogenic free-living amoebae (FLA) and Legionella pneumophila can be found in lakes serving as a natural cooling system of a power plant.The bacteria were identified in the biofilm throughout the entire research period and in the subsurface water layer in July and August.Hartmanella sp. and/or Naegleria fowleri were identified in the biofilm throughout the entire research period.

View Article: PubMed Central - PubMed

Affiliation: Department of Invertebrate Zoology, Faculty of Biology and Environment Protection, Nicolaus Copernicus University, Lwowska 1, 87-100 Toruń, Poland.

ABSTRACT
The study was aimed at determining whether potentially pathogenic free-living amoebae (FLA) and Legionella pneumophila can be found in lakes serving as a natural cooling system of a power plant. Water samples were collected from five lakes forming the cooling system of the power plants Pątnów and Konin (Poland). The numbers of investigated organisms were determined with the use of a very sensitive molecular method-fluorescence in situ hybridization (FISH). The result of the present study shows that thermally altered aquatic environments provide perfect conditions for the growth of L. pneumophila and amoebae. The bacteria were identified in the biofilm throughout the entire research period and in the subsurface water layer in July and August. Hartmanella sp. and/or Naegleria fowleri were identified in the biofilm throughout the entire research period.

No MeSH data available.


Related in: MedlinePlus

The cooling system of the power plants Pątnów and Konin
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Related In: Results  -  Collection


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Fig1: The cooling system of the power plants Pątnów and Konin

Mentions: Water samples were collected from five lakes forming the cooling system of the power plants Konin (founded in 1958 and its electric power is 198 MW) and Pątnów (founded in 1967 and its electric power is 200 MW). The heated water from the Konin power plant is discharged to lakes Gocławskie, Pątnowskie, and Mikorzyńskie. From the Pątnów power plant, the heated water is discharged to lakes Pątnowskie, Mikorzyńskie, and Licheńskie. From Licheńskie Lake, the water flows to Ślesińskie Lake (large loop). While flowing, the water cools and is taken by the power plants. Joined with a system of canals, the lakes have a total length of 26 km. The lake–canal system is a closed loop (in terms of the power plant operation), where the water flow is regulated by water culverts and pumping stations. Water from the lakes cools the power generation units of both power plants and returns to the lakes heated (Fig. 1).Fig. 1


Coexistence of Legionella pneumophila Bacteria and Free-Living Amoebae in Lakes Serving as a Cooling System of a Power Plant.

Zbikowska E, Kletkiewicz H, Walczak M, Burkowska A - Water Air Soil Pollut (2014)

The cooling system of the power plants Pątnów and Konin
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4127003&req=5

Fig1: The cooling system of the power plants Pątnów and Konin
Mentions: Water samples were collected from five lakes forming the cooling system of the power plants Konin (founded in 1958 and its electric power is 198 MW) and Pątnów (founded in 1967 and its electric power is 200 MW). The heated water from the Konin power plant is discharged to lakes Gocławskie, Pątnowskie, and Mikorzyńskie. From the Pątnów power plant, the heated water is discharged to lakes Pątnowskie, Mikorzyńskie, and Licheńskie. From Licheńskie Lake, the water flows to Ślesińskie Lake (large loop). While flowing, the water cools and is taken by the power plants. Joined with a system of canals, the lakes have a total length of 26 km. The lake–canal system is a closed loop (in terms of the power plant operation), where the water flow is regulated by water culverts and pumping stations. Water from the lakes cools the power generation units of both power plants and returns to the lakes heated (Fig. 1).Fig. 1

Bottom Line: The study was aimed at determining whether potentially pathogenic free-living amoebae (FLA) and Legionella pneumophila can be found in lakes serving as a natural cooling system of a power plant.The bacteria were identified in the biofilm throughout the entire research period and in the subsurface water layer in July and August.Hartmanella sp. and/or Naegleria fowleri were identified in the biofilm throughout the entire research period.

View Article: PubMed Central - PubMed

Affiliation: Department of Invertebrate Zoology, Faculty of Biology and Environment Protection, Nicolaus Copernicus University, Lwowska 1, 87-100 Toruń, Poland.

ABSTRACT
The study was aimed at determining whether potentially pathogenic free-living amoebae (FLA) and Legionella pneumophila can be found in lakes serving as a natural cooling system of a power plant. Water samples were collected from five lakes forming the cooling system of the power plants Pątnów and Konin (Poland). The numbers of investigated organisms were determined with the use of a very sensitive molecular method-fluorescence in situ hybridization (FISH). The result of the present study shows that thermally altered aquatic environments provide perfect conditions for the growth of L. pneumophila and amoebae. The bacteria were identified in the biofilm throughout the entire research period and in the subsurface water layer in July and August. Hartmanella sp. and/or Naegleria fowleri were identified in the biofilm throughout the entire research period.

No MeSH data available.


Related in: MedlinePlus