Search Results - "LEHTOLA, Markku J"

Survival of Mycobacterium avium, Legionella pneumophila, Escherichia coli, and Caliciviruses in Drinking Water-Associated Biofilms Grown under High-Shear Turbulent Flow by Lehtola, Markku J, Torvinen, Eila, Kusnetsov, Jaana, Pitkänen, Tarja, Maunula, Leena, von Bonsdorff, Carl-Henrik, Martikainen, Pertti J, Wilks, Sandra A, Keevil, C. William, Miettinen, Ilkka T

“…Most of the bacteria in drinking water distribution systems are associated with biofilms. In biofilms, their nutrient supply is better than in water, and…”
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Survival of Mycobacterium avium in Drinking Water Biofilms as Affected by Water Flow Velocity, Availability of Phosphorus, and Temperature by Torvinen, Eila, Lehtola, Markku J, Martikainen, Pertti J, Miettinen, Ilkka T

“…Mycobacterium avium is a potential pathogen occurring in drinking water systems. It is a slowly growing bacterium producing a thick cell wall containing…”
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Mycobacteria in Water and Loose Deposits of Drinking Water Distribution Systems in Finland by TORVINEN, Eila, SUOMALAINEN, Sini, LEHTOLA, Markku J, MIETTINEN, Ilkka T, ZACHEUS, Outi, PAULIN, Lars, KATILA, Marja-Leena, MARTIKAINEN, Pertti J

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Fluorescence In Situ Hybridization Using Peptide Nucleic Acid Probes for Rapid Detection of Mycobacterium avium subsp. avium and Mycobacterium avium subsp. paratuberculosis in Potable-Water Biofilms by LEHTOLA, Markku J, TORVINEN, Eila, MIETTINEN, Ilkka T, KEEVIL, C. William

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Changes in content of microbially available phosphorus, assimilable organic carbon and microbial growth potential during drinking water treatment processes by Lehtola, Markku J, Miettinen, Ilkka T, Vartiainen, Terttu, Martikainen, Pertti J

“…There are regions where microbial growth in drinking water is limited by phosphorus instead of organic carbon. In phosphorus limited waters small changes in…”
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Impact of UV disinfection on microbially available phosphorus, organic carbon, and microbial growth in drinking water by Lehtola, Markku J, Miettinen, Ilkka T, Vartiainen, Terttu, Rantakokko, Panu, Hirvonen, Arja, Martikainen, Pertti J

“…UV irradiation at a wavelength of 253.7 nm (UV 254) is commonly used for drinking water disinfection. UV radiation is known to convert organically combined…”
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The effects of changing water flow velocity on the formation of biofilms and water quality in pilot distribution system consisting of copper or polyethylene pipes by Lehtola, Markku J., Laxander, Michaela, Miettinen, Ilkka T., Hirvonen, Arja, Vartiainen, Terttu, Martikainen, Pertti J.

“…We studied the effects of flow velocity on the formation of biofilms and the concentration of bacteria in water in copper and plastic (polyethylene, PE) pipes…”
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The Microbial Community Structure of Drinking Water Biofilms Can Be Affected by Phosphorus Availability by Keinänen, Minna M, Korhonen, Leena K, Lehtola, Markku J, Miettinen, Ilkka T, Martikainen, Pertti J, Vartiainen, Terttu, Suutari, Merja H

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A New Sensitive Bioassay for Determination of Microbially Available Phosphorus in Water by LEHTOLA, M. J, MIETTINEN, I. T, VARTIAINEN, T, MARTIKAINEN, P. J

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Microbiology, chemistry and biofilm development in a pilot drinking water distribution system with copper and plastic pipes by Lehtola, Markku J., Miettinen, Ilkka T., Keinänen, Minna M., Kekki, Tomi K., Laine, Olli, Hirvonen, Arja, Vartiainen, Terttu, Martikainen, Pertti J.

“…We studied the changes in water quality and formation of biofilms occurring in a pilot-scale water distribution system with two generally used pipe materials:…”
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Pipeline materials modify the effectiveness of disinfectants in drinking water distribution systems by Lehtola, Markku J., Miettinen, Ilkka T., Lampola, Tiia, Hirvonen, Arja, Vartiainen, Terttu, Martikainen, Pertti J.

“…We studied how pipe material can modify the effectiveness of UV- and chlorine disinfection in drinking water and biofilms. This study was done with two pipe…”
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Removal of soft deposits from the distribution system improves the drinking water quality by Lehtola, Markku J., Nissinen, Tarja K., Miettinen, Ilkka T., Martikainen, Pertti J., Vartiainen, Terttu

“…Deterioration in drinking water quality in distribution networks represents a problem in drinking water distribution. These can be an increase in microbial…”
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Evaluating online data of water quality changes in a pilot drinking water distribution system with multivariate data exploration methods by Mustonen, Satu M., Tissari, Soile, Huikko, Laura, Kolehmainen, Mikko, Lehtola, Markku J., Hirvonen, Arja

“…The distribution of drinking water generates soft deposits and biofilms in the pipelines of distribution systems. Disturbances in water distribution can detach…”
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Soft deposits, the key site for microbial growth in drinking water distribution networks by Zacheus, Outi M, Lehtola, Markku J, Korhonen, Leena K, Martikainen, Pertti J

“…In this project we studied the microbiological quality of soft pipeline deposits removed from drinking water distribution networks during mechanical cleaning…”
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Advantages of peptide nucleic acid oligonucleotides for sensitive site directed 16S rRNA fluorescence in situ hybridization (FISH) detection of Campylobacter jejuni, Campylobacter coli and Campylobacter lari by Lehtola, Markku J., Loades, Christopher J., Keevil, C. William

“…Traditionally fluorescence in situ hybridization (FISH) has been performed with labeled DNA oligonucleotide probes. Here we present for the first time a high…”
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Estimates of microbial quality and concentration of copper in distributed drinking water are highly dependent on sampling strategy by Lehtola, Markku J., Miettinen, Ilkka T., Hirvonen, Arja, Vartiainen, Terttu, Martikainen, Pertti J.

“…The numbers of bacteria generally increase in distributed water. Often household pipelines or water fittings (e.g., taps) represent the most critical location…”
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Bacterial biofilm formation on polyvinyl chloride, polyethylene and stainless steel exposed to ozonated water by Zacheus, Outi M, Iivanainen, Eila K, Nissinen, Tarja K, Lehtola, Markku J, Martikainen, Pertti J

“…The formation of biofilm on polyvinyl chloride (PVC), polyethylene (PE) and stainless steel surfaces was studied in bank infiltrated and chemically purified…”
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Modelling of Water Quality : An Application to a Water Treatment Process by Juntunen, Petri, Liukkonen, Mika, Pelo, Marja, Lehtola, Markku J., Hiltunen, Yrjö

“…The modelling of water treatment processes is challenging because of its complexity, nonlinearity, and numerous contributory variables, but it is of particular…”
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Microbially available organic carbon, phosphorus, and microbial growth in ozonated drinking water by Lehtola, Markku J, Miettinen, Ilkka T, Vartiainen, Terttu, Myllykangas, Tiia, Martikainen, Pertti J

“…Ozonation is a disinfection technique commonly used in the treatment of drinking water. It destroys harmful microbes, but it also degrades organic matter in…”
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Formation of biofilms in drinking water distribution networks, a case study in two cities in Finland and Latvia by LEHTOLA, Markku J, JUHNA, Talis, MIETTINEN, Ilkka T, VARTIAINEN, Terttu, MARTIKAINEN, Pertti J

“…The formation of biofilms in drinking water distribution networks is a significant technical, aesthetic and hygienic problem. In this study, the effects of…”
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