PMID: 11329664May 2, 2001Paper

Microbially available organic carbon, phosphorus, and microbial growth in ozonated drinking water

Water Research
Markku J LehtolaPertti J Martikainen

Abstract

Ozonation is a disinfection technique commonly used in the treatment of drinking water. It destroys harmful microbes, but it also degrades organic matter in water, increasing the bioavailability of organic matter. Recently, it was found that not only organic carbon but also phosphorus can limit the microbial growth in drinking water, which contains high amount of organic matter. We used a bioassay to analyze whether ozone could also increase the microbially available phosphorus (MAP) in drinking water, and whether MAP in ozone-treated water was associated with the growth of heterotrophic microbes. We found that both assimilable organic carbon and MAP concentrations were increased by ozone treatment. In ozonated water, microbial growth was mainly limited by phosphorus, and even minor changes in MAP concentration dramatically increased the growth potential of heterotrophic microbes. In this study, ozonation increased the MAP by 0.08-0.73 microgram P/l, resulting in an increase of 80,000-730,000 CFU/ml in water samples. In contrast to MAP, the content of assimilable organic carbon (AOCpotential) did not correlate with microbial growth. The results show that in water treatment not only AOCpotential but also MAP should be considered...Continue Reading

Citations

Jun 7, 2005·Water Research·Monika PolanskaChris Van Keer
Apr 7, 2004·Applied and Environmental Microbiology·Eila TorvinenPertti J Martikainen
Apr 17, 2013·Canadian Journal of Microbiology·Noora H J RäsänenEila Torvinen
Nov 9, 2006·Drug Development and Industrial Pharmacy·M Florjanic, J Kristl
Aug 2, 2016·Environmental Science & Technology·Sanly LiuRose Amal
Oct 8, 2014·Journal of Environmental Sciences (China)·Qiuhua WangKunlun Xin
Jan 7, 2018·Applied and Environmental Microbiology·Erika L EnglishMatthew J Wargo
Jan 10, 2009·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Jarmo SallankoEeva Heiska
May 25, 2002·Emerging Infectious Diseases·Andrew D HowePaul R Hunter
Jun 4, 2019·Environmental Microbiology·Moussa LouatiMaher Gtari
Mar 9, 2018·Chemosphere·Meng Wang, Yinguang Chen

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