Dynamics of biofilm formation in a model drinking water distribution system

Publication: Research - peer-reviewJournal article – Annual report year: 2002

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The dynamics of biofilm formation in non-chlorinated groundwater-based drinking water was studied in a model distribution system. The formation of biofilm was closely monitored for a period of 522 days by total bacterial counts (AODC), heterotrophic plate counts (R2A media), and ATP content determinations. The biofilm grew at a rate of 0.030±0.002 day−1 reaching quasi-stationary state at 2.6×106 cells/cm2 after approximately 200 days. The low substrate level in the bulk phase (AOC at approximately 6 g ac-C/l) most likely caused the relatively slow biofilm formation rate observed. During the maturation of the biofilm, the bacterial community changed properties in terms of cell-specific ATP content and culturability of the bacteria.
Original languageEnglish
JournalJournal of Water Supply: Research and Technology. AQUA
Publication date2002
Volume51
Pages399-406
ISSN1606-9935
StatePublished

Keywords

  • stationary phase, biofilm, drinking water, growth, formation
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