Abstract
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 language | English |
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Journal | Journal of Water Supply: Research and Technology. AQUA |
Volume | 51 |
Pages (from-to) | 399-406 |
ISSN | 1606-9935 |
Publication status | Published - 2002 |
Keywords
- stationary phase
- biofilm
- drinking water
- growth
- formation