Biological stability of groundwater

Academic Article


  • Conventional (e.g., coagulation, flocculation, and filtration) or membrane filtration treatment trains were used to remove organic compounds from groundwater. For the conventional train with sand-anthracite columns, the assimilable organic carbon (AOC) of the groundwater was reduced from 349 ± 127 μg/L C to 54 ± 51 μg/L C. For the membrane filtration train, there was no statistical difference between the AOC of the raw water influent (388 ± 126 μg C) and that of the membrane permeate (334 ± 156 μg/L C), suggesting that this treatment produced biologically unstable water. Similar results were obtained using the heterotrophic growth response (HGR) method. Comparison of the biostability methods showed that HGR was positively correlated with AOC (r = 0.52; P < 0.0001; n = 156), indicating that AOC only partially explains the ability of heterotrophic bacteria to grow in water samples.
  • Authors

    Digital Object Identifier (doi)

    Author List

  • Noble PA; Clark DL; Olson BH
  • Start Page

  • 87
  • End Page

  • 96
  • Volume

  • 88
  • Issue

  • 5