The role of bacteria in well clogging

D.E. Ralph; J.M. Stevenson

doi:10.1016/0043-1354(94)E0077-J

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Journal article

Peer reviewed

The role of bacteria in well clogging

D.E. Ralph and J.M. Stevenson

Water Research, Vol.29(1), pp.365-369

1995

DOI: https://doi.org/10.1016/0043-1354(94)E0077-J

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Abstract

The effect of ochreous sludge from blocked irrigation bores on the oxidation rate of soluble Fe(II) was studied. Solutions of Fe(II) at an initial concentrations of 12-15 ppm were held at 19°C under an oxygen partial pressure of ca 1.4% and the decline in Fe(II) concentration observed. Solutions were buffered with 2-(N-morpholino) ethanesulfonic acid (MES) at pH values of 5.8, 6.0, 6.3 and 6.5. Sterile flasks showed agreement with the expected 1st order behaviour (with respect to [Fe(II)]) while flasks inoculated with ochreous sludge deviated significantly from this pattern. Rates of Fe(II) oxidation were significantly enhanced in the inoculated flasks with the greatest increase observed at pH 5.8. The effect of ochreous sludge from blocked irrigation bores on the oxidation rate of soluble Fe(II) was studied. Solutions of Fe(II) at an initial concentrations of 12-15 ppm were held at 19 °C under an oxygen partial pressure of ca 1.4% and the decline in Fe(II) concentration observed. Solutions were buffered with 2-(N-morpholino) ethanesulfonic acid (MES) at pH values of 5.8, 6.0, 6.3 and 6.5. Sterile flasks showed agreement with the expected 1st order behaviour (with respect to [Fe(II)]) while flasks inoculated with ochreous sludge deviated significantly from this pattern. Rates of Fe(II) oxidation were significantly enhanced in the inoculated flasks with the greatest increase observed at pH 5.8.

Details

Title: The role of bacteria in well clogging
Authors/Creators: D.E. Ralph (Author/Creator) - Murdoch University
J.M. Stevenson (Author/Creator)
Publication Details: Water Research, Vol.29(1), pp.365-369
Publisher: Elsevier BV
Identifiers: 991005539586507891
Murdoch Affiliation: School of Mathematical and Physical Sciences
Language: English
Resource Type: Journal article

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Citation topics: 2 Chemistry; 2.90 Water Treatment; 2.90.1332 Goethite
Web Of Science research areas: Engineering, Environmental; Environmental Sciences; Water Resources
ESI research areas: Environment/Ecology