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Effects of altered groundwater chemistry upon the pH-dependency and magnitude of bacterial attachment during transport within an organically contaminated sandy aquifer

Dates

Year
2010

Citation

Harvey, Ronald W, Metge, David W, Barber, L B, and Aiken, George R, 2010, Effects of altered groundwater chemistry upon the pH-dependency and magnitude of bacterial attachment during transport within an organically contaminated sandy aquifer: Water Research, v. 44, iss. 4, p. 1062-1071.

Summary

The effects of a dilute (ionic strength = 5 × 10−3 M) plume of treated sewage, with elevated levels (3.9 mg/L) of dissolved organic carbon (DOC), upon the pH-dependency and magnitude of bacterial transport through an iron-laden, quartz sand aquifer (Cape Cod, MA) were evaluated using sets of replicate, static minicolumns. Compared with uncontaminated groundwater, the plume chemistry diminished bacterial attachment under mildly acidic (pH 5.0–6.5) in-situ conditions, in spite of the 5-fold increase in ionic strength and substantively enhanced attachment under more alkaline conditions. The effects of the hydrophobic neutral and total fractions of the plume DOC; modest concentrations of fulvic and humic acids (1.5 mg/L); linear alkyl [...]

Contacts

Communities

  • USGS National Research Program

Tags

Provenance

Added to ScienceBase on Fri Apr 19 11:31:28 MDT 2013 by processing file <b>Organic Carbon Migration in Aquatic Environments.xml</b> in item <a href="https://www.sciencebase.gov/catalog/item/5042163ae4b04b508bfd3337">https://www.sciencebase.gov/catalog/item/5042163ae4b04b508bfd3337</a>

Additional Information

Citation Extension

journalWater Research
parts
typePages
value1062-1071
typeVolume
value44
typeIssue
value4
citationTypeJournal Article

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