Sources of dissolved oxygen in monitoring and pumping wells

Groundwater monitoring and pumping wells set in anoxic aquifers require attention to keep the groundwater free of dissolved oxygen (DO). In properly constructed monitoring or pumping wells, two processes can however still introduce oxygen to anoxic groundwater: (1) permeation of oxygen through polym...

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Bibliographic Details
Published in:Hydrogeology journal 2017-02, Vol.25 (1), p.55-66
Main Authors: Bonte, Matthijs, Wols, Bas, Maas, Kees, Stuyfzand, Pieter
Format: Article
Language:English
Subjects:
Aquatic Pollution
Convection
Dissolved oxygen
Earth and Environmental Science
Earth Sciences
Environmental monitoring
Geology
Geophysics/Geodesy
Groundwater
Hydrogeology
Hydrology/Water Resources
Mathematical models
Monitoring
Oxygen
Oxygenation
Penetration
Permeation
Piezometers
Polymers
Polyvinyl chloride
Pressure head
Pumping
Waste Water Technology
Water analysis
Water Management
Water monitoring
Water Pollution Control
Water Quality/Water Pollution
Water sampling
Water table
Water wells
Wells
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Summary:Groundwater monitoring and pumping wells set in anoxic aquifers require attention to keep the groundwater free of dissolved oxygen (DO). In properly constructed monitoring or pumping wells, two processes can however still introduce oxygen to anoxic groundwater: (1) permeation of oxygen through polymer materials such as silicone, PVC, HDPE or Teflon, and (2) thermally driven convection, which can occur in all types of piezometers or wells, regardless of construction material, when the water table or pressure head is close (
ISSN:1431-2174
1435-0157
DOI:10.1007/s10040-016-1477-9