Abstract
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 (
Translated title of the contribution | Sources of dissolved oxygen in monitoring and pumping wells |
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Original language | Spanish |
Pages (from-to) | 55–66 |
Number of pages | 12 |
Journal | Hydrogeology Journal |
Volume | 25 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2016 |
Keywords
- Dissolved oxygen
- Groundwater monitoring
- Numerical modeling
- Thermal convection