Publication Details

Reference Category Book chapters
DOI / URL
Title (Primary) Sauerstoffsensor für in situ-Langzeit-Monitoring
Title (Secondary) Wasserwirtschaftliche Sanierung von Bergbaukippen, Halden und Deponien: Freiberger Forschungsforum ; Vorträge und Posterbeiträge zum 51. Berg- und Hüttenmännischen Tag 2000
Author Lazik, D.; Geistlinger, H.
Publisher Häfner, F.; Schmidt, J.; Merkel, B.
Journal Freiberger Forschungshefte C
Year 2000
Department HDG; BOPHY
Volume 482
Page From 324
Page To 334
Language deutsch
UFZ inventory Magdeburg, Bibliothek, 00445177, 01-1105 MA, Wa 40
Abstract

In this paper we propose a new gas monitaring system, which is based on selective diffusion through polymers. Combining the gas selectivity of nonporous passive polymers with the travel velocity of pressure changes (sound velocity) yields the physical bases of the proposed method: the partial pressure or the gas concentration measurement is transformed into a simple measurement of the total pressure inside a polymer tube, where the sampling points and the measurement equipment can be at different locations. Important to note that the same principle can be applied to different gases of interest; for instance to CO2 and O2 in order to control enhanced aerobic biodegradation through oxygen injection. In order to elucidate the measuring principle, we present an ideal isobaric experiment. Basedon a diffusion model with cylinder symmetry the linear time dependence of the experimental volume change can be understood and furthermore, an effective diffusion constant can be derived.

Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=7389
Lazik, D., Geistlinger, H. (2000):
Sauerstoffsensor für in situ-Langzeit-Monitoring
In: Häfner, F., Schmidt, J., Merkel, B. (Hrsg.)
Wasserwirtschaftliche Sanierung von Bergbaukippen, Halden und Deponien: Freiberger Forschungsforum ; Vorträge und Posterbeiträge zum 51. Berg- und Hüttenmännischen Tag 2000
Freiberg. Forschungsh. C 482
TU Bergakademie Freiberg, Freiberg, S. 324 - 334