Borehole Diffusive Flux Apparatus for Characterizing Diffusive Mass-transfer in Subsurface Systems.

ABSTRACT: The concept of the Borehole Diffusive Flux Apparatus (BDFA) is presented herein. The BDFA is an innovative apparatus designed to provide continuous direct access to an undisturbed column of sediment that can be monitored at multiple discrete vertical intervals to provide high-resolution characterization of local-scale mass transfer and attenuation. The conceptual basis and technical design of the device are presented, along with an example of borehole design and installation at a field site. Mathematical simulations are used to illustrate its application for two scenarios. The results of these simulations indicate that test periods of several weeks to a few months should be sufficient to obtain robust results. The device has the potential to improve our ability to characterize critical mas

SUBMITTER: Brusseau ML 

PROVIDER: S-EPMC6703846 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature