Dr. Paradis and Rakiba Sultana (PhD Candidate) published a Geoscience Faculty Article titled, Tracer-based Separation of Advection and Dispersion from Breakthrough Curves. The article describes a method to remove advection and dispersion from the breakthrough curve of a potentially reactive solute to visualize and quantify reactivity, all without the need to solve the advection-dispersion-reaction equation or transform true concentrations. The article can be found here: https://dc.uwm.edu/geosci_facart/28/
![](https://sites.uwm.edu/paradisc/files/2024/03/BTC_1001_hoss_06-56e01d2468bd1ffd.png)
Breakthrough curve of manganese showing measured concentration (msd ─■─), expected concentration from advection and dispersion only (adv ─□─) via Equation (1), injection concentration (inj —), and background concentration (bkg ─)