“…Similar formulations have decoupled reactive transport in terms of the mixing fraction of waters with a known chemical signature (e.g., Cirpka & Valocchi, 2007; De Simoni et al., 2007; Ginn et al., 2017). Furthermore, studies have also discussed techniques for the simulation of kinetic reactions (e.g., Molins et al., 2004; Saaltink & Rodríguez‐Escales, 2022; Sanchez‐Vila et al., 2007, 2010) and the application to reactive transport in multicontinuum media (e.g., Donado et al., 2009; Willmann et al., 2010).…”