Scale dependence of surface complexation capacity and rates in heterogeneous media

• Published in: The Science of the total environment Vol. 635; no. C; pp. 1547 - 1555
• Main Authors: Wang, Li, Wen, Hang, Li, Li
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 01.09.2018; Elsevier
• Subjects: chromium; Connectivity; Correlation length; Length scales; mixing; permeability; preferential flow; Reactive transport modeling; solutes; sorption; Sorption capacity and kinetics; Spatial heterogeneity; tracer techniques; variance; Spatial heterogeneity; Connectivity; Reactive transport modeling; Sorption capacity and kinetics; Length scales; Correlation length

•Well-connected media reduce the surface complexation capacity and rates by> two orders of magnitude•Surface complexation capacity and early rates negatively correlate to connectivity whereas late rates are governed by diffusion•The heterogeneity effects diminish at critical lengths that are >...