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Transport of dissolving colloidal particles in porous media
Author(s) -
Corapcioglu M. Yavuz,
Jiang Shiyan,
Kim Seunghyun
Publication year - 1999
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/1999wr900220
Subject(s) - dissolution , colloid , sorption , porous medium , mass transfer , phase (matter) , chemical engineering , aqueous solution , porosity , colloidal particle , kinetics , matrix (chemical analysis) , materials science , chemistry , chromatography , adsorption , composite material , organic chemistry , physics , engineering , quantum mechanics
A mathematical model was developed to simulate the transport and dissolution of colloidal particles with a water‐soluble component in a porous medium. The model is based on mass balance equations describing the mass transport, dissolution, sorption, capture, and release of colloids in a three‐phase medium consisting of a solid matrix, an aqueous phase, and colloids. Colloid dissolution, contaminant sorption on solid matrix, and colloid capture mechanisms are represented by first‐order kinetics. A numerical comparison of the model of a water‐soluble component associated with fly ash–mobilized transport and transport due only to dissolved component migration indicates that the presence of colloids significantly increases the aqueous phase contaminant concentration.