Modeling transport of protons and calcium ions in an alginate gel bead system: the effects of physical nonequilibrium and nonlinear competitive sorption
Article Abstract:
A combination of physical and chemical processes are used to determine the sole transport in heterogenous soil systems. In this system, a system made of alginate gel beads and two-region transport modeling is used to study transport actions in reactive heterogenous systems. The study is broken down into an introduction, a discussion of the materials and methods used in the experiment, and a discussion of the results.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 2000
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Comparison of semianalytical methods to analyze complexation with heterogeneous ligands
Article Abstract:
Local isotherm approximation (LIA) and differential equilibrium function (DEF) can be used to calculate the affinity of ions to bonding with heterogeneous ligands. LIA methods use estimates of local binding functions to compute the distribution function. This results in a flattened distribution curve. The DEF method uses the law of mass action and produces distribution curves that are asymmetrically distorted.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1992
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Predicting multicomponent adsorption and transport of fluoride at variable pH in a geothite-silica sand system
Article Abstract:
A mechanistic ion adsorption model was combined with a convective dispersive solute transport model to predict multicomponent transport of fluoride at variable pH in a geothite-silica sand column system. The results show that this particular modeling method allows for the simple addition of new substances by simply adding their interaction with the geothite or silica interface.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1996
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- Abstracts: Physicochemical transport processes affecting the removal of residual DNAPL by nonionic surfactant solutions. Cosolvent-enhanced remediation of residual dense nonaqueous phase liquids: experimental investigation
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