LRC.knit

Ben Trueman

This model generates lead solubility predictions using the LEADSOL (Schock, Wagner, and Oliphant) and minteq.v4 (Charlton and Parkhurst; Parkhurst and Appelo) databases. Lead binding to humic substances is modeled using an approximation to the Windermer Humic Aqueous Model (Tipping and Hurley; see pbcusol::eq_sol_wham()). Lead concentration is shown as a function of stagnation time inside a lead pipe using a model described by Kuch and Wagner (Kuch and Wagner).

This model can be seen below and a link to the live site is given

Model

Figure 1: Link to Live Site: https://bentrueman.shinyapps.io/shinypbcusol/

Charlton, S. R., and D. L. Parkhurst. “2011.” Modules Based on the Geochemical Model PHREEQC for Use in Scripting and Programming Languages. Computers & Geosciences, v 37: 1653–63.
Kuch, A., and I. Wagner. “1983.” A Mass Transfer Model to Describe Lead Concentrations in Drinking Water. Water Research 17 (10): 1303–7.
Parkhurst, D. L., and C. A. J. Appelo. “2013.” Description of Input and Examples for PHREEQC Version 3–A Computer Program for Speciation, Batch- Reaction, One-Dimensional Transport, and Inverse Geochemical Calculations: U. S. Geological Survey Techniques and Methods, Book 6 (497): http://pubs.usgs.gov/tm/06/a43.
Schock, M. R., I. Wagner, and R. J. Oliphant. 1996. Edited by 2nd “Corrosion and solubility of lead in drinking water. ” In Internal corrosion of water distribution systems. Denver, CO: American Water Works Association Research Foundation.
Tipping, E., and M. A. Hurley. “1992.” A Unifying Model of Cation Binding by Humic Substances. Geochimica Et Cosmochimica Acta, v. 56, No 56 (10): 3627–41.

References