Environmental Engineering Commons^™

Sorption Measurements And Behavior Of Monosodium Methanearsonate And Arsenic (+5) In Aqueous Suspensions Of Floridian Soil Fractions, George William Di Carlo

FIU Electronic Theses and Dissertations

Adsorption experiments using both monosodium methanearsonate (MSMA) and its inorganic degradation by-product species As(+5), as sodium arsenate Na₂AsO₄, were conducted to evaluate the sorptivity of these constituents to various fractions of soil samples taken from the West Palm Beach Country Club. Adsorption data were analyzed with common isotherm equations (i.e., Linear, Freundlich, Langmuir) to determine K_d for each arsenic (As) species/soil fraction. Simulations using a one-dimensional pesticide transport model, PRZM 2.0, were completed to evaluate possible dissolved concentrations of arsenic at the water table interface under 8 different application scenarios for the soil profile found …