Contaminant Fate and Transport Processes. CIVE 7332 Lecture 4b. Fate and Transport. Advection and Dispersion – Covered in Days 1, 2 Sorption and Retardation Chemical/Abiotic processes Volatilization Biodegradation. Sorption and Retardation.
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Sorption linearly related to aqueous concentration.
Partition coefficient is Kd
Kd is related to Kow
Mobile LNAPL Pool
Iron (III) Reduction
Plume of Dissolved Fuel Hydrocarbons
(Source: W,R, N, & W, 1999.)
(Adapted from Lovley et al., 1994b.)
Original Plume Concentration Plume after two years
Extraction Only - No Added O2
Plume after two years Plume after two years
O2 Injected at 20 mg/L O2 Injected at 40 mg/L
R–Cl + 2e– + H+ ––> R–H + Cl–