Nonaqueous Phase Liquid Pool Dissolution as a Function of Average Pore Water Velocity

Bench-scale reactor experiments were performed to study the dissolution of a binary naphthalene-in-nonane mixture nonaqueous phase liquid (NAPL) pool over a wide range of average pore water velocities, vx ( 0.1-60 m/day). Experimental NAPL pool dissolution flux values were determined using a steady-...

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Bibliographic Details
Published in:Journal of environmental engineering (New York, N.Y.) N.Y.), 2003-09, Vol.129 (9), p.786-799
Main Authors: Seagren, Eric A, Moore, Tim O
Format: Article
Language:English
Subjects:
Coefficients
Correlation
Diffusion
Dissolution
Effluents
Environmental engineering
Equilibrium
Equilibrium conditions
Flushing
Flux
Groundwater
Liquids
Mass balance
Mathematical models
Pools
Porosity
Reactors
TECHNICAL PAPERS
Velocity
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Summary:Bench-scale reactor experiments were performed to study the dissolution of a binary naphthalene-in-nonane mixture nonaqueous phase liquid (NAPL) pool over a wide range of average pore water velocities, vx ( 0.1-60 m/day). Experimental NAPL pool dissolution flux values were determined using a steady-state mass balance approach. The experimental flux data were compared to model predictions made assuming either local equilibrium or mass-transfer limited conditions. The local equilibrium model could describe the trends in the average effluent concentration and dissolution flux with 0.110m/day) dissolution of multicomponent NAPL pools, and that flushing of groundwater at very high velocities may not be an effective approach for enhancing NAPL-pool dissolution flux.
ISSN:0733-9372
1943-7870
DOI:10.1061/(ASCE)0733-9372(2003)129:9(786)