A Laboratory Experiment and Predictive Model for Evaluating Landfill Cover Controls of Emissions of Volatile Organic Chemicals to Air

Abstract

ABSTRACT Emissions of VOCs from a simulated landfill have been estimated for different types of cover materials, including soil, kaolinite, montmorillonite, polyethylene films, and composites. A simple diffusion model has been used to obtain a priori estimates of emission fluxes of VOCs. Various factors controlling emission through soil covers such as bulk density, water content, total porosity, and air-filled porosity of cover material, as well as volatility characteristics of VOCs, have been investigated.