Nonequilibrium sorption and transport of volatile petroleum hydrocarbons in surfactant-modified zeolite

Results from the batch experiments were used to predict BTEX transport through columns of SMZ. Batch-derived rate and site-distribution parameters accurately described the transport dynamics, but the batch-derived Kds significantly underestimated BTEX retardation. Excess dissolved HDTMA in the batch experiments likely led to anomalously low Kd values for those determinations.