Heavy metals (e.g., Cu, Zn, Pb) have been identified in highway stormwater runoff. This study evaluated the feasibility of using passive samplers for monitoring Best Management Practices (BMPs) used for highway runoff treatment. The conventional sampling methods of these BMPs (e.g., manual grab samples or automatic samplers) are costly and only provide concentrations of a specific time of exposure.  Materials such as regenerated cellulose (RC) have been evaluated for suitability as passive sampler. Kinetic studies were employed to determine the rate of heavy metal transfer through RC bags filled with pure water. Approximately 70% of copper adsorbed to the membrane, while Zinc and Lead adsorption were approximately 30% and 0%, respectively. Reverse diffusion and desorption have been evaluated with mass balance. Currently, the effects of varying pollutant concentrations throughout the storm and the dry period following the storm are being studied.

Adsorption, desorption, and diffusion of heavy metals across a regenerated cellulose membrane

245th National Meeting (2013)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.