Effectiveness of Heavy Metal Removal in Urban Permeable Pavement Systems

Stormwater runoff and non-point source pollution in urban areas remain as a significant water quality issue for many regions of the United States. Urban development increases a variety of environmental pollutants discharge into groundwater in cities with a combined sewer system when the system surcharges the overflow. Among the common stormwater runoff pollutants, heavy metals were considered as priority of attention because they are toxic to aquatic organisms and may persist in the food chain. The heavy metal pollutants are expected to be function of land use which is expected to have a significant influence on their presence. This paper presents an investigation on the water quality of the exfiltrated runoff through permeable pavement (PP) systems and their heavy metal removal efficiency in the metropolitan area of Louisville, Kentucky. A series of field samples from surface and exfiltrated runoff were taken within different rainfall events. The heavy metal pollutant removal efficiency of the PP was investigated by comparing the concentrations in both the runoff and the underdrain. Furthermore, the concentrations of heavy metal in the runoff were related with the rainfall characteristics and site condition. Results suggest that an improvement in water quality is achieved by diverting stormwater into PP.

Language

  • English

Media Info

  • Media Type: Web
  • Pagination: pp 22-31
  • Monograph Title: Geo-Chicago 2016: Sustainable Waste Management and Remediation

Subject/Index Terms

Filing Info

  • Accession Number: 01611851
  • Record Type: Publication
  • ISBN: 9780784480168
  • Files: TRIS, ASCE
  • Created Date: Aug 11 2016 3:13PM