Field Performance of Hydrodynamic Separator Units

A sampling plan was developed to analyze the effectiveness of stormwater treatment units in treating typical roadway runoff. This plan was used to investigate the overall performance of two hydrodynamic separators (manufactured by Stormwater 360®) in Rhode Island. The units were installed at two sites. SITE 1 is located on Charles Street in North Providence and SITE 2 is located on Garfield Avenue in Cranston. Their effectiveness in treating roadway runoff was measured through automatic and manual grab sampling. Eleven storms, which include one winter and ten non-winter, were sampled. Stormwater samples were analyzed for Total Suspended Solids (TSS), total cadmium, total copper, total iron, total lead, total zinc and Total Petroleum Hydrocarbons (TPH). Several problems with the automatic samplers were noticed during several storms. In some cases, effluent samples were collected before influent samples and a mass balance between inflow and outflow could not always be achieved. Only a limited number of storms and samples were analyzed. In addition, instrumentation errors occurred during several storm events. As a result, no conclusions could be reached on the overall efficiency of the Vortechs® system at both sites.

• Corporate Authors:

  University of Rhode Island, Kingston

  Department of Civil and Environmental Engineering
  Kingston, RI  United States  02881

  Rhode Island Department of Transportation

  Research and Technology Development
  Two Capitol Hill
  Providence, RI  United States  02903

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Thiem, Leon T
  • DeRotto, Michael J
• Publication Date: 2006-9

Language

• English

Media Info

• Media Type: Print
• Edition: Final Report
• Features: Appendices; Bibliography; Figures; Maps; Photos; Tables;
• Pagination: 90p

Subject/Index Terms

• TRT Terms: Cadmium; Copper; Effluents; Hydrocarbons; Hydrodynamics; Iron; Lead (Metal); Runoff; Storms; Zinc
• Uncontrolled Terms: Field performance; Hydrodynamic separators; Instrumentation errors; Stormwater treatment units; Total suspended solids
• Geographic Terms: Cranston (Rhode Island); Providence (Rhode Island); Rhode Island
• Subject Areas: Highways; Hydraulics and Hydrology; I26: Water Run-off - Freeze-thaw;

Filing Info

• Accession Number: 01046437
• Record Type: Publication
• Report/Paper Numbers: FHWA-RIDOT-RTD-06-3
• Contract Numbers: SPR-227-2264
• Files: TRIS, USDOT, STATEDOT
• Created Date: Apr 25 2007 1:08PM