Geosynthetic Filters for Water Quality Improvement of Urban Stormwater Runoff

A properly designed geotextile can effectively capture suspended solids in highway stormwater runoff through a filtration mechanism while maintaining minimal head loss. Because these solids can often carry hazardous pollutants, their removal lessens the deleterious impact of stormwater runoff on aquatic ecosystems. In this study, a geotextile was tested in the laboratory with influent suspensions having a hydraulic loading rate, total suspended solid (TSS) concentration, and particle size distributions similar to those reported for urban highway stormwater runoff. Preliminary results indicate that after a short priming period, a geotextile with an apparent opening size of 150 µm can effectively remove suspended solids to a target concentration of 30 mg/L, a common point discharge water quality target value. The results also showed that the change in hydraulic conductivity of the geotextile filter system can be related to suspended solids captured via a power function, which may be useful to predict the flow rate through the filter during its lifespan.

• Record URL:
  • https://doi.org/10.1061/41165(397)313
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784411650
• Supplemental Notes:
  • © 2011 American Society of Civil Engineers
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Franks, Carmen A.
  • Davis, Allen P.
  • Aydilek, Ahmet H.
• Conference:
  • Geo-Frontiers Congress 2011
  • Location: Dallas TX, United States
  • Date: 2011-3-13 to 2011-3-16
• Publication Date: 2011

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Monograph Title: Geo-Frontiers 2011 Conference: Advances in Geotechnical Engineering

Subject/Index Terms

• TRT Terms: Filters; Geosynthetics; Laboratory tests; Particles; Runoff; Suspended sediments
• Subject Areas: Geotechnology; Highways; Hydraulics and Hydrology; I15: Environment; I42: Soil Mechanics;

Filing Info

• Accession Number: 01346885
• Record Type: Publication
• ISBN: 9780784411650
• Files: TLIB, TRIS, ASCE
• Created Date: Aug 8 2011 2:03PM