Treatment of highway runoff : engineered filter media for pollutant removal through enhanced sorption : final report.

Details

• Creators:
  Burns, Susan E. ; Caruso, Nicole T.
• Corporate Creators:
  Georgia Institute of Technology. School of Civil and Environmental Engineering
• Corporate Contributors:
  Georgia. Dept. of Transportation. Office of Research ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Sorption
  • Runoff
  • Water quality management
  • Sewage treatment
  • Pollutants
  • Pollution control
  • Filtration
  • Grasses
  • Nitrogen
  • Soils Biofiltration
  More +
• Publication/ Report Number:
  FHWA-GA-16-11-23;RP 11-23;T.O. 02-102
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States;Georgia
• Edition:
  Final report
• Corporate Publisher:
  Georgia. Dept. of Transportation. Office of Research
• Abstract:
  The work performed in this study focused on the investigation of the use of ; engineered biofiltration layers to enhance the removal of roadway stormwater runoff ; contaminants (specifically nutrients, solids, heavy metals, and pH). Six Georgia native grasses as ; well as one turf grass were tested in the column study, along with a permanently saturated zone ; for biofiltration enhancement. Results indicated that Big Bluestem, Indiangrass, and Switchgrass, ; when paired with a permanently saturated zone, removed the highest percentage of total nitrogen ; across all experiments (4%, 13%, and 18% respectively). These species contained thick and dense ; root systems that spanned the entire length of the biofilter column. Removal of nitrate was ; enhanced with a saturated zone, while ammonium removal decreased. A permanently saturated ; zone increased removal of phosphorus, copper, and zinc (removal of lead was >97% in all cases. ; The results demonstrate that the addition of active biofiltration layers to BMPs on GDOT rightof-ways ; can be an important component in the reduction of contaminant loading in stormwater ; that is being discharged to environmentally sensitive environments.
  More +
• Format:
  PDF
• Funding:
  RP 11-23;PI# 0010765
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/32775/dot_32775_DS1.pdf
• File Type:
  [PDF - 3.84 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:a09961d43567a7e1344d51f193a4beb20a3f1db5fdb22746423239a115412084e37b0915d2091b39df3378193378279adb59058d871cf6a11094617d6f212b3a