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:
  Filtration Grasses Native Grasses Nitrogen Pollutants Pollution Control Runoff Sewage Treatment Soils Biofiltration Sorption Water Quality Management

  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.
  
  
• Format:
  PDF
• Funding:
  RP 11-23;PI# 0010765
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:a09961d43567a7e1344d51f193a4beb20a3f1db5fdb22746423239a115412084e37b0915d2091b39df3378193378279adb59058d871cf6a11094617d6f212b3a
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/32775/dot_32775_DS1.pdf
• File Type:
  [PDF - 3.84 MB ]