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

Burns, Susan E.; Caruso, Nicole T.; Georgia Institute of Technology. School of Civil and Environmental Engineering

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

2015-07-27
By Burns, Susan E. ; Caruso, Nicole T.

[PDF-3.84 MB]

English

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Details:

Creators:

Burns, Susan E. ; Caruso, Nicole T.

Burns, Susan E. ; Caruso, Nicole T. Less -
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

Georgia. Dept. of Transportation. Office of Research ; United States. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

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

FHWA-GA-16-11-23 ; RP 11-23 ; T.O. 02-102

FHWA-GA-16-11-23 ; RP 11-23 ; T.O. 02-102 Less -
Resource Type:

Tech Report
Geographical Coverage:

United States ; Georgia

United States ; Georgia Less -
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, Indian grass, 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 right-of-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

RP 11-23 ; PI# 0010765 Less -
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:3da2a41e9e7f01e21e94097ac2996149ae85c7e6904cc7479302205b403d5717
Download URL:

https://rosap.ntl.bts.gov/view/dot/32775/dot_32775_DS1.pdf
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Treatment of highway runoff : engineered filter media for pollutant removal through enhanced sorption : final report.

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