EPA Science Inventory

Hydraulic Test of a Bioretention Media Carbon Amendment

Citation:

STANDER, E. K. AND M. BORST. Hydraulic Test of a Bioretention Media Carbon Amendment . JOURNAL OF HYDROLOGIC ENGINEERING. American Society of Civil Engineers (ASCE), Reston, VA, 15(6):531-536, (2010).

Description:

Rain gardens effectively remove some stressors from stormwater, but in most cases they show much smaller removal rates of nitrate, likely due to the high sand and low organic matter content of rain garden media inhibiting denitrification. A bench-scale experiment was conducted to test the drainage capability of media containing shredded newspaper layers as a carbon amendment. Stormwater was introduced at low and high rates to bins containing zero, one, and two layers of newspaper at varying depths. While there were differences in effluent volumes and flow rates between control and newspaper treatments, surface ponding occurred in all three treatments, suggesting that some other factor besides the newspaper had an effect on drainage properties. Grain size and clay mineralogy analyses indicated the migration of finer particles into the deeper soils which could have inhibited drainage.

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Record Details:

Record Type: DOCUMENT (JOURNAL/PEER REVIEWED JOURNAL)
Start Date: 06/01/2010
Completion Date: 06/01/2010
Record Last Revised: 06/10/2010
Record Created: 04/21/2009
Record Released: 04/21/2009
OMB Category: Other
Record ID: 207003

Organization:

U.S. ENVIRONMENTAL PROTECTION AGENCY

OFFICE OF RESEARCH AND DEVELOPMENT

NATIONAL RISK MANAGEMENT RESEARCH LABORATORY

WATER SUPPLY AND WATER RESOURCES DIVISION

URBAN WATERSHED MANAGEMENT BRANCH