BMP Trains

Effectiveness of Green Roof Stormwater Treatment Systems Irrigated with Recycled Green Roof Filtrate to Achieve Pollutant Removal with Peak and Volume Reduction in Florida

Martin Wanielista, University of Central Florida
Michael Hardin, University of Central Florida

The effectiveness of a green roof constructed and operated in Florida that is irrigated with recycled green roof filtrate water is examined using experimental chambers and reported on within this research publication. The intensive flat green roof depth is eight inches, and is composed of drainage, pollution control, and growth media with vegetation commonly found in Florida. The purpose of the research is to document the reduction of pollutants and water from the green roof as compared to a conventional roof. Experiments are designed to document the effectiveness of vegetation, irrigation rate and pollution control media. The green roof properties of interest are the filtration and biological processes as well as the green roof’s ability to hold water and increase evapotranspiration.