BioHaven research reports and peer-reviewed papers
Floating Island International, Inc. and its licensees are heavily invested in research and reporting. Here you will find research reports and peer-reviewed papers demonstrating and quantifying the efficacy of BioHaven® floating islands.
The purpose of this project was to produce and test biomimetic, self-sustaining floating treatment wetlands (“floating islands”) that are designed to remove excess nutrients and other contaminants from lakes, streams, and wastewater lagoons and assess their commercialization potential. Grant funding was received from the State of Montana.
(Headley and Tanner, 2011): Floating Treatment Wetlands (FTWs) are an innovative variant of the more traditional constructed wetland and pond technologies that offer great potential for treatment of urban stormwaters. FTWs employ rooted, emergent macrophytes (similar to those used in surface and subsurface flow wetlands) growing on a mat floating on the surface of the water rather than rooted in the sediments.
(Tanner & Headley, 2007): Reduction of metals, particularly copper and zinc, in urban stormwater has been identified as a priority to protect the health of aquatic ecosystems in the Auckland Region (Auckland Regional Council, 2004). Floating treatment wetlands (FTW), employing emergent plants growing on a mat floating on the water surface, rather than rooted in the bottom sediments, provide an innovative option for treating urban stormwaters.
Peer-reviewed article, by authors Peter Nichols, Terry Lucke, Darren Drapper and Chris Walker, published by Switzerland-based journal MDPI, detailing a Floating Treatment Wetlands performance in a stormwater catchment pond in Queensland, Australia. This is a SPEL WaterClean project, using BioHaven technology.
Abstract: Floating Treatment Wetland (FTW) systems are purpose-built devices designed to replicate the water treatment processes that occur in and around naturally occurring floating vegetated islands. FTWs can be used to improve the water quality of water storage ponds by contributing to water treatment processes through adhesion, filtration, nutrient uptake (direct use by plants), and sequestration. This paper presents the results of a twelve-month investigation into the pollution removal performance of a FTW receiving stormwater runoff from a 7.46 ha urban residential catchment. Overall pollution removal performance was calculated to be 80% for Total Suspended Solids (TSS), 53% for Total Phosphorous (TP), and 17% for Total Nitrogen (TN). TSS and TP concentrations were found to be significantly reduced after FTW treatment. The study demonstrated that FTWs are an effective treatment solution for the removal of pollution from urban stormwater runoff.
Please read this excellent summary of the performance and benefits of BioHaven floating islands in stormwater applications by following this link.
BioHaven Floating Island demonstration projects have been completed by Floating Island International (FII) in collaboration with the USACE, USGS, NRCS, U.S. Forest Service, Government of Singapore, New Zealand’s National Institute of Water and Atmospheric Research, and others. Numerous case studies have been developed for stormwater, municipal wastewater, lakes and agricultural runoff, “living shorelines” and erosion control. Applications for landfill leachate and metals removal have also been explored. These studies show that a BioHaven® (the original floating treatment wetland developed in 2004 by FII) will remove contaminants such as nitrogen, phosphorus, BOD, TSS, and total and dissolved metals.