BioHaven Floating Islands
BioHaven® Floating Islands provide the most significant development in artificial wetland technology. For the first time it is now possible to substantially increase the biological working surface ('biofilm') in existing wetland environments, augmenting the treatment capacity without the need for additional land area. BioHavens create opportunities for continuous wetland function, irrespective of water levels and flow rates. The option to install BioHavens as a functional component of new wetlands allows for a smaller wetland footprint as well as the ability to sequestrate dissolved nutrients and pollutants that would be difficult to achieve with conventional wetland systems.
BioHavens provide a wide range of options for the functional beautification of both natural and artificial wetlands, maturation and ornamental ponds, dams and other waterbodies. The options are limitless. These floating islands may not only be planted with either aquatic or terrestrial plants, they may also be used for growing cut flowers or vegetables, i.e. providing income or food security in addition to improved water quality. Larger versions, with recirculation devices and other features, can be added to existing wastewater treatment plants to cope with meeting effluent treatment needs. The options are endless.
On this page you will find various information materials and brochures. We can assist with the determination of required floating island area for a specific need or treatment goal. Should you need further information, please contact us.

Floating Islands in South Africa
- Cape Town Launch Presentation, October 2011
- Invitation to the introduction of the first Floating Islands in South Africa
Brochures & Fact Sheets
- Floating Islands International Information Brochure
- BioHavens Overview
- BioHaven Floating Islands
- Floating Islands Modules
- Leviathan: Bringing Dead Zones Back to Life
- Floating Treatment Wetlands Fact Sheet
Articles
- Landscape SA, February 2009
- NBC News Online, November 2008
- New Zealand Waste Water Association, 2008
Published Reports
- Floating Islands: Alternative To Constructed Wetlands, Stewart, 2008
- Floating Vegetated Islands for Stormwater Treatment, Headley and Tanner, 2008
- Floating Islands for Stormwater Treatment, Headley and Tanner, 2006
Case Studies
- Ammonia Removal in Aerated Wastewater Lagoons
- Floating Islands Enhance Salmonid Recovery by Creating Alternative Nesting Habitat for Caspian Terns
- Floating Treatment Wetlands Remove Propylene Glycol from Airport Stormwater
- Floating Treatment Wetlands May Remove BPA
- Floating Islands Outperform Constructed Wetlands
- Demonstrating Treatment of Landfill Leachate Using Floating Treatment Wetland Technology
- Latest Generation Floating Treatment Wetland Technology: Achieving Significant Nutrient Removal in Aerated Wastewater Lagoons
- Proving the Concept: Field Test of Floating Treatment Wetland Technology's Ability to Treat Simulated Wastewater
- Early-Stage Floating Treatment Wetland Technology To Achieve Nutrient Removal in Aerated Facultative Wastewater Treatment Lagoons
- Floating Island Provides Bass Spawning Habitat
- Floating Treatment Wetlands to Mitigate Lake Eutrophication: Enhanced Circulation and Nutrient Uptake Expand Fish Habitat
- Demonstrating Treatment of Landfill Leachate Using Floating Treatment Wetland Technology
- Floating Treatment Wetland Technology: Nitrate Removal in Wastewater Lagoons
- Floating Treatment Wetland Technology: Nutrient Removal from Wastewater
- Proving the Concept: Field Test of Floating Treatment Wetland Technology's Ability to Treat Simulated Wastewater
- Floating Treatment Wetland Technology: Total Nitrogen Removal from Wastewater
- Floating Treatment Wetland Technology: Total Phosphorus Removal from Wastewater
- Floating Islands Provide Habitat for Highly Endangered California Clapper Rail
- Marine Environment Case Study: Elfin Cove
- Floating Treatment Wetlands Remove Nutrient Loads from Eutrophied Lake: Yingri Lake
