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THE Results of scientific research and PRODUCT testing

Case Studies

BioHaven Living Shorelines and Floating Breakwaters

1/7/2021

 
Floating Breakwater
Floating Breakwater
Project Location: Louisiana, USA

BioHaven floating island technology is an improved approach for protecting shorelines from erosion and restoring natural vegetation. This technology is variously known as BioHaven Living Shorelines and BioHaven Floating Breakwaters.
The BioHaven matrix is a robust and flexible support structure for plants that has exceptional wave-dampening qualities: instead of simply redirecting possibly destructive energy, waves are safely absorbed. The matrix has a very high tensile strength capable of withstanding 90-mph winds; it is designed to rise and fall with the tide and will rebound if inundated during a storm event.

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Floating Islands Enhance Salmonid Recovery by Creating Alternative Nesting Habitat for Caspian Terns

11/19/2020

 
Overhead view of Caspian Tern island at Sheepy Lake, CA
Overhead view of Caspian Tern island at Sheepy Lake, CA
Project Location:  Dutchy Lake, Oregon and Sheepy Lake, California USA
Bird monitoring results have demonstrated that floating islands can provide secure nesting habitat for Caspian terns and other bird species in areas where no natural nesting habitat exists, and where construction of rock islands is not feasible.

Two recent projects have enhanced recovery of salmonids (salmon and steelhead) by encouraging relocation of Caspian terns to areas far from where juvenile salmonids migrate. Floating islands offer a potentially effective habitat alternative to traditional rock islands if the water depth is greater than 18 inches, or if the water body cannot be drained for construction of a traditional island. 

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Wave Mitigation Testing of BioHaven Floating Island Technology

11/12/2020

 
BioHaven shoreline protection at Lake Hackberry, LA
BioHaven shoreline protection at Lake Hackberry, LA

Research Location:  Holden, Massachusetts
BioHaven® floating islands (floating treatment wetlands or FTWs) have been proven to dampen wave energy in both deep water and shoreline settings. Thus, they represent a powerful new tool to protect levees, valuable shorelines or other erosion-sensitive areas. FTWs from Floating Island International Inc. (FII) are constructed of post-consumer plastic fibers and typically vegetated with native plants, and are available in a variety of sizes and shapes.

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Metra Park, Billings - Stormwater and Nutrient Trading Evaluation Project

10/6/2020

 
Metra Park, Billings, Montana USA
Project Location:  Metra Park, Billings, Montana USA

A BioHaven® Floating Island (floating treatment wetland/FTW) installed in the City of Billings Metra Park stormwater pond has very effectively removed metals, nutrients and other contaminants, with removal percentages from 63% to 98%.
The BioHaven’s effectiveness substantially improved after its vegetation had matured for two growing seasons. The City of Billings was interested in FII technologies to meet MS4 stormwater requirements and the pending Numeric Nutrient Wastewater Standards.

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​Nutrient Removal from Reclaimed Wastewater with BioHaven Floating Islands

9/30/2020

 
BioHavens increase wildlife habitat
Project Location:  Pasco County, Florida USA
An independent study conducted by CH2M Hill demonstrates the ability of BioHaven Floating Island technology to further reduce nutrient levels in reclaimed municipal wastewater, which assisted in meeting total maximum daily load (TMDL) limits.
In addition to removing total nitrogen (TN) and total phosphorus (TP), FTWs provided several additional benefits:
  •  Increasing wildlife habitat;
  •  Reducing local nuisance insect populations; and
  •  Increasing pond aesthetics.

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Wastewater - ​Nutrient Removal with Passive BioHaven Floating Islands

9/3/2020

 
Floating Treatment Wetlands reduce nutrient levels
Project Location:  Elayn Hunt Correctional Facility, St. Gabriel, Louisiana, USA

This case study demonstrates the ability of BioHaven Floating Island (floating treatment wetland / FTW) technology to clean water by substantially reducing nutrient levels.
At a wastewater facility in Louisiana, BioHavens more than doubled removal rates for chemical oxygen demand (COD), ammonia and phosphate. The primary objective was to determine whether the islands could remove unwanted nutrients that were periodically creating noncompliance with the facility’s discharge permit.  The goal is to have the facility continually achieve and maintain compliance.

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​Private Wastewater Treatment with BioHaven Floating Islands - Moonlight Basin

8/31/2020

 
Private Wastewater Treatment
Project Location:  Moonlight Basin Ski Resort, Big Sky, Montana, USA

​This case study demonstrates the ability of BioHaven® Floating Island (Floating Treatment Wetland/FTW) technology to improve municipal wastewater effluent quality.

The goal of reducing the total nitrogen (TN) concentration by at least 10 percent was greatly exceeded during the first year of operation, even at the low temperatures experienced at this facility. A net TN removal rate due to islands of 0.94 lb/yr per cubic foot of island was calculated.

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Treatment of Landfill Leachate Using BioHaven Technology

8/28/2020

 
BioHavens successfully treat landfill leachate
Project Location:  McLean’s Pit Landfill, Greymouth, New Zealand

Landfill leachate is a problematic water stream to treat. Greymouth is a town of approximately 3,000 people on the West Coast of the South Island. The town identified a need for improved treatment of its municipal landfill leachate, which is a dilute

stream because of the area’s extremely high annual rainfall (3.5 m or 140 in). Although only 50% of the recommended volume of BioHavens was installed, the results enabled the city to reach its effluent goals without further investment.

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Algae Removal: Holly Pond

8/27/2020

 
BioHavens effectively removed algae from Holly Pond
Project Location:  Sheridan, Wyoming, USA
The goal of this project is to utilize BioHaven Floating Island (Floating Treatment Wetland / FTW) technology to reduce nutrient concentrations and improve water quality in the Holly Ponds complex located on the west side of Sheridan, Wyoming.  Specific goals are to reduce concentrations of total phosphorus (TP) and total nitrogen (TN) that are causing an annual algal bloom, using minnow growth and harvest as a complementary strategy.  In less than one year, pond water quality and aesthetics were dramatically improved.  


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​Algae: BioHavens Remove Nutrient Loads from Eutrophic Lake - Yingri Lake, Jinan, China

8/26/2020

 
BioHavens fix eutrophic water in China
Primary goal: Algae reduction.
At an urban lake in China, large reductions in chemical oxygen demand (COD), biochemical oxygen demand (BOD), total nitrogen and total phosphorus were measured within three months after BioHaven® Floating Island floating treatment wetlands (FTWs) were installed, which met the project objectives. The primary goal of reducing algae blooms was also achieved.


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Mermaid Pool, New Jersey - Phosphorus Reduction to Remove / Prevent Algae

8/14/2020

 
Phosphorus reduction in New Jersey
Project Location:  Mermaid Pool, Somerset County, New Jersey, USA

​This case study demonstrates the ability of BioHaven® technology to solve the problem of phosphorus overload by substantially reducing total phosphorus (TP) levels.  BioHavens installed by Princeton Hydro in a highly-visible New Jersey waterway removed an estimated 66 pounds of TP in one growing season, preventing algae blooms and odors that would otherwise have occurred.


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Wastewater: Achieving Significant Year-Round Nutrient Removal in Aerated Wastewater Lagoons

7/22/2020

 
Nutrient Removal in Aerated Wastewater Lagoons
Project Location: Rehberg Ranch Residential Subdivision, Billings, MT USA
A BioHaven Floating Island (Floating Treatment Wetland / FTW) incorporating circulation and aeration was installed in an aerated wastewater lagoon. This first generation of Floating Island International’s Streambed technology improved removal rates for ammonia, total nitrogen and total phosphorus by 24%, 20% and 5%, respectively, compared to a control lagoon operated in parallel. Ammonia and phosphorus removal were even higher during the winter months.


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