Large areas of land are necessary because water must flow through a wetland in a shallow dispersed manner.

BioHavens require no land accommodation and can be placed directly in any water body.

In a wetland the plant shoots and stems that are exposed to water provide surface area for microbial growth essential to removing pollutants.  Wetlands offer considerably less service as on a per-square meter-basis than BioHavens.

BioHavens are designed to maximize surface area or habitat for microbial growth essential to removing pollutants.  Even without plants, BioHavens support vast microbial populations.  Additionally, as the BioHavens are weight-bearing, they will support parks, playgrounds, multi-use facilities, and other public spaces, while at the same time improving water quality.  With the addition of plants, surface area for microbial growth is enhanced dramatically. Plant roots suspended in the water column provide an enormous amount of additional surface area that cannot be found in a typical wetland.

Wetlands require optimal hydraulic design and construction to disperse water.  Overtime, wetlands become clogged, causing water to channel through a narrowing course, which limits its overall effectiveness.  Maintenance requires periodic dredging and reseeding.  Overall construction and maintenance costs are substantially more expensive than those of BioHavens, and time-to-launch is up to six times greater.

BioHavens require minimal infrastructure for installation and will continue to function indefinitely with minimal maintenance.  As a result, they are a cost-effective solution and can be fully deployed in a matter of months.

Only aquatic plants can grow in a typical wetland.

BioHaven Floating Islands are engineered to grow both terrestrial and aquatic plants.  Terrestrial plants create larger root structures and remove greater amounts of nutrients from the water.

Wetlands require substantial areas of land with minimal side benefits for public use, thus making them increasingly costly for use in areas of high population density.

As weight-bearing floating islands, BioHavens can be used for a variety of recreational and commercial purposes, including, among others, parks, playgrounds, floating walkways, and floating gardens.

Land scarcity, construction costs, and maintenance requirements make constructed wetlands less cost-efficient.

BioHavens outperform wetlands and are more economical than any established water treatment technology.