A new type of Floating Ecosystem was launched in November at Chew Valley Lake outside of Bristol UK. The island’s natural phosphorous binding capacity is enhanced with 10 cells, containing 5m3 of active phosphorus binding media. This unique ecological integrated system is a pioneering approach to actively bind and fully remove excess phosphorus from waterbodies.

The lake’s water is transported through the active media cells utilising an onboard solar system, which circulates it through the media with a direct drive 12v DC pumping system. The integration of this along with the use of native aquatic plants, and the natural binding capacity of the Biomatrix Planting substrate, will enhance the overall removal of phosphorus from the lake.

The media cells are split into two trains, with different media blends, to allow different media types to be compared and optimised over time. The media is contained within permeable bulk bags, to allow it to be changed out once maximum phosphorous absorption has been achieved. The media is of European origin and natural content to allow the absorbed phosphorus containing material to be beneficially applied for agricultural purposes once removed.

Bristol Water have taken a pioneering approach to the challenges of managing phosphorus in waterbodies, with nature-based solutions. Despite the challenging weather conditions, the Biomatrix RSE team, with the support of the Bristol Water team, as well as the Chew Valley Sailing Club, were able to assemble and launch this new Solar Active Island in two and a half days on site.

 

“It is brilliant to work with Biomatrix as they have the expertise and enthusiasm to create a bespoke solution within our constraints and bring it to life.”

Helen Gavin, Senior Environmental Lead, Bristol Water

Working together, in collaboration with nature is a success for all.