Biochar Filter for Constructed Wetlands
The use of a biochar-sand mixture instead of a pure sand filter in constructed wetlands can significantly increase the performance of the plant. This is particularly interesting when the performance limits have already been reached.
Within THREE C, a first prototype has been developed and successfully tested in the field.
Biochar sand filter
Overloaded constructed wetlands are exceeding water quality limits, a situation that requires urgent action by plant operators.
- Target group / clients
Operators of constructed wetlands plants especially in case of existing overload.
Making use of biochar’s filtering properties: Replacing the sand filter with a biochar-sand filter with a volume ratio of 1:1
Improving the performance of existing plants through biochar.
- Unique Selling Point
Probably the most favourable solution for overloaded systems, as the previous system can continue to be used.
Ensure water quality while maintaining plant size.
- Feasibility / Transferability
As there is a high demand for solutions from constructed wetland operators, the concept is easily transferable. sand filter manufacturers could add biochar filters to their product range.