VIDEO A sediment and reactive filter system for drainage water
03 November 2021 - Published by Charlotte BoeckaertAarhus University and Copenhagen University set up a test site in the Fensholt catchment (Denmark) for a filter system consisting of a sediment and a reactive filter that removes both particulate and dissolved phosphor from agricultural drainage water. Discover more in the video.
The sediment filter consists of lamellae and a mesh filter that retains particles. The reactive filter consists of a cylindrical iron net cage with granules of Diapure™, a calcinated diatomaceous earth with an iron oxide coating. Drainage water flows from the outside to the inside of the filter due to the hydraulic gradient.