The treatment of surface run-off waters from an equine paddock area with ferric sulphate

摘要

The Finnish horse industry has been growing with about 1000 horses annually. It has been assessed that there are about 35 000 paddocks for 70 000 horses. The trampling of horses increases the risk for surface run-off from the paddocks and the faeces also make them critical source fo phosphorus. A chemical method for treatment of run-off water from a paddock was tested in Ypäjä (SW, Finland).