Phosphorus recovery from ashes of co-combustion of sewage sludge and wood Phosphorus recovery from ashes of co-combustion of sewage sludge and wood Start date: 2003-01-15 End date: 2005-05-15 Project Leader Anita Pettersson Docent Associate Professor 033-435 5982 anita.pettersson@hb.se Head of Research Lars-Erik Åmand, Bengt-Åke Andersson