sewage phosphorus recovery by the addition of sludge with calciumsilicatehydrate (CSH) particles into the anaerobic calcium digester. The CSH fixates phosphorus as calcium silicate phosphate and reduces the phosphorus concentration in hydrate the sludge water that allows for control of struvite (CSH) formation. The phosphorus-containing recovery can be separated and recovered from the digested sludge. In pilot plant experiments, 21% to 31% of phosphorus contained in digested sludge could be recovered when CSH was added at concentrations of 2 g/L to 3.5 g/L to a mixture of primary sludge and waste activated sludge (WAS) from enhanced biological phosphorus removal. The recovery product contained few heavy metals and a phosphorus content of 18 wt % P2O5, which allows for recycling as fertilizer. The fixation of phosphorus within the digester may increase wastewater sludge dewaterability. The phosphorus recycle stream to the headworks of the wastewater treatment plant is reduced. IF2O - ? ? ? ? Bertrand COOPERL of organic Convers fertilizers derived from livestock manure KIVIREKI Urban The aim of this project is to develop and test different ? ? ? ? agriculture business opportunities of urban agriculture based on as a part of closed nutrient cycles in urban areas. In addition to resource volunteer and free-time urban agriculture, urban efficient agriculture can also be widespread, professional and business economically profitable. This kind of urban agriculture would not only meet the requirements of low carbon and energy efficient food production, more resource efficient nutrient use, but also the challenges that are related to the welfare of urban citizens. This project aims at
sewage sludge with calcium silicate hydrate (CSH) phosphorus recovery by the addition of calciumsilicatehydrate (CSH) particles into the anaerobic digester. The CSH fixates phosphorus as calcium phosphate and reduces the phosphorus concentration in the sludge water that allows for control of struvite formation. The phosphorus-containing recovery can be separated and recovered from the digested sludge. In pilot plant experiments, 21% to 31% of phosphorus contained in digested sludge could be recovered when CSH was added at concentrations of 2 g/L to 3.5 g/L to a mixture of primary sludge and waste activated sludge (WAS) from enhanced biological phosphorus removal. The recovery product contained few heavy metals and a phosphorus content of 18 wt % P2O5, which allows for recycling as fertilizer. The fixation of phosphorus within the digester may increase wastewater sludge dewaterability. The phosphorus recycle stream to the headworks of the wastewater treatment plant is reduced. IF2O - COOPERL of organic fertilizers derived from livestock manure ? ? ? ? Bertrand Convers KIVIREKI Urban agriculture as a part of resource efficient business The aim of this project is to develop and test different business opportunities of urban agriculture based on closed nutrient cycles in urban areas. In addition to volunteer and free-time urban agriculture, urban agriculture can also be widespread, professional and economically profitable. This kind of urban agriculture would not only meet the requirements of low carbon and energy efficient food production, more resource efficient nutrient use, but also the challenges that are related to the welfare of urban citizens. This project aims at ? ? ? ?
ESPP-EU-RD-nutrient-projects-list_v2018-09-14.docx