as fertilizer. In this study, the feasibility of the recovered Ministry P source as a fertilizer was evaluated. The effect of the of enriched-spent lime (ESL) was first assessed in maize, one of the most important crops worldwide. In order to optimize the P cycle in the sugar production process, the Science fertilizer effect was further tested in sugar beet. The P and availability of ESL was investigated at different growth stages, and its effect was compared to the commercial of the fertilizer-TSP. Plants treated with ESL did not perform as well as those treated with the TSP, potentially due State of increased soil pH. The application of a more concentrated North ESL, resulting a minor increase of the pH, or pH ameliorated this effect. Results show the possibility to use the recycled P source as a fertilizer, optimizing the P-cycle and reducing P losses in agricultural waste streams. PProduct Potential of The purpose of this study is to study the long term 1-1-2015 31-3-2018 Finland ? Kari sewage fertilizing effect of sludge bound phosphorus, which is Ministry Ylivainio sludge not yet fully recognized as a possible alternative of phosphorus resource. One aim is also to study the concentrations of in plant selected hazardous substances and pharmaceutical production residues and their possible accumulation to food chain. A novel method for future handling of sewage sludge may be pyrolysis and now also its effect on the above mentioned factors is studied. Sewage sludge is the most significant source of phosphorus (P) that is barely utilized in plant production in Finland. However, it is estimated that easily exploitable P reserves will be depleted in the near future, requiring more efficient utilization of these unused P resources. Low solubility of sewage sludge based P decreases its value as a fertilizer together with occurrence of hazardous substances and pharmaceutical residues, originating from the various domestic and industrial sources. There is also a concern that these harmful organic substances may have adverse effects to soil ecosystem and end up to surface and groundwater
as fertilizer. In this study, the feasibility of the recovered P source as a fertilizer was evaluated. The effect of the enriched-spent lime (ESL) was first assessed in maize, one of the most important crops worldwide. In order to optimize the P cycle in the sugar production process, the fertilizer effect was further tested in sugar beet. The P availability of ESL was investigated at different growth stages, and its effect was compared to the commercial fertilizer-TSP. Plants treated with ESL did not perform as well as those treated with the TSP, potentially due increased soil pH. The application of a more concentrated ESL, resulting a minor increase of the pH, or pH ameliorated this effect. Results show the possibility to use the recycled P source as a fertilizer, optimizing the P-cycle and reducing P losses in agricultural waste streams. Ministry of Science and of the State of North PProduct Potential of sewage sludge phosphorus in plant production The purpose of this study is to study the long term fertilizing effect of sludge bound phosphorus, which is not yet fully recognized as a possible alternative resource. One aim is also to study the concentrations of selected hazardous substances and pharmaceutical residues and their possible accumulation to food chain. A novel method for future handling of sewage sludge may be pyrolysis and now also its effect on the above mentioned factors is studied. Sewage sludge is the most significant source of phosphorus (P) that is barely utilized in plant production in Finland. However, it is estimated that easily exploitable P reserves will be depleted in the near future, requiring more efficient utilization of these unused P resources. Low solubility of sewage sludge based P decreases its value as a fertilizer together with occurrence of hazardous substances and pharmaceutical residues, originating from the various domestic and industrial sources. There is also a concern that these harmful organic substances may have adverse effects to soil ecosystem and end up to surface and groundwater 1-1-2015 31-3-2018 Finland Ministry of ? Kari Ylivainio
ESPP-EU-RD-nutrient-projects-list_v2018-09-14.docx