BONUS PROMISE results published in 'Science of The Total Environment' - how to improve phosphorus utilisation from manure and sewage sludge and prevent phosphorus from ending up in the Baltic Sea
The best way to prevent the nutrients from ending up in the Baltic Sea is to cycle them
With the underlined negative impact nutrients from agriculture and other sources have to the fragile Baltic Sea and its greatest problem of eutrophication, BONUS PROMISE Phosphorus recycling of mixed substances tackled an important question of how to improve phosphorus utilisation from manure and sewage sludge and this way prevent phosphorus from ending up in the Baltic Sea. The project found that positive attitude of consumers towards recycled fertilizers is an utmost importance for efficient phosphorus recycling. BONUS PROMISE provided knowledge on how thermophilic anaerobic digestion and pasteurization may reduce the contamination risk of some pathogens but not those of heavy metals or antibiotics. The study also demonstrated ways to eliminate most of the risks by gasification and further treatment of the ash. These results are now available for the decision makers to promote better quality of recycled fertilizers and to enhance the circular economy of valuable phosphorus resources.
Further reading suggestion, a new article published on BONUS PROMISE results:
Contamination of organic nutrient sources with potentially toxic elements, antibiotics and pathogen microorganisms in relation to P fertilizer potential and treatment options for the production of sustainable fertilizers: A review
Volumes 607–608, 31 December 2017, Pages 225-242