ASH DEC Umwelt has developed a process to extract recycled phosphorus fertilizer from ash which is a by-product of incineration of biomass/sludge.
The ASH DEC process complements Outotec’s existing biomass incineration solutions based on fluidized bed technology.
The ASH DEC process cleans the ash from biomass/sludge incineration and converts the phosphate into a bio-available fertilizer compound.
Outotec intends to commercialize the technology and build the first full scale commercial fertilizer plant with a suitable partner.
The company said that the natural phosphate resources are fast shrinking, and therefore, the recycling of phosphorous is essential in many countries to secure supply independence for this valuable resource.
