Output 4. A system to produce or recover valuable products and mineral nutrients from POME biogas fermented sludge and wastewater is established.
4.1 Struvite is recovered as the precursor of fertilizer
4.2 Nitrogen, phosphorous and potassium are absorbed from treated wastewater
4.3 Phototrophic microbiome is produced using POME.
4.4 Growth promoting effects, pathogenic risks and energy balance of the developed fertilizers and phototrophic microbiome are evaluated