Nutrient recovery to a WW treatment was an add-on process and hence, the GWP of WW treatment was ignored in this comparison. The GWP of fertlizer recovered from various nutrient recovery systems varied between 190 and 3000 g CO2 Eq./kg. When compared with conventional fertlizers, nutrient recovery options had shown a reduced GWP between 56 and 98% (Figure ). In addition, recovering nutrients reduces the import burden on the economy .