Incineration of excess sludge is performed to mineralise poorly bio-degradable wastewater pollutants. To calculate a process inventory for sludge incineration, consumption and emission factors were used that quantify the mass of process-related material flows per mass of incinerated sludge (SI Section S6.3). The employed factors were adapted from Köhler, and pertain to a sludge treatment facility comprising unit operations for sludge dewatering, incineration, flue gas purification and steam generation. When modelling sludge incineration for wastewater treatment of the paracetamol process, complete combustion of all excess sludge to CO2 and H2O was assumed.