This study aimed to compare the environmental impacts of producing two superhydrophilic UF membranes. The preparation of 1 m 2 of membranes was used as the functional unit (FU). The scope of the study was cradle-to-gate, which includes only the membrane preparation steps while excluding the use phase. All the inputs (such as raw materials and energy consumption) and outputs (such as waste and unreacted raw materials) involved in each stage were considered within the system boundary. The environmental impacts due to machinery and plant production for membrane casting were not considered.