The determination of performances of polysulfone (PS) ultrafiltration membranes fabricated at different evaporation temperatures for the pretreatment of textile wastewater

► The work focused on the effects of evaporation temperature on the performance of polysulfone membrane. ► The pore size and density onto the membrane surface become smaller with the increasing of evaporation temperature. ► The increasing of evaporation temperature decreased the surface roughness of membranes. ► The increasing evaporation temperature largely improved the pretreatment performance of ultafiltration membranes.