16The effects of controlled temperature variation in the range of 10 -45 C were assessed in a 17 lab-scale MBR that treated synthetic municipal wastewater spiked with selected 18 micropollutants. The effects were evaluated with respect to total organic carbon (TOC) and 19 total nitrogen (TN) removal, micropollutant removal, sludge growth, level of soluble 20 microbial products (SMP) in the mixed liquor and membrane fouling. Overall, the 21 temperature shifts caused high variation in the TOC and TN levels in the reactor supernatant, 22however that in membrane-permeate was relatively more stable, substantiating the robustness 23