The application of superfine powdered activated carbon (S-PAC) for drinking water treatment is part of recent advances in nanomaterials to develop microporous materials for adsorption. Micro/Ultrafiltration has been proposed as a means of removing S-PAC from the effluent drinking water stream, however, its affects on flux decline as well as its small scale breakthrough have not been previously explored. This project focuses on characterizing the membrane flux decline caused by S-PAC fouling and various methods to induce aggregation, as well as utilizing synthesized radiolabeled carbon nanospheres to track membrane breakthough.