Dynamic Deposition of PDA on a Hollow Fiber Ceramic Membrane for Oily Water Treatment.

ABSTRACT: Ceramic membranes have been widely used in oil-water treatment; however, membrane fouling remains a challenge that must be addressed to improve the process feasibility. A thin layer of polydopamine (PDA) was dynamically deposited on the surface of the alumina hollow fiber membranes to reduce oil adhesion. The PDA-alumina membranes were characterized by using SEM-EDS, AFM, and water contact angle measurements. The performance of the modified membranes was evaluated using synthetic crude oil emulsions (100 mg·L^-1) in a crossflow system. Membranes modified with PDA exhibited 97% oil rejection, and a stabilized permeate flux of 463 L·h^-1·m^-2 with a relative flux reduction of 60% and a flux recovery ratio of 75% was observed after cleaning, indicating lower oil

SUBMITTER: Alves BDSG 

PROVIDER: S-EPMC11307986 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature