Hybrid Adsorption-Microfiltration Process for the Pretreatment of Sulfide-Containing Seawater: A Promising Strategy to Mitigate Membrane Fouling.

ABSTRACT: The presence of dissolved sulfides in feed seawater causes severe elemental sulfur fouling in the reverse osmosis (RO) process. However, current pretreatment methods suffer from large footprint, high energy consumption, and limitations in effluent quality. In this study, adsorption and microfiltration are merged into a single process for the pretreatment of sulfide-containing seawater. Powdered activated carbon (PAC) was selected for its superior adsorption capacity (14.6-fold) and faster kinetics (3.9-fold) for sulfide removal compared to granular activated carbon. The high surface area and multiple pore structures of PAC facilitate surface and intraparticle diffusion, as well as anion-π conjugation likely occur between PAC and sulfide. Polypropylene microporous membranes, capable of tole

SUBMITTER: Song L 

PROVIDER: S-EPMC12029300 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature