Seawater treatment with mechanistic cartridge filter Seawater passes through cross-flow ceramic microfiltration, then enters the side of a cartridge vessel. A baffle directs water down the outer annulus, water moves radially inward through the pleated cartridge, then flows down the clean center core and exits from the bottom. A high-pressure pump feeds spiral-wound reverse osmosis; permeate becomes drinking water while brine is rejected. 05 · Drinking waterRO product 01 · Seawater intake 02 · Multichannel ceramic MFcross-flow pretreatment Retentate recycle 03 · Cartridge filter 04 · Reverse Osmosis (RO) Brine reject