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Micron Ratings Before SWRO Membranes in Fouling Coastal Intakes

Micron Ratings Before SWRO Membranes in Fouling Coastal Intakes

The safest default before SWRO membranes is usually a 5 µm absolute cartridge—but that number means little when the coastal intake is carrying algae, colloids or coagulant breakthrough. This guide explains when 1–3 µm filtration is justified, when it becomes expensive theatre, and which operating data should control the decision.