Reverse Osmosis And Nanofiltration 📥

Fouling, or the accumulation of contaminants on the membrane surface, is the "Achilles' heel" of these systems, requiring robust pre-treatment (e.g., UF, chlorination, pH adjustment).

Modern membranes utilize thin-film composite (TFC) structures, with emerging materials like graphene oxide (GO), carbon nanotubes (CNTs), and biomimetic materials showing promise for higher permeability and chemical resistance. Primary Applications Reverse Osmosis and Nanofiltration

Uses dense, high-pressure membranes to reject almost all dissolved salts (monovalent/divalent), organic compounds, and microorganisms (>99% rejection). It is the standard for seawater/brackish water desalination. Fouling, or the accumulation of contaminants on the

Recent advancements focus on lowering operating pressures and improving pressure recovery devices (PRDs) to reduce energy consumption. It is the standard for seawater/brackish water desalination

An intermediate process between Ultrafiltration (UF) and RO, often called "membrane softening". It operates at lower pressures, allowing some monovalent ions (e.g., sodium, chloride) to pass while effectively removing multivalent ions (e.g., calcium, magnesium) and larger organic molecules. Key Performance Factors