同©大号 Tongji University Range of Membrane for Liquid Separation Sand Nominal pore size EVAC Effective pore size filtration Microfiltration Salmonella Ultrafiltration Hair Giardia Legionella Polio Nanofiltration virus Visible to Crypto- Nematode Reverse eye sporidium Helminths Osmosis egg 10nm 1nm 0.1nm 100μm 10 0.1 0.01 Pollen Yeast Bacteria Viruses Dissolved Colloids salts Organic macromoleculesTongji University Range of Membrane for Liquid Separation