Membrane technology

The wide range of polymeric and inorganic membranes, diversified according to their degree of porosity and geometry, enables their use in various processes in wastewater treatment:

• microfiltration (MF): separation degree from 3 µ down to 0.1 µ, applied for low pressure separation of high molecular weight substances such as bacteria, yeasts and suspended particles;
• ultrafiltration(UF): separation degree from 1,000 MW up to 1,000,000 MW, applied for the low-pressure separation of low molecular weight components such as colloids and suspended substances as well as viruses and proteins. Dissolved salts and water pass through the membrane;
• nanofiltration (NF): separation degree from 150 to 500 MW, applied for the separation of monovalent salts and low molecular weight organic substances at medium-low pressures;
• reverse osmosis (OI): separation is conducted at high pressure, however higher than the osmotic pressure of the liquid. Monovalent ionic species, mono/bivalent salts as well as other low molecular weight solutes are separated from the water.