Application of membrane technology in the process of preparation of drinking water

U posljednje vrijeme sve više na važnosti dobivaju membranski postupci obrade vode. Osnova procesa je prisustvo membrana koje rastavljaju ulaznu struju na permeat koji sadrži dijelove materijala koji mogu proći kroz pore membrane i retentat čiji dijelovi se zadržavaju na porama membrane. Membrane mogu biti anorganskog i organskog porijekla (organski polimeri). U tehnologiji vode koriste se membranski procesi: mikrofiltracija, ultrafiltracija, nanofiltracija i reverzna osmoza. Membranski procesi imaju veliku važnost pri uklanjanju željeza, mangana, amonijaka, organskih tvari te arsena koji često u vodama na području istočne Hrvatske prelaze dopuštene granice.Membrane water treatment processes are becoming very important in recent years. Process is based on existance of membrane which divide the feed stream to permeate which contain parts of materials that can pass through the porous membrane and retentate whose components are retained in the pores of the membrane. Membranes can be inorganic and organic origin (organic polymers). Membrane processes used in water technology are: microfiltration, ultrafiltration, nanofiltration and reverse osmosis. Membrane processes have great importance in removing iron, manganese, ammonium, organic matter and arsenic which often in the waters of the eastern Croatia exceeds the limit