Patent ID: 6451209
Filing Date: 2002-09-17
Classification: C02F

Abstract:
A method of treating a circulated flow of chlorinated water from a swimming pool to remove chloramines, trihalomethanes and adsorbable organic halogens, said method comprisingpassing said flow of chlorinated water through a filter device for filtration of the water, withdrawing from said flow of water at a stage downstream of said filter device a first subflow, passing said first subflow through a UV treatment system, photochemically treating said first subflow of water in said UV treatment system with electromagnetic radiation from one or more UV lamps, withdrawing from said first subflow at a stage downstream of said UV treatment system a second subflow of water, and passing said second subflow of water through a membrane filter device, which membrane filter device is adapted for effecting a treatment by nanofiltration or reverse osmosis.