Patent ID: 6080315
Filing Date: 2000-06-27
Classification: B01J,C02F

Abstract:
A process for the partial desalination of drinking water using ion exchangers with subsequent regeneration of the ion exchangers; said drinking water containing inorganic salts and organic carbon compounds, said process comprising the steps of: contacting said drinking water with ion exchangers comprising a mixture of weakly acidic cation exchangers and strongly basic anion exchangers in filters such that the content of said salts and said organic carbon compounds is simultaneously reduced by said ion exchanger, thereby producing charged ion exchangers and purified water; regenerating the charged ion exchangers with CO.sub.2 -containing water and intermittently regenerating charged ion exchangers with a solution containing the compounds HCl, NaCl and NaOH whereby producing regenerated ion exchangers; flushing the regenerated ion exchangers with flushing water; and repeating the preceding steps of the process.