METHOD FOR TREATING NITROGEN-CONTAINING LIQUID WASTE

摘要

PROBLEM TO BE SOLVED: To provide a method for treating nitrogen-containing liquid waste, by which ammonia can be removed stably from ammonia nitrogen-containing liquid waste for a long period of time. SOLUTION: The method for treating nitrogen-containing liquid waste comprises the steps of: decarbonating ammonia nitrogen-containing liquid waste to decrease carbon dioxide dissolved in ammonia nitrogen-containing liquid waste; nitrifying and denitrifying the decarbonated ammonia nitrogen-containing liquid waste by using an activated sludge treatment method to convert ammonia nitrogen in the decarbonated ammonia nitrogen-containing liquid waste into nitrogen gas and remove the produced nitrogen gas. COPYRIGHT: (C)2007,JPO&INPIT