METHOD FOR REMOVING NITROGEN BY USING STRING-LIKE FIBER ASSEMBLY AND APPARATUS FOR THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a method capable of obtaining treated water by removing nitrogen by a simple treatment process without the need for adding methanol to the water.

SOLUTION: The method for removing the nitrogen comprises storing the water 10 to be treated into a storage section 2 for the water to be treated having an anaerobic atmosphere in the interior 7 thereof, dipping a filter member 3 composed of the assembly of a plurality of string-like fiber assemblies disposed in the storage section for the water to be treated into the water to be treated to form a microorganism colony 1 and allowing the treated water 8 to flow out of the filter member in the state that the water is controlled to the oxidation reduction potential of a prescribed range in such a manner that the dissolution of the ammonia nitrogen is little and organic materials are well dissolved in the microorganism colony.

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