METHOD AND APPARATUS FOR TREATING WATER

PROBLEM TO BE SOLVED: To reduce heat loss owing to a cooling operation of blowdown water and to suppress consumption of chemicals such as ammonia by reducing load on the desalination of impurity ions by using a desalination unit for selectively removing only impurity ions at high temperature. SOLUTI...

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Hauptverfasser:	SEKI HIDEJI, AKAI YOSHIE, SHIGENIWA SHINOBU, NAGAYAMA HIDECHIKA, OSAKI MASAHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHINBOILERS BLASTING CHEMISTRY CONTROLLING WATER LEVEL DECONTAMINATION ARRANGEMENTS THEREFOR FEED-WATER SUPPLY HEATING LIGHTING MECHANICAL ENGINEERING METALLURGY METHODS OF STEAM GENERATION NUCLEAR ENGINEERING NUCLEAR PHYSICS NUCLEAR POWER PLANT NUCLEAR REACTORS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT SEPARATION STEAM BOILERS STEAM GENERATION TRANSPORTING TREATING RADIOACTIVELY CONTAMINATED MATERIAL TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE WEAPONS
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Zusammenfassung:	PROBLEM TO BE SOLVED: To reduce heat loss owing to a cooling operation of blowdown water and to suppress consumption of chemicals such as ammonia by reducing load on the desalination of impurity ions by using a desalination unit for selectively removing only impurity ions at high temperature. SOLUTION: In a method for treating ammonia-containing water 12 to be treated by using the desalination unit 11 having a pair of diaphragms 14 and electrodes 17 which are arranged to be opposed to each other on the outside of the pair of diaphragms 14 and between which a DC voltage is applied, the water 12 to be treated is treated at ≥100°C to obtain the treated water from which impurity ion components are removed and in which ammonia is concentrated. COPYRIGHT: (C)2010,JPO&INPIT