Abstract: An alkaline electrolyte solution is electrolyzed by a diaphragm-less electrolyzer to provide electrolytic water as purging and disinfecting water. The alkaline electrolyte solution is a mixture of at least one alkaline electrolyte selected from caustic sodium carbonate, caustic potassium carbonate, phosphorous sodium carbonate and sodium hypochlorite, and at least one neutral salt selected from sodium chloride, potassium chloride, sodium bromide and potassium bromide. The purging and disinfecting water is added to a water circulatory system. The result is that contaminants and noxious chemicals in the circulatory system are oxidation decomposed to thereby purge the circulating water, and noxious microorganisms such as germs, yeasts, fungi, and viruses, growing in the water circulatory system and causing degradation of water or development of slime are disinfected and thereby purged from the water circulatory system. The purging and infecting method can be carried out in a simple manner with minimum cost.

Abstract: A method and device for removing, deodorizing and purifying odor, smoke and harmful substances from exhaust gas or flue gas employs a water solution containing hypohalogenous acid compounds such as sodium hypochlorite, an alkaline electrolyte such as potassium hydroxide or sodium hydroxide and a saline electrolyte such as sodium chloride, potassium chloride, sodium bromide or potassium bromide which is electrolyzed to produce an electrolytic water solution which is fed to a deodorizing tower and brought into contact with exhaust gas or flue gas to remove odor, smoke and harmful substances in the exhaust gas or flue gas.

Abstract: A method and device for removing, deodorizing and purifying odor, smoke and harmful substances from exhaust gas or flue gas employs a water solution containing hypohalogen acid such as hypochlorous acid soda, an alkaline electrolyte such as potassium hydroxide or sodium hydroxide and a saline electrolyte such as sodium chloride, potassium chloride, sodium bromide or potassium bromide which is electrolyzed to produce an electrolytic water solution which is fed to a deodorizing tower and brought into contact with exhaust gas or flue gas to remove odor, smoke and harmful substances in the exhaust gas or flue gas.

Abstract: An alkaline electrolyte solution is electrolyzed by a diaphragm-less electrolyzer to provide electrolytic water as purging and disinfecting water. The alkaline electrolyte solution is a mixture of at least one alkaline electrolyte selected from caustic sodium carbonate, caustic potassium carbonate, phosphorous sodium carbonate and sodium hypochlorite, and at least one neutral salt selected from sodium chloride, potassium chloride, sodium bromide and potassium bromide. The purging and disinfecting water is added to a water circulatory system. The result is that contaminants and noxious chemicals in the circulatory system are oxidation decomposed to thereby purge the circulating water, and noxious microorganisms such as germs, yeasts, fungi, and viruses, growing in the water circulatory system and causing degradation of water or development of slime are disinfected and thereby purged from the water circulatory system. The purging and infecting method can be carried out in a simple manner with minimum cost.