METHOD AND APPARATUS FOR CONTROLLING CONCENTRATION OF FREE CHLORINE, AND STERILIZATION METHOD AND STERILIZATION APPARATUS EACH UTILIZING SAID METHOD AND SAID APPARATUS

Provided are: a novel method for controlling the concentration of free chlorine easily; a sterilization method employing the method; and a novel apparatus for controlling the concentration of free chlorine easily. In the disclosed method, the concentration of free chlorine is controlled using a plur...

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Bibliographische Detailangaben
Hauptverfasser:	TANAHASHI, Masakazu, WATANABE, Junichi, LU, Rongfu, FUJIWARA, Masato
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS THEREFOR CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES CHEMISTRY DISINFECTION, STERILISATION, OR DEODORISATION OF AIR ELECTROLYTIC OR ELECTROPHORETIC PROCESSES ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS HUMAN NECESSITIES HYGIENE MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEDICAL OR VETERINARY SCIENCE METALLURGY METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	Provided are: a novel method for controlling the concentration of free chlorine easily; a sterilization method employing the method; and a novel apparatus for controlling the concentration of free chlorine easily. In the disclosed method, the concentration of free chlorine is controlled using a plurality of electrodes. The method includes a process of (i) and a process of (ii) in this order. In the process of (i), the potential of a first anode and the potential of a first cathode are adjusted in an aqueous solution (30) containing chloride ions so as to increase the concentration of free chlorine in the aqueous solution (30). In the process of (ii), the potential of a second anode and the potential of a second cathode are adjusted in the aqueous solution (30) so as to decrease the concentration of free chlorine in the aqueous solution (30). The difference between the potential of the second anode and the potential of the second cathode in the process of (ii) is smaller than the difference between the potential of the first anode and the potential of the first cathode in the process of (i).