WATER TREATMENT APPARATUS AND METHOD, AND MAINTENANCE METHOD

PROBLEM TO BE SOLVED: To provide a water treatment apparatus capable of treating a large amount of water and having high durability, and a water treatment and a maintenance method. SOLUTION: Water to be untreated introduced into a water storage tank 9 is fed to a water-sprayed hose 5 by the driving...

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Bibliographische Detailangaben
Hauptverfasser:	KOMINE TERUO, SHICHI TETSUYA, FUJISHIMA AKIRA, AMAMIYA KENICHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a water treatment apparatus capable of treating a large amount of water and having high durability, and a water treatment and a maintenance method. SOLUTION: Water to be untreated introduced into a water storage tank 9 is fed to a water-sprayed hose 5 by the driving force of a pump 7c and dripped from a plurality of holes 5a in the vicinity of the upper end 3b of a flow path part 3a. Since the surface of the flow path part 3a is made superhydrophilic by a photocatalyst, water is spread so as to be full of width, gradually flows downward while forming a thin water film and finally enters the water storage tank 7a. At this time, the flow path part 3a is irradiated with sunlight or ultraviolet rays from a ultraviolet lamp not shown. Then, the photocatalyst coated on the surface of the flow path part 3a causes a photocatalyst reaction by receiving the ultraviolet rays irradiated through the water film to carry out oxidation decomposition of an organic substance in water. COPYRIGHT: (C)2006,JPO&NCIPI