METHOD AND APPARATUS FOR REMOVING VOLATILE ORGANIC COMPOUND

PROBLEM TO BE SOLVED: To efficiently decompose and remove a volatile org. compd. by photochemical reaction treatment. SOLUTION: In the removing apparatus 100, water sprinkling nozzles 4 are arranged to the upper part of a treatment tank 1 and an ultraviolet lamp 6 is disposed to the central part of...

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Hauptverfasser:	IWASAKI HISAYOSHI, FUJIMURA ISAO, TAKU KAZUO, HOSOMI MASAAKI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To efficiently decompose and remove a volatile org. compd. by photochemical reaction treatment. SOLUTION: In the removing apparatus 100, water sprinkling nozzles 4 are arranged to the upper part of a treatment tank 1 and an ultraviolet lamp 6 is disposed to the central part of the treatment tank 1 and air nozzles 9 are arranged to the lower part of the treatment tank 1. The water to be treated sprinkled from the water sprinkling nozzles 4 becomes descending water streams while the air ejected from the air nozzles 9 becomes ascending air streams and gas-liquid contact is performed at the almost central part (in the vicinity of the ultraviolet lamp 6) in the treatment tank 1 to perform the mass transfer of the volatile org. compd. in the water to be treated from a liquid phase to a gas phase. Further, the mass-transferred volatile org. compd. is irradiated with ultraviolet rays from the ultraviolet lamp 6 to be oxidatively decomposed. By this constitution, treated water from which the volatile org. compd. is sufficiently removed is easily obtained.