Title:
ULTRAVIOLET TREATMENT DEVICE
Document Type and Number:
Japanese Patent JP2014223583
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an ultraviolet treatment device which prevents water to be treated from being exposed to an excess amount of ultraviolet radiation in ultraviolet treatment.SOLUTION: An ultraviolet treatment device includes: at least one fluorescence analyzer 11 for water to be treated, which measures the fluorescence intensity of water to be treated; a dissolved oxygen analyzer 12 which measures the dissolved oxygen concentration in water to be treated; an ultraviolet irradiation unit 14 disposed in an ultraviolet irradiation vessel 13, which irradiates ultraviolet to water to be treated, at least one fluorescence analyzer 15 for water to be treated, which measures the fluorescence intensity of the water treated with ultraviolet; and an ultraviolet irradiation amount control unit 16a which obtains the necessary amount of ultraviolet for ultraviolet treatment of water to be treated, using the measured fluorescence intensity of water to be treated, dissolved oxygen concentration, and fluorescence intensity of treated water as parameters, in accordance with a predetermined rule, and controls the ultraviolet irradiation unit 14 such that ultraviolet is irradiated in the obtained necessary amount.
Inventors:
NAKANO SOICHIRO
UMIGA NOBUYOSHI
HATANO AKINORI
OTAKI MASAHIRO
UMIGA NOBUYOSHI
HATANO AKINORI
OTAKI MASAHIRO
Application Number:
JP2013103717A
Publication Date:
December 04, 2014
Filing Date:
May 16, 2013
Export Citation:
Assignee:
TOSHIBA CORP
TOSHIBA PLANT SYS & SERVICES
UNIV OCHANOMIZU
TOSHIBA PLANT SYS & SERVICES
UNIV OCHANOMIZU
International Classes:
C02F1/32; C02F1/50; C02F1/78; G01N21/64
Attorney, Agent or Firm:
Hidekazu Miyoshi
Yukikuni Iwasaki
Toshikazu Takahashi
Masakazu Ito
Toshio Takamatsu
Yukikuni Iwasaki
Toshikazu Takahashi
Masakazu Ito
Toshio Takamatsu