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1. WO1997035466 - STERILIZER FOR CIRCULATION NUTRICULTIVATING APPARATUS, NUTRIENT SOLUTION STERILIZING METHOD USING THE SAME, AND CIRCULATION NUTRICULTIVATING APPARATUS

Publication Number WO/1997/035466
Publication Date 02.10.1997
International Application No. PCT/JP1997/001016
International Filing Date 26.03.1997
Chapter 2 Demand Filed 14.04.1997
IPC
C02F 1/28 2006.1
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
28by sorption
C02F 1/32 2006.1
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
30by irradiation
32with ultra-violet light
C02F 1/50 2006.1
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
50by addition or application of a germicide or by oligodynamic treatment
CPC
C02F 1/283
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
28by sorption
283using coal, charred products, or inorganic mixtures containing them
C02F 1/325
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
30by irradiation
32with ultra-violet light
325Irradiation devices or lamp constructions
C02F 1/50
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
50by addition or application of a germicide or by oligodynamic treatment
Applicants
  • MITSUBISHI CHEMICAL CORPORATION [JP]/[JP]
Inventors
  • SUZUKI, Mitsuo
  • MATSUURA, Kazushi
Agents
  • HASEGAWA, Koji
Priority Data
8/7024226.03.1996JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) STERILIZER FOR CIRCULATION NUTRICULTIVATING APPARATUS, NUTRIENT SOLUTION STERILIZING METHOD USING THE SAME, AND CIRCULATION NUTRICULTIVATING APPARATUS
(FR) STERILISATEUR POUR APPAREIL DE CULTURE HYDROPONIQUE A CIRCULATION, TECHNIQUE DE STERILISATION D'UNE SOLUTION NUTRITIVE AU MOYEN DE CELUI-CI ET APPAREIL DE CULTURE HYDROPONIQUE A CIRCULATION
Abstract
(EN) A circulation nutricultivating apparatus in which waste products (water soluble organic substances) egested from roots are removed, propagation of pathogen in the nutrient solution is suppressed, the number of replacements of the nutrient solution is decreased and replacement of the nutrient solution is dispensed with in some cases. The nutrient solution is pumped from a nutrient solution tank (3) by means of a supplying pump (2), passed through an activated charcoal filled bath (5), and sterilized with activated charcoal. It is favorable to use silver impregnated activated charcoal. To more effectively remove the waste products in the nutrient solution by adsorption, ultraviolet radiation may be applied to the nutrient solution, when a titanium-dioxide-filled bath is additionally used or titanium-dioxide-impregnated charcoal is used.
(FR) Appareil de culture hydroponique à circulation grâce auquel les déchets (substances organiques hydrosolubles) évacués par les racines sont éliminés, la propagation des substances pathogènes dans la solution nutritive est supprimée, le nombre de remplacements de la solution nutritive est réduit, ces remplacements étant même supprimés dans certains cas. La solution nutritive, pompée à partir d'un réservoir (3) au moyen d'une pompe d'alimentation (2), passe par un bain (5) rempli de charbon activé, qui stérilise la solution. Il est préférable, pour le bain, d'employer du charbon activé imprégné d'argent. Pour éliminer plus efficacement les déchets de la solution nutritive par adsorption, on peut exposer la solution nutritive aux rayons ultraviolets lorsqu'on emploie en outre un bain rempli de dioxyde de titane ou du charbon imprégné de dioxyde de titane.
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