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1. EP2640668 - A PHYSICO-CHEMICAL PROCESS FOR REMOVAL OF NITROGEN SPECIES FROM RECIRCULATED AQUACULTURE SYSTEMS

Office European Patent Office
Application Number 11805236
Application Date 17.11.2011
Publication Number 2640668
Publication Date 25.09.2013
Publication Kind B1
IPC
C02F 1/42
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
42by ion-exchange
A01K 63/04
AHUMAN NECESSITIES
01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
63Receptacles for live fish, e.g. aquaria; Terraria
04Arrangements for treating water specially adapted to receptacles for live fish
C02F 1/467
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
46by electrochemical methods
461by electrolysis
467by electrochemical disinfection
CPC
A01K 61/00
AHUMAN NECESSITIES
01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
KANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
61Culture of aquatic animals
A01K 63/04
AHUMAN NECESSITIES
01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
KANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
63Receptacles for live fish, e.g. aquaria
04Arrangements for treating water specially adapted to receptacles for live fish
B01J 39/04
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
39Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
04Processes using organic exchangers
B01J 39/18
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
39Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
08Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
16Organic material
18Macromolecular compounds
B01J 49/00
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
49Regeneration or reactivation of ion-exchangers; Apparatus therefor
B01J 49/50
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
49Regeneration or reactivation of ion-exchangers; Apparatus therefor
50characterised by the regeneration reagents
Applicants TECHNION RES & DEV FOUNDATION
Inventors LAHAV ORI
GENDEL YOURI
MOZES NOAM
BENET PERLBERG AYANA
HANIN YURI
Designated States
Priority Data 2011050015 17.11.2011 IL
41444710 17.11.2010 US
Title
(DE) PHYSIKALISCH-CHEMISCHES VERFAHREN ZUR ENTFERNUNG VON STICKSTOFFSPEZIES AUS RÜCKGEFÜHRTEN AQUAKULTURSYSTEMEN
(EN) A PHYSICO-CHEMICAL PROCESS FOR REMOVAL OF NITROGEN SPECIES FROM RECIRCULATED AQUACULTURE SYSTEMS
(FR) PROCÉDÉ PHYSICO-CHIMIQUE POUR LE RETRAIT DE PRODUIT AZOTÉ DE SYSTÈMES D'AQUACULTURE RECIRCULÉS
Abstract
(EN)
The present invention provides processes for removing nitrogen species from fresh water or high salinity water recirculated aquaculture systems. The processes are based on physico-chemical treatments which are performed at ambient temperatures and at low p H values thus keeping the total ammonia nitrogen concentrations below a value which is considered detrimental for the growth or survival rate of cultured fish/shrimp.

(FR)
La présente invention porte sur des procédés pour le retrait de produit azoté d'eau douce ou d'eau à salinité élevée de systèmes d'aquaculture recirculés. Les procédés sont basés sur des traitements physico-chimiques qui sont réalisés à température ambiante et à des valeurs de pH faibles, maintenant ainsi les concentrations d'azote ammoniacal totales au-dessous d'une valeur qui est considérée comme nuisible pour la croissance ou le taux de survie de poissons/crevettes en culture.

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