Method of improving fish breeding conditions operating in ozonated water
AssigneeL'Air Liquide Societe Anonyme a Directoire et Counseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorsAurélie Grimberg, Jean-Marc Rabillier
Life of this patent
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Abstract
A method of improving conditions for breeding aquatic life in a breeding farm comprising the steps of injecting an ozonated gas into a stream of water to achieve a level of ozonation; adding a reducing chemical species to the stream of water in order to substantially remove a possible content of oxidizing by-products and/or ozone resulting from the step of injecting the ozonated gas; and feeding the stream of water to a breeding basin wherein the reducing chemical species is added to the stream of water in situ and continuously between the step of injecting the ozonated gas and the step of feeding the stream of water into the breeding basin.
Claims24
A method of improving conditions for breeding aquatic life in a breeding farm comprising the steps of:
- injecting an ozonated gas into a stream of water to achieve a level of ozonation;
- adding a reducing chemical species to said stream of water in order to substantially remove a possible content of one or both of oxidizing by-products and ozone resulting from said step of injecting the ozonated gas;
- evaluating the content of one or both of dissolved ozone and ozidizing by-products in the water before or after the step of adding the reducing species, to obtain a result;
- and, based on the result of said step of evaluating, adjusting where appropriate, the step of adding the reducing chemical species to the stream of water;
- and
- feeding said stream of water to a breeding basin;
- wherein the reducing chemical species is added to said stream of water in situ and continuously between the step of injecting the ozonated gas and the step of feeding the stream of water into the breeding basin.
An installation for improving conditions for breeding aquatic life comprising:
- a supply line adapted to supply a stream of water for treatment with ozone and deliver the ozone treated water to a breeding basin;
- an injector for adding ozone to said stream of water;
- and
- a second line adapted for a continuous and in situ addition of a reducing chemical species to said stream of water at a point of addition in said supply line in order to obtain removal of a substantial portion of a possible content of one or both of oxidizing by-products of the treatment of the water with ozone, and ozone residue in the water, wherein said second line is connected to said supply line at a point connected at its downstream part to said breeding basin and at its upstream part to a point where the injector adds ozone to said stream of water.
Dependencies are inferred from the claim text.