Continuous in-situ therapeutic treatment system for fish in freshwater,from seawater

Abstract

The proposed invention relates to a fish treatment system for in situ disinfection and deworming, using a system of tubes for the transport of live fish throughout the system in fresh water, obtained directly from salt water or seawater, wherein the fish are transported through the different sections of the disinfection system from the sick fish culture unit, through the treatment pond and to the treated fish culture unit, wherein the removal of parasites in fresh water is carried out by chemical, electrochemical, mechanical and energetic means in the treatment pond and, subsequently, the treatment water is treated for the removal of medicine and finally reconstituted to the initial conditions (seawater) to be returned to the environment.

Description

In addition, the fish water separation system of the present invention allows the separation of fish by certain classification parameters, including size, in order to ensure that only fish of a certain size enter the treatment pond, being the fish that do not meet defined grading parameters, discarded and recovered in a separate pond on board the vessel or diverted back to a culture unit. Regarding the filtration systems of the proposed invention, where at least the first and second filters correspond to mechanical filters, and where also at least the second mechanical filter device is fed by gravity from the fish treatment pond and is intended to remove organic matter and parasites that are released during the treatment of the fish in the treatment pond. In a variant of the invention, it further comprises a system for controlling the temperature of the fresh water flow connected to the recirculation circuit of the treatment system, to regulate the temperature of the therapeutic treatment system according to the specific parameters required. The gas removal system of the present invention comprises a degassing device that allows air to circulate to the treatment system to remove gases, including carbon dioxide accumulated in the recirculation flow due to the respiration of the fish in the pond, and return the filtered, disinfected and degassed water by gravity to the fish treatment pond (Q4'). In another embodiment of the invention, the temperature control system comprises at least one device to regulate the temperature (20) of the water prior to the degassing system, to maintain the optimum temperature of the water in the fish treatment pond during the treatment, continuous treatment process. Regarding the Advanced Oxidation Process (AOP) systems known and present in the invention, they are defined as water treatment processes carried out at temperatures and pressures similar to those of the environment that involve the generation of hydroxyl ions (OH-) in sufficient amounts to interact with the organic compounds present in the aqueous medium to be treated. POAs include all catalytic and non-catalytic processes that take advantage of the high oxidizing capacity of the hydroxyl anion (OH-) and differ from each other in the way in which said ion is generated. These processes are mainly based on the "in situ" production of hydroxyl ions that react rapidly with most organic compounds. Hydroxyl ions are optimal among strong oxidizers because they do not generate additional waste, they are not toxic and have a very short half-life, they are not corrosive to equipment, and they can generally be produced by equipment that is easy to handle. The hydroxyl ion reacts non-selectively on organic contaminants in aqueous media, ideally mineralizing them completely into 002, water and inorganic ions. The most important feature of advanced oxidation processes is that they are environmentally friendly. Many AOPs are based on the combination of a strong oxidizing agent (eg ozone, hydrogen peroxide) with a catalyst (some metal ions or photocatalysts) and / or radiation (UV or ultrasound). Thus, the AOP system (18) of the invention is connected to the second water accumulation tank (9), and where the AOP system inactivates, captures and / or eliminates the components, additives and any substance added to the flow of water at the treatment station, converting the treated water into purified, safe and residue-free fresh water. In a variant of the present invention, the therapeutic treatment system additionally comprises a second ultraviolet light radiation device (21) integrated in the recirculation system of the treatment tank located between the filtration device and the treatment tank, for disinfection of the recirculation flow, as an additional element of active disinfection in the continuous in-situ therapeutic treatment system, where any of the ultraviolet light devices emit radiation in the wavelength range of 180 nm to 280 nm; where the emission of radiation close to 254 nm is effective against microorganisms, and where the emission of radiation close to 185 nm is effective in the degradation of organic compounds. Finally, the system of the invention, where the flow of water (Q9) received by the retention and / or mixing pond (19), corresponds to the flow of fresh water treated in the AOP system (18) and coming from the treatment system continuous, free of residues and parasites; and that, in combination with the brine flow (Q3), allows mixing both components and recovering a reconstituted brackish water solution that is harmless to the environment, equivalent to seawater in its initial condition, to be returned to the source of origin. In another variant of the invention, the system for moving the fish from one end to the other inside the treatment pond comprises at least one of the following: a propeller-pond system, a transfer screw system, a of pallets, a system of steps, a system of trays, and any system that allows the orderly and sequential flow of transport of fish inside a container, in which it is ensured that the first fish or group of fish that enters is the first fish or group of fish out. In another embodiment of the invention, the treatment system can be implemented in the naval craft, in facilities for treating fish on land and in any facility that allows direct access to seawater. In another variation of the invention, instead of the system for moving the fish from one end to the other within the pond, the treatment is carried out in blocks, with a determined amount of biomass and for a determined time. In one embodiment of the present invention, the treatment system comprises a turbulence system to mix the flow of fresh water recovered from the treatment system and the brine product of reverse osmosis, which allows both components to be mixed homogeneously and continuously, to obtain a solution of innocuous brackish water product of the therapeutic treatment, to be returned to the sea. Regarding the components to regulate the pH of the treatment water, since the fresh water obtained from the OR process does not have minerals that act as a buffer against the increase in dissolved CO2 caused by the respiration of the fish, the pH drops rapidly at suboptimal levels for the fish, being necessary then to add a base such as CaCO3 (calcium carbonate), NaHCO3 (sodium bicarbonate), Na2CO3 (sodium carbonate), Na2SiO3 (sodium meta silicate) or another to maintain the pH of the water that will be in contact with the fish in a pH range between 6.0 and 7.5. The present invention allows the maintenance of optimal water parameters throughout the continuous therapeutic treatment system, where, for example, oxygen can be controlled automatically by means of at least one oxygen sensor that records the oxygen concentration in the water, of the treatment tank and that is connected to a valve that allows the flow of oxygen from the oxygen production equipment (or oxygen storage tank), where if the level of 02 in the tank drops below a certain level and closes the valve if a certain 02 level is exceeded in the treatment pond water. As part of the normal metabolism offish, they excrete nitrogenous compounds that can become toxic to fish if they accumulate in the water. One way to avoid the above is to replace a percentage of the water with fresh water without nitrogenous compounds continuously (optimal) or in pulses (every time a threshold of nitrogenous compounds is exceeded). The water turnover rate will be determined by the number of fish in the pond, the water temperature, and other factors such as how long the fish have been fasting prior to treatment. Regarding the transport of fish, the invention contemplates a system independent of the initial water pumping device, and that, in addition, only the fish are transported from one pond to another (practically without water), compared to other systems where the fish They are normally transported with a pump that moves water + fish. Thus, before entering the treatment pond, the fish are separated from the water. The fish, separated from the water, enter the pond and the separated water, before returning to the sea, passes through an integrated filter system to retain parasites that are released by the pumping effect, which even contemplates adding a second mechanical filter, connected to the separate waste tank. The present invention further comprises an in-situ treatment method for fish comprising the following steps: a. Extract water from the sea using the corresponding differentiated means, where the extracted sea water is sent to the reverse osmosis system; b. Obtain fresh water from saltwater, through the reverse osmosis system (1), obtaining as a result: a flow of fresh water (Q2) and a flow of brine (Q3) transported separately through the integrated treatment system; c. Add additives to the flow of fresh water (Q2) obtained from reverse osmosis, to stabilize the physicochemical parameters of the water according to the requirements necessary for the operation of the integrated treatment system according to the flow of fresh water measured by a flow meter and produced by the reverse osmosis system; d. Adding at least one therapeutic component necessary for the treatment of fish, according to the flow of fresh water required to carry out the continuous therapeutic treatment in fish, depending on the desired therapeutic objective, and where the flow of fresh water required is measured by a flowmeter; e. Transport and direct the flow of fresh water with the corresponding components added in d) and e) (Q41), to the treatment pond; F. Maintain water quality parameters in an optimal range for the treatment of fish in the treatment pond, depending on the type of fish, biomass and temperature, including: oxygen level, water flow rate, concentration of additives and medicines , by controlling the filling of the treatment tank and continuous renewal of the water in the treatment tank with the flow water (Q41); g. Extract fish from at least one culture unit to the integrated treatment system continuously, using the corresponding differentiated means, where the fish are transported in their aqueous medium from the culture unit to a fish and water separation system, sea; h. Separate the fish from the seawater, in the separating device (2) and transport the fish sequentially, from the fish separating device (2) to the treatment pond (6), where the seawater is separated from the fish (QT) is filtered by means of the first filter device, where any parasite eventually contained therein is also separated from said water prior to its return to the sea (Q1"). i. Once the fish are separated from their aqueous medium, they enter the treatment pond (6) continuously, where prior to entering the pond and also continuously they are subjected to a stage of counting and estimation of physical parameters, including weight and size, which allows estimating the necessary parameters for carrying out the treatment; j. Once the fish are in the treatment pond (6), carry out the in-situ treatment of the fish, including: maintaining a dose of medicine necessary for the in-situ treatment of sick fish, activating the filtering system for the flow of treatment water (Q5) to extract parasites and / or inactivate toxic substances that are affecting the fish being treated, degas the treatment water flow to remove CO2 and return the recirculating treatment water flow (Q6) to the treatment pond , and where the in-situ treatment system comprises a period necessary to carry out the treatment, which further comprises a certain exposure and permanence time for the fish in the treatment pond, regulated by the user; k. Transporting the treated fish continuously to a container unit for treated fish, where the conveyor system comprises a separator device (17) that allows the treated fish to be separated from the water in the treatment pond, where the treated fish are transported to the treated fish unit and the recovered water (Q41) in this way is returned to the treatment pond; I. Continuously extract a portion of the treatment water flow (Q6), towards the second fresh water accumulation pond (9) from which the water flow (Q8) is pumped directly to the AOP system (18), for inactivation of chemical substances, additives, mineralization of medicines and elimination of CO2, obtaining a flow of fresh water purified and free of residues equivalent to the flow of purified water initially obtained as a result of reverse osmosis (Q9), m. Mix the brine (Q3) and the fresh water from the treatment purified and free of residues (Q9), collecting both components in the retention pond (19), throughout the period of treatment of the fish to ensure a homogeneous mixture, n. Release the homogeneous mixture of reconstituted brackish water (Q10), back into the sea. The method of the proposed invention is a continuous process, where the fish make their way through the treatment pond during a journey that ensures a certain time through the treatment pond, allowing the action of the treatment, ensuring its effectiveness. The flow of fish is controlled by a fish counter, which is after the drainage and before they enter the pond, continuously. The method of the invention includes the addition of stabilizing additives to the fresh water resulting from reverse osmosis, including: mineral salts, artificial additives, natural additives, buffer solutions or pH stabilizers, and any other suitable additive to achieve the necessary parameters to carry out the treatment, where the mineral salts can be chosen from the list that includes: CaCO3, NaHCO3, Na2CO3, Na2SiO3, and any other salt that allows maintaining the pH of the treatment water between pH 6.0 and 7.5. Regarding the medicines or therapeutic components indicated in the method of the invention, and added to the treatment tank, they include: medicines for external infections, medicines for internal infections, antiparasitics, anesthetics and any other medicine necessary for the treatment of a specific disease existing in the fish under treatment. In one embodiment of the method of the invention, the therapeutic component to be considered can be chosen from the list that includes: a) Antiparasitics, such as pyrethroids (eg cypermethrin, deltamethrin), organophosphates (eg azamethiphos, trichlorfon), benzoylureas (eg : lufenuron, hexaflumuron, diflubenzuron, triflumuron), neonicotinoids, (eg imidacloprid), amidines (eg cymiazole), phenols (eg bithionol), imidazoles (eg levamisole), formalin, hydrogen peroxide, peracetic acid, chloramine- T, methylene blue, and any other antiparasitic; b) Antimicrobials, such as beta-lactams (eg, amoxicillin), aminoglycosides (eg, neomycin), tetracyclines (eg, oxytetracycline), macrolides (erythromycin), chloramphenicol, sulfonamides (eg, sulfamerazine), potentiated sulfonamides (eg, trimeptropin + sulfadiazine) , nitrofurans (eg, furazolidone), quinolones (eg, oxolinic acid), fluoroquinolones (eg, flumequine), and any other antibiotics; c) Anesthetics, such as benzocaine, tricaine, iso-eugenol, metomidate and any other anesthetics; as well as a mixture of any of said types of therapeutic components. In another embodiment of the method of the invention, where the container unit for treated fish corresponds to the farming unit for diseased fish. In another embodiment of the method of the invention, it can be applied directly to existing fish farming systems without the need for require additional isolation by removing diseased fish from the culture area and returning subsequently treated fish back to the same culture area. In another embodiment of the method of the invention, the effective mixture of recovered fresh water and brine in the treatment pond is carried out by means of the turbulence system, where the turbulence system ensures that the mixture of the components is homogeneous and practically uniform, continuous flow. A variant of the method of the present invention comprises the following steps: a) the treatment pond is loaded with fresh water alone or with some therapeutic agent; b) the water in the treatment pond begins to recirculate; (c) the fish are introduced until reaching the biomass that the system can support; (d) together with the entry of the fish or once they have entered, water is renewed at a rate that allows maintaining optimal water quality parameters in the treatment pond; (e) the same proportion of water that is renewed is derived from the recirculation circuit to the AOP treatment system; (f) once the exposure time of the fish to the treatment is completed, they are transferred to the culture unit; (g) The process is repeated with a new group offish. In another embodiment of the method of the invention, an initial calibration is considered, where the initial calibration in turn comprises the definition of specific parameters, including: the dosage of the therapeutic agent depending on the type of fish and its biomass, type of pathogen to be treated, temperature of the treatment water, rate of recirculation or renewal of water in the treatment pond, the level of oxygen in the treatment pond. Examples of the Invention: Below are some examples that allow a better understanding of the proposed invention, as well as its application: Example 1: Treatment of 70,000 salmon (Salmo salar) of 1.0 kg average weight affected by the external parasite Caligus rogercresseyi in a farm composed of floating cages in the sea (salinity 3.2%, temperature 12°C) through the application from a fresh water bath containing azamethiphos at a concentration of 0.1 mg / l for one hour. The integrated treatment system installed on board a boat that travels by its own means to the farm with fish affected by the parasitic copepod C. rogercresseyi. The treatment pond with a capacity of 300 m3 of water for fish bathing. The boat sits on the edge of the culture cage containing the affected fish, fasted for at least 48 hours before deworming treatment. Before transferring the fish to the treatment pond, fresh water production begins by pumping a seawater flow of 350 m3 / h from a seawater intake installed at the bottom of the ship to the reverse osmosis device. , which generates a flow of 125 m3 / h of fresh water (conductivity less than 75 mS / m) and a flow of 225 m3 / h of brine (approximate salt concentration 4.8%). A concentrated solution of sodium silicate is automatically added to the fresh water by means of a dispenser at a rate of 25 ml per m3 of fresh water produced, in order to stabilize the pH between 6.5 and 7.5. The pH stabilized water enters an accumulation pond and from there is pumped to the treatment pond. Before entering the treatment pond, a concentrated solution of azamethiphos is automatically injected into the flow of fresh water stabilized in pH, in order to reach a therapeutic concentration of azamethiphos of 0.1 mg / l in the treatment pond. Once the treatment pond is filled with fresh water stabilized in pH and containing 0.1 ppm of azamethiphos, the recirculation of the treatment pond water begins and the oxygen 14 11 24 generation equipment, the control and recording device are started up. of environmental parameters of the water and the stabilizer device of dissolved gases. The device for the movement of fish into the treatment pond is also started, which is regulated to ensure a retention time of one hour for the fish in the treatment pond. The 5 fish to be treated are transferred from the culture cage by means of a transfer pump that sucks the fish together with the surrounding water in which they are found at a ratio of 15% fish and 85% water. The mixture of water and live fish is separated in a dewatering device, with the live fish entering the treatment pond at a rate of 30,000 sick fish per hour, in order to maintain a maximum density of close to 100 kg of fish per m3 of water 10 in the treatment pond. The amount of fish entering the treatment pond is recorded continuously by means of the biomass counter and estimator device. A concentrated sodium silicate solution is automatically added to the fresh water using a dosing device at a rate of 25 ml per m3 of fresh water produced, with the aim of stabilising the pH between 6.5 and 7.5. The water stabilised at pH enters an accumulation pond and is pumped from there to the treatment pond. The seawater separated from the fish is filtered prior to its return to the sea, in order to retain the parasites detached from the fish by the effect of pumping and the retained parasites accumulate in a thousand-liter mobile tank for subsequent destruction and Disposal on land according to applicable regulations. Once the first fish enter the 20 treatment pond, the oxygen generating device is regulated in such a way that itautomatically injects a sufficient amount of oxygen into the pond to maintain at all timesan oxygen saturation in the treatment water greater than 70% and less than 120%. The entry of fresh water stabilized in pH and containing a concentration of 0.1 mg / l of azamethiphos into the treatment pond at a rate of 125 m3 / h is maintained throughout the 25 process. Simultaneously, the same amount of water (125 m3 / h) is extracted from the recirculation circuit, thus allowing an adequate renewal of treatment water to maintain a level of ammonia (NH3) in the treatment pond water always less than 0.03 mg. / I, a concentration of dissolved carbon dioxide (CO2) always less than 20 mg / l and a pH between 6.0 and 7.0. 30 Throughout the duration of the treatment, the water recirculation circuit is kept in operation at a rate of 2,000 m3 / h, allowing permanent filtering of the parasites releasedfrom the fish by the effect of the treatment water (fresh water + azamethiphos). The parasites, retained by the 50-micron filtration device and transferred to a parasite accumulation pond for later disposal on land, in an authorized landfill for hazardous waste due to the eventual presence of azamethiphos. One hour after the start of the process, the first fish that entered the treatment pond arrive at the discharge point and are returned without the presence of parasites to the culture center by gravity through a hose into which pumped seawater is simultaneously injected, from a water intake on the boat, allowing safe movement to its destination culture cage. Fish continue to be transferred to the treatment pond continuously until the last sick fish enters the treatment pond and the device for continuous movement of fish from one end of the pond to the other is kept in operation until the last fish has completed his treatment of an hour of exposure to the bathroom. In this example, the total of sick fish (70,000 salmon of 1.0 kg) can be treated with fresh water and azamethiphos in a period of 3.3 hours. The water that is continuously extracted from the recirculation circuit, free of parasites, but with the presence of azamethiphos, is pumped to the advanced oxidation system in order to mineralize the azamethiphos through the action of hydroxyl ions (degradation into CO2, water and minerals). Finally, the flow of water already free of azamethiphos is guided by gravity to a mixing tank where it is homogenized with the flow of brine generated by the reverse osmosis system (225 m3 / h) and a flow of 350 m3 / h is discharged into the sea. m3 / h of reconstituted seawater at 3.2% salinity and without the presence of parasites or azamethiphos. Example 2: Treatment of 70,000 salmon (Salmo salar) of 1.0 kg average weight affected by the gill parasite Neoparamoeba sp. in a culture center composed of floating cages in the sea (salinity 3.2%, temperature 12°C) by applying a fresh water bath for 30 minutes and destroying parasites using UV light. The same procedure as above, but in this case no type of therapeutic agent is added and the forward speed of the fish displacement device inside the treatment pond is increased so that the exposure time of the fish to fresh water is only 30 min, enough to detach the amoebas from the gills of the affected fish. The transfer speed of the fish from the affected culture cage to the treatment pond is therefore increased at a rate of 60 tons per hour, always maintaining a maximum density of 100 kg of live fish per m3 of treatment water. The total duration of the treatment process in this example is 1.46 hours. In this example, the UV light water disinfection device installed in the recirculation circuit is turned on throughout the process and is regulated to deliver a dose of at least 50 mJ / cm2 of UV irradiation close to 254 nm to the water flow, of recirculation (2,000 m3 / h), which ensures that the cells of the amoebas detached from the fish will be completely destroyed and will not be able to re-infest the fish. Since in this example there is no use of a therapeutic agent that could affect the environment, the operation of the advanced oxidation system is not necessary. In any case, the fresh discharge water, filtered and freed from live amoebas, is mixed with the brine from the reverse osmosis system prior to its discharge into the sea. Brief description of the figures: Figure 1. General scheme of the proposed invention, which includes the in-situ fish treatment system (A), in the context of a boat. Figure 2. Detailed diagram of the proposed invention, including the system and details of each of the components necessary for the treatment of fish in-situ. To facilitate the identification of the parts and components of the invention, the list of elements in the figures is listed below: 1. Reverse Osmosis System (RO). 2. Fish Separator (1st). 3. Mechanical Filter. 4. Pond for the accumulation of retained parasites (1st). 5. Fish counter. 6. Treatment Pond. 7. Monitoring and Registration System (1st). 8. Filtration Chamber (2nd mechanical filter). 9. Pond for receiving filtered water. 10. Pond for the accumulation of retained parasites (2nd). 11. Degasser. 12. Mineral dispenser and pH stabilizers. 13. Flowmeter (1st). 14. Fresh water accumulator pond. 15. Flowmeter (2nd). 16. Medicine and anesthetic dispenser. 17. Fish separator (2nd). 5      18. AOP system 19. Retention and / or mixing pond. 20. Temperature controller. 21. UV system. 22. Oxygen Generator. 10       23. Monitoring and Registration System (2nd). 24. Q (1,2,.., 10): Flow

Claims

31 07 241. An integrated system of continuous in-situ treatment for fish in fresh water obtained from salt water or sea water, to eliminate parasites from treated fish and thus avoid 5 reinfection in fish, reducing the risk of the appearance of resistant parasites, and avoid contamination of the marine environment with organic compounds used in the treatment offish, CHARACTERIZED because it includes:a. A fish treatment pond containing within it a system for moving fish from one end of the fish treatment pond to the opposite end of the fish treatment pond, ensuring that the fish 10 receive treatment in a homogeneous and orderly manner, according to their admissionto the treatment system;b. Differentiated and separate means of entry to the treatment system, for the entry of fish and seawater, respectively, where the fish correspond to sick fish, where the seawater (Q1) will be separated into: fresh water (Q2) and brackish mixture (or brine, 15 Q3) being the fresh water used as a medium for therapeutic treatment in the presenttreatment system;c. A fish transport mechanism, for the transport of fish from the differentiated entrance for fish towards the fish treatment pond and through the different sections and stations present in the integrated treatment system;20 d. A first device for separating (2) the fish from the water with which they are transported from the input means to the fish treatment pond;e. A first filter device for retaining parasites (3) located between the fish separator device in d) and a point of direct evacuation to the sea of the water separated from the fish;f. A first receiving pond for parasites (4) retained by the filter device in e);25 g. A counter (5) and weight estimator of the fish transported between the means of entry of fish to the continuous therapeutic treatment system and the fish treatment pond (6), where the fish counter delivers in real time the biomass that enters the fish treatment pond and allows the system operator to record, monitor and maintain optimum fish density in the fish treatment pond at all times;30 h. A first monitoring system (7), registration and regulation of the operating speed of the device for the displacement of the fish within the fish treatment pond that allows31 07 24determining the time the fish remain in the treatment pond and with it the time of exposure to fresh water that may contain therapeutic agents, ensuring a controlled exposure time of fish to the therapeutic treatment in the treatment pond and avoiding overexposure to the therapeutic agent;5 i. A water recirculation circuit (Q5) of the fish treatment pond (6) consisting of (i) at least one second filter device (8), (ii) a receiving pond (9) of filtered water from the second filter device (Q6); (iii) at least one pump to drive the filtered water from the receiving tank (Q7) to (iv) a gas removal system (11) connected to the treatment tank (6) and at least one pump to drive the water filtered from the reception pond (9) to an advanced oxidation 10 system (AOP) (18), for final treatment prior to return to the sea; and (vi) a second pondfor the accumulation of organic matter and parasites (10) separated by the second mechanical filter device (8) from the recirculated treatment water (Q5);j. A controlled production and injection system of oxygen to the fish treatment pond (22), which comprises at least one sensor for measuring the concentration of oxygen in the 15 water of the treatment pond and which also allows injecting in at least one point of the treatment pond the amount of oxygen necessary to the treatment water to support the oxygen demand of the fish being treated and maintain the oxygen level within the optimal range for the fish, throughout the circuit in (i);k. A second system for continuous monitoring and recording of physical and chemical 20 parameters of the water in the treatment pond (23) comprising at least: a sensor formeasuring dissolved oxygen in fresh water, a sensor for measuring CO2 dissolved in fresh water, a sensor for temperature measurement, a sensor for salinity measurement, a sensor for oxidation reduction potential (ORP) measurement and a sensor for pH measurement;25 I. A reverse osmosis system (1) to separate the water from seawater, from its soluble components and other particles present in seawater, to obtain a flow of purified water (fresh water) (Q2) and a flow of brine (Q3) from the flow of seawater (brackish water) (Q1);m. A seawater flow input device (Q1), which feeds the reverse osmosis system in (i), 30 entering seawater into the treatment system;n. A first dosing device (12) to automatically and controlled add the necessary components to the freshwater flow (Q2) to obtain and maintain freshwater quality with optimal physicochemical parameters for the physiology of the fish being treated, which31 07 24can be chosen from the list that includes: minerals and stabilizer compounds and / or pH regulators;o. At least one flow meter (13) that continuously measures the flow of fresh water produced (Q2) and that delivers said information to the dosing device in (n);5 p. A first accumulator pond (14) of fresh water (Q2);q. At least one variable flow pump to pump water from the fresh water storage tank (Q2) to mix the fresh water (Q4) with the water from the recirculation circuit (Q7), passing through a degasser (11) and entering with a flow of stabilized water (Q41);r. At least one level sensor located in the fish treatment pond connected to the freshwater 10 variable flow pump to adjust the flow of replacement water to be added to the treatment pond, during continuous therapeutic treatment;s. A second flow meter (15) that continuously measures the flow of fresh water produced (Q4), connected to a second dosing device;t. The second dosing device (16) to automatically and controlledly add at least one 15 therapeutic and / or biologically active compound, useful for the treatment and / or prevention of one or more fish diseases, to the fresh water flow (Q4) entering the treatment pond (6);u. A second fish separator device (17), to extract and separate the fish from the treatment pond water to a storage area for treated fish, separating them from the treatment water 20 and returning the separated fish water back to the treatment pond;v. The advanced oxidation system (AOP) of organic compounds (18) present in the discharge water (Q8) of the treatment pond (6), which includes at least one oxidation device for the generation of hydroxyl ions (OH-), which can be chosen from the list comprising: an ultraviolet (UV) light device, an electrochemical device, a photochemical 25 device, an oxidizing chemical component and any combinations of these; in order to mineralize organic contaminants into environmentally friendly components, such as CO2, water and inorganic ions;w. A second freshwater accumulation tank (9) that contains therapeutic agents, and that connects the outgoing freshwater flow (Q8) from the water recirculation circuit of the 30 treatment tank (6), with the advanced oxidation system (18);31 07 24x. A retention and / or mixing tank (19), which allows accumulating and mixing the fresh water coming out of the advanced oxidation device (Q9) recovered from the treatment circuit, with the brine obtained from the reverse osmosis process from sea water (Q3); and;5 y. A reconstituted brackish water flow outlet device (Q10), which returns the neutralized and harmless reconstituted brackish water mixture back to the sea.

2. The system of claim 1, CHARACTERIZED in that said system also comprises a naval device that contains it, allowing its operation and continuous operation on the high seas, 10 where the naval device can be chosen from the list that includes, but is not limited to: boat, ship, raft, pontoon and any other appropriate naval device.

3. The system of claims 1 to 2, CHARACTERIZED in that the means of entry of fish to the treatment system allows the entry of fish from a fish container unit, where sick fish or 15 healthy fish that require treatment are found prophylactic, to be treated in the continuous therapeutic treatment system.

4. The system of claim 3, CHARACTERIZED in that the sick fish container unit can be chosen from the list comprising: an additional container unit of the naval artifact in which 20 the treatment system is located, a fish container in a floating farm in the sea, a fishpondin a land-based farm that pumps seawater, and a fish holding unit in a second naval craft.

5. The system of claim 1, CHARACTERIZED in that the osmosis system comprises a pre-filtering system for compounds from seawater, wherein said system comprises the 25 removal of components from seawater in a size range of between 75 and 1 microns, where said removal of the components can be carried out in a single stage, or in multiple sequential stages.

6. The system of claim 1, CHARACTERIZED in that it further comprises a differentiated 30 transport subsystem for the reverse osmosis products independently, including the31 07 24transport of purified water (Q2) from seawater, separated from the transport of brine and other components extracted from seawater (Q3).

7. The system of claim 1, CHARACTERIZED because the fish water separation system allows the separation offish by certain classification parameters, including size, in order to ensure that only fish of a certain size enter the pond, treatment, being the fish that do not meet the defined classification parameters, discarded and recovered in a separate pond on board the ship or derived back to a culture unit.

8. The system of claim 1, CHARACTERIZED in that at least the first and second filters correspond to mechanical filters, and where in addition at least the second mechanical filter device is fed by gravity from the fish treatment pond and is intended to remove organic matter and parasites that are released during the treatment of the fish in the treatment pond.

9. The system of claim 1, CHARACTERIZED in that it further comprises a fresh water flow temperature control system connected to the recirculation circuit of the treatment system, to regulate the temperature of the therapeutic treatment system according to the specific parameters required.

10. The system of claim 1, CHARACTERIZED in that the gas removal system comprises a degassing device that allows air to circulate to the treatment system to remove gases, including carbon dioxide accumulated in the recirculation flow due to the effect of fish respiration in the treatment pond and return the filtered, disinfected and degassed water by gravity to the fish treatment pond (Q41).

11. The system of claim 9, CHARACTERIZED in that the temperature control system comprises at least one device to regulate the temperature (20) of the water prior to the degassing system, to maintain the optimum temperature of the water in the treatment pond of fish during the continuous treatment process.31 07 2412. The system of claim 1, CHARACTERIZED in that the AOP system (18) is connected to the second water accumulation tank (9), and where the AOP system inactivates, captures and / or eliminates the components, additives and any substance added to the water flow in the treatment station, converting the treated water into purified fresh water, safe and free of residues.

13. The system of claim 12, CHARACTERIZED in that the therapeutic treatment system further comprises a second ultraviolet light radiation device (21) integrated in the recirculation system of the treatment tank located between the filtration device and the treatment tank, for the disinfection of the recirculation flow, as an additional active disinfection element in the continuous in-situ therapeutic treatment system.

14. The system of claim 13, CHARACTERIZED in that any of the ultraviolet light devices emits radiation in the wavelength range of 180 nm to 280 nm; where the emission of radiation close to 254 nm is effective against microorganisms, and where the emission of radiation close to 185 nm is effective in the degradation of organic compounds.

15. The system of claim 1, CHARACTERIZED in that the flow of water (Q9) received by the retention and / or mixing pond (19), corresponds to the flow of fresh water treated in the AOP system (18) and coming from the system continuous treatment, free of residues and parasites; and that, in combination with the brine flow (Q3), allows mixing both components and recovering a reconstituted brackish water solution that is harmless to the environment, equivalent to seawater in its initial condition, to be returned to the source of origin.

16. The system of claim 1, CHARACTERIZED in that the system for moving the fish from one end to the other inside the treatment pond, comprises at least one of the following: a pond-propeller system, a screw system transfer, a paddle system, a step system, a tray system, and any system that allows the orderly and sequential flow of transport of fish into a container, in which it is ensured that the first fish or group of fish that enters is the first fish or group of fish that leaves.31 07 2417. The system of claim 2, CHARACTERIZED in that the treatment system can be implemented in the naval artifact, in facilities for treating fish on land and in any facility that allows direct access to seawater.

518. The system of claims 1 to 17, CHARACTERIZED in that instead of the system for moving the fish from one end to the other within the pond, the treatment is carried out in blocks, with a certain amount of biomass and for a certain time.10 19. The system of claims 1 to 17, CHARACTERIZED in that it comprises a turbulence system to mix the flow of fresh water recovered from the treatment system and the brine product of reverse osmosis, which allows both components to be mixed homogeneously and continuously, to obtain a solution of innocuous brackish water product of the therapeutic treatment, to be returned to the sea.15

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