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The desire for higher production yields has driven the marine species farmers to shift to increasingly more controlled environments – recirculated aquaculture systems (RAS). A truly successful RAS that makes reared species thrive requires an advanced disease control solution due to continuous water re-use, accumulation of species droppings, and nutrients used in its feed.
This further intensifies as microbiology is disrupted by increasing stocking densities and feeding, potentially making RAS an ideal breeding ground for various bacteria and viruses. UV systems are the best available technology for tackling this issue – including increasing numbers of bacteria outside of the biofilter. ULTRAAQUA UV delivers tested and proved UV solutions for controlling the risk of bacteria outbreak in the RAS without altering other crucial water qualities such as pH and temperature.
Based on in-field experience and R&D ULTRAAQUA UV systems have been designed to meet disinfection requirements even for the most intensive RAS and as of today are responsible for disinfecting over 100 000m3/h RAS water worldwide.
In order to accommodate a high variety of climates and flows, ULTRAAQUA UV systems for aquaculture offer gravity flow, open channel systems, and closed vessel systems – in both stainless-steel and polypropylene materials. This enables the company to provide the best solution for either influent, effluent, or process water that can be installed or retrofitted in a variety of RAS layouts.
Aeromonas salmonicida – 5.0 mJ/cm2; Aeromonas hydrophila – 5.0 mJ/cm2; Flavobacterium psychrophilum – 126 mJ/cm2; Vibrio salmonicida – 1.5 mJ/cm2; Vibrio anguillarum – 4.0 mJ/cm2; Pseudomonas Fluorescens – 11.0 mJ/cm2; Renibacterium salmonicida – 20.0 mJ/cm2; Bacterial Kidney Disease (BKD) – 60.0 mJ/cm2
Infectious Salmon Anemia Virus (ISAV) – 10.0 mJ/cm2; Infectious Pancreas Necrosis Virus (IPNV) – 250 mJ/cm2; Nodavirus – 200 mJ/cm2; Infectious hematopoietic necrosis Virus (IHNV) – 30.0 mJ/cm2; Atlantic Salmon Paramyzo Virus – 240.0 mJ/cm2; Heart Sceletal Muscle Inflammation (HSMI) – 250.0 mJ/cm2; Nervous Necrosis Virus (NNV) – 70.0 mJ/cm2
ULTRAAQUA UV open channel systems offer safe, chemical-free disinfection for…Learn more
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Closed vessel non-corrosive (PP) UV systems are designed for the…Learn more
The ULTRAAQUA UV stainless steel series is a reliable, efficient…Learn more
Designed for saline environments, vertical lamp banks are made from…Learn more
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ULTRAAQUA UV closed vessel systems made from UV-stabilized high-density polyethylene…Learn more
ACN ULTRABARRIER™ non-corrosive (PP) series are designed specifically for intake…Learn more
Once the key water inlet point is secured, one can be sure that the diseases are not entering the control environment through the water intake. This significantly reduces the stress imposed by the dangerous pathogens and microorganisms. As a result, the reared species’ energy is directed into growth which leads to higher food conversion ratios (FCR) allowing to produce an overall healthier and stronger fish.
UV disinfection is the only disinfection method that efficiently inactivates pathogenic microorganisms found in aquaculture without affecting water properties or creating dangerous by-products such as bromates. It makes it an especially ideal solution for hatcheries and grow-out applications.
The higher the quality of water, the less medication is required. Antibiotics are a common solution to control disease outbreaks in aquaculture farms. However, this method makes consumers uneasy since it makes anyone in the supply chain develop resilience and affects everyone’s health. Prevention is the best solution – by securing water with non-chemical UV disinfection, producers can significantly cut the use of antibiotics and produce overall healthier fish for the consumers
Closed units can be customized to match the individual project specifications. Variations of flange size and orientation options (U, L, or Z) help to provide customers with the least effect on the overall hydraulics. Control cabinet features can also be customized to meet the challenging installation location requirements
“THE RESULT OF UV’S THAT WE BOUGHT FROM ULTRAAQUA IS GOOD. I’M SATISFIED WITH THE RESULT, IT CAN REDUCE TOTAL BACTERIA IN THE WATER AND IMPROVE HATCHING RATE TO HIGHER PERCENTAGE THAN BEFORE.”
MR. KORAKOD HONGTHONG, PRODUCTION MANAGER OF MANIT GENETICS CO., LTDRead more
Our ULTRAAQUA UV units are integral parts of our RAS systems, they are trouble-free and we have been impressed by their performance and durability in both freshwater and seawater. The UV sensor output is a great addition and helps with our routine water quality monitoring.
Chris Ensor, Aquaculture Operations Manager, Cawthron InstituteRead more
One of the reasons we chose ULTRAAQUA UV is because we had a pleasant conversation at AquaNor in Trondheim. They are easy to reach in case of questions and the prices were competitive. The required level of biosecurity determines the need for a certain lamp output and ULTRAAQUA UV has done a great job in assisting with this by showing literature that explains the needed dosage to kill a certain disease vector.
Technical Support Manager, Harm KampenRead more