Bacterial and viral diseases create serious problems in semi-intensive and intensive aquaculture.Use of surface water in flow-through systems represents a risk of contamination by introducing waterborne fish pathogenic microorganisms.Such contamination results in heavy losses in aquaculture worldwide, and has also limited the progress in commercial farming of new aquacultural species. Some commercial operations may be required to disinfect their discharge water before release into the aquatic environment. Of serious concern are dependable means of controlling pathogens present in the inlet water. Disinfection by ozonation or UV-irradiation are two methods ofter applied in aquaculture. It is important to distinguish between disinfection of makeup waters (low organic loads) and recirculating aquaculture system (RAS) waters.
The C wavelength of the UV spectrum targets the DNA of microorganisms, destroying their cells and making replication impossible. Directed at a cooling coil or drain pan, UVC energy destroys surface biofilm, a gluey matrix of microorganisms (bacteria, fungi, debris,etc.) that grows in the presence of moisture. Biofilm is prevalent in HVAC systems and leads to a host of indoor air quality (IAQ) and HVAC operational problems that are sometimes mistakenly attributed solely to mold. UVC also destroys airborne viruses and bacteria that circulate through an HVAC system.
By applying the power of UVC at the source of contamination - the HVAC evaporator coils and drain pan - XPES UVC destroys the reservoir of microorganisms. Without the ability to reproduct, microorganisms become inactive and harmless. The recirculating air in HVAC systems creates redundancy in exposing microorganisms to UVC, ensuring multiple passes so the light energy is effective against large quantities of airborne microorganisms. XPES UVC delivers the highest UVC output, driving HVAC system efficiency while improving indoor air quality.
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