Unit Processes In RAS Systems: Ultraviolet Light Irradiation

摘要

Ultraviolet light treatment is often used to reduce bacterial loads within the water columns of recirculating aquacul-ture systems. For most effective use, water should have low turbidity and high U.V. transmittance, with ultraviolet dosage tuned to the target organisms. Low-pressure/ high-output amalgam U.V. lamps are often used in RAS applications. Tube-in-shell units are typically used in systems with lower flow rates, while channel arrays are preferred in systems with high flow rates and U.V. dose requirements.