Validation test on real scale UV reactor for ballast water treatment

Abstract

Design of UV reactors for drinking water has been widely studied using computational fluid dynamics (CFD) modeling. When combined with collimated beam test (CBT), CFD becomes a powerful tool for verifying the performance of a UV reactor. However, the design of real scale UV reactor for ballast water treatment system (BWTS) has not been extensively studied due to their relatively short R&D history. For this reason, we have attempted to validate the UV reactor through the results of the biological efficacy (BE) test with Tetraselmis microorganism. Through BE tests, we found that 3-log <i>Tetraselmis</i> inactivation was satisfied when the reduction equivalent dose (RED) was higher than that of 1,500 J/m².