The WTP located in South Korea is a 101,000 m³/d water treatment plant using
flocculation/coagulation followed by sedimentation and sand filtration plus a final
chlorination step to produce drinking water from a natural reservoir. The
seasonal occurrence of taste and order compounds was driving the need for an
advanced treatment step. In 2010 the operator decided to carry out pilot tests to
test the possibility to remove this compound with a low or medium pressure UV
based advanced oxidation process (AOP). The pilot test showed a significant
lower electrical energy demand (EED) for the low pressure system (EED = 70
W/m³) compared to the medium pressure system (EED = 144 W/m³) to achieve
a 0.5 LOG reduction of 2-Methylisoborneol (2-MIB). The results of the pilot
trials were the base for the design of the full scale system capable to treat up to
4419 m³/h of drinking water using low pressure lamps
