Why ClO₂  > Comparison  > ClO₂ vs. UV

ClO₂ vs. UV

More effective against spores, cysts...

Both UV and ClO₂ require short contact times for inactivation of microorganisms and are unaffected by ammonia in the water. However, UV is less effective against spores, cysts and viruses and low turbidity water is required for effective treatment. UV systems are costly to install, operate and maintain. A back-up power supply is often specified for a UV system which adds significant cost to the system because of the high power demand.

Because UV treatment provides no residual disinfectant, bacteriological testing is required to determine the effectiveness, taking more than 24 hours to complete.

UV final treatment combined with ClO₂ pre-treatment can be a very effective water treatment solution.