A slaughterhouse in France was faced with bacteria buildup in the bath water used to conceal wax applied for feather removal. The bath water was typically dumped each day but became contaminated within minutes of starting up the production. An AOP system was installed to treat re-circulated water from the bath. The result was excellent control of bacteria in the tank throughout the full production cycle. The water remained clean enough to see the bottom of the tank after a full day of operation through the oxidation of contaminants.