A process of treating wastewater comprising the steps of inserting an ozonator into a source of wastewater to degrade contaminants in said wastewater; characterized by introducing said wastewater containing ozone gas into a UV reactor to completely…

A method to detect and characterize at least one defect in a specimen using an apparatus comprises steps of: generate a plurality of wave signals on the specimen , by using an impact source , for the wave signals to propagate within the specimen;…