Practical insights into ultrasound-assisted heterogeneous Fenton membrane reactors for water treatment

Cavitation damage to membranes is a major barrier for developing an ultrasound (US)-assisted membrane water treatment process. In this study, US was integrated heterogeneous Fenton reactor the of pharmaceutical-containing with aims i) fouling control, ii) enhancement oxidation. order prevent damages due cavitation, stable and violent cavitation regions were identified by quantification analysis activity axial along transducer via hydrophone measurements. Results showed activities occur in both on, while materials only observed when placed region. On one hand, cracking physical erosion surface on samples exposed cavitation. other no such occurred regions, kept their mechanical, chemical morphological properties, confirming that controlled placing Based these results, Sono-Fenton designed scalable hollow-fibre module Within reactor, experiments confirmed oxidation organics enhanced thanks assistance novel reactor. However, study also accelerated ageing zeolite-catalysts erosion, leading more severe fouling. Overall, paper introduces method control discusses issues US-assisted systems practical insights.