**4. Conclusions**

The aim of the present study was the treatment of simulated and industrial tannery wastewater by using a vibratory shear-enhanced process (VSEP) system. A variety of parameters affecting the rejection efficiency of pollutants were studied, such as the specific membrane separation process (MF, UF, RO), the different membrane type for each case, and the applied vibration amplitude. The main conclusions of the study are the following:


**Author Contributions:** Conceptualization, A.I.Z. and E.N.P.; methodology, A.N. and A.I.Z.; validation, A.I.Z., E.N.P. and A.N.; formal analysis, E.N.P. and A.N.; investigation, A.I.Z., E.N.P. and A.N.; data curation, A.N.; writing—original draft preparation, E.N.P. and A.N.; writing—review and editing, A.I.Z. and E.N.P.; visualization, E.N.P.; supervision, A.I.Z.

**Funding:** This research received no external funding.

**Acknowledgments:** Thanks are due to the Central Tannery Wastewaters Treatment facility in the industrial area at Sindos Thessaloniki (Greece) and especially to N. Apostolidis, P. Karamanolis (Chemical Engineers), D. Liantas and P. Sidiropoulos (technicians) for their valuable help.

**Conflicts of Interest:** The authors declare no conflict of interest.
