Study of the Efficiency of the Combination of Hydrodynamic Cavitation and Hydrogen Peroxide in Water Treatment

• Grant number: 24/23388-9
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: September 01, 2025
• End date: July 31, 2026
• Field of knowledge: Engineering - Sanitary Engineering - Water Supply and Wastewater Treatment
• Principal Investigator: Marcelo Antunes Nolasco
• Grantee: Isabella Beatriz Guiducci do Nascimento
• Host Institution: Escola de Artes, Ciências e Humanidades (EACH). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

This study aims to evaluate the effectiveness of processes and technologies in the treatment of polluted water. The proposed model combines coagulation/flocculation followed by the application of hydrodynamic cavitation combined with hydrogen peroxide. The analysis focuses on the removal of organic and inorganic compounds, based on physicochemical parameters, including chemical oxygen demand (COD), turbidity, color, pH, and UV-Vis spectrophotometry. The relevance of this study is grounded in current issues, such as the climate emergency and the growing scarcity of natural resources, especially water. Increasingly, it becomes essential to treat waste and reuse previously utilized materials to achieve process sustainability and promote continuous improvements. Thus, the study is directed toward alternatives capable of addressing this complex problem, with the aim of identifying the most efficient and sustainable treatment methods.