Effect of UV-degraded microplastics on Dissolved Air Flotation (DAF) removal Sovannary Pit, Jirawat Sangpreedeekorn, Theerayut Phengsaart and Dao Janjaroen E3S Web Conf., 612 (2025) 03001 Published online: 31 January 2025 DOI: 10.1051/e3sconf/202561203001