In this study, hybrid ultrafiltration which involves adsorption onto activated carbon and/or coagulation was tested for the removal of ibuprofen, caffeine and diclofenac from municipal wastewater treatment plant effluent (c0 = 2–3 µg/L). Ultrafiltration in combination with powdered dose 5 mg/L separately or coagulants (FeCl3, 4 mg Fe (III)/L and, natural coagulant isolated bean seeds, 33 µL/L)....

Fire whirls cause an increase in fire damage. This study clarified the unsteady behavior of whirls, considering that instantaneous changes temperature and flame shape can affect damage to surrounding area. Numerical simulations a lab-scale simulates whirl were performed investigate gas velocity fields under various fuel inflow velocities. The flow field was obtained by solving continuity equati...