1. Gas holdup and volumetric mass transfer coefficient in bubble columns;Akita;Ind. Engng Chem. Pro. Des. Dev.,1973
2. A model study of ozone-sparged vessels for the removal of organics from water and wastewater Thesis presented to the University of Illinois at Urbana-Champaign in partial fulfilment of the requirements for the degree of Doctor of Philosophy;Chang,1978
3. Improved performance of activated carbon by pre-ozonation;Guirguis;J. Wat. Pollut. Control Fed.,1978
4. Pilot plant studies of tertiary wastewater treatment with ozone;Kirk,1972