Wang, Lawrence K. and Wang, Mu-Hao Sung (2022). Titanium dioxide recovery, filler retention and white water treatment using flotation and membrane filtration.. In: “Evolutionary Progress in Science, Technology, Engineering, Arts, and Mathematics (STEAM)”, Wang, Lawrence K. and Tsao, Hung-ping (editors). Volume 4, Number 7, July 2022; pp.72. Lenox Institute Press, MA, USA. STEAM-VOL4-NUM7-JULY2022. ISBN 978-0-9890870-3-2. …………ABSTRACT: Historical and recent developments by research scientists around the world are reviewed and introduced. Topics reviewed include: the characteristics and application of titanium dioxide and various potential fillers; filler retention; techniques and chemicals for enhancing filler retention; and various Saveall processes (such as DAF, DAFF, DAF-DAFF, Spray Filter, Foamer, ozone-oxygen flotation, VSEP, etc.) for white water treatment and resources recovery. This publication is one of several memoirs written by and for the Lenox Institute of Water Technology (LIWT) in memory of Lenox President/Professor Milos Krofta, and Lenox Professors William A. Selke, Donald B. Aulenbach and Nazih K. Shammas. …………KEYWORDS: Memoir, Milos Krofta, Lenox Professors, Lenox Institute of Water Technology (LIWT), Krofta Engineering Corporation (KEC), Pulp, Paper, Titanium Dioxide, Filler, Filler Retention, White Water, Effluent Treatment, Water Reuse, Secondary Fiber, Saveall Process, Dissolved Air Flotation, DAF, Dissolved Air Flotation & Filtration, DAFF, Two-Stage DAF-DAFF, Vibratory Shear Enhanced Process, VSEP, Membrane Filtration.