9Rubio J, Souza M L,Smith R W. Overview of flotation as a wastewater treatment technique [J]. Minerals Engineering,2002,15 (3) : 139 - 155.
10Rubio J,Carissimi E,Rosa J J. Flotation in water and wastewatertreatment and reuse:recent trends in Brazil [J]. International Journal of Environment and Pollution, 2007,30 (2) : 193-207.
