An example of innovation from the waste management industry: Deinking flotation cells

DAF–dissolved air flotation: Potential applications in the mining and mineral processing industry

“…More, many articles (Bahr, 1985;Harbort et al, 1994;Finch, 1995;Finch and Hardie, 1999;Feris et al, 2001;Rubio et al, 2002a,b;Rosa and Rubio, 2005;Capponi et al, 2006) reviewed fundamentals, techniques and general features of flotation (usually preceded by flocculation) for environmental applications, namely, flocculation-flotation, (FF process) induced air flotation, dissolved air flotation, nozzle flotation, column flotation, centrifugal flotation and Jet flotation (Jameson type cell, Jameson, 1988).…”

“…Due to the efficient reagents and separation schemes now available, flocculation and rapid flotation have great potential as unitary or ancillary processes in many areas (Voronin and Dibrov, 1999;Finch and Hardie, 1999;Rubio et al, 2001Rubio et al, , 2002aRubio et al, ,b, 2003Capponi et al, 2006).…”

Recovery of Calcium Carbonate from Wastewater Treatment Sludge Using a Flotation Technique

“…Flotation had its beginning in mineral processing and as such it has been used for a long time in solid to solid separation using stable froths to selectively separate different minerals from each other [10]. It is believed that the cross exchange of flotation experience in the mineral flotation and water effluent treatment should lead to new and improved procedures for industrial waste treatment [11].…”

Roles of surfactant and fibres on fibre transport in a small flotation deinking column

“…Nevertheless, the comprehension of the effect of fibre flocculation on bubble motion, fibre Flotation column is the dominant flotation technology in the minerals industry [17,18], and, when used for recovered papers deinking, it provides higher ink removal and yield than conventional tank cells [19][20][21][22][23]. However, this technology has a limited application in the paper industry and, at present, there are only three documented cases of flotation column use in: (i) an old corrugated container recycling mill, to remove contaminants, i.e.…”