ABSTRACT: Ion flotation is the term used to describe a process in which there is an initally homogeneous solution which becomes heterogeneous after the addition of an oppositely charged surfactant due to the reaction between the surfactant and specific ion(s); thus, insoluble complexes are formed. These insoluble complexes will then attached to the bubbles passing through the solution and thus leave in the foam phase. The performance of the continuous ion flotation process for the removal of haft lignin from water was investigated intensively using liquid flow rates, gas flow rates, feed locations and solution height as operational variables. The interrelationships among these physical parameters were studied and discussed. A dimensionless operational chart was established for process control. Results demonstrate that ion flotation is an effective process for removing lignin from water, provided that a quaternary ammonium salt, such as cetyldimethylbenzyl‐ammonium chloride or the like, is used as a collector. At optimum operational conditions, higher than 0.95 fractional removal of lignin can be achieved.

Dimensionless quantity

Separation process

Ammonium chloride

10.1111/j.1752-1688.1974.tb00567.x

Cite

Citations (13)

Continuous Bubble Fractionation: Part II, Effects of Bubble Size and Gas Rate

Environmental Letters (1973)

Lawrence Kong-Pu Wang Marvin L. Granstrom E.L. Bourodimos Bong T. Kown

Abstract Theoretical equations developed in Part I of this paper1 have been evaluated experimentally using bubble size and gas flow rate as variables. Variations of bubble size and gas flow rate, which will affect the column performance of either batch or continuous bubble fractionation system, are predicted by the developed theory. Based on theoretical development and experimental verifications, several approaches for the improvement of the bubble fractionation system are suggested.

Foam fractionation

10.1080/00139307309436600

Cite

Citations (5)

A linear program model for point-nonpoint source control decisions: Theoretical development

Ecological Modelling (1983)

Tzay‐Rong Jenq Christopher G. Uchrin Marvin L. Granstrom Shing‐Fu Hsueh

10.1016/0304-3800(83)90042-x

Cite

Citations (8)

A Phosphorous Management Model for Lake Carnegie (NJ)

Developments in environmental modelling (1983)

Tzay-Rong Jenq Christopher G. Uchrin Marvin L. Granstrom Shing-Fu Hsueh

10.1016/b978-0-444-42179-1.50068-7

Cite

Citations (0)