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Separation Science and Technology Volume 52, 2017 - Issue 5
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Flotation

Effective factors and kinetics study of zinc ion removal from synthetic wastewater by ion flotation

Fatemeh Sadat HoseinianDepartment of Mining & Metallurgical Engineering, Amirkabir University of Technology, Tehran, Iran
,
Mehdi IrannajadDepartment of Mining & Metallurgical Engineering, Amirkabir University of Technology, Tehran, IranCorrespondence[email protected]
&
Mehdi SafariCentre for Minerals Research, Department of Chemical Engineering, University of Cape Town, Private Bag Rondebosch, Cape Town, South Africa
Pages 892-902 | Received 10 May 2016, Accepted 28 Nov 2016, Published online: 11 Jan 2017
 
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ABSTRACT

Zn(II) ion removal from synthetic wastewater was investigated using ion flotation in Hallimond tube followed by mechanical cell. The flotation reaction rate curve on the removal of Zn(II) ions in the separation process was divided into two stages, with n ≈ 1 in the first stage and with n ≈ 0 in the second stage. The kinetics of flotation for Zn(II) ion removal was 25 times faster than the kinetics for water removal. The removal kinetics has an inverse relation with the ionic strength and a direct relation with activity coefficients.

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Related Research Data

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