Kinetics of Ferrum(II) Ions Oxidation by Air Oxygen in Water in Horizontal Absorber with Bucket-like Dispersers

https://doi.org/10.23939/chcht09.04.503
Received: December 12, 2014
Revised: February 23, 2015
Accepted: July 15, 2015
Authors: 
Victor Yavorskiy, Yaroslaw Kalymon and Olga Rubai

Lviv Polytechnic National University 12, St. Bandera str., 79013 Lviv, Ukraine; ffroluch@ukr.net

The oxidation rate of ferrum(II) to ferrum(III) by air oxygen in water has been investigated in the horizontal absorber with bucket-like dispersers. The reaction order relative to Fe2+ and –OH ions has been determined based on established dependencies of ferrum(II) ions concentration on dispersion time at their various initial concentrations and medium pH. It has been shown for the first time that at pH = 5.5–6.2 in water during oxidation of ferrum(II) ions an autocatalysis occurs due to the formed ferrum(III) ions.

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