Tezislər / Theses

THE 3
rd
 INTERNATIONAL SCIENTIFIC CONFERENCES OF STUDENTS AND YOUNG RESEARCHERS 
dedicated to the 99
th
anniversary of the National Leader of Azerbaijan Heydar Aliyev
336
often linked with their comparatively high oxidation potential, as well as rapid 
oxidative reaction kinetics [Stasinakis A. S., 2008]. 
Fenton technique is a common and powerful form of AOP, where an iron 
salt is supplemented into the solution, which dissociates into Fe
2+ 
cations, 
initiation in-situ generation cycle of HO• radicals from hydrogen peroxide, 
which is added to the solution to initialize the reactions. Generated radical is 
a potent oxidizing agent which can sufficiently decompose contaminants 
including persistent substances including phenolic ones itself. The reaction 
sequence may be divided into two sections, first being the generation of HO• 
radicals and the latter being degradation of phenol, going through several 
intermediate forms before getting completely mineralized [Abouseoud M. et 
al, 2017]: 
Fe
+ H O

Fe + HO • + OH
Fe
+ H O

Fe + HOO • + H
Figure 13.
 Phenol degradatin route through advanced oxidation [
Abouseoud M. et al, 2017
] 
The preferable salt compound for the Fenton-like reaction is a 
composition of transitionary group metals (iron(II) in the Fenton process) and 
a strong acid group. The conducted laboratory experiment utilized FeCl
2
, as 
well as HCl was employed to increase the acidic properties of the medium 
which boosts the treatment efficiency. On average, small-scale reaction 
tends to finalize in 10-15 minutes, after which it is quenched with NaOH 
solution to neutralize the pH value of the medium, leading to precipitation of 
the ferrous solids to be later filtered out. 

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