Abstract
This paper presents the results of a study of the photocatalytic activity of iron-containing composites based on natural peat and zeolite under external influences: Ultraviolet irradiation (UVI) and UVI + H2O2. It is shown that the optimal method for the photocatalytic destruction of pollutants (oxalic acid and phenol) with composites is to introduce hydrogen peroxide in the system. The composites studied are sources of iron ions in the Ruff-Fenton system; they provide the generation of •OH radicals, which have a high reactivity in the oxidative degradation reactions of organic substances and can be recommended for reuse to purify water drains.
Highlights
In view of the growing anthropogenic influence on the ecosystem, close attention has recently been paid to the problems of monitoring both pollutants of natural objects and their regeneration.The pollution of hydrologic systems with wastewaters (WW) represents a special hazard since the processes of self-purification are slower than they are in air, and the sources of pollution of the aqueous medium are more diverse than they are for other natural objects
There are a number of techniques related to advanced oxidation processes (AOPs) that allow for the decomposition of soluble organic substances (SOS) to CO2 and H2 O [1]
It was assumed that when oxidants are exposed to an iron-containing composite, the photoreduction of Fe3+ to Fe2+ and the generation of OH radicals would take place, determining the effectiveness of the destruction of the organic pollutants studied
Summary
In view of the growing anthropogenic influence on the ecosystem, close attention has recently been paid to the problems of monitoring both pollutants of natural objects and their regeneration.The pollution of hydrologic systems with wastewaters (WW) represents a special hazard since the processes of self-purification are slower than they are in air, and the sources of pollution of the aqueous medium are more diverse than they are for other natural objects. In a homogeneous catalysis process, during the disproportionation of hydrogen peroxide by aqua ions, Fe3+ free radicals OH and HO2 are generated, which have high reactivity in oxidation reactions
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
