|
Abdulgalim B. Isaev, Asiyat G. Magomedova
Advanced
oxidation processes based emerging technologies for dye wastewater treatment
Abstract
Abstract. Currently, the issue of minimizing the environmental impact of
anthropogenic activities and improving the quality of water resources is
topical. The paper presents an overview of research on advanced oxidation
processes and their use for the removal of organic dyes from wastewater. Among
wastewater treatment technologies based on advanced oxidation processes can be
divided: oxidation of organic dyes with hydrogen peroxide in the presence of
iron (II) ions when irradiated UV light (photo-Fenton), exposure of wastewater
to ultrasound in the presence of iron (II) ions and hydrogen peroxide
(sono-Fenton), the photoelectrochemical generation of hydrogen peroxide in the
presence of iron (II) ions and UV light irradiation (photoelectro-Fenton), as
well as in the presence of heterogeneous iron-containing compounds and hydrogen
peroxide (Fenton-like process). These advanced oxidation processes are used for
the removal of organic dyes which are highly chemically stable because the
other treatment methods, such as biological oxidation is inefficient.
Key words: advanced oxidation processes, dyes, wastewater, treatment
Copyright (C) Chemistry Dept., Moscow State University, 2002
|
|
