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Review
. 2021 Feb 6;26(4):870.
doi: 10.3390/molecules26040870.

Recent Achievements in Dyes Removal Focused on Advanced Oxidation Processes Integrated with Biological Methods

Stanisław Ledakowicz  1 , Katarzyna Paździor  1
Affiliations
Review

Recent Achievements in Dyes Removal Focused on Advanced Oxidation Processes Integrated with Biological Methods

Stanisław Ledakowicz et al. Molecules. .

Abstract

In the last 3 years alone, over 10,000 publications have appeared on the topic of dye removal, including over 300 reviews. Thus, the topic is very relevant, although there are few articles on the practical applications on an industrial scale of the results obtained in research laboratories. Therefore, in this review, we focus on advanced oxidation methods integrated with biological methods, widely recognized as highly efficient treatments for recalcitrant wastewater, that have the best chance of industrial application. It is extremely important to know all the phenomena and mechanisms that occur during the process of removing dyestuffs and the products of their degradation from wastewater to prevent their penetration into drinking water sources. Therefore, particular attention is paid to understanding the mechanisms of both chemical and biological degradation of dyes, and the kinetics of these processes, which are important from a design point of view, as well as the performance and implementation of these operations on a larger scale.

Keywords: AOPs; biological processes; decolorization; dyes and pigments; textile wastewater.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
The most common pollutants generated in wet processes [14,21,26].
Figure 2
Figure 2
Scheme of azo dyes degradation in two step anaerobic-aerobic treatment.
Figure 3
Figure 3
The block diagram of the technology proposed within the ICBTOS project.
See this image and copyright information in PMC

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