<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Polycyclic aromatic hydrocarbons (PAHs) are a common part of the environment where they come from burning fossil fuels (through an incomplete combustion process). From a toxicological point of view, PAHs are considered to be carcinogens with a mutagenic and teratogenic effect. On the other hand, ferrates are generally believed to be the ideal chemical agent for water treatment due to their strong oxidation potential. Herein, the efficiency of degradation of PAHs (with the special emphasis on B[a]P) by ferrates under laboratory conditions was studied. The formation of degradation products was also considered. For this, two types of ferrates were used and both of them efficiently degraded B[a]P. When comparing ferrates that were bought from a Czech and USA company, no significant changes in terms of B[a]P degradability were observed. It was determined that the degradation efficiency of PAHs by ferrates was dependent on their molecular weight. Two and three cyclic PAHs have been completely degraded within 30 minutes, whereas five (and more) cyclic PAHs, only partially. The results obtained with ferrates were compared to the ones obtained with a classical oxidizing agent - KMnO<sub>4</sub>. In a qualitative test to detect degradation products of PAHs, two were identified, namely fluoren-9-one derived from fluorene and acentaphthylene, formed from acenaphthene.</p></abstract>

Polycyclic aromatic hydrocarbons (PAHs) are a common part of the environment where they come from burning fossil fuels (through an incomplete combustion process). From a toxicological point of view, PAHs are considered to be carcinogens with a mutagenic and teratogenic effect. On the other hand, ferrates are generally believed to be the ideal chemical agent for water treatment due to their strong oxidation potential. Herein, the efficiency of degradation of PAHs (with the special emphasis on B[a]P) by ferrates under laboratory conditions was studied. The formation of degradation products was also considered. For this, two types of ferrates were used and both of them efficiently degraded B[a]P. When comparing ferrates that were bought from a Czech and USA company, no significant changes in terms of B[a]P degradability were observed. It was determined that the degradation efficiency of PAHs by ferrates was dependent on their molecular weight. Two and three cyclic PAHs have been completely degraded within 30 minutes, whereas five (and more) cyclic PAHs, only partially. The results obtained with ferrates were compared to the ones obtained with a classical oxidizing agent - KMnO4. In a qualitative test to detect degradation products of PAHs, two were identified, namely fluoren-9-one derived from fluorene and acentaphthylene, formed from acenaphthene.

Chemical Oxidation of Polycyclic Aromatic Hydrocarbons in Water By Ferrates(VI)

Laboratory of Instrumental Chemical Analysis

Ecological Chemistry and Engineering S

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Chemical Oxidation of Polycyclic Aromatic Hydrocarbons in Water By Ferrates(VI)"}

Polycyclic aromatic hydrocarbons (PAHs) are a common part of the environment where they come from burning fossil fuels (through an incomplete combustion...

Chemical Oxidation of Polycyclic Aromatic Hydrocarbons in Water By Ferrates(VI)

Published Online: Jan 29, 2021

Page range: 529 - 542

DOI: https://doi.org/10.2478/eces-2020-0032

Keywords
polycyclic aromatic hydrocarbons, benzo[a]pyrene, ferrate, degradability, spiked water, oxidizing agent

© 2020 Barbora Antošová et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Chemical Oxidation of Polycyclic Aromatic Hydrocarbons in Water By Ferrates(VI)

Published Online: Jan 29, 2021

Page range: 529 - 542

DOI: https://doi.org/10.2478/eces-2020-0032

Keywordspolycyclic aromatic hydrocarbons, benzo[a]pyrene, ferrate, degradability, spiked water, oxidizing agent

© 2020 Barbora Antošová et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
polycyclic aromatic hydrocarbons, benzo[a]pyrene, ferrate, degradability, spiked water, oxidizing agent