REMOVAL OF SELECTED CONGENERS OF POLYCYCLIC AROMATIC HYDROCARBONS FROM THE BOTTOM SEDIMENTS USING CHEMICAL OXIDATION

• Main Authors: Sabina Książek, Małgorzata Kida, Piotr Koszelnik
• Format: Article
• Language: Polish
• Published: Polish Society of Ecological Engineering (PTIE) 2016-06-01
• Series: Inżynieria Ekologiczna
• Subjects: PAHs; bottom sediments; chemical oxidation
• Online Access: http://www.journalssystem.com/ie/USUWANIE-WYBRANYCH-KONGENEROW-WIELOPIERSCIENIOWYCH-WEGLOWODOROW-AROMATYCZNYCH-Z-OSADOW-DENNYCH-ZA-POMOCA-UTLENIANIA-CHEMICZNEGO,63261,0,2.html

Bottom sediments are the part of the aquatic ecosystem, which accumulates most of pollution emitted into environment and flowing into surface waters. This concerns of nutrients, heavy metals and Persistent Organic Pollutants, which include, among others, polycyclic aromatic hydrocarbons (PAHs). PAHs are toxic, carcinogenic mutagenic and teratogenic compounds. The aim of this study was to evaluate the usefulness of chemical oxidation to remove selected PAH contained in bottom sediments. Oxidation of the impurities were carried out using 30% solution of hydrogen peroxide and with the addition of H₂O₂ with the catalyst FeSO₄x7H₂O (the Fenton’s method). The efficiency of oxidation was evaluated on the basis of changes in the content of tested impurities, which was determined by gas chromatography coupled with the mass spectrometer (GC-MS) after extraction of analytes from bottom sediments. Preliminary studies have shown the efficacy of the use of H₂O₂ and the Fenton’s method to remove of selected PAHs.