Removal of polychlorinated biphenyl congeners in mixture Delor 103 from wastewater by ozonation vs/and biological method
| Autor: | Lenka Sumegová, Ján Derco, Katarína Lászlová, Hana Dudášová, Katarína Dercová |
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| Rok vydání: | 2016 |
| Předmět: |
Environmental Engineering
Health Toxicology and Mutagenesis 0211 other engineering and technologies 02 engineering and technology 010501 environmental sciences Wastewater 01 natural sciences Water Purification chemistry.chemical_compound Ozone Environmental Chemistry Waste Management and Disposal 0105 earth and related environmental sciences 021110 strategic defence & security studies biology Chemistry Polychlorinated biphenyl Sediment Achromobacter xylosoxidans Biodegradation Contamination biology.organism_classification Pollution Polychlorinated Biphenyls Biodegradation Environmental Environmental chemistry Achromobacter denitrificans Fish Water Pollutants Chemical |
| Zdroj: | Journal of hazardous materials. 321 |
| ISSN: | 1873-3336 |
| Popis: | Polychlorinated biphenyls (PCBs) produced in Slovakia as a commercial mixture Delor 103 cause the main contamination of sediment, water and fish in the eastern part of Slovakia. Delor 103 is a mixture of 40% PCB congeners, nine of them: PCB 8 (2,4′-dichlorobiphenyl), PCB 28 (2,4,4′-trichlorobiphenyl), PCB 52 (2,2′,5,5′-tetrachlorobiphenyl), PCB 101 (2,2′,4,5,5′-pentachlorobiphenyl), PCB 118 (2,3′,4,4′,5-pentachlorobiphenyl), PCB 138 (2,2′,3,4,4′,5′-hexachlorobiphenyl), PCB 153 (2,2′,4,4′,5,5′-hexachlorobiphenyl), PCB 180 (2,2′,3,4,4′,5,5′-heptachlorobiphenyl), and PCB 203 (2,2′,3,4,4′,5,5′,6-octachlorobiphenyl), were monitored for their removal by ozonation and biodegradation using Achromobacter xylosoxidans. Ozonation improved the removal of PCB 52, 118, 153, 138, 180, and 203 using biological method with A. xylosoxidans. Degradation of 55% of the total amount of nine selected PCB congeners was achieved by the biological method with A. xylosoxidans, while 86% of the total amount of the nine selected PCB congeners were removed by the ozonation method; using a combination of biological and chemical methods, ozonation and A. xylosoxidans, showed a 94% removal efficiency of the selected PCB congeners present in mixture Delor 103. |
| Databáze: | OpenAIRE |
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