Agnieszka Turek, Maria Włodarczyk-Makuła, Anna Nowacka
The aim of this study was to determine the effectiveness of the removal of selected 7 PAHs (naphthylene, acenaphthene, fluorene, phenanthrene, pyrene, benzo (a) anthracene, chrysene) from coke wastewater. Hydrogen dioxide is used as the oxidant at doses of 50, 100, 300, 600, 900, 1000, 2000 mg/L. PAH removal efficiency was based on the initial concentration in the wastewater coke. Examined changes in general indicators of organic pollutants such as COD, TOC in the process. TOC conversion ratio were determined at COD. amounted to 6.11. On the basis of the parameters CODobl and TOC the optimal dose for the oxidation process was from 600 to 1000 mg/L. Quantitative and qualitative analysis of PAH was performed using a gas chromatograph mass spectrometer. The optimal dose for 7 PAHs was 300 mg/L. PAH removal from wastewater 73% for the 3-ring compounds and 67% for the 4-ring hydrocarbons.
ścieki koksownicze, węglowodory aromatyczne, proces utleniania
Removal of Organic Substances and Selected Aromatic Hydrocarbons from Coke Oven Wastewater
coke oven wastewater, aromatic hydrocarbons, oxidation process
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