TY - JOUR N2 - The paper presents the results of studies on the changes in the PAHs concentration during pre-filtration and ultrafiltration (UF) processes. In the study, biologically treated wastewater (after denitrification and nitrification processes), discharged from the biological treatment plant and used in coke plant, was used. A gas chromatography-mass spectrometry (GC-MS) was used in order to qualify and quantify the PAHs. Sixteen PAHs listed by EPA were determined. The wastewater samples were collected three fold and initially characterized for the concentration of nitrate nitrogen, ammonium nitrogen, COD, TOC and pH. In the first step, wastewater was filtrated on the sand bed. Total concentration of 16 PAHs in the treated wastewater before initial filtration was in the range of 44.8‒53.5 mg/L. During the process the decrease in the concentration of the most studied hydrocarbons was observed. Concentration of PAHs after initial filtration ranged from 21.9 to 38.3 μg/L. After the initial filtration process the wastewater flew to the ultrafiltration module and then was separated on the membrane (type ZW-10). The total concentration of 16 PAHs in the process of ultrafiltration was in the range of 8.9‒19.3 mg/L. The efficiency of removal of PAHs from coke wastewater in the process of ultrafiltration equaled 66.6%. Taking into account the initial filtration, the total degree of removal of PAHs reached 85%. The obtained results indicate the possibility of using the ultrafiltration process with the initial filtration as additional process in the coke wastewater treatment. L1 - http://www.czasopisma.pan.pl/Content/85775/PDF/10265-Volume38-Issue4-paper_05.pdf L2 - http://www.czasopisma.pan.pl/Content/85775 PY - 2012 IS - No 4 DO - 10.2478/v10265-012-0040-6 KW - Coke wastewater KW - membrane techniques KW - ultrafiltration KW - PAH A1 - Smol, Marzena A1 - Włodarczyk-Makuła, Maria PB - Polish Academy of Sciences VL - vol. 38 DA - 2012 T1 - Effectiveness in the Removal of Polycyclic Aromatic Hydrocarbons From Industrial Wastewater by Ultrafiltration Technique UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/85775 T2 - Archives of Environmental Protection ER -