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Distribution of polycyclic aromatic hydrocarbons in coke plant wastewater
Authors Burmistrz Piotr Burmistrz Michał Journal Water Science and Technology Year Vol. Number Pages 2013 68 11 2414-2420 Impact Factor 1.212 DOI Abstract in the main language of the article Keywords in the main language ścieki koksownicze współczynnik podziału wielopierścieniowe węglowodory aromatyczne (WWA) Title in the additional language Abstract in the additional language The subject of examinations presented in this paper is the distribution of polycyclic aromatic hydrocarbons (PAHs) between solid and liquid phases in samples of raw wastewater and wastewater after treatment. The content of 16 PAHs according to the US EPA was determined in the samples of coke plant wastewater from the Zdzieszowice Coke Plant, Poland. The samples contained raw wastewater, wastewater after physico-chemical treatment as well as after biological treatment. The ?PHA16 content varied between 255.050 ?g L(?1) and 311.907 ?g L(?1) in raw wastewater and between 0.940 and 4.465 ?g L(?1) in wastewater after full treatment. Investigation of the distribution of PAHs showed that 71-84% of these compounds is adsorbed on the surface of suspended solids and 16-29% is dissolved in water. Distribution of individual PAHs and ?PHA16 between solid phase and liquid phase was described with the use of statistically significant, linear equations. The calculated values of the partitioning coefficient Kp changed from 0.99 to 7.90 for naphthalene in samples containing mineral-organic suspension and acenaphthylene in samples with biological activated sludge, respectively. Keywords in the additional language coke plant wastewater partitioning coefficient polycyclic aromatic hydrocarbons (PAHs) | 
