Abstract
An analytical method for the simultaneous determination of 16 PAHs (EPA Priority Pollutants) by HPLC with Fluorescence Detection has been optimized and applied to waste water and sludge samples from a municipal wastewater treatment plant in Thessaloniki/Greece. Sample preparation included liquid/liquid and Soxhlet extraction with cyclohexane for the waste water and the sludge, respectively, and clean up on silica columns. Sample preparation efficiency was shown to be sufficient, attaining on overall mean recovery of all PAHs but naphtalene of about 80% in aqueous samples and 75% in sludge. The 16 PAHs were determined at various steps of the waste water treatment process, such as at the inlet, primary sedimentation after flocculation, secondary sedimentation after biological treatment, effluent chlorina‐tion, supernatant sludge return and sludge dewatering.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
