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PT04 Endocrine-Disrupting Chemicals in Wastewater Treatment Effluents
(PT054) Synthetic musks in Finnish sewage treatment process and semipermeable membrane devices for monitoring the recipient river.
Jääskeläinen, H.1, Rantalainen, A.-L.1, 1 University of Helsinki, Lahti, Finland, Finland
ABSTRACT- Synthetic musks are widely used as fragrance ingredients in detergents and other cleaning and personal care products. With the continuous usage of the fragrance materials the levels of synthetic musks have increased in the sewage treatment plants and via effluents in the aquatic environment. Because of their hydrophobic and polycyclic nature synthetic musks resemble estrogens and furthermore may induce endocrine-disrupting phenomena. The aim of this study was to investigate the levels of synthetic musk compounds in Finnish sewage treatment process and in the environment using the recipient river, the River Porvoonjoki, as a sampling site. The uptake rates of semipermeable membrane devices (SPMDs) for synthetic musk compounds were also studied in a laboratory and those values were applied for monitoring synthetic musks in the river. Wastewater, sludge, and effluent samples for chemical analysis were collected from two wastewater treatment plants located in Lahti City area. The water and sediment samples from the river were taken upstream and downstream of the discharge point. The SPMDs, water and sediment samples as well as sewage sludge faced silica column cleanup and fractionation after dialysis or extraction. The final analysis was performed by GC-LRMS.
Key words: sewage treatment process, synthetic musks, semipermeable membrane devices, recipient river
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