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Monitoring and toxicity of sulfonated derivatives of benzene and naphthalene in municipal sewage treatment plants

AutorAlonso, M. C.; Tirapu, Ll.; Ginebreda Martí, Antoni; Barceló, Damià
Palabras claveAromatic sulfonates
Water analysis
Sewage samples
Fecha de publicación17-may-2005
CitaciónEnvironmental Pollution 137(2): 253-262 (2005)
ResumenMonitoring benzenesulfonates (BS) and naphthalenesulfonates (NS) took place in five municipal sewage treatment plants (STP). A previously optimized method based on solid phase extraction with polymeric cartridges followed by ion-pair liquid chromatography-electrospray-mass spectrometry (SPE-IPC-ESI-MS) was used. This work confirmed the little or no effect of primary settlement on total organic carbon (TOC) and monosulfonated compounds removal, whereas the main reduction is obtained at the biological stage. However, the most polar compounds, such as naphthalenedisulfonates (NDS), were not effectively removed using the biological treatment. An aromatic sulfonated compound is suggested to be used as a tracer of the origin of industrial pollutants discharged into STPs. A bioluminescence inhibition test, Microtox® assay, allowed toxicity determination of the most relevant aromatic sulfonated compounds detected and toxicity comparison between primary and secondary effluents.
Sulphonated organic pollutants enter sewage treatment plants and although they partly discharged into the river waters no toxic effects are observed when biological treatment is used.
Descripción10 pages, 4 figures.-- PMID: 15896893 [PubMed].-- Printed version published Sep 2005.
Versión del editorhttp://dx.doi.org/10.1016/j.envpol.2005.02.007
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