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Pregled bibliografske jedinice broj: 212304

Časopis

Autori: Terzić, Senka; Matošić, Marin; Ahel, Marijan; Mijatović, Ivan
Naslov: Elimination of Aromatic Surfactants from Municipal Wastewaters - Comparison of Conventional Activated Sludge Treatment and Membrane Biological Reactor
Izvornik: Water science and technology (0273-1223) 51 (2005), 8; 447-453
Vrsta rada: članak
Ključne riječi: linear alkylbenzene sulphonates; LAS; membrane biological reactor; surfactants; nonylphenol polyethoxylates; wastewater treatment
Sažetak:
Behaviour of anionic surfactants of linear alkylbenzene sulphonates (LAS) type and non-ionic surfactants of nonylphenol polyethoxylate (NPnEO) type were studied in the conventional mechanical/biological sewage treatment plant (STP) as well as using a membrane biological reactor (MBR). LAS and NPnEO were determined using high performance liquid chromatography (HPLC) equipped with spectrofluorimetric detection. Liquid chromatography/tandem mass spectrometry (LC/MS/MS) was used for identification and quantification of stable metabolites, including nonylphenol (NP) nonylphenol monoethoxylate (NP1EO), nonylphenol diethoxylate (NP2EO) and nonylphenoxy carboxylic acids (NPnEC). The study showed that aromatic surfactants belong to the most prominent constituents in the examined municipal wastewaters with typical LAS and NPnEO concentrations of 2-10 mg/L and 0.1-0.5 mg/L, respectively. The removal of aromatic surfactants in conventional STP showed well-known features reported in the literature, including an efficient microbial transformation of the parent molecules and formation of stable metabolic products. The elimination efficiency of aromatic surfactants using the MBR unit was higher than that in the conventional STP, while the composition of recalcitrant nonylphenolic residues in the effluent seems to be ecotoxicologically more favourable due to the lower contributions of the lipophylic metabolites.
Projekt / tema: 0125016, 0098120
Izvorni jezik: ENG
Rad je indeksiran u
bazama podataka:
Current Contents Connect (CCC)
MEDLINE
Scopus
SCI-EXP, SSCI i/ili A&HCI
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Kategorija: Znanstveni
Znanstvena područja:
Geologija,Kemija,Biotehnologija
URL cjelovitog teksta:
Google Scholar: Elimination of Aromatic Surfactants from Municipal Wastewaters - Comparison of Conventional Activated Sludge Treatment and Membrane Biological Reactor



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