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Elimination of Aromatic Surfactants from Municipal Wastewaters - Comparison of Conventional Activated Sludge Treatment and Membrane Biological Reactor


Terzić, Senka; Matošić, Marin; Ahel, Marijan; Mijatović, Ivan
Elimination of Aromatic Surfactants from Municipal Wastewaters - Comparison of Conventional Activated Sludge Treatment and Membrane Biological Reactor // Water science and technology, 51 (2005), 8; 447-453 (međunarodna recenzija, članak, znanstveni)


Naslov
Elimination of Aromatic Surfactants from Municipal Wastewaters - Comparison of Conventional Activated Sludge Treatment and Membrane Biological Reactor

Autori
Terzić, Senka ; Matošić, Marin ; Ahel, Marijan ; Mijatović, Ivan

Izvornik
Water science and technology (0273-1223) 51 (2005), 8; 447-453

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

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.

Izvorni jezik
Engleski

Znanstvena područja
Geologija, Kemija, Biotehnologija



POVEZANOST RADA


Projekt / tema
0098120
0125016

Ustanove
Prehrambeno-biotehnološki fakultet, Zagreb,
Institut "Ruđer Bošković", Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE