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Pregled bibliografske jedinice broj: 171890

Removal of Aromatic Surfactants from Municipal Wastewaters Using a Membrane Biological Reactor


Matošić, Marin; Terzić, Senka; Ahel, Marijan; Mijatović, Ivan
Removal of Aromatic Surfactants from Municipal Wastewaters Using a Membrane Biological Reactor // Book of abstracts: 2nd Central European Meeting 5th Croatian Congress of Food technologists, biotechnologists and nutritionists / Karlović, Damir (ur.).
Zagreb: Food technologists, biotechnologists and nutritionists Society, 2004. str. 174-174 (poster, međunarodna recenzija, sažetak, znanstveni)


Naslov
Removal of Aromatic Surfactants from Municipal Wastewaters Using a Membrane Biological Reactor

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

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of abstracts: 2nd Central European Meeting 5th Croatian Congress of Food technologists, biotechnologists and nutritionists / Karlović, Damir - Zagreb : Food technologists, biotechnologists and nutritionists Society, 2004, 174-174

Skup
2nd Central European Meeting 5th Croatian Congress of Food technologists, biotechnologists and nutritionists

Mjesto i datum
Opatija, 17-20.10.2004

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Nonylphenol (NP) nonylphenol monoethoxylate (NP1EO); nonylphenol diethoxylate (NP2EO) and nonylphenoxy carboxylic acids (NPnEC).

Sažetak
Removal of anionic surfactants of linear alkylbenzene sulphonates (LAS) type and non-ionic surfactants of nonylphenol polyethoxylate (NPnEO) type from municipal wastewater were studied using a pilot-scale membrane biological reactor (MBR) unit, which consisted of a 200 L primary settling tank and a 40 L aerated bioreactor equipped with an immersed hollow fiber microfiltration membrane. Samples of the effluents from the primary tank and aerated secondary tank were analysed for a period of 60 days. LAS and NPnEO were determined using high performance liquid chromatography (HPLC) equipped with spectrofluorimetric detection, while 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. After an initial adaptation period, the elimination efficiency of both types of aromatic surfactants using the MBR unit was rather high (>90 %), which is comparable to that in the conventional sewage treatment plants (STP). The removal of parent surfactant molecules, both in conventional STP and MBR, is accompanied by the formation of stable metabolic products. The composition of recalcitrant nonylphenolic residues in the MBR effluents seems to be ecotoxicologically more favourable due to a more efficient physico-chemical removal of the toxic lipophylic metabolites.

Izvorni jezik
Engleski

Znanstvena područja
Geologija, Kemijsko inženjerstvo



POVEZANOST RADA


Projekt / tema
0098120
0125016

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