Biodegradation of fatty alcohol ethoxylates under the conditions of the die-away test

• Autorzy: Szymanski A , Bubien E. , Kurosz T. , Wolniewicz A. , Lukaszewski Z.
• Języki publikacji: EN

Abstrakty

EN

Oxyethylated alcohol ± surfactant C12E10 ± was tested under the conditions of the die-away test with activated sludge as inoculum. The residual surfactant and its biotransformation by-products: short-chained ethoxylates (SCE) and long-and short-chained poly(ethylene glycols) (PEG) were separated and determined using the indirect tensammetric technique. A high percentage of primary biodegradation (98.5%) and high concentration of SCE and PEG was found at the end of the experiment. There is a clear sequence of biotransformation: central fission ® fragmentation of the long-chained PEG into short-chained PEG. Generally, the same pathway was observed as in the case of oxyethylated alcohol biodegradation under the conditions of the continuous flow activated sludge test.

Słowa kluczowe

EN

biodegradation; die-away test; sludge test; oxyethylated alcohol; fatty alcohol ethoxylate; biotransformation; surfactant; flow; activated sludge; condition

• Wydawca: -
• Czasopismo: Polish Journal of Environmental Studies
• Rocznik: 2002
• Tom: 11
• Numer: 4
• Opis fizyczny: p.429-433,fig.

Twórcy

autor

Szymanski A

• Poznan University of Technology, Piotrowo 3, 60-965 Poznan, Poland

autor

Bubien E.

autor

Kurosz T.

autor

Wolniewicz A.

autor

Lukaszewski Z.

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