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Effect of temperature on the biodegradation of linear alkylbenzene sulfonate and alcohol ethoxylate
Author(s) -
Prats Daniel,
López Carmen,
Vallejo Diana,
Varó Pedro,
León Víctor M.
Publication year - 2006
Publication title -
journal of surfactants and detergents
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.349
H-Index - 48
eISSN - 1558-9293
pISSN - 1097-3958
DOI - 10.1007/s11743-006-0377-8
Subject(s) - biodegradation , chemistry , linear alkylbenzene , sulfonate , pulmonary surfactant , alcohol , nonionic surfactant , chromatography , organic chemistry , environmental chemistry , sodium , biochemistry
The effect of temperature on the biodegradation of linear alkylbenzene sulfonate (LAS) and alcohol ethoxylate (AE) was evaluated using method OECD 303 A, Confirmatory test (Husmann units). The experiments were performed using an initial surfactant concentration of 10 mg/L and working temperatures of 25, 15, and 9°C, keeping the biodegradation units inside a thermostatic chamber. In all cases, the removal of both surfactants tested, LAS and AE, was higher than 90%, regardless of the temperature used in the test. We observed that longer acclimation periods were needed by the microorganisms at lower temperatures.