RT journal article
T1 Reactivity and fate of secondary alkane sulfonates (SAS) in marine sediments
A1 Baena Nogueras, Rosa María
A1 Rojas Ojeda, Patricia
A1 Sanz, José Luis
A1 González Mazo, Eduardo
A1 Lara Martín, Pablo Antonio
A2 Química Física
K1 Sorption Bioavailability Biodegradation Surfactants Sediment Metabolites
K1 Sorption
K1 Bioavailability
K1 Biodegradation
K1 Surfactants
K1 Sediment
K1 Metabolites
AB This research is focused on secondary alkane sulfonates (SAS), anionic surfactants widely used in household applications that access aquatic environments mainly via sewage discharges.We studied their sorption capacity and anaerobic degradation in marine sediments, providing the first data available on this topic. SAS partition coefficients increased towards those homologues having longer alkyl chains(from up to 141 L kg 1 for C14 to up to 1753 L kg 1 for C17), which were those less susceptible to undergo biodegradation. Overall, SAS removal percentages reached up to 98% after 166 days of incubation using anoxic sediments. The degradation pathway consisted on the formation of sulfocarboxylic acids after an initial fumarate attack of the alkyl chain and successive b-oxidations. This is the first study showing that SAS can be degraded in absence of oxygen, so this new information should be taken into account for future environmental risk assessments on these chemicals.
YR 2014
FD 2014-02-16T00:00:00Z
LK http://hdl.handle.net/10498/17062
UL http://hdl.handle.net/10498/17062
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 06-nov-2026