Biodisposition of linear alkylbenzene sulphonates and their associated sulphophenyl carboxilic acid metabolites in sea water

Perales, José A.; Manzano, Manuel A.; Sales, D.; Quiroga, José María

doi:10.1016/s0964-8305(02)00141-5

Cited by 12 publications

(15 citation statements)

References 17 publications

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“…3). Perales et al (2003) corroborate the metabolic route of LAS biodegradation proposed by several authors, in which the LAS first undergoes oxidation of the extreme terminal of the alkyl chain with the consequent formation of SPCs of long chain and subsequently a successive shortening of the alkyl chain takes place.…”

Section: Biodegradation Of Surfactantssupporting

confidence: 89%

Surfactants in sludge-amended agricultural soils: a review

et al. 2008

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Surfactants are included in different detergent formulations and are one of the most ubiquitous and important families of organic compounds. Although the generic term applies to a great number of products, 80% of their demand is covered by only ten types of compounds. The global surfactant market volume size is more than 18 million tons per year. Large quantities of surfactants are continuously released into the environment, where they can or cannot be degraded depending on their structure. The alkylbenzenesulphonate (LAS) is the most widely used surfactant. LAS can be degraded under aerobic conditions but is persistent in the environment under anaerobic conditions. Surfactants may enter the terrestrial environment through several routes, with the use of sewage sludge as fertiliser on agricultural land being by far the most important. High concentrations of surfactants and their degradation products may affect the biota. On the other hand, due to their amphiphilic nature, surfactants may interact both with inorganic as well as organic contaminants affecting their bioavailability.

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Section: Biodegradation Of Surfactantssupporting

confidence: 89%

Surfactants in sludge-amended agricultural soils: a review

et al. 2008

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“…These results were also compared with those obtained by Perales et al (2003) who used seawater samples from the Bay of Cadiz (Atlantic Ocean), and where the experimental temperature was set at 20°C (18°C in our study). Their experimental conditions were similar to those of protocol A.…”

Section: Biodegradation Studymentioning

confidence: 88%

“…Little research has been published on these compounds in seawater, other than in the region of Cadiz (Atlantic Ocean) (Gonzalez-Mazo et al 1997;Leon et al 2004;Perales et al 2003). Therefore, the aim of this study was to set up a global investigation of the most worrisome surfactants (LAS and NPE) in a Mediterranean environment to assess contaminant occurrence and fate.…”

Section: Introductionmentioning

confidence: 99%

Occurrence and fate of selected surfactants in seawater at the outfall of the Marseille urban sewerage system

Robert‐Peillard

Syakti

Coulomb

et al. 2014

Int. J. Environ. Sci. Technol.

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This paper describes an investigation of linear alkylbenzene sulfonates (LAS) and nonylphenol ethoxylates (NPEO) and their metabolites in the vicinity of the Marseille sewage outfall (wastewater treatment plant with a capacity of 1.860 million inhabitant equivalents, Northwestern Mediterranean, southeast of France). This analytical survey describes their occurrence in the subsurface and sea surface layers and investigates their possible fates in this marine environment. The results indicated the presence of LAS in both layers and up to 3 km from the discharge point, whereas the concentration of sulfophenyl carboxylic acids, which are the main metabolites of LAS, was only significant near the sewer outfall and in the surface layer. The NPEO were present only in minor quantities, especially near the discharge point, and no other selected metabolites were detected. The fate of the surfactants in question was then assessed by two types of experiments according to their potential means of degradation under natural conditions. Biodegradation assays were conducted according to a protocol defined by the United States Environmental Protection Agency (''Biodegradability in sea water, 835.3160''), with variations in the substrate input frequencies. Photodegradation experiments were carried out in a solar simulator reactor. These results demonstrated the low photodegradability and rapid primary biodegradation of LAS (with half-life times between 10.3 and 11.5 days) in the coastal area under study, although some LAS metabolites were more recalcitrant to biodegradation in this specific environment, which was also validated by linear alkylbenzene analysis in the two selected sediment stations.

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“…The biodegradation of this surfactant has been demonstrated at levels exceeding 98%, although its degradation extent depends on its concentration. In this sense, a complete degradation was observed at concentrations of 10 mg l )1 , although mineralization did not take place above this level owing to the surfactant bacteriostatic effects (Larson and Payne 1981;Yadav et al 2001;Perales et al 2003). Despite the fact that some micro-organisms can degrade LAS as pure cultures (Schleheck et al 2000), associations of several bacterial strains are usually required to achieve its mineralization under aerobic conditions (Jiménez et al 1991;Sigoillot and Nguyen 1992).…”

Section: )mentioning

confidence: 99%

Degradation of linear alkylbenzene sulfonate by a bacterial consortium isolated from the aquatic environment of Argentina

Peressutti

Olivera

Babay

et al. 2008

Journal of Applied Microbiology

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Aims: To isolate and identify linear alkylbenzene sulfonate (LAS)‐degrading bacteria from Río de la Plata and adjacent waters, and to assay their degradation capability as a consortium and as single organisms. Methods and Results: A consortium consisting of four bacterial strains: Aeromonas caviae (two strains), Pseudomonas alcaliphila and Vibrio sp. was identified by 16S rRNA analysis. Isolates grown as a consortium produced higher biomass from LAS and CO2 release (mineralization) than individual cultures, and degraded 86% of LAS (20 mg l−1), whereas pure strains degraded between 21% and 60%. Bacterial desulfonation from LAS was evidenced in the consortium and A. caviae strains. A complete disappearance of LAS (10 mg l−1) was accomplished, and LAS levels of 50 and 100 mg l−1 led to a pronounced decrease in the biodegradation extent and inhibition of culture growth. Conclusions: A bacterial consortium capable of complete LAS degradation was isolated from the Río de la Plata and adjacent waters. This consortium was more efficient for LAS degradation than individual cultures, and was sensitive to high LAS concentrations. Significance and Impact of the Study: The autochthonous consortium with high effectiveness on LAS biodegradation is a useful tool for LAS depletion from these polluted ecosystems.

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Biodisposition of linear alkylbenzene sulphonates and their associated sulphophenyl carboxilic acid metabolites in sea water

Cited by 12 publications

References 17 publications

Surfactants in sludge-amended agricultural soils: a review

Surfactants in sludge-amended agricultural soils: a review

Occurrence and fate of selected surfactants in seawater at the outfall of the Marseille urban sewerage system

Degradation of linear alkylbenzene sulfonate by a bacterial consortium isolated from the aquatic environment of Argentina

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