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Mass spectrometry analysis of by-products and intermediary metabolites from linear alkylbenzene sulfonate under anaerobic degradation

Grant number: 16/06338-1
Support type:Scholarships abroad - Research Internship - Post-doctor
Effective date (Start): September 11, 2016
Effective date (End): March 10, 2017
Field of knowledge:Engineering - Sanitary Engineering - Water Supply and Wastewater Treatment
Principal Investigator:Maria Bernadete Amâncio Varesche
Grantee:Fabricio Motteran
Supervisor abroad: Pablo Antonio Lara Martin
Home Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
Local de pesquisa : Universidad de Cádiz (UCA), Spain  
Associated to the scholarship:13/19025-3 - INCREASING SCALE OF ANAEROBIC FLUIDIZED BED REACTOR FOR REMOVAL OF ANIONIC AND NONIONIC SURFACTANTS IN COMMERCIAL LAUNDRY WASTEWATER, BP.PD

Abstract

The pollution of ecosystems, including watercourses and sediment, usually occurs by the disposal of organic matter and chemical compounds. A Wide variety of these compounds are continuously discharged into the environment as a result of human activity. Moreover, many of these compounds are from industrial origin and classified as xenobiotics. Surfactants as linear alkylbenzene sulfonate (LAS) is one of the surfactants present in different aquatic ecosystems. Although methods of LAS degradation is already known the byproducts generated by this degradation are not fully studied. In this study the anaerobic degradation of LAS will be analyzed in anaerobic batch reactors with sediment marine and sludge from an upflow anaerobic sludge blanket (UASB) used in the treatment of slaughterhouse wastewater as inoculum for the assessment and identification of by-products and metabolites from the anaerobic degradation of LAS through liquid chromatography coupled to mass spectrometry. Thus, this study can fill gaps with regard to the anaerobic degradation of this surfactant and identify the by-products and assist in biodegradation compression in continuous flow anaerobic reactors.