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Fourier Transform Infrared Spectroscopy and Liquid Chromatography–Mass Spectrometry Study of Extracellular Polymer Substances Produced on Secondary Sludge Fortified with Crude Glycerol.

Nouha, Klai; Hoang, N. V.; Tyagi, Rajeshwar Dayal (2016). Fourier Transform Infrared Spectroscopy and Liquid Chromatography–Mass Spectrometry Study of Extracellular Polymer Substances Produced on Secondary Sludge Fortified with Crude Glycerol. Journal of Material Science & Engineering , vol. 05 , nº 03. DOI: 10.4172/2169-0022.1000240.

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Résumé

This study was conducted to characterize the extracellular polymeric substances (EPS) produced by growing Cloacibacterium normanense in wastewater sludge alone and fortified crude glycerol. The EPS highest concentration of 17.5 g/L was produced using 25 g/L sludge suspended solids supplemented with 25 g/L of crude glycerol. Galactose and Glucose was the main compound of EPS produced with or without crude glycerol, respectively. EPS FTIR spectra revealed a variation in the different functional groups such as amines, carboxyl, and hydroxyl groups for EPS produced. Different functional groups were observed in the EPS produced with or without glycerol. The EPS exhibited kaolin flocculation activity up to 95% and was stable at high temperature. The high viscosity bioflocculant properties of EPS make it suitable for potential industrial applications.

Type de document: Article
Mots-clés libres: cloacibacterium normanense; EPS; activated sludge; crude glycerol; FTIR; rheology; bioflocculation
Centre: Centre Eau Terre Environnement
Date de dépôt: 04 mai 2018 14:06
Dernière modification: 04 mai 2018 14:06
URI: http://espace.inrs.ca/id/eprint/5709

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