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EPS producing microorganisms from municipal wastewater activated sludge.

Klai, Nouha; Yan, Song; Tyagi, Rajeshwar Dayal; Surampalli, Rao Y. (2015). EPS producing microorganisms from municipal wastewater activated sludge. Journal of Petroleum & Environmental Biotechnology , vol. 7 , nº 1. p. 1000255. DOI: 10.4172/2157-7463.1000255.

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Résumé

bstract Bacterial exopolysacchrides (EPSs) are produced by many bacteria. Nowadays there is an increasing interest in the isolation and exploitation of these polymers for industrial purposes. In general, biosynthesis of EPS varies from one strain to other strain and it depends on genes and enzymes involved in EPS production and secretion. In this study, EPS producing strains were isolated from municipal wastewater treatment plant and their potential of EPS production was evaluated. The role of EPS in sludge flocculation was also studied. Three types of EPS (LB-EPS (Loosely bound EPS), TB-EPS (Tightly bound EPS) and B-EPS (broth EPS)) were harvested and their characteristics were studied. Bio-flocculation capacity of the obtained EPS was evaluated by measuring the kaolin clay flocculation activity. The LB-EPS was better than TB-EPS and B-EPS for bioflocculation.

Type de document: Article
Mots-clés libres: strain producing EPS isolation; EPS production; bioflocculation
Centre: Centre Eau Terre Environnement
Date de dépôt: 23 avr. 2018 14:06
Dernière modification: 23 avr. 2018 14:06
URI: http://espace.inrs.ca/id/eprint/3871

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