Extracellular polymeric substances (EPS) producing bacterial strains of municipal wastewater sludge: Isolation, molecular identification, EPS characterization and performance for sludge settling and dewatering

Subramanian, S.; Yan, Song; Tyagi, R. D.; Surampalli, Rao Y.

doi:10.1016/j.watres.2009.12.046

Cited by 301 publications

(114 citation statements)

References 26 publications

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“…The strains (NK2-NK9) isolated in this study in July 2013 were totally different from the strains (BS1-BS25) isolated by Subramanian et al [14] in January, 2010. In response to changes in season (summer/winter), the microbial community composition and biomass can change.…”

Section: Factors Affecting Microbial Communitycontrasting

confidence: 73%

“…In present work, the isolated strains were totally different from those isolated by Subramanian [14] even from same activated sludge. This could be explained by considering environmental factors that affected the bacterial community.…”

Section: Factors Affecting Microbial Communitycontrasting

confidence: 61%

“…The EPS concentration (11.8 ± 1.2 g/L) produced by Cloacibacterium normannese is the highest among all EPS producing strains isolated from wastewater sludge in this study and the previous studies [2,3,14]. The difference in EPS concentration could be explained by the genetics organisation of the EPS biosynthesis gene cluster among strains.…”

Section: Dna Characteristics and Sequences Analysis Of Isolated Strainssupporting

confidence: 50%

“…This is due to the difference in structure of strains, their capacity to assimilate carbon and nitrogen source available in the sterilized sludge, which in turn resulted in high EPS synthesis than others [14]. The synthesis of high EPS concentration by Cloacibacterium normanense (NK6) occurred in presence of some carbon source in the growth medium [14].…”

Section: Biochemical Characteristics Of Eps Producersmentioning

confidence: 99%

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EPS producing microorganisms from municipal wastewater activated sludge

Klai¹,

Yan²,

Rd³

et al. 2016

J Pet Environ Biotechnol

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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. The bioflocculation 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.

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Section: Factors Affecting Microbial Communitycontrasting

confidence: 73%

Section: Factors Affecting Microbial Communitycontrasting

confidence: 61%

Section: Dna Characteristics and Sequences Analysis Of Isolated Strainssupporting

confidence: 50%

Section: Biochemical Characteristics Of Eps Producersmentioning

confidence: 99%

See 2 more Smart Citations

EPS producing microorganisms from municipal wastewater activated sludge

Klai¹,

Yan²,

Rd³

et al. 2016

J Pet Environ Biotechnol

View full text Add to dashboard Cite

show abstract

“…Due to sample centrifugation before the measurement, the amount of EPS measured by the present method is only a portion of the total EPS in the process sample. 20 However, this amount can be regarded as an indicator to monitor the change of bacteria level during the process, which makes the method more efficient for the process study in bacterial-catalyzed Q degradation.…”

Section: Applicationmentioning

confidence: 99%