Biopolymers Production by Mixed Culture and Their Applications in Water and Wastewater Treatment

Thirteen extracellular polymeric substances (EPS) producing bacterial strains were cultivated (as pure/mixed culture) in sterilized sludge (suspended solids: 25 g/L). The mixed culture produced higher concentrations of EPS (4.9 g/L) as compared to that of the pure culture (2.7-3.7 g/L). The harveste...

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Veröffentlicht in:Water environment research : a research publication of the Water Environment Federation. - 1998. - 87(2015), 6 vom: 04. Juni, Seite 533-46
1. Verfasser: More, Tanaji T (VerfasserIn)
Weitere Verfasser: Yan, Song, Tyagi, Rajeshwar Dayal, Surampalli, Rao Y
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2015
Zugriff auf das übergeordnete Werk:Water environment research : a research publication of the Water Environment Federation
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Biopolymers Sewage Waste Water Water Pollutants, Chemical
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520 |a Thirteen extracellular polymeric substances (EPS) producing bacterial strains were cultivated (as pure/mixed culture) in sterilized sludge (suspended solids: 25 g/L). The mixed culture produced higher concentrations of EPS (4.9 g/L) as compared to that of the pure culture (2.7-3.7 g/L). The harvested EPS were examined for their flocculation performance (turbidity removal and dewatering) in jar tests using kaolin suspensions with Ca2+. Broth (B-EPS) revealed high kaolin flocculating activity (91.2%) at very low concentrations (0.8 mg B-EPS/g kaolin) and it was comparable to the chemical polymer, Magnafloc-155 (90.4% at 0.2 mg/g kaolin). B-EPS also exhibited very good flocculation performance (turbidity removal %) in river water (93.5%), municipal wastewater (91.7%) and brewery wastewater (81.8%). The study revealed that the mixed culture consortium could be used for the production of highly efficient flocculants 
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700 1 |a Tyagi, Rajeshwar Dayal  |e verfasserin  |4 aut 
700 1 |a Surampalli, Rao Y  |e verfasserin  |4 aut 
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