Production of a bioflocculant from Klebsiella sp. OS-1 using brewery wastewater as a source

Production of a bioflocculant from Klebsiella sp. OS-1 using brewery wastewater as a source

This study evaluated the potential of bioflocculant production from a Klebsiella strain using brewery wastewater as nutrients. The bioflocculant named OS-1B produced by Klebsiella sp. OS-1 exhibited a good flocculating activity to kaolin clay suspension (around 95%), when the diluted brewery wastewa...

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Détails bibliographiques
Publié dans:Environmental technology. - 1993. - 40(2019), 1 vom: 19. Jan., Seite 44-52
Auteur principal: Ma, Lili (Auteur)
Autres auteurs: Liang, Jingjing, Wang, Shanyi, Yang, Bing, Chen, Mingyan, Liu, Yucheng
Format: Article en ligne
Langue:English
Publié: 2019
Accès à la collection:Environmental technology
Sujets:Journal Article Bioflocculant Klebsiella sp brewery wastewater flocculating activity polysaccharide Waste Water Carbon 7440-44-0 Nitrogen N762921K75
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520 |a This study evaluated the potential of bioflocculant production from a Klebsiella strain using brewery wastewater as nutrients. The bioflocculant named OS-1B produced by Klebsiella sp. OS-1 exhibited a good flocculating activity to kaolin clay suspension (around 95%), when the diluted brewery wastewater with 7.2 mg/L total nitrogen and 1013 mg/L CODCr was used as a nitrogen source. Glucose (15 g/L) is the most favorable carbon source for Klebsiella sp. OS-1 in bioflocculant production from brewery wastewater. The yielded bioflocculant is pH tolerant and thermally stable, suggesting its good industrial potential. OS-1B mainly comprises polysaccharide (69.4%) and protein (24.5%). Fourier-transform infrared spectra indicate the presence of hydroxyl, carboxyl, esters and amino groups in the bioflocculant molecules. Combined with the results of zeta potential measurements, bridging is suggested as the main flocculation mechanism for OS-1B flocculation with kaolin. Overall, brewery wastewater can be used as a substrate to produce bioflocculants 
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700 1 |a Liang, Jingjing  |e verfasserin  |4 aut 
700 1 |a Wang, Shanyi  |e verfasserin  |4 aut 
700 1 |a Yang, Bing  |e verfasserin  |4 aut 
700 1 |a Chen, Mingyan  |e verfasserin  |4 aut 
700 1 |a Liu, Yucheng  |e verfasserin  |4 aut 
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