Heavy metals removal from wastewater using extracellular polymeric substances produced by Cloacibacterium normanense in wastewater sludge supplemented with crude glycerol and study of extracellular polymeric substances extraction by different methods

Heavy metals removal from wastewater using extracellular polymeric substances produced by... Bioresource Technology 212 (2016) 120–129 Contents lists available at ScienceDirect Bioresource Technology journal homepage: www.elsevier.com/locate/biortech Heavy metals removal from wastewater using extracellular polymeric substances produced by Cloacibacterium normanense in wastewater sludge supplemented with crude glycerol and study of extracellular polymeric substances extraction by different methods Klai Nouha, Ram Saurabh Kumar, R.D. Tyagi Université du Québec, Institut national de la recherche scientifique, Centre Eau, Terre & Environnement, 490 de la Couronne, Québec G1K 9A9, Canada highlights graphical a bstract Cloacibacterium normanense strain Adsorption and bridging was isolated from wastewater sludge. Negavely charge kaolin parcles 25.5 g/L of EPS was produced in crude glycerol fortified wastewater sludge. EDTA gave highest EPS extraction efficiency. Isolated strain EPS produced exhibited high flocculation activity (>90%) in kaolin solution. High efficiency of metal removal was achieved using 35 mg/L EPS. 0 60 120 180 240 300 360 420 480 540 600 660 720 780 840 Incubaon me (h) Al Cu Fe Ni Zn Heavy metal removal ar ti c l e i nf o ab stra ct Article history: Extracellular polymeric substances synthesis by Cloacibacterium was affected by different concentrations Received 18 February 2016 of glycerol in the medium. The concentration of EPS in 72 http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Bioresource Technology Elsevier

Heavy metals removal from wastewater using extracellular polymeric substances produced by Cloacibacterium normanense in wastewater sludge supplemented with crude glycerol and study of extracellular polymeric substances extraction by different methods

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Publisher
Elsevier
Copyright
Copyright © 2016 Elsevier Ltd
ISSN
0960-8524
D.O.I.
10.1016/j.biortech.2016.04.021
Publisher site
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Abstract

Bioresource Technology 212 (2016) 120–129 Contents lists available at ScienceDirect Bioresource Technology journal homepage: www.elsevier.com/locate/biortech Heavy metals removal from wastewater using extracellular polymeric substances produced by Cloacibacterium normanense in wastewater sludge supplemented with crude glycerol and study of extracellular polymeric substances extraction by different methods Klai Nouha, Ram Saurabh Kumar, R.D. Tyagi Université du Québec, Institut national de la recherche scientifique, Centre Eau, Terre & Environnement, 490 de la Couronne, Québec G1K 9A9, Canada highlights graphical a bstract Cloacibacterium normanense strain Adsorption and bridging was isolated from wastewater sludge. Negavely charge kaolin parcles 25.5 g/L of EPS was produced in crude glycerol fortified wastewater sludge. EDTA gave highest EPS extraction efficiency. Isolated strain EPS produced exhibited high flocculation activity (>90%) in kaolin solution. High efficiency of metal removal was achieved using 35 mg/L EPS. 0 60 120 180 240 300 360 420 480 540 600 660 720 780 840 Incubaon me (h) Al Cu Fe Ni Zn Heavy metal removal ar ti c l e i nf o ab stra ct Article history: Extracellular polymeric substances synthesis by Cloacibacterium was affected by different concentrations Received 18 February 2016 of glycerol in the medium. The concentration of EPS in 72

Journal

Bioresource TechnologyElsevier

Published: Jul 1, 2016

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