TY - JOUR
T1 - Modified amylopectin based flocculant for the treatment of synthetic effluent and industrial wastewaters
AU - Sarkar, Amit Kumar
AU - Ghorai, Soumitra
AU - Patra, Abhay Shankar
AU - Mishra, Brijesh K.
AU - Mandre, N. R.
AU - Pal, Sagar
N1 - Publisher Copyright:
© 2014 Elsevier B.V.
PY - 2014/12/1
Y1 - 2014/12/1
N2 - Herein, we report the application of an efficient polymeric flocculant based on amylopectin grafted with poly (acrylic acid) (g-AP) for the treatment of synthetic effluent as well as various industrial wastewaters. The flocculation characteristics of g-AP have been explored in different pH conditions using silica suspension by measurement of residual turbidity as well as floc size. Results suggest that in acidic pH, patching mechanism is predominating while at neutral and alkaline pH, bridging is the main mechanism. In addition, aggregation of particles and particle collision models confirm that bridging mechanism is the key mechanism at alkaline condition. Further, g-AP demonstrates excellent potential as flocculant for the treatment of paper effluent, textile wastewater and shows better flocculation performance than that of commercially available flocculant. Besides, the pilot scale study of mine processwater suggests excellent efficacy of g-AP as flocculant.
AB - Herein, we report the application of an efficient polymeric flocculant based on amylopectin grafted with poly (acrylic acid) (g-AP) for the treatment of synthetic effluent as well as various industrial wastewaters. The flocculation characteristics of g-AP have been explored in different pH conditions using silica suspension by measurement of residual turbidity as well as floc size. Results suggest that in acidic pH, patching mechanism is predominating while at neutral and alkaline pH, bridging is the main mechanism. In addition, aggregation of particles and particle collision models confirm that bridging mechanism is the key mechanism at alkaline condition. Further, g-AP demonstrates excellent potential as flocculant for the treatment of paper effluent, textile wastewater and shows better flocculation performance than that of commercially available flocculant. Besides, the pilot scale study of mine processwater suggests excellent efficacy of g-AP as flocculant.
KW - Amylopectin
KW - Flocculation
KW - Industrial wastewater
UR - http://www.scopus.com/inward/record.url?scp=84907484957&partnerID=8YFLogxK
U2 - 10.1016/j.ijbiomac.2014.08.019
DO - 10.1016/j.ijbiomac.2014.08.019
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C2 - 25159884
AN - SCOPUS:84907484957
SN - 0141-8130
VL - 72
SP - 356
EP - 363
JO - International Journal of Biological Macromolecules
JF - International Journal of Biological Macromolecules
ER -