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Application of bioflocculating property of Pseudomonas aeruginosa strain IASST201 in treatment of oil‐field formation water
Author(s) -
Pathak Mihirjyoti,
Devi Arundhuti,
Sarma Hridip Kumar,
Lal Banwari
Publication year - 2014
Publication title -
journal of basic microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.58
H-Index - 54
eISSN - 1521-4028
pISSN - 0233-111X
DOI - 10.1002/jobm.201301011
Subject(s) - biofilm , chemistry , flocculation , pseudomonas aeruginosa , extracellular polymeric substance , bacteria , pseudomonas , strain (injury) , bacterial growth , kinetics , fourier transform infrared spectroscopy , yield (engineering) , microbiology and biotechnology , food science , chromatography , chemical engineering , organic chemistry , biology , materials science , genetics , physics , anatomy , quantum mechanics , engineering , metallurgy
A bioflocculating activity of 89.8% was depicted by an activated sludge‐borne bacteria Pseudomonas aeruginosa strain IASST201 with a yield of bioflocculant of 2.68 g L −1 obtained from production media broth after optimization of different parameters. The highest bioflocculation efficiency was found at the pre‐stationary phase of the bacterial growth period in the production media broth at 96th hour examined from a growth‐flocculation kinetics study. 85.67% of bioflocculation was observed in oil‐field formation water, with a separation of 68.7% of aliphatic hydrocarbon contents of the formation water after the application of the bacterial bioflocculant by entrapment mechanism with formation of flocs which was analyzed and examined comparatively through gas‐chromatography. Extensive removal of heavy metal contents of the oil‐field formation water due to bioflocculation was estimated by Atomic Absorption Spectrophotometer (AAS). The SEM and AFM studies declare the extracellular polymeric nature of the bioflocculant produced by this bacterium clumped within bacterial biofilm supported with FTIR study of the extracted bioflocculant.