Biosorption of arsenic through bacteria isolated from Pakistan

The aim of this study was to isolate arsenic-resistant bacteria and to further exploit it for remediation purposes. In the present study, we have isolated arsenic-resistant strain from ground water of Pakistan AT-01. The strain was cultivated at 37 °C in Luria Bertani broth supplemented with differe...

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Bibliographic Details
Published in:International microbiology 2019-03, Vol.22 (1), p.59-68
Main Authors: Tariq, Aamira, Ullah, Ubaid, Asif, Maleeha, Sadiq, Irfan
Format: Article
Language:English
Subjects:
Applied Microbiology
Arsenates
Arsenic
Arsenic removal
Arsenite
Bacteria
Biomedical and Life Sciences
Bioremediation
Biosorption
Contamination
Eukaryotic Microbiology
Groundwater
Groundwater pollution
High resistance
Life Sciences
Medical Microbiology
Microbial Ecology
Microbiology
Minimum inhibitory concentration
Original Article
Pollutant removal
Pseudomonas aeruginosa
Soil contamination
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Summary:The aim of this study was to isolate arsenic-resistant bacteria and to further exploit it for remediation purposes. In the present study, we have isolated arsenic-resistant strain from ground water of Pakistan AT-01. The strain was cultivated at 37 °C in Luria Bertani broth supplemented with different concentrations of arsenate and arsenite. The minimum inhibitory concentration of arsenic against the bacterial isolate was 7 g/L (7000 mg/L) for arsenate and 1.4 g/L (1400 mg/L) for arsenite salt. The bacterial isolate was also characterized both on molecular and biochemical basis. The isolated strain belonged to the Pseudomonas aeruginosa. The high resistance against arsenic offered by the bacteria was exploited further for bioremediation purposes. The bacterial biomass generated from AT-01 strain was able to efficiently remove arsenic with 98% efficiency. Arsenic contamination of ground water is a widespread worldwide problem. The present study shows the potential of high arsenic-resistant bacteria for efficient arsenic removal.
ISSN:1139-6709
1618-1905
DOI:10.1007/s10123-018-0028-8