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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 2
First page : (782) Last page : (792)
Article doi: : http://dx.doi.org/10.18782/2320-7051.6401

Bacterial Approaches for Reclamination of Chromium (VI) Polluted Soil

Narendra Kumar Ahirwar1*, Ravindra Singh1 and P. K. Gupta2

1Department of Biological Sciences, Mahatma Gandhi Chitrakoot Gramadaya
Vishwavidhyalaya Chitrakoot, Satna, (M. P.), India
2Govt. PG College, Manikpur,Chitrakoot , Utter Pradesh
*Corresponding Author E-mail: narendra.ahirwar@yahoo.com
Received: 11.03.2018  |  Revised: 16.04.2018   |  Accepted: 20.04.2018  



In recent day’s industrialization is growing in very faster rate than any other activities. Due to industrialization, the heavy metals pollution load for soil, water and air has increasing day by day. The environmental pollution of toxic heavy metals is the major problem throughout the world since industrial evolution. Chromium is one of these heavy metals whose concentration in the environment is increasing due to many different industries, including metallurgical, electroplating, production of paints and pigments, tanning, wood preservation, Cr chemicals production, and pulp and paper production. There are two inorganic forms, Cr (VI) and Cr (III), in which chromium exists in nature. Cr (VI) is a serious environmental pollutant. A variety of microorganisms have been known for their ability to degrade these heavy metals. The current study aimed to isolate chromium reducing microorganism from industrial affected soil area of Mandideep, Madhya Pradesh. Among all the species diversity in soil, selected three bacterial isolated strains were named as (SS2, MR4, and MR5). These organisms were identified based on the cultural, morphology and biochemical characteristics and results of SS2 (Pseudomonas fluorescence), MR4 (Bacillus cereus) and MR5 (Bacillus decolorationis).The species were characterized according to criteria given in Bergey's Manual of Determinative Bacteriology1. The heavy metals degradation of isolated bacterial strains was analyzed based on the growth of Chromium containing medium. The efficiency of three isolates for chromium reduction was also determined, which shows that SS2 show 73% reduction, followed by MR4  65% reduction and MR5 58% reduction of chromium, degrading ability of isolated strains were analyzed at 48 hours after inoculation from the medium.

Key words: Heavy metal, Biodegradation, Chromium reduction, Pseudomonas fluorescence, Bacillus cereus and Bacillus decolorationis.

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Ahirwar, N.K., Singh, R. and Gupta, P. K., Bacterial Approaches for Reclamination of Chromium (VI) Polluted Soil, Int. J. Pure App. Biosci.6(2): 782-792 (2018). doi: http://dx.doi.org/10.18782/2320-7051.6401

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