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:: Volume 19, Number 3 (Iranian South Medical Journal 2016) ::
Iran South Med J 2016, 19(3): 361-371 Back to browse issues page
Bioremediation of polluted beaches with PAHs by using biosurfactant produced by bacterium isolated from Persian Gulf
Sahand Jorfi *1, Neamatollah Jafarzadeh Haghighifard2, Mehdi Ahmadi2, Afshin Takdastan2, Mohammadhassan Bazafkan3, Seyadeh Maryam Mousavi3, Samaneh Mirali3
1- Department of Environmental Health, School of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. , Sahand369@yahoo.com
2- Department of Environmental Health, School of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
3- Department of Environmental Health, School of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
Abstract:   (1671 Views)

Background: PAHs was producted from incomplete combustion of fossil fuels and due to nature of publishing, it was categorized as the soil and beaches pollutant. These compounds are considered in pollutants which have priority, carcinogenic and certain mutagenic. The main difficulty of clearing contaminated areas to PAHs is the nature of highly water repellent of these pollutants and a strong attraction to the soil texture. The main objective of this current study was to determine the efficiency of phenanthrene removal from contaminated soil and beaches by using biosurfactant produced by a bacterium isolated from Persian Gulf.

Materials & Methods: with primary screening, a Bacillus sp strain with surfactin production capability was isolated and purified in laboratory. A mixed bacterial consortium isolated which was consists of three bacterial species with of capable of metabolism of phenanthrene from Khark contaminated beaches and was used as a microbial seed. The synthetic soil samples with initial phenanthrene concentration of 100 mg/kg and also natural contaminated samples were subjected to bioremediation during 9 weeks.

Results: The phenanthrene removal efficiency in the samples containing biosurfactants and with artificial and natural pollution were 82% and 39% respectively. The removal efficiency for samples without biosurfactant was 11%.

Conclusion: The bioremediation process is considered an efficient, eco-friendly and operational for remediation of beache and soil polluted by petroleum hydrocarbons by using bacterial biosurfactant.

Keywords: beches polluted, PAHs, Biosurfactan, Bioremediation
Full-Text [PDF 573 kb]   (561 Downloads)    
Type of Study: Original | Subject: Disorders of Systemic, Metabolic or Environmental Origin
Received: 2016/07/17 | Accepted: 2016/07/17 | Published: 2016/07/17
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DOI: 10.18869/acadpub.ismj.19.3.361


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Jorfi S, Jafarzadeh Haghighifard N, Ahmadi M, Takdastan A, Bazafkan M, Mousavi S M et al . Bioremediation of polluted beaches with PAHs by using biosurfactant produced by bacterium isolated from Persian Gulf. Iran South Med J. 2016; 19 (3) :361-371
URL: http://ismj.bpums.ac.ir/article-1-800-en.html
Volume 19, Number 3 (Iranian South Medical Journal 2016) Back to browse issues page
دانشگاه علوم پزشکی بوشهر، طب جنوب ISMJ

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