Biodegradation of crude oil by immobilized microbial cells in alginate beads produced by electrospraying technique

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Khanpour Alikelayeh E.; PARTOVINIA A.; TALEBI A.; KERMANIAN H.

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Journal: IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT Year:2020 | Volume:12 | Issue:4 Page(s): 555-570

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Title

Biodegradation of crude oil by immobilized microbial cells in alginate beads produced by electrospraying technique

Author(s)

Khanpour Alikelayeh E. | PARTOVINIA A. | TALEBI A. | KERMANIAN H. | Issue Writer Certificate

Keywords

BiodegradationQ2

Wastewater treatmentsQ1

Crude oilQ2

Cell immobilizationQ1

Free cellQ1

Abstract

Background and Objective: Petroleum compounds are major contributors to aquatic environmental pollution. In recent years, biological treatments as environmental-friendly and cost-effective techniques have been used alongside the various physico-chemical methods. Microbial Cell immobilization in hydrogel carriers has been the focus of researchers due to various advantages such as ease of microbial species control, non-direct exposure of pollutants to the cells, increasing cell resistance during different types of stresses and reusability. The main goals of this study were introduction to electrospraying technique in order to size reduction of alginate beads and comparison of heavy Crude oil Biodegradation using an isolated strain of Bacillus licheniformis in free and immobilized cells. Materials and Methods: The oil-degrading strain was isolated from oil-polluted site on Kharg Island. Microbial cells were examined in both free and immobilized systems under different conditions (pH=5, 7) and initial Crude oil concentration (1500, 3500 ppm). Electrospraying technique was used for alginate beads production. Residual Crude oil content was analyzed by gas chromatograph and gravimetrically method. Results: The maximum oil removal (61%) was obtained for the immobilized cells at a concentration of 3500 ppm in neutral medium. Overall, according to the results, after the 14th day, the Biodegradation through the immobilized cells was significantly (p<0. 05) higher than the Free cells. Moreover, the Cell immobilization caused the microorganisms to be more resistant to the harsh environments. Conclusion: This study showed that the immobilized microbial cell system has a great potential for oil wastewater treatment. The electrospraying technique can be used to overcome to the mass transfer limitations.

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APA: Copy

Khanpour Alikelayeh, E., PARTOVINIA, A., TALEBI, A., & KERMANIAN, H.. (2020). Biodegradation of crude oil by immobilized microbial cells in alginate beads produced by electrospraying technique. IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT, 12(4 ), 555-570. SID. https://sid.ir/paper/394558/en

Vancouver: Copy

Khanpour Alikelayeh E., PARTOVINIA A., TALEBI A., KERMANIAN H.. Biodegradation of crude oil by immobilized microbial cells in alginate beads produced by electrospraying technique. IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT[Internet]. 2020;12(4 ):555-570. Available from: https://sid.ir/paper/394558/en

IEEE: Copy

E. Khanpour Alikelayeh, A. PARTOVINIA, A. TALEBI, and H. KERMANIAN, “Biodegradation of crude oil by immobilized microbial cells in alginate beads produced by electrospraying technique,” IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT, vol. 12, no. 4 , pp. 555–570, 2020, [Online]. Available: https://sid.ir/paper/394558/en

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