Biosurfactant mediated bioelectrokinetic remediation of diesel contaminated environment

Jeevanandam Vaishnavi; Sandhanasamy Devanesan; Mohamad S AlSalhi; Aruliah Rajasekar; Adikesavan Selvi; Palanisamy Srinivasan; Muthusamy Govarthanan

doi:10.1016/j.chemosphere.2020.128377

Biosurfactant mediated bioelectrokinetic remediation of diesel contaminated environment

Chemosphere. 2021 Feb;264(Pt 1):128377. doi: 10.1016/j.chemosphere.2020.128377. Epub 2020 Sep 18.

Authors

Jeevanandam Vaishnavi¹, Sandhanasamy Devanesan², Mohamad S AlSalhi³, Aruliah Rajasekar⁴, Adikesavan Selvi¹, Palanisamy Srinivasan⁵, Muthusamy Govarthanan⁶

Affiliations

¹ Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkadu, Vellore, 632115, Tamilnadu, India.
² Research Chair in Laser Diagnosis of Cancers, Department of Physics and Astronomy, College of Science, King Saud University, Riyadh KSA, P.O. Box -2455, Riyadh, 11451, Saudi Arabia.
³ Research Chair in Laser Diagnosis of Cancers, Department of Physics and Astronomy, College of Science, King Saud University, Riyadh KSA, P.O. Box -2455, Riyadh, 11451, Saudi Arabia. Electronic address: malsalhi@ksu.edu.sa.
⁴ Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkadu, Vellore, 632115, Tamilnadu, India. Electronic address: rajasekargood@tvu.edu.in.
⁵ PG & Research Department of Biotechnology, Mahendra Arts and Science College, Kalipatti, 637501, Tamil Nadu, India.
⁶ Department of Environmental Engineering, Kyungpook National University, Daegu, South Korea. Electronic address: gova.muthu@gmail.com.

PMID: 33017706
DOI: 10.1016/j.chemosphere.2020.128377

Abstract

The present study integrated the electrokinetic (EK) with bioremediation (Bioelectrokinetic -BEK) of diesel hydrocarbon by Staphylococcus epidermidis EVR4. It was identified as efficient biosurfactant producing bacteria and growth parameters was optimized using response surface methodology. Upon degradation, there is a complete disappearance of peaks from nonane (C₉) to tricosane (C₂₃) and 85%, 47% of degradation of pentacosane and octacosane respectively. Marine bacterial strain, EVR4 was found to be potential to degrade the diesel with a maximum degradation efficiency of 96% within 4 d, which was due to its synergistic role of biosurfactant and catabolic enzymes (dehydrogenase, catalase and cytochrome C). The application of integrated BEK was an effective insitu method for the remediation of diesel contaminated soil by BEK (84%) than EK (67%). EVR4 as an effective strain can be employed for BIO-EK method to clean the diesel hydrocarbon polluted environment.

Keywords: Biodegradation; Biosurfactant; Diesel; Electrokinetic remediation; Hydrocarbon degradation.

MeSH terms

Bacteria
Biodegradation, Environmental
Hydrocarbons
Soil
Soil Microbiology
Soil Pollutants* / analysis

Substances

Hydrocarbons
Soil
Soil Pollutants