Potential of the green alga Chlorella vulgaris for biodegradation of crude oil hydrocarbons.

Aadel Xaaldi Kalhor, Ali Movafeghi, Adel Dabbagh Mohammadi-Nassab, Ehsan Abedi, Ahmad Bahrami

Journal: Marine pollution bulletin 2018;123(1-2):286-290

PMID: 28844453

Full Text on Elsevier Science View on PubMed

Abstract

Oil production and/or transportation can cause severe environmental pollution and disrupt the populations of living organisms. In the present study, biodegradation of petroleum hydrocarbons is investigated using Chlorella vulgaris as a green algal species. The microalga was treated by 10 and 20g/l crude oil/water concentrations at two experimental durations (7 and 14days). Based on the results obtained, C. vulgaris owned not only considerable resistance against the pollutants but also high ability in remediation of crude oil hydrocarbons (~94% of the light and ~88% of heavy compounds in 14days). Intriguingly, dry weight of C. vulgaris increased by the rising crude oil concentration indicating the positive effect of crude oil on the growth of the algal species. This biodegradation process is remarkably a continuous progression over a period of time.

Address: Department of Plant Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran. Electronic address: [email protected].; Department of Plant Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran. Electronic address: [email protected].; Department of Plant Ecophysiology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran.; Persian Gulf Oceanography Research Station-Boushehr, Iran.; Department of Chemical Engineering, Faculty of Chemical Engineering, Islamic Azad University, Bandar Dayyer Branch, Dayyer, Iran.

DOI: 10.1016/j.marpolbul.2017.08.045

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MeSH Terms: Biodegradation, Environmental, Chlorella vulgaris, Hydrocarbons, Petroleum, Petroleum Pollution, Water Pollutants, Chemical