Biodiesel production in crude oil contaminated environment using Chlorella vulgaris

• Published in: Bioresource technology Vol. 222; pp. 190 - 194
• Main Authors: Xaaldi Kalhor, Aadel, Mohammadi Nassab, Adel Dabbagh, Abedi, Ehsan, Bahrami, Ahmad, Movafeghi, Ali
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01-12-2016
• Subjects: Algal phytoremediation; Biodiesel; Biofuels; Chlorella vulgaris; Chlorella vulgaris - growth & development; Crude oil; Environmental Restoration and Remediation - methods; Microalgae - growth & development; Petroleum - microbiology; Petroleum Pollution; Waste Water - microbiology; Algal phytoremediation; Crude oil; Biodiesel; Chlorella vulgaris
• ISSN: 0960-8524; 1873-2976
• DOI: 10.1016/j.biortech.2016.09.110

•Dry mass of Chlorella vulgaris enhanced by the increasing crude oil concentration.•Maximum oil percent was 20% more than the control sample.•Biodiesel yield was decreased with increased concentrations of crude oil.
Biodiesel is a valuable alternative to fossil fuels and many countries choose biodiesel as an unconventional energy source. A large number of investigations have been done on microalgae as a source of oil production. In recent years, wastewater pollutions have caused many ecological problems, and therefore, wastewater phycoremediation has attracted the international attention. This paper studied the cultivation of Chlorella vulgaris in a crude oil polluted environment for biodiesel production. Intended concentrations were 10 and 20gperliter (crude oil/water) at two times. The results showed that the growth of C. vulgaris was improved in wastewater and the maximum amount of dry mass and oil was produced at the highest concentration of crude oil (0.41g and 0.15g/l, respectively). In addition, dry mass and oil yield of the microalga were significantly enhanced by increasing the experiment duration.