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Biodiesel production by microalgae cultivated using permeate from membrane bioreactors in continuous system
- Source :
- Water Science and Technology. 69:1813-1819
- Publication Year :
- 2014
- Publisher :
- IWA Publishing, 2014.
-
Abstract
- Microalgae in three submerged ceramic membrane photobioreactors (SCMPBRs) with different hydraulic retention times (HRTs) were fed with permeate of a submerged ceramic membrane bioreactor for a period of 3 months to investigate the lipid content and also the biodiesel quality produced at different HRTs. The lipid content, lipid productivity and fatty acid compositions for all three SCMPBRs were not significantly different at the 95% confidence level. These results suggested that insignificant change in the amount of fatty acids was observed at different HRTs that supplied varying concentration of nitrate in the medium. Among the fatty acids, palmitic acid, palmitoleic acid, oleic acid and linoleic acid were the main components, whereas stearic acid was a minor fatty acid. Since there was insignificant effect of HRT on lipid content, lipid productivity and fatty acid compositions, the optimum HRT for SCMPBRs can then be designed based on optimum nutrient removal performance and low membrane fouling propensity.
- Subjects :
- chemistry.chemical_classification
Environmental Engineering
Linoleic acid
Fatty Acids
Membrane fouling
Fatty acid
Lipids
Aerobiosis
Palmitic acid
chemistry.chemical_compound
Oleic acid
Bioreactors
chemistry
Biochemistry
Biofuels
Biodiesel production
Microalgae
Palmitoleic acid
Food science
Stearic acid
Chlorella vulgaris
Water Science and Technology
Subjects
Details
- ISSN :
- 19969732 and 02731223
- Volume :
- 69
- Database :
- OpenAIRE
- Journal :
- Water Science and Technology
- Accession number :
- edsair.doi.dedup.....72dcf75dd5fbec669a6577091bed6f15