摘要:
The present disclosure provides methods of enhancing the biofuel potential of an algal culture, the ability of an algal culture to provide a biofuel such as a lipid or to be processed to a biofuel, the method comprising: contacting an algal culture with a composition selected to enhance the biofuel potential of an algal culture; and allowing the algal culture to incubate to the point where the potential of the algal culture to provide a biofuel product or be processed to a biofuel product is enhanced compared to when the algal culture is not in contact with the composition. The selected algal species can be a species of a genus selected from the group consisting of: Gloeocystis, Limnothrix, Scenedesmus, Chlorococcum, Chlorella, Anabaena, Chlamydomonas, Botryococcus, Cricosphaera, Spirulina, Nannochloris, Dunaliella, Phaeodactylum, Pleurochrysis, Tetraselmis, or any combination thereof, one suitable species being Chlorella sorokiniana. In some embodiments, the composition selected to enhance the biofuel potential of an algal culture can be a pesticide such as, but not limited to, malathion (2-(dimethoxyphosphinothioylthio)butanedioic acid diethyl ester).
摘要:
The disclosure encompasses, among other aspects, mixed algal populations able to survive and proliferate on culture media that have a high proportion of carpet industry wastewater. Embodiments further encompass methods of cultivating mixed populations of freshwater and marine alga comprising a plurality of genera and species to provide a biomass from which may be extracted lipids, or converted into biodiesel by such procedures as pyrolysis. Lipid material extracted from the algae may be converted to biodiesel or other organic products. A combined stream of carpet industry untreated wastewater with 10-15% sewage was found to be a good growth medium for cultivation of microalgae and biodiesel production. Native algal strains were isolated from carpet wastewater inoculated with mixed populations derived from environments exposed to such wastewater. Both fresh water and marine algae showed good growth in wastewaters. About 65% of the algal oil obtained from the algal consortium cultured on carpet industry wastewater could be converted into biodiesel.