Screening of microalgae with potential for biodiesel production and nutrient removal from treated domestic sewage

Sydney, Eduardo Bittencourt; Silva, T.E. da; Tokarski, A.; Novak, Alessandra Cristine; Carvalho, Júlio César de; Woiciecohwski, A.L.; Larroche, Christian; Soccol, Carlos Ricardo

doi:10.1016/j.apenergy.2010.11.024

Cited by 234 publications

(103 citation statements)

References 6 publications

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“…Eighty percent of the total fatty acids were composed of the three fatty acids. The fatty acids with carbon-16 and carbon-18 atoms were the main components in the neutral lipid, which was similar to traditional vegetable oils and adequate for biodiesel production [29][30][31].…”

Section: Fatty Acid Composition Of Neutral Lipidsmentioning

confidence: 97%

Effects of Light Intensity on the Growth and Lipid Accumulation of Microalga Scenedesmus sp. 11-1 Under Nitrogen Limitation

Liu

Yuan

et al. 2012

Appl Biochem Biotechnol

153

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Scenedesmus spp. have been reported as potential microalgal species used for the lipid production. This study investigated the effects of light intensity (at three levels: 50, 250, and 400 μmol photons m) on the growth and lipid production of Scenedesmus sp. 11-1 under N-limited condition. Carotenoid to chlorophyll ratio was higher when algae 11-1 grew under 250 and 400 μmol photons m . The major fatty acids in the neutral lipid of 11-1 were oleic acid (43-52 %), palmitic acid (24-27 %), and linoleic acid (7-11 %). In addition, polyunsaturated fatty acids had a positive correlation with total lipid production, and monounsaturated fatty acids had a negative one.

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Section: Fatty Acid Composition Of Neutral Lipidsmentioning

confidence: 97%

Effects of Light Intensity on the Growth and Lipid Accumulation of Microalga Scenedesmus sp. 11-1 Under Nitrogen Limitation

Liu

Yuan

et al. 2012

Appl Biochem Biotechnol

153

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“…Algal biodiesel production will therefore be limited by the standing crop of the microalgae and also by the lipid content. Both the quality and quantity of lipids produced will vary with the identity of the algal species as well as the site specific growth conditions (Brennan and Owende 2010, Sydney et al 2011, Yang et al 2011, Stockenreiter et al 2012). This variability probably reflects alteration in relative rates of production and utilization of storage lipids and modifications in the properties of cellular membranes (Rodolfi et al 2009).…”

Section: Discussionmentioning

confidence: 99%

Low algal diversity systems are a promising method for biodiesel production in wastewater fed open reactors

Bhattacharjee¹,

Siemann²

2015

ALGAE

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Planktivorous fish which limit zooplankton grazing have been predicted to increase algal biodiesel production in wastewater fed open reactors. In addition, tanks with higher algal diversity have been predicted to be more stable, more productive, and to more fully remove nutrients from wastewater. To test these predictions, we conducted a 14-week experiment in Houston, TX using twelve 2,270-L open tanks continuously supplied with wastewater. Tanks received algal composition (monocultures or diverse assemblage) and trophic (fish or no fish) treatments in a full-factorial design. Monocultures produced more algal and fatty acid methyl ester (FAME) mass than diverse tanks. More than 80% of lipids were converted to FAME indicating potentially high production for conversion to biodiesel (up to 0.9 T ha -1 y -1). Prolific algal growth lowered temperature and levels of total dissolved solids in the tanks and increased pH and dissolved oxygen compared to supply water. Algae in the tanks removed 91% of nitrate-N and 53% of phosphorus from wastewater. Monocultures were not invaded by other algal species. Fish did not affect any variables. Our results indicated that algae can be grown in open tank bioreactors using wastewater as a nutrient source. The stable productivity of monocultures suggests that this may be a viable production method to procure algal biomass for biodiesel production.

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“…Nutrient removal potential of 13 microalgal strains in treated domestic wastewater was determined by Sydney et al (2011). They reported that Botryococcus braunii removed 79.63 % of the nitrogen and 100 % phosphorus from treated domestic wastewater in 14 days.…”

Section: Use Of Municipal Wastewatermentioning

confidence: 99%

Phycoremediation of wastewaters: a synergistic approach using microalgae for bioremediation and biomass generation

Renuka

Sood

Prasanna

et al. 2014

Int. J. Environ. Sci. Technol.

167

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Discharge of untreated domestic and industrial wastewater into aquatic bodies is posing a serious eutrophication threat, leading to a slow degradation of the water resources. A number of physical, chemical and biological methods have been developed for the treatment of wastewaters; among these, the use of microalgae is considered as a more eco-friendly and economical approaches. Microalgae are versatile organisms which perform multiple roles in the environment-bioremediation of wastewater, gleaning of excess nutrients and in turn, generate valuable biomass which finds applications in the food, biofuel and pharmaceutical industries. They are currently being utilized to reduce the high nutrient load (especially N and P) from wastewaters, which fulfill the growth requirements of microalgae, making it a suitable cultivation medium for biomass production. The present review represents a comprehensive compilation of reports on microalgal diversity of wastewaters, followed by a critical overview of their utilization, suitability and potential in bioremediation vis-a-vis biomass production. This review also emphasizes the superiority of polyalgal and consortial approaches in wastewater treatment, as compared to the use of unialgal inocula, besides providing useful pointers for future research needs in this area.

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Screening of microalgae with potential for biodiesel production and nutrient removal from treated domestic sewage

Cited by 234 publications

References 6 publications

Effects of Light Intensity on the Growth and Lipid Accumulation of Microalga Scenedesmus sp. 11-1 Under Nitrogen Limitation

Effects of Light Intensity on the Growth and Lipid Accumulation of Microalga Scenedesmus sp. 11-1 Under Nitrogen Limitation

Low algal diversity systems are a promising method for biodiesel production in wastewater fed open reactors

Phycoremediation of wastewaters: a synergistic approach using microalgae for bioremediation and biomass generation

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