Please use this identifier to cite or link to this item: https://hdl.handle.net/10321/2960
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dc.contributor.authorWahal, Shantanuen_US
dc.contributor.authorViamajala, Sridharen_US
dc.date.accessioned2018-05-15T06:47:59Z-
dc.date.available2018-05-15T06:47:59Z-
dc.date.issued2016-06-23-
dc.identifier.citationWahal, S. and Viamajala, S. 2016. Uptake of inorganic and organic nutrient species during cultivation of a Chlorella Isolate in Anaerobically digested dairy waste. Biotechnology Progress. 32(5): 1336-1342.en_US
dc.identifier.issn8756-7938 (print)-
dc.identifier.issn1520-6033 (online)-
dc.identifier.urihttp://hdl.handle.net/10321/2960-
dc.description.abstractA natural assemblage of microalgae from a facultative lagoon system treating municipal wastewater was enriched for growth in the effluents of an anaerobic digester processing dairy waste. A green microalga with close resemblance to Chlorella sp. was found to be dominant after multiple cycles of sub-culturing. Subsequently, the strain (designated as LLAI) was isolated and cultivated in 203 diluted digester effluents under various incident light intensities (255–1,100 mmoles m22 s21) to systematically assess growth and nutrient utilization. Our results showed that LLAI production increased with increasing incident light and a maximum productivity of 0.34 g L21 d21 was attained when the incident irradiance was 1,100 mmoles m22 s21. Lack of growth in the absence of light indicated that the cul-tures did not grow heterotrophically on the organic compounds present in the medium. How-ever, the cultures were able to uptake organic N and P under phototrophic conditions and our calculations suggest that the carbon associated with these organic nutrients contributed significantly to the production of biomass. Overall, under high light conditions, LLAI cul-tures utilized half of the soluble organic nitrogen and >90% of the ammonium, orthophos-phate, and dissolved organic phosphorus present in the diluted waste. Strain LLAI was also found to accumulate triacylglycerides (TAG) even before the onset of nutrient limitation and a lipid productivity of 37 mg-TAG L21 d21 was measured in cultures incubated at an inci-dent irradiance of 1,100 mmoles m22 s21. The results of this study suggest that microalgae isolates from natural environments are well-suited for nutrient remediation and biomass pro-duction from wastewater containing diverse inorganic and organic nutrient speciesen_US
dc.format.extent7 pen_US
dc.language.isoenen_US
dc.publisherAmerican Institute of Chemical Engineersen_US
dc.relation.ispartofBiotechnology progress (Online)en_US
dc.subjectMicroalgaeen_US
dc.subjectChlorellaen_US
dc.subjectAnaerobic digesteren_US
dc.subjectAnimal wasteen_US
dc.subjectNutrienten_US
dc.titleUptake of inorganic and organic nutrient species during cultivation of a Chlorella Isolate in Anaerobically digested dairy wasteen_US
dc.typeArticleen_US
dc.publisher.urihttps://onlinelibrary.wiley.com/doi/epdf/10.1002/btpr.2313en_US
dc.dut-rims.pubnumDUT-005788en_US
dc.identifier.doi10.1002/btpr.2313-
local.sdgSDG05-
local.sdgSDG11-
local.sdgSDG06-
item.grantfulltextopen-
item.cerifentitytypePublications-
item.fulltextWith Fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.languageiso639-1en-
item.openairetypeArticle-
Appears in Collections:Research Publications (Water and Wastewater Technology)
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