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231224s2011 xx |||||o 00| ||eng c |
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|a 10.1111/j.1529-8817.2010.00934.x
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|a eng
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1 |
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|a Perez-Garcia, Octavio
|e verfasserin
|4 aut
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|a ORGANIC CARBON SUPPLEMENTATION OF STERILIZED MUNICIPAL WASTEWATER IS ESSENTIAL FOR HETEROTROPHIC GROWTH AND REMOVING AMMONIUM BY THE MICROALGA CHLORELLA VULGARIS(1)
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|c 2011
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|a Text
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|a ƒaComputermedien
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|a Date Completed 30.03.2016
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|a Date Revised 29.03.2016
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2010 Phycological Society of America.
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|a Heterotrophic growth of the microalga Chlorella vulgaris Beij. in synthetic as well as sterilized municipal wastewater of a nonindustrialized city was measured. The city wastewater contained high levels of ammonium and nitrate, medium levels of phosphate, and low levels of nitrite and organic molecules and could not support heterotrophic growth of C. vulgaris. Evaluation of 11 known carbon sources for this microalga that were added to standard synthetic wastewater containing the same levels of nitrogen and phosphorus as the municipal wastewater revealed that the best carbon sources for heterotrophic growth were Na-acetate and d-glucose. These provided the highest growth rates and the largest removal of ammonium. Growth increased with concentration of the supplement to an optimum at 0.12 M Na-acetate. This carbon source was consumed completely within 10 d of incubation. Higher concentrations inhibited the growth of C. vulgaris. The microalgal populations under heterotrophic growth conditions were one level of magnitude higher than that under autotrophic growth conditions that served as a comparison. No growth occurred in the dark in the absence of a carbon source. Na-acetate was superior to d-glucose. In municipal wastewater, when Na-acetate or d-glucose was added, C. vulgaris significantly enhanced ammonium removal under heterotrophic conditions, and its capacity was equal to ammonium removal under autotrophic growth conditions. This study showed that sterilized wastewater can be treated by C. vulgaris under heterotrophic conditions if supplemented with the appropriate organic carbon source for the microalgae
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|a Journal Article
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|a Chlorella
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|a heterotrophic growth
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|a microalgae
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|a municipal wastewater
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|a wastewater treatment
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|a Bashan, Yoav
|e verfasserin
|4 aut
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|a Esther Puente, Maria
|e verfasserin
|4 aut
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|i Enthalten in
|t Journal of phycology
|d 1966
|g 47(2011), 1 vom: 15. Feb., Seite 190-9
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|x 1529-8817
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|g volume:47
|g year:2011
|g number:1
|g day:15
|g month:02
|g pages:190-9
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