Effect of Glucose Loading on the Growth Behavior of Chlorella vulgaris and Heterotrophic Bacteria in Mixed Culture

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dc.creatorMayo, Aloyce W.
dc.creatorNoike, Tatsuya
dc.date2016-05-25T09:03:14Z
dc.date2016-05-25T09:03:14Z
dc.date1994
dc.date.accessioned2018-03-27T08:40:58Z
dc.date.available2018-03-27T08:40:58Z
dc.descriptionFull text can be accessed at http://www.sciencedirect.com/science/article/pii/0043135494901848
dc.descriptionThe effect of glucose concentration on the growth of Chlorella vulgaris and heterotrophic bacteria in mixed culture was studied. Granular glucose was fed daily as a source of organic carbon to provide an input concentration ranging from 25ā€“700 mg/l. Growth rates of heterotrophic bacteria and algae increased with glucose loading rate but excessive loading rates were detrimental to the survival of the algae and bacteria. The maximum specific growth rates for the algae and bacteria were 1.58 and 1.70 dāˆ’1, respectively. However, the saturation constants were significantly different with values of 27 and 174 mg/l for bacteria and algae, respectively. Under anaerobic conditions, bacterial density and algae growth were significantly affected by accumulation of volatile fatty acids (VFA). Although in low glucose loaded reactors, pH reached as high as 10.6, no significant effect of pH was observed on the survival of Chlorella vulgaris and heterotrophic bacteria. Inorganic carbon production increased with increasing glucose loading rate. When volatile fatty acids accumulated in anaerobic reactors, pH dropped resulting in a shift of equilibrium between H2CO3, HCO3āˆ’ and CO32āˆ’ in favor of H2CO3 production, most of which was released as CO2(g) to the atmosphere.
dc.identifierMayo, A.W. and Noike, T., 1994. Effect of glucose loading on the growth behavior of Chlorella vulgaris and heterotrophic bacteria in mixed culture. Water Research, 28(5), pp.1001-1008.
dc.identifierhttp://hdl.handle.net/20.500.11810/2238
dc.identifier10.1016/0043-1354(94)90184-8
dc.identifier.urihttp://hdl.handle.net/20.500.11810/2238
dc.languageen
dc.publisherElsevier
dc.subjectHeterotrophic bacteria
dc.subjectChlorella vulgaris
dc.subjectGlucose loading rate
dc.subjectGrowth rate
dc.subjectOxidation ponds
dc.titleEffect of Glucose Loading on the Growth Behavior of Chlorella vulgaris and Heterotrophic Bacteria in Mixed Culture
dc.typeJournal Article

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