Journal
BIORESOURCE TECHNOLOGY
Volume 191, Issue -, Pages 346-349Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2015.05.070
Keywords
Ammonium uptake; Microalgae; Modeling; Temperature; Wastewater
Funding
- Spanish Ministry of Economy and Competitiveness (MINECO) [CTM2011-28595-C02-01/02]
- European Regional Development Fund (ERDF)
- Spanish Ministry of Science and Innovation [AP2009-4903]
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The effect of temperature on microalgal ammonium uptake was investigated by carrying out four batch experiments in which a mixed culture of microalgae, composed mainly of Scenedesmus sp., was cultivated under different temperatures within the usual temperature working range in Mediterranean climate (1534 degrees C). Ammonium removal rates increased with temperature up to 26 degrees C and stabilized thereafter. Ratkowsky and Cardinal temperatures models successfully reproduced the experimental data. Optimum (31.3 degrees C), minimum (8.8 degrees C) and maximum (46.1 degrees C) temperatures for ammonium removal by Scenedesmus sp. under the studied conditions were obtained as model parameters. These temperature-related parameters constitute very useful information for designing and operating wastewater treatment systems using these microalgae. (C) 2015 Elsevier Ltd. All rights reserved.
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