Oz Yasar, C., Fletcher, L. and Camargo-Valero, M.A. orcid.org/0000-0003-2962-1698 (2023) Effect of macronutrients (carbon, nitrogen, and phosphorus) on the growth of Chlamydomonas reinhardtii and nutrient recovery under different trophic conditions. Environmental Science and Pollution Research, 30 (51). pp. 111369-111381. ISSN 0944-1344
Abstract
More stringent discharge standards have led to the development of an alternative nutrient recovery system from wastewater. Microalgae cultivation in wastewater treatment works has presented considerable promise from the perspective of sustainable resource management. Growth kinetics models are useful tools to optimize nutrient recovery from wastewater by algal uptake. Therefore, this research aims to identify the growth kinetics of Chlamydomonas reinhardtii under both heterotrophic and phototrophic conditions with different nutrient concentrations that typify those found in wastewater treatment works. In addition, the effects of macronutrients (C, N, and P) on heterotrophic and phototrophic microalgae growth and nutrient recovery were studied. Greater specific growth rates were achieved under heterotrophic conditions than in phototrophic cultivation. The maximum specific growth rates and nutrient recovery efficiencies were achieved at 5 mg P L−1 under both heterotrophic and phototrophic growth conditions. Nitrate was the preferred form of nitrogen source under heterotrophic conditions, while nitrogen sources did not present any significant influences in the phototrophic cultivation. Specific growth rates reported for both heterotrophic and phototrophic microalgae at lower carbon concentrations (3.10 d−1 and 0.46 d−1, sequentially) were higher than those at higher carbon concentrations (1.95 d−1 and 0.22 d−1, respectively). C. reinhardtii presented an extreme capacity to adapt and grow at all experimental conditions tested in heterotrophic and phototrophic cultivations.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Keywords: | Chlamydomonas reinhardtii; Heterotrophic and phototrophic cultivation; Growth kinetics; Resource recovery; Wastewater |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 04 Mar 2024 16:08 |
Last Modified: | 13 Mar 2024 14:15 |
Status: | Published |
Publisher: | Springer |
Identification Number: | 10.1007/s11356-023-30231-2 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:209841 |