Influence of microalgal N and P composition on wastewater nutrient remediation
Open accessAbstract
Microalgae have demonstrated the ability to remediate wastewater nutrients efficiently, with methods to further enhance performance through species selection and biomass concentration. This work evaluates a freshwater species remediation characteristics through analysis of internal biomass N:P (nitrogen:phosphorus) and presents a relationship between composition and nutrient uptake ability to assist in species selection. Findings are then translated to an optimal biomass concentration, achieved through immobilisation enabling biomass intensification by modifying bead concentration, for wastewaters of differing nutrient concentrations at hydraulic retention times (HRT) from 3 h to 10 d. A HRT <20 h was found suitable for the remediation of secondary effluent by immobilised Scenedesmus obliquus and Chlorella vulgaris at bead concentrations as low as 3.2 and 4.4 bead·mL(-1). Increasing bead concentrations were required for shorter HRTs with 3 h possible at influent concentrations <5 mgP L(-1).
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An N:P ratio ranging between 8:1 and 45:1 is an important macronutrient requirement for freshwater microalgae cultivation.
“Other study [92] suggested N:P ratio, ranging between 8:1 and 45:1, is an important macronutrient requirement for freshwater microalgae cultivation.”
From Challenges and Opportunities to Increase Economic Feasibility and Sustainability of Mixotrophic Cultivation of Green Microalgae of the Genus Chlorella (2022) · cites this paper as [92]
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References 40 · Cited by 179
Research works printed but not linked: 3
- Oh-Hama, T., Miyachi, S., 1988. Chlorella. In: Borowitzka, M.A., Borowitzka, L.J. (Eds.), Microalgal Biotechnology. Cambridge University Press, Cambridge, pp. 3e26.
- Redfield, A.C., 1934. On the Proportions of Organic Derivatives in Sea Water and Their Relation to the Composition of Plankton. James Johnstones Memorial, pp. 176e192.
- Reynolds, C., 2006. Ecology of Phytoplankton. Cambridge University Press, Cam- bridge, p. 550.
- Authors
- Whitton, R., Le Mével, A., Pidou, M., Ometto, F., Villa, R., & Jefferson, B.
- Affiliations
- Cranfield University (GB)
- Linköping University (SE)
- Corresponding author
- Jefferson, Bruce
- Venue
- Water Research
- Publisher
- Elsevier BV
- Published
- 2016-03
- Volume
- 91
- Pages
- 371-378
- ISSN
- 0043-1354 (ISSN-L)
- OpenAlex
- W2227562444
- Cited by
- 179
- References
- 40
- Citations by year
- 2026: 8 · 2025: 14 · 2024: 16 · 2023: 21 · 2022: 18 · 2021: 11 · 2020: 32 · 2019: 24 · 2018: 24 · 2017: 9 · 2016: 2
- FWCI
- 5.33
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Locations
- Water Research (publishedVersion, cc-by)
- PubMed (publishedVersion)
- HAL (submittedVersion)
- CERES (Cranfield University) (submittedVersion, cc-by)
- Funders
- Engineering and Physical Sciences Research Council
- STREAM Industrial Doctorate Centre (EP/L015412/1)
- Topics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
- Physical Sciences › Environmental Science › Environmental Chemistry › Aquatic Ecosystems and Phytoplankton Dynamics
- Physical Sciences › Environmental Science › Pollution › Wastewater Treatment and Nitrogen Removal
- Keywords
- microalgae, N:P ratio, Scenedesmus obliquus, Chlorella vulgaris, biomass concentration, hydraulic retention time, secondary effluent, nutrient uptake, species selection
- MeSH terms
- Adaptation, Physiological, Biodegradation, Environmental, Nitrogen, Phosphorus, Waste Disposal, Fluid, Water Pollutants, Chemical, Bioreactors, Scenedesmus, Chlorella vulgaris, Microalgae, Wastewater
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