Unlocking the Intertwined Effects of CO2 Concentrations on Microalgae Structure in Wastewater Treatment | ||||
| Egyptian Journal of Aquatic Biology and Fisheries | ||||
| Article 24, Volume 29, Issue 3, May and June 2025, Page 363-390 PDF (1.3 MB) | ||||
| DOI: 10.21608/ejabf.2025.426903 | ||||
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| Author | ||||
| El-Sheekh et al. | ||||
| Abstract | ||||
| This research, conducted as part of our wastewater treatment project utilizing algal technology, analyzed how varying doses of carbon dioxide (CO₂) influence the structural dynamics of microalgae species. The study employed a factorial design experiment and batch culture systems, using Principal Coordinate Analysis (PCoA) and distance-based Redundancy Analysis (dbRDA) to assess changes in algal species composition in response to different CO₂ concentrations and physico-chemical variables. Primary-treated municipal wastewater was used as the growth medium. The results demonstrated that CO₂ plays a crucial role in shaping the composition and diversity of algal species during wastewater treatment. Moreover, we found that the performance of specific microalgal strains clearly depends on CO₂ concentration, highlighting the importance of tailored inoculation strategies. This research provides a foundation for developing algae-based predictive models, improving wastewater treatment methods and advancing more efficient and environmentally sustainable treatment systems. Incorporating eco-friendly algal technologies can significantly enhance and modernize wastewater management. | ||||
| Keywords | ||||
| CO2; Microalgae structure; Wastewater treatment; Batch systems | ||||
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