| Issue |
E3S Web of Conf.
Volume 559, 2024
2024 International Conference on Sustainable Technologies in Civil and Environmental Engineering (ICSTCE 2024)
|
|
|---|---|---|
| Article Number | 04032 | |
| Number of page(s) | 10 | |
| Section | Structural Engineering & Concrete Technology | |
| DOI | https://doi.org/10.1051/e3sconf/202455904032 | |
| Published online | 08 August 2024 | |
Optimization of Electrocoagulation-Flocculation for Chlorella Vulgaris Biomass Recovery Using Response Surface Methodology
1 Institute for Environment and Resources, Vietnam National University Ho Chi Minh City (VNU-HCM), Ho Chi Minh City, 700000, Vietnam.
2 Research and Development Institutes Advanced Agrobilogy, Nguyen Tat Thanh University, Ho Chi Minh City, 700000, Vietnam.
3 Key Laboratory of Advanced Waste Treatment Technology, Ho Chi Minh City University of Technology (HCMUT), Vietnam National University Ho Chi Minh (VNU-HCMC), Thu Duc City, Ho Chi Minh City, 700000, Vietnam.
4 Faculty of Environment and Natural Resources, Ho Chi Minh City University of Technology (HCMUT), Ho Chi Minh City, 700000, Vietnam.
5 Faculty of Environmental, Ho Chi Minh City University of Natural Resources and Environment, Ho Chi Minh City, 700000, Vietnam.
6 Faculty of Chemical Engineering and Food Technology, Nong Lam University, 700000, Ho Chi Minh City, Vietnam.
The issue of how to economically harvest and recover algal biomass has always been of concern to green wastewater treatment systems utilizing microalgal technology. This study explores the efficiency of biomass recovery from Chlorella Vulgaris using an electrocoagulation-flocculation method, aiming to optimize the environmentally friendly harvesting of algal biomass. Utilizing a response surface methodology (RSM) with a central composite design (CCD), the research investigates the impact of pH, current intensity, reaction time, and salinity on recovery efficiency. Optimal conditions were identified as a pH of 6.5, current intensity of 1.5A, reaction time of 20 minutes, and a salinity of 15ppt, achieving an optimal recovery efficiency of 84.36%. The findings underscore the significant influence of pH, where deviations from the optimum value substantially reduced efficiency. This study confirms that electrocoagulation is a viable and effective method for enhancing Chlorella Vulgaris biomass recovery, offering a sustainable alternative to traditional chemical flocculation methods by reducing dependency on chemical coagulants and minimizing production costs. The results provide a solid scientific basis for future enhancements in the sustainable industrial application of algae, promoting environmental protection and economic viability.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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