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Large Scale Cultivation of Microalgae: Open and Closed Systems
Jacqueline Jerney1, Kristian Spilling2
1Finnish Environment Institute, Helsinki, Finland. jacqueline.jerney@environment.fi.
Methods in Molecular Biology (Clifton, N.J.)
|February 27, 2018
Summary
Large-scale microalgae cultivation uses open or closed systems. Each method differs in operation, environmental vulnerability, and cost, impacting overall efficiency and feasibility for industrial applications.
Area of Science:
- Biotechnology
- Aquaculture
- Environmental Science
Background:
- Microalgae cultivation is crucial for sustainable production of biofuels, food, and pharmaceuticals.
- Large-scale cultivation requires efficient and cost-effective methods to be viable.
- Open and closed cultivation systems represent the primary approaches for industrial microalgae production.
Purpose of the Study:
- To introduce the main microalgae cultivation technologies.
- To compare the advantages and disadvantages of open and closed cultivation systems.
- To provide insights into selecting appropriate cultivation methods for large-scale microalgae production.
Main Methods:
- Review of existing literature on microalgae cultivation technologies.
- Comparative analysis of open and closed cultivation systems based on operational parameters.
- Discussion of system vulnerabilities, including contamination and environmental factors.
- Evaluation of economic aspects, encompassing building and operational costs.
Main Results:
- Open systems are generally less expensive to build but more vulnerable to contamination and environmental fluctuations.
- Closed systems offer better control over cultivation conditions, reducing contamination risks but incurring higher costs.
- Operational differences in cooling and gas exchange significantly impact system performance.
- Each system presents unique trade-offs between cost, control, and productivity.
Conclusions:
- The choice between open and closed cultivation systems depends on specific economic, environmental, and production goals.
- Optimizing operational parameters and mitigating vulnerabilities are key challenges for both systems.
- Further research may focus on hybrid systems or innovative designs to balance cost and control in microalgae cultivation.
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