Couplage de la capture du carbone d’une centrale électrique avec des étangs ouverts semi-automatisés pour la culture de microalgues

Overview

This protocol describes a semi-automatic system for cultivating microalgae using carbon dioxide captured from flue gas in natural gas power plants. The system utilizes a pH sensor for flue gas injection control and monitors microalgae growth through real-time optical density measurements.

Key Study Components

Area of Science

• Microalgae cultivation
• Carbon capture technology
• Environmental biotechnology

Background

• Microalgae can be cultivated using carbon dioxide from industrial emissions.
• Flue gas from power plants is a potential carbon source for algal growth.
• Real-time monitoring of algal growth is crucial for optimizing cultivation.
• Open raceway ponds are a cost-effective method for large-scale microalgae production.

Purpose of Study

• To develop a system that captures flue gas for microalgae cultivation.
• To monitor the growth of microalgae in real-time.
• To explore the potential of using various algae species for carbon capture.

Methods Used

• Installation of a fuel hose to capture flue gas before it is released into the atmosphere.
• Use of a water trap and condenser to remove moisture from the flue gas.
• Connection of multiple sensors (optical density, dissolved oxygen, temperature, pH, electroconductivity) to a data logger.
• Real-time monitoring of algal growth through optical density measurements at specific wavelengths.

Main Results

• The system effectively captures carbon from flue gas for microalgae growth.
• Real-time monitoring allows for precise control of cultivation conditions.
• Potential for cultivating various algae species demonstrated.
• System shows promise for reducing industrial carbon emissions.

Conclusions

• The developed system is a viable method for utilizing flue gas in microalgae cultivation.
• Real-time monitoring enhances the efficiency of algal growth.
• This approach contributes to carbon capture and sustainable biofuel production.

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