Modeling and improving arrayed microalgal biofilm attached culture system

Area of Science:

• Biotechnology
• Environmental Engineering
• Algal Cultivation

Background:

• Microalgal biofilm-attached systems offer advantages in biomass productivity, harvesting efficiency, and water conservation.
• These systems are widely used for microalgal biomass production and wastewater treatment.

Purpose of the Study:

• To develop and experimentally validate a microalgal growth model for single and arrayed biofilm-attached culture systems.
• To identify key parameters influencing culture performance in these systems.

Main Methods:

• Development of a mathematical model for microalgal growth in biofilm-attached systems.
• Experimental validation of the model using both single and arrayed biofilm systems.
• Simulation analysis to determine the impact of system parameters on culture performance.

Main Results:

• The developed model accurately describes microalgal growth in biofilm-attached systems.
• System structural parameters, light dilution rate, and light intensity were found to significantly affect culture performance.
• The model's limitations and potential improvements were discussed.

Conclusions:

• This study presents the first mathematical model for an arrayed-biofilm-attached-system.
• The validated model is valuable for the design, improvement, optimization, and evaluation of biofilm-attached systems for microalgal cultivation and wastewater treatment.