Modeling and improving arrayed microalgal biofilm attached culture system.

Bioresour Technol

Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota-Twin Cities, Saint Paul, MN 55108, USA. Electronic address:

Published: July 2021

AI Article Synopsis

  • A microalgal biofilm-attached system presents a promising cultivation method with benefits like higher biomass productivity, easier harvesting, and reduced water usage.
  • This research has created and validated a microalgae growth model that can accurately predict growth in both single and arrayed biofilm systems.
  • The study identifies how structural parameters and light conditions significantly impact the system's performance while also addressing the model's limitations and potential for future improvements.

Article Abstract

A microalgal biofilm-attached-system is an alternative cultivation method, that offers potential advantages of improved biomass productivity, efficient harvesting, and water saving. These biofilm systems have been widely tested and utilized for microalgal biomass production and wastewater treatment. This research a microalgal growth model for the biofilm attached culture system has been developed and experimentally validated, both, in single and arrayed biofilm systems. It has been shown that the model has the capability to accurately describe microalgae growth. Moreover, via the model simulation, it was observed that system structural parameters, light dilution rate, and light intensity significantly affected the culture performance. The limitations, and improvement aspects of the model, are also discussed in this study. To our knowledge, this is the first time that a mathematical model for an arrayed-biofilm-attached-system has been developed and validated. This model will certainly be helpful in the design, improvement, optimization, and evaluation of the biofilm-attached-systems.

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Source
http://dx.doi.org/10.1016/j.biortech.2021.124931DOI Listing

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