Twinning foR indUstrial SustainabiliTy

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Indoor Air Quality Improvement Using Nature-Based Solutions: Design Proposals to Greener Cities

Publication . Mata, Teresa M.; Oliveira, Gisela M.; Monteiro, Helena; Silva, Gabriela Ventura; Caetano, Nídia; Martins, António A.

Low indoor air quality is an increasingly important problem due to the spread of urbanization. Because people spend most of their time inside, poor indoor air quality causes serious human health issues, resulting in significant economic losses. In this work, the current state of affairs is presented and analyzed, focusing on the current problems and the available solutions to improve the quality of indoor air, and the use of nature-based solutions. These involve the cultivation of microalgae in closed photobioreactors. In these systems, photosynthetic organisms can capture CO2 and other pollutants generated in indoor environments, which they use to grow and develop biomass. Several possible layouts for the implementation of microalgae-based indoor air cleaning systems are presented, taking into account the systems that are currently available at a commercial scale. A critical analysis of the microalgae indoor purification systems is presented, highlighting their advantages and disadvantages, and suggesting potential improvements and future lines of research and development in the area

2021Journal article

Open access