Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection

Permanent URI for this collectionhttps://hdl.handle.net/11147/7148

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Language: search.filters.language.enSubject: search.filters.subject.Algal growth

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  • Book Part
    Micro-environment Establishment for Promoting Diverse Algal Growth
    (Springer Science and Business Media Deutschland GmbH, 2024) Sözmen,A.B.
    Algae offer sustainable sources for water, food, and energy production. They can remove pollutants and pathogens from wastewater and provide potable water. Also they can also be used in creating dietary supplements, functional foods, and biofuels. An optimal micro-environment is essential to promote their growth and productivity in specific applications, and for this purpose it is important to take various physical factors such as light, temperature, hydrodynamics, agitation, and shear stress and chemical factors such as nutrients, pH, and dissolved oxygen into consideration. These factors affect algae growth and productivity, both on their own and by a combinational affect. It is important to properly monitor and manage these factors to ensure optimal algae growth and productivity. This chapter provides an overview of physical and chemical factors that influence growth of algae, empha-sizing the importance of micro-environment management in promoting sustainable algae-based industries. It also includes the strategies that can be applied for this purpose, which covers the cultivation techniques and methods to manage cultivation microenvironment in terms of pH, nutrients, and dissolved oxygen. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.
  • Article
    Citation - WoS: 8
    Citation - Scopus: 9
    Optimization of the Algal Species Chlorella Miniata Growth: Mathematical Modelling and Evaluation of Temperature and Light Intensity Effects
    (Elsevier, 2022) Sözmen, Alper Baran; Ata, Ayça; Övez, Bikem
    Growth of Chlorella miniata, a green microalga was investigated during this study under various temperature and light intensity values with the purpose of determining growth rate changes of the microalgae with cultivation parameters, experiments were carried out using airlift photobioreactors with a study volume of 6 L. Culturing conditions were between 66 and 385 μmol photon m−2 s−1 and between 14 and 30 °C for light intensity and ambient temperature, respectively. Acquired data were then used to test various mathematical models for coherency with experimental results. Aiba Model for light intensity and Skewed Normal Distribution Model for temperature parameters performed superior compared to the rest of the mathematical models used during the study. Utilizing both mathematical models a novel model was deduced to express effects of both light intensity and temperature parameters in combination on algal growth. Then the developed model was used to calculate the optimum growth condition of the species. The proposed mathematical model showed good coherency with experimental data and an average relative error of 1.97% for both temperature and light intensity effects on algal growth. The theoretical optimum temperature and light intensity for the maximum specific growth rate were calculated to be 22.43 °C and 291.5 μmol photon m−2 s−1 respectively.