Abstract

This study estimates the influence of five Al2O3 nanopowders on the growth of Scenedesmus quadricauda depending on the physical and chemical properties of the alumina nanoparticles and on the concentration of the nanopowder. The agglomeration and crystallisation levels of the alumina nanopowders as well as the zeta potential, the conductivity and the pH of nanopowders-containing growth media are considered. The strongest algal growth inhibiting effect was accompanied by the highest degree of agglomeration and the highest crystallisation level as well as the smallest specific surface area.

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