Calcium Carbonate Mineralization of Microalgae.

ABSTRACT: Biological substrates catalyze the nucleation and growth of sparingly soluble salts however, the underlying mechanism is largely unknown. In the present study, the growth of calcium carbonate (CaCO₃), on Acutodesmus obliquus (AO) microalgae was investigated. The test microalgae favored the growth of CaCO₃ from solutions supersaturated with respect to calcite (7.94 < SR_calcite < 104.71). The precipitation of calcite on AO was not preceded by measurable induction times, and the rates of calcite crystal growth were higher for higher microalgae cell concentrations. The presence of the microalgae cultivation medium and illumination of the supersaturated solutions accelerated the precipitation of CaCO₃, increasing the rate by 75% in compar

SUBMITTER: Natsi PD 

PROVIDER: S-EPMC9589979 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature