Role of calcium carbonate in the process of heavy metal biosorption from solutions: synergy of metal removal mechanisms.

ABSTRACT: The effect of calcium carbonate on the removal efficiency of cations of the selected heavy metals Cu, Zn and Pb from aqueous solutions using various biosorbents (BS) was investigated under laboratory static conditions. The main mechanism of biosorption of heavy metal cations is ion exchange, whereas the reaction with calcium carbonate results in precipitation of poorly soluble carbonates and hydroxides of the examined heavy metals. Studies conducted under static conditions have shown that the effect of Cu and Zn cations removal from solutions is better when using a mixture of BS and CaCO₃ as compared to the effect of process, in which these two components were used separately. Removal efficiency for Cu and Zn has been shown to increase from 20 to 50% depending on the BS used. Fo

SUBMITTER: Wierzba S 

PROVIDER: S-EPMC9587271 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature