Flotation using sodium dodecyl sulphate and sodium lauroyl isethionate for rapid dewatering of Mg(OH)₂ radwaste suspensions.

ABSTRACT: Mg(OH)₂ suspensions were floated utilising sodium dodecyl sulphate (SDS) and sodium lauroyl isethionate (SLI) collectors, for rapid dewatering of radwaste suspensions. Freundlich adsorption isotherms were first used to compare the adsorption densities of SDS and SLI on Mg(OH)₂ surfaces, to determine the maximum monolayer coverage capacity, and were found to be 0.11 μmol m^-2 at a dosed concentration of 172 μM for SDS and 0.05 μmol m^-2 at a dosed concentration of 188 μM for SLI. The natural and salt induced coagulation kinetics of Mg(OH)₂ were examined using static light scattering, where the influence of collector adsorption on particle size distributions was also investigated, to probe potential hydrodynamic limitations of flotation. P

SUBMITTER: Lockwood APG 

PROVIDER: S-EPMC9033463 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature