Granulation of Bismuth Oxide by Alginate for Efficient Removal of Iodide in Water.

ABSTRACT: The granulation of bismuth oxide (BO) by alginate (Alg) and the iodide adsorption efficacy of Alg-BO for different initial iodide concentrations and contact time values were examined. The optimal conditions for Alg-BO granulation were identified by controlling the weight ratio between Alg and BO. According to the batch iodide adsorption experiment, the Alg:BO weight ratio of 1:20 was appropriate, as it yielded a uniform spherical shape. According to iodide adsorption isotherm experiments and isotherm model fitting, the maximum sorption capacity (q_m) was calculated to be 111.8 mg/g based on the Langmuir isotherm, and this value did not plateau even at an initial iodide concentration of 1000 mg/L. Furthermore, iodide adsorption by Alg-BO occurred as monolayer adsorption by

SUBMITTER: Kim TH 

PROVIDER: S-EPMC9603213 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature