The Performance and Mechanism of a Mg-Al Double-Layer Oxide in Chloride ion Removal from an Aqueous Solution.

ABSTRACT: The increasing threat of chloride ions (Cl-) has led researchers to explore efficient removal technologies. Sewage treatment with a double-layer hydroxide/oxide (LDH/LDO) is receiving increasing attention. In this work, Mg-Al LDO adsorbents were produced by the calcination of the Mg-Al LDH precursor, which was constituted by improved coprecipitation. The influence of calcination temperature, calcination time, adsorbent dosage, Cl- initial concentration, contact time, and adsorption temperature on Cl- elimination was investigated systematically. The experimental results showed that a better porous structure endowed the Mg-Al LDO with outstanding adsorption properties for Cl-. The adsorption process was well matched to the pseudo-second-order kinetics model and the Freundlich model. Under op

SUBMITTER: Xu X 

PROVIDER: S-EPMC8912365 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature