Abstract
Iron oxide modified filter media was prepared and the content of the iron oxide on the surface, alkaline and antacid of iron oxide, the adsorption kinetics and isotherms were studied. Results showed the surface content of iron oxide calculated as Fe is 5.604 mg/g and the surface of iron oxide is stable. The adsorption of As (III) using iron oxide modified filter media fitted the second-order reaction model, and the adsorption process can be well described with the Langmuir isotherm equation. It means that this adsorption is single-molecule layer adsorption.
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