In this research. The purpose of developing synthetic materials for arsenics removal. Synthetic materials are prepared with a mixture of iron oxide and manganese oxide. which is distributed in the anion exchange material. Because it is attracting between negative charge of arsenic and positive charge of functional group in resin ( R4N+). So use an ethanol to reduce force of the charge between iron oxide and functional group in resin ( R4N+). The study found that ethanol better than DI . Adsorption behavior of arsenic in comparison with Langmuir graph is maximum value absorb of arsenic at 350 mg/g. The effects of pH, which was found at pH more than 7 removal efficiency of arsenic will decrease.
When completing the Elimination of arsenic , has arsenic removal by precipitation with iron.** And learn more about leaching of arsenic by the Toxicity Characteristic Leaching Procedure (TCLP). The leaching of arsenic through the standard** of Environmental Protection Agency - EPA. It can be disposed of in a landfill. And not classified as a hazardous waste. From all these experiments, we apply this method in the removal of arsenic in the work.