| 초록 |
As excessive phosphate causes eutrophication and destroys the quality of water environment, more efficient methods for phosphate removal when it compared with present methods should be developed. For this reason, hydrotalcite which has lots of charged ions was applied to remove phosphate in wastewater. To improve its adsorption capacity, hydrotalcite was modified with sulfate onto surface. It was supposed that sulfate ion improves the phosphate adsorption capacity through ion exchange. Hydrotalcite was synthesized using powder form and also transformed to ball-type. Synthesized materials in this method were coated with sulfate. To determine each phosphate adsorption capacity of hydrotalcite and modified one, equilibrium and kinetic tests were conducted. Synthesized powder and ball-type hydrotalcite were compared each other. |
