Activated alumina for defluorination in wastewater treatment How much does it cost to customize industrial grade high-purity defluorination activated alumina? Activated alumina is a specially treated alumina material with high specific surface area, porosity, and excellent adsorption performance. It is prepared by physical or chemical methods and widely used in gas and liquid purification, catalyst support, and various adsorption processes. The activity of activated alumina mainly comes from its rich surface structure and pore system, which provide a large number of active sites for adsorption and catalytic reactions. The chemical properties of activated alumina are stable and insoluble