POROUS CARRIER HAVING HIGH ADSORPTION AND HIGH MICROORGANISM IMMOBILIZATION CAPACITY FOR TREATING WASTEWATER AND PROCESS FOR MANUFACTURING THE SAME

摘要

PURPOSE: To provide a porous carrier which has high adsorption capacity of cationic contaminants such as ammonia nitrogen, heavy metal ions and the like and shows physical and chemical stability when being used underwater during a long period of time, and a process for manufacturing the same. CONSTITUTION: The process comprises the steps of: (a) after mixing 30-60 wt.% of coal fly ash or slag, 10-30 wt.% of sodium silicate, 5-20 wt.% of glass residues, and 5-50 wt.% of carbonate or organic polymer powder with water, molding the mixture with an extruder; (b) sintering the molded carrier at the temperature of 400-1,000 deg.C to prepare a carrier; and (c) performing a hydrothermal reaction of the carrier using an alkaline aqueous solution at the reaction temperature of 60-110 deg.C for 1-10 hours.