EFFECT OF MODIFIED FLY ASH PREPARED BY CATALYTIC COMBUSTION FURNACE ON Ca2+ AND Mg2+ IN WATER

Abstract

Catalytic combustion can inhibit the formation of CO and NOx, and greatly reduce the concentration of unburned alkanes. The hardness of tap water in Beijing is too high. In order to test whether the modified fly ash can reduce its hardness, clay, shale and fly ash bricks were prepared by catalytic combustion furnace. The results show that the fly ash brick has a great influence on Ca 2+ and Mg 2+ in water, increasing Ca 2+ concentration by 59.96% and decreasing Mg 2+ concentration by 41.22%. Thus modified fly ash could not reduce hardness of water but could be used as an Mg 2+ adsorbent.