AN APPARATUS REMOVING HEAVY METALS IN WASTE WATER

摘要

PURPOSE: A heavy metal reducing device is provided to remove heavy metals in wastewater, and to improve inconvenience for treating waste by using stainless steel-making slag which is a by-product for making slag to recycle the stainless steel-making slag. CONSTITUTION: A heavy metal reducing device fills stainless steel-making slag(11) in a filter as fillings to remove heavy metals contained in wastewater. The stainless steel-making slag is pulverized to a diameter of 1mm or less. The stainless steel-making slag is heat-treated after being processed with a sodium hydroxide solution. The stainless steel-making slag is heat-treated for 12 hours at 300 degrees.