METHOD FOR TREATING WASTE WATER CONTAINED HEAVY METAL

摘要

PURPOSE: A processing method of wastewater containing heavy metal is provided to reduce processing costs by using reducing slag which is a by-product produced in an electric furnace steel making process and to stably process heavy metal in wastewater. CONSTITUTION: A processing method of wastewater containing heavy metal comprises the following steps: transferring the wastewater to a reaction tank(10); agitating granule sized reducing slag 1mm or less toward the reaction tank; precipitating a heavy metal through adsorption and substitution; precipitating sludge in the slag by discharging the wastewater to a settling tank(20); and discharging supernatant through a filtering machine.