SYSTEM AND METHOD FOR RECYCLING STEELWASTEWATER

摘要

The present invention relates to a treatment system and a treatment method for recycling steel wastewater. More particularly, the present invention relates to a treatment method for recycling steel wastewater, comprising the steps of: lowering the pH of the steel wastewater by introducing the steel wastewater into a pH adjustment part; filtering the wastewater, which has been discharged from the pH adjustment part, by introducing the wastewater into a membrane filtration part; generating final process water by introducing the wastewater, which has been filtered by the membrane filtration part, into an RO filtration part; introducing concentrate into a concentrate treatment part via the RO filtration part, and discharging RO produced water for recycling; and evaporating the concentrate, which has been introduced into the concentrate treatment part, to combine the obtained steam with the produced water of the RO filtration part again.