Apparatus for purifying wastewater and method thereof

摘要

The present inventions relates to an apparatus for purifying wastewater and a method thereof, which comprises: a stirring part to make bubbles impregnated into floc through high speed stirring by adding floc forming materials to influent and stirring them; an air supply part to supply air to the stirring part to make more bubbles impregnated; a pumping part to conduct pressurized conveying of the floc included treatment water; a cyclone part to separate high density floc to downstream and treatment water with low density floc to upstream from the pressurized treatment water; and a flotation part to separate floc from the treatment water with floc supplied from the cyclone part. Therefore, the present invention have an effect that it is possible to improve purification speed of wastewater and obtain good quality of purified water.

主权项

1. An apparatus for purifying wastewater comprising:
an influent measurement part for measuring turbidity of influent to be purified; a stirring part connected to the influent measurement part receiving the influent, stirring the influent, wherein floc forming materials are added, to form flocs in the influent and to impregnate bubbles into the flocs; an air supply part supplying air to the stirring part to impregnate more bubbles in the flocs; a pumping part connected to the stirring part pressurizing the influent including flocs; a treatment water selection part installed between the stirring part and the pumping part; a cyclone part connected to the pumping part including an upstream and a downstream and separating the pressurized influent including flocs into an influent including high density flocs to be sent to the downstream and influent including low density flocs to be sent to the upstream; and a flotation part connected to the treatment water selection part and the upstream of the cyclone part, wherein the treatment water selection part discharges the influent with a higher turbidity value than a standard turbidity value from the stirring part to the pumping part and discharges the influent with a lower turbidity value than a standard turbidity value from the stirring part to the flotation part on the basis of the turbidity measurement by the influent measurement part, and wherein the flotation part receives the influent with the lower turbidity value than the standard turbidity value and the influent including low density flocs from the cyclone part and separates low density flocs from the influent with the lower turbidity value than the standard turbidity value and the influent including low density flocs from the cyclone part.