TREATMENT SYSTEM FOR FOOD WASTES, CAPABLE OF REDUCING COD FOR DISCHARGE OF A DRAINAGE AND IMPROVING THE QUALITY OF TREATED WATER

摘要

PURPOSE: A treatment system for food wastes is provided to reduce treatment costs and prevent contamination by discharging treated water to a drainage.;CONSTITUTION: A treatment system for food wastes includes a water tank(11), a solid liquid separation tank(12), an aeration tank(13), NAC systems(14,16,18,20,22), compression floating tanks(15,19), an oxidation tank(17), a biological treatment tank(21), a settling tank(23), and a water treatment tank(24). The water tank temporarily stores the water. The solid liquid separation tank receives the water, separates sludge from liquid, and collects the sludge. The aeration tank aerates liquid by supplying reactive gas. A first NAC system supplies ozone and oxygen to the aeration tank. The compression floating tank supplies micro bubbles by receiving the liquid which is aerated and collects the sludge remaining in the liquid. A second NAC system supplies the oxygen and ozone to the first compression floating tank. The oxidation tank receives liquid and oxidizes the non-reacted sludge. A third NAC system supplies the oxygen and ozone to the oxidation tank. A second compression floating tank supplies the micro bubbles. The second compression floating tank collects the sludge remaining in the liquid. A fourth NAC system supplies the reactive gas to the second compression floating tank. The biological treatment tank biologically treats the liquid. A fifth NAC system supplies oxygen to the biological treatment tank. The settling tank settles the liquid which is biologically treated. The water treatment tank returns the sludge into the first and second compression floating tank.;COPYRIGHT KIPO 2011