US 12,252,421 B2
System and method for treating waste water
Tae Wan Kim, Daejeon (KR); Yoon Hyuk Jang, Daejeon (KR); and Min Youb Kim, Daejeon (KR)
Assigned to SK Innovation Co., Ltd., Seoul (KR)
Filed by SK Innovation Co., Ltd., Seoul (KR)
Filed on Dec. 29, 2021, as Appl. No. 17/564,328.
Claims priority of application No. 10-2020-0187253 (KR), filed on Dec. 30, 2020.
Prior Publication US 2022/0204371 A1, Jun. 30, 2022
Int. Cl. C02F 1/78 (2023.01); C02F 1/00 (2023.01); G01N 33/18 (2006.01); C02F 101/30 (2006.01)
CPC C02F 1/78 (2013.01) [C02F 1/008 (2013.01); G01N 33/1806 (2013.01); C02F 2101/30 (2013.01); C02F 2201/782 (2013.01); C02F 2209/08 (2013.01); C02F 2209/23 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A wastewater treatment method comprising:
measuring a chemical oxygen demand (COD) of wastewater containing organic matter in real time;
calculating an amount of ozone associated with a concentration of the organic matter using the measured COD value; and
controlling a production of ozone of an ozone generator based on the calculated amount of ozone,
wherein the calculating of the amount of ozone comprises calculating the concentration of the organic matter contained in the wastewater through a correlation expression between the measured COD value and the concentration of the organic matter contained in the wastewater, which is previously derived to predict the concentration of the organic matter in the wastewater based on the COD value of the wastewater.