| US 7,550,086 B2 | ||
| Advanced treatment method of ethanolamine-wastewater based on physico-chemical and biological coupling process | ||
| In hyoung Rhee, 202-1404 Daelim Handle Apt. 545, Sinbu-dong, Cheonan-si, Chungcheongnam-do (Korea, Republic of); Dae chul Cho, 111-201- Daedong Apt., Buldang-dong, Cheonan-si, Chungcheongnam-do (Korea, Republic of); Byung gi Park, 404 Jangwon villa, 386 Yangjae-dong, Seocho-gu, Seoul (Korea, Republic of); Hyun kyoung Ahn, 528-8 Deungchon 2-dong, Gangseo-gu, Seoul (Korea, Republic of); Hyun jun Jung, 750-17 Jowon-dong, Jangan-gu, Suwon-si, Gyeonggi-do (Korea, Republic of); Jun taek Hyun, 306-807 Woosung Mokryeon Apt., Beomgye-dong, Dongan-gu, Anyang-si, Gyeonggi-do (Korea, Republic of); Nam Soo Huh, 1197 Palborg-ri, Seo-myeon, Hongcheon-gun, Gangwon-do (Korea, Republic of); Mi hae Yoon, 291-24, Wongjong 1-dong, Ojeong-gu, Bucheon-si, Gyeonggi-do (Korea, Republic of); and Hyun kak Han, 530-1201 Walibong Hyundae Apt., Ssangyoung-dong, Cheonan-si, Chungcheongnam-do (Korea, Republic of) | ||
| Filed on Jul. 27, 2007, as Appl. No. 11/829,607. | ||
| Prior Publication US 2008/0179241 A1, Jul. 31, 2008 | ||
| Int. Cl. C02F 3/30 (2006.01) | ||
| U.S. Cl. 210—605 [210/615; 210/623; 210/631; 210/903] | 13 Claims |
| 1. An advanced treatment method of ethanolamine-containing wastewater comprising:
a. a physicochemical process comprising:
i. an ion-exchanging step where ethanolamine in wastewater is captured by a cation exchange resin filled within an ion exchange
resin tower; and
ii. a concentrating step where sodium hydroxide solution is transferred from a sodium hydroxide tank and air is passed through
the cation exchange resin to reduce the volume of the ethanolamine-containing wastewater; and
b. a biological process where the ethanolamine-containing wastewater concentrated through the physicochemical process is passed
through and treated by an anoxic tank, a first aerobic tank, and a second aerobic tank.
|