The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 20, 2019
Filed:
Oct. 23, 2017
Korea Institute of Science and Technology, Seoul, KR;
Samyoung Global, Gyeonggi-do, KR;
Chanhyuk Park, Seoul, KR;
Yunchul Chung, Seoul, KR;
Yongxun Jin, Seoul, KR;
Min Kyu Choi, Seoul, KR;
Changhyun Ryu, Seoul, KR;
Dongkuk Shin, Seoul, KR;
Daeyoung Kwon, Seoul, KR;
Samyoung Global, Gyeonggi-do, KR;
Korea Institute of Science and Technology, Seoul, KR;
Abstract
The present invention relates to a sewage treatment system using granules, and more particularly, the sewage treatment system includes: an anoxic tank which has a sewage inlet port into which sewage is introduced; an anaerobic tank which is connected to the anoxic tank; intermittent aeration tanks which are connected to the anaerobic tank, have two or more separately divided spaces, and have, in the spaces, granules and aeration devices that alternately operate; and a settling tank which is connected to the intermittent aeration tanks, and the sewage treatment system is operated by a method including: a first step of introducing sewage; a second step of allowing the introduced sewage to pass through the anoxic tank and to be supplied with carbon; a third step of allowing the sewage passing through the anoxic tank to be introduced into the anaerobic tank; a fourth step of allowing the sewage passing through the anaerobic tank to be introduced into a first intermittent aeration tank and a second intermittent aeration tank which include the aeration devices and the granules including nitrogen treatment microorganisms; a fifth step of allowing the first intermittent aeration tank to be in an aeration state and the second intermittent aeration tank to be in a non-aeration state; and a sixth step of allowing the first intermittent aeration tank to be in the non-aeration state and the second intermittent aeration tank to be in the aeration state.