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:
Oct. 20, 2009
Filed:
Mar. 16, 2009
Kwang-soo Kim, Gyeonggi-do, KR;
Hee-ja Lee, Gyeonggi-do, KR;
I-tae Kim, Gyeonggi-do, KR;
Kwang-ho Ahn, Seoul, KR;
Chai-sung Gee, Seoul, KR;
Sung-youn Kim, Gyeonggi-do, KR;
Ji-seon Yoo, Gyeonggi-do, KR;
Eui-sin Lee, Gyeonggi-do, KR;
Sung-pok Paik, Seoul, KR;
Chul-ki OH, Gyeonggi-do, KR;
Kwang-yoon Lee, Gyeonggi-do, KR;
Kwang-Soo Kim, Gyeonggi-do, KR;
Hee-Ja Lee, Gyeonggi-do, KR;
I-Tae Kim, Gyeonggi-do, KR;
Kwang-Ho Ahn, Seoul, KR;
Chai-Sung Gee, Seoul, KR;
Sung-Youn Kim, Gyeonggi-do, KR;
Ji-Seon Yoo, Gyeonggi-do, KR;
Eui-Sin Lee, Gyeonggi-do, KR;
Sung-Pok Paik, Seoul, KR;
Chul-Ki Oh, Gyeonggi-do, KR;
Kwang-Yoon Lee, Gyeonggi-do, KR;
Korea Institute of Construction Technology, Gyeonggi-Do, KR;
Daewoo Engineering & Construction Co., Ltd., Seoul, KR;
Abstract
A biological removal method of phosphorus and nitrogen includes supplying a mixture gas into a gas holder. Inflow water and return water are supplied into the gas holder to make the mixture gas dissolved in the inflow water and the return water. The return water was provided from a granulation biological reaction tank. The inflow water and the return water including the dissolved mixture gas are transported to the granulation biological reaction tank. A nitrogen-based component is removed from the inflow water and the return water using methan-oxidizing bacteria granulated in the granulation biological reaction tank. Treated water without the nitrogen-based component is transported to an anoxic tank for treatment, and discharged from the anoxic tank.