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:
Feb. 03, 2009
Filed:
Aug. 27, 2004
Ik Tai Yeom, Gyeonggi-do, KR;
Hyung Soo Kim, Seoul, KR;
Young Gyun Choi, Seoul, KR;
Yong Hyo Park, Seoul, KR;
Ik Tai Yeom, Gyeonggi-do, KR;
Hyung Soo Kim, Seoul, KR;
Young Gyun Choi, Seoul, KR;
Yong Hyo Park, Seoul, KR;
GS Engineering & Construction Corp., Seoul, KR;
SBF Inc., Gyeonggi-do, KR;
Abstract
The present invention relates to an activated sludge process and apparatus for effectively removing organic matters, nutrient salts, particulates, etc. dissolved in sewage/waste water by operating activated sludge process of a high biomass concentration combined with a down-flow solid-liquid separation process utilizing a float-concentrated sludge blanket layer. The present invention provides a process for biologically treating sewage/waste water using activated sludge, comprising the steps of (a) floating a sludge by having micro bubbles rise to form a float-concentrated sludge blanket layer and (b) down-flowing mixed liquor, including activated sludge and solids, into the sludge blanket layer, thereby resulting in a solid-liquid separation and an apparatus for operating the process.