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, 2013
Filed:
Sep. 07, 2012
Taro Fukaya, Higashikurume, JP;
Shinji Murai, Sagamihara, JP;
Shinetsu Fujieda, Kawasaki, JP;
Hideyuki Tsuji, Yokohoma, JP;
Akiko Suzuki, Tokyo, JP;
Tatsuoki Kohno, Tokyo, JP;
Taro Fukaya, Higashikurume, JP;
Shinji Murai, Sagamihara, JP;
Shinetsu Fujieda, Kawasaki, JP;
Hideyuki Tsuji, Yokohoma, JP;
Akiko Suzuki, Tokyo, JP;
Tatsuoki Kohno, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A wastewater treatment method in an embodiment includes: mixing primary aggregates made of magnetic substances and a dispersion medium to make a suspension; and passing the suspension through a filter to allow the primary aggregates to remain on the filter and to form a secondary aggregate made of an aggregate of the primary aggregates. Further, the wastewater treatment method in the embodiment includes; passing wastewater through the secondary aggregate to remove suspended solids and oil in the wastewater; dispersing the secondary aggregate in a dispersion medium to decompose the secondary aggregate into the primary aggregates and to wash the primary aggregates; and collecting the primary aggregates with magnetic separation.