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:
Mar. 13, 2012
Filed:
Sep. 14, 2009
Hideyuki Tsuji, Yokohama, JP;
Tatsuoki Kono, Tokyo, JP;
Akiko Suzuki, Tokyo, JP;
Shinetsu Fujieda, Kawasaki, JP;
Shinji Murai, Sagamihara, JP;
Nobuyuki Ashikaga, Kawasaki, JP;
Katsuya Yamamoto, Kawasaki, JP;
Hideyuki Tsuji, Yokohama, JP;
Tatsuoki Kono, Tokyo, JP;
Akiko Suzuki, Tokyo, JP;
Shinetsu Fujieda, Kawasaki, JP;
Shinji Murai, Sagamihara, JP;
Nobuyuki Ashikaga, Kawasaki, JP;
Katsuya Yamamoto, Kawasaki, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
The present invention provides a water purification material capable of selectively adsorbing phosphorus dissolved in wastewater, and also provides a water purification method employing the material. The water purification material comprises a composite metal hydroxide containing iron ions and calcium ions in its structure, and this composite metal hydroxide has a layered structure. In the water purification method of the present invention, the water purification material is brought into contact with wastewater so as to remove and recover phosphate ions in the wastewater.