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:
Apr. 07, 2009
Filed:
Nov. 09, 2007
Keiichi Betsumori, Toyama, JP;
Takashi Matsubara, Toyama, JP;
Hiroshi Saiki, Ibaraki, JP;
Isao Karube, Ibaraki, JP;
Keiichi Betsumori, Toyama, JP;
Takashi Matsubara, Toyama, JP;
Hiroshi Saiki, Ibaraki, JP;
Isao Karube, Ibaraki, JP;
Hokuriku Electric Power Company, Toyama, JP;
Abstract
A method for removing phosphorus is provided in which eutrophic water as a treatment target is supplied to fly ash thereby removing phosphorus contained in the eutrophic water. The fly ash includes about 3% or more calcium oxide as a component. Alternatively, the fly ash consists of a double-structure embedding fine particles in a cavity of a hollow-particle structure having a hole in a part of the surface. Alternatively, the fly ash includes about 3% or more calcium oxide as a component and consisting of a double structure embedding fine particles in a cavity of a hollow-particle structure having a hole in a part of the surface.