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. 05, 2005
Filed:
Feb. 22, 2002
Naoki Hiro, Osaka, JP;
Noriyuki Nakazawa, Tokyo, JP;
Naoki Hiro, Osaka, JP;
Noriyuki Nakazawa, Tokyo, JP;
Sanyo Electric Co., Ltd., Moriguchi, JP;
Abstract
There are proposed a waste water treating method, a waste water treating appratus and a waste water treating system which are capable of treating a nitrogen compound and a phosphorus compound in the same treating vessel and treating waste water containing a nitrogen compound and a phosphorus compound efficiently. The waste water treating method is a method for treating a nitrogen compound and a phosphorus compound in for-treatment water by an electrochemical process, wherein a metal material constituting a cathode is a conductive material, a conductive material constituting an anode is an insoluble material or carbon, and there is carried out at lease one of a step of adding calcium chloride to the for-treatment water and a step of immersing an iron material in the for-treatment water.