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:
Oct. 15, 2002
Filed:
Jun. 21, 2000
Applicant:
Inventors:
Yoshihiko Mori, Fuji, JP;
Yasujiro Fujii, Matsudo, JP;
Assignee:
Asahi Kasei Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 6/158 ; C02F 1/78 ;
U.S. Cl.
CPC ...
B01D 6/158 ; C02F 1/78 ;
Abstract
The present invention relates to a water treatment process comprising adding ozone to raw water and filtering the raw water using an ozone-resistant membrane, wherein a concentration of ozone present in the water filtered through the ozone-resistant membrane is detected and an amount of ozone to be fed into raw water is continuously and automatically controlled so as to adjust an ozone concentration to a prescribed value.