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:
Jul. 03, 2012
Filed:
Aug. 17, 2009
Mii Fukuda, Tokyo, JP;
Takashi Menju, Kawasaki, JP;
Yasushi Yamamoto, Yokohama, JP;
Kazuyoshi Aoki, Yokohama, JP;
Takeshi Matsushiro, Yokohama, JP;
Ryoichi Arimura, Musashino, JP;
Norimitsu Abe, Kawasaki, JP;
Futoshi Kurokawa, Tachikawa, JP;
Atsushi Yukawa, Tokyo, JP;
Tokusuke Hayami, Tokyo, JP;
Mii Fukuda, Tokyo, JP;
Takashi Menju, Kawasaki, JP;
Yasushi Yamamoto, Yokohama, JP;
Kazuyoshi Aoki, Yokohama, JP;
Takeshi Matsushiro, Yokohama, JP;
Ryoichi Arimura, Musashino, JP;
Norimitsu Abe, Kawasaki, JP;
Futoshi Kurokawa, Tachikawa, JP;
Atsushi Yukawa, Tokyo, JP;
Tokusuke Hayami, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
An activated carbon adder adds activated carbon to raw water before flocculating sedimentation, to adsorb suspended matter contained in raw water, a liquid cyclone is adapted to separate activated carbon with suspended matter adsorbed thereon, from raw water containing activated carbon, an inflow line is connected with the liquid cyclone so as to cause raw water containing activated carbon before flocculating sedimentation to flow into the liquid cyclone and swirl therein, an activated carbon discharge line discharges activated carbon spun down out of raw water containing activated carbon in the liquid cyclone, from the liquid cyclone, and a pretreated water discharge line discharges raw water having got rid of activated carbon as pretreated water from the liquid cyclone, allowing for a reduced amount of chemicals to be used, with production of a reduced amount of sludge.