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. 16, 2019
Filed:
Nov. 20, 2014
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Yuuji Nakajima, Tokyo, JP;
Naoki Ogawa, Tokyo, JP;
Kyoko Wada, Tokyo, JP;
Yuta Nakatsuchi, Tokyo, JP;
Atsushi Kinugasa, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
The present invention includes: a laundry wastewater tank that temporarily stores laundry wastewater from a plant facility; a biological treatment tank in which the laundry wastewater from the laundry wastewater tank is aerated and mixed with activated sludge; a treated water tank that stores the treated laundry wastewater that has been biologically treated; and a treatment preparation supplying device that supplies a laundry wastewater biological treatment preparation to the biological treatment tank. The laundry wastewater biological treatment preparation is introduced when a change in water quality that deteriorates the biological treatment in the biological treatment tank is detected. Thus, biological treatment can be performed stably.