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:
May. 15, 2018
Filed:
Mar. 30, 2015
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Masayuki Eda, Tokyo, JP;
Susumu Okino, Tokyo, JP;
Ryuji Yoshiyama, Tokyo, JP;
Hideaki Sakurai, Tokyo, JP;
Nobuyuki Ukai, Tokyo, JP;
Hideo Suzuki, Tokyo, JP;
Hiroshi Nakashoji, Tokyo, JP;
Shigeru Yoshioka, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, INC., Tokyo, JP;
Abstract
Provided are a water treatment system and a water treatment process, which are capable of reproducing water containing salts with high water recovery. A water treatment systemcomprises a second demineralizing sectionthat separates water to be treated containing Ca ions, SOions and carbonate ions into concentrated water in which the Ca ions and the SOions are concentrated and treated water; a crystallizing section which is positioned on a downstream side of the second demineralizing sectionand which includes a second crystallizing tankthat crystallizes gypsum from the concentrated water and a seed crystal supplying section that supplies seed crystals of gypsum to the second crystallizing tank; and a separating section that is positioned on a downstream side of the crystallizing section and separates the gypsum from the concentrated water.