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1. (WO2014196132) METHOD AND DEVICE FOR TREATING BORON-CONTAINING WATER

Pub. No.:    WO/2014/196132    International Application No.:    PCT/JP2014/002608
Publication Date: Fri Dec 12 00:59:59 CET 2014 International Filing Date: Tue May 20 01:59:59 CEST 2014
IPC: C02F 1/58
B01D 61/02
C02F 1/44
Applicants: MITSUBISHI ELECTRIC CORPORATION
三菱電機株式会社
Inventors: NODA, Seiji
野田 清治
FURUKAWA, Seiji
古川 誠司
Title: METHOD AND DEVICE FOR TREATING BORON-CONTAINING WATER
Abstract:
For the purpose of carrying out a treatment for removing boron, which is contained in trace amounts in sea water, by a coprecipitation method using an alkaline component, a sea water treatment method and a sea water treatment device (1) for removing boron from sea water with high efficiency are provided, in which, in a step of adding an alkaline component to water to be treated to accelerate the precipitation of insoluble matter, the rate of precipitation of the insoluble matter is kept within the range of 0.003 to 0.02 [mol/(L·min)] inclusive so that boron can be incorporated into the insoluble matter during the process of growing of a magnesium salt, thereby precipitating the insoluble matter to thereby separate boron.