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1. (WO2018163475) BALLAST WATER MEASUREMENT DEVICE, SHIP PROVIDED WITH BALLAST WATER MEASUREMENT DEVICE, AND BALLAST WATER MEASUREMENT METHOD

Pub. No.:    WO/2018/163475    International Application No.:    PCT/JP2017/033517
Publication Date: Fri Sep 14 01:59:59 CEST 2018 International Filing Date: Sat Sep 16 01:59:59 CEST 2017
IPC: G01N 33/18
B63B 13/00
C02F 1/70
Applicants: KURITA WATER INDUSTRIES LTD.
栗田工業株式会社
Inventors: FUKUZAWA Kotaro
福澤 耕太郎
MIYATA Hiroshi
宮田 博司
Title: BALLAST WATER MEASUREMENT DEVICE, SHIP PROVIDED WITH BALLAST WATER MEASUREMENT DEVICE, AND BALLAST WATER MEASUREMENT METHOD
Abstract:
The purpose of the present invention is to increase the precision of water quality measurement of ballast water having different concentrations of an oxidizing agent. A ballast water measurement device (2, 62) is provided with a first measurement unit (6-1, 64-1) for measuring the concentration of an oxidizing agent in ballast water after addition of the oxidizing agent or ballast water before addition to a neutralizing agent, a second measurement unit (6-2, 64-2) for measuring the concentration of the oxidizing agent in the ballast water after neutralization of the oxidizing agent, and a housing (4) for accommodating the first measurement unit and the second measurement unit. The range of concentration measurement of the oxidizing agent differs between the first measurement unit and the second measurement unit.