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1. US20200189943 - BALLAST WATER TREATMENT METHOD

官庁
アメリカ合衆国
出願番号 16642680
出願日 27.08.2018
公開番号 20200189943
公開日 18.06.2020
公報種別 A1
IPC
C02F 1/50
C化学;冶金
02水,廃水,下水または汚泥の処理
F水,廃水,下水または汚泥の処理
1水,廃水または下水の処理
50殺菌剤の添加もしくは適用によるものまたはオリゴダイナミック処理によるもの
B63J 4/00
B処理操作;運輸
63船舶またはその他の水上浮揚構造物;関連艤装品
J船舶用補機
4下水または汚水処理用設備
C02F 1/72
C化学;冶金
02水,廃水,下水または汚泥の処理
F水,廃水,下水または汚泥の処理
1水,廃水または下水の処理
72酸化によるもの
CPC
C02F 2103/008
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
2103Nature of the water, waste water, sewage or sludge to be treated
008Originating from marine vessels, ships and boats, e.g. bilge water or ballast water
C02F 1/50
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
50by addition or application of a germicide or by oligodynamic treatment
C02F 1/72
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
72by oxidation
B63J 4/002
BPERFORMING OPERATIONS; TRANSPORTING
63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
JAUXILIARIES ON VESSELS
4Arrangements of installations for treating ; ballast water,; waste water, sewage, ; sludge, or refuse; , or for preventing environmental pollution not otherwise provided for;
002for treating ballast water
出願人 Kuraray Co., Ltd
Kuraray Co., Ltd.
発明者 Yasuhiro TAJIMA
優先権情報 2017-166393 31.08.2017 JP
発明の名称
(EN) BALLAST WATER TREATMENT METHOD
要約
(EN)

A ballast water treatment method includes: a step of supplying a sterilizing component to a ballast pipe while taking ballast water into a ballast tank through the ballast pipe; a first measurement step of measuring the concentration of the sterilizing component in the ballast water after the sterilizing component is supplied; a circulation step of returning the ballast water stored in the ballast tank to the ballast pipe through a circulation pipe; a second measurement step of measuring the concentration of the sterilizing component contained in the ballast water returned to the ballast pipe; and a step of supplying the sterilizing component to the ballast pipe 2 when the concentration of the sterilizing component measured in the second measurement step is less than 0.2 times the concentration of the sterilizing component measured in the first measurement step. In the first supply step, the sterilizing component is supplied to the ballast pipe 2 such that the concentration of the sterilizing component measured in the first measurement step becomes 6 mg/L or more.