BALLAST WATER TREATMENT APPARATUS

• Main Author: TANGE TOMOAKI
• Format: Patent
• Language: English; Japanese
• Published: 21.06.2018
• Subjects: CHEMISTRY; EQUIPMENT FOR SHIPPING; METALLURGY; PERFORMING OPERATIONS; RELATED EQUIPMENT; SHIPS OR OTHER WATERBORNE VESSELS; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

PROBLEM TO BE SOLVED: To provide a ballast water treatment apparatus capable of performing appropriate ultraviolet treatment according to a navigating water area.SOLUTION: The ballast water treatment apparatus comprises: ultraviolet treatment means (3); electrical conductivity measuring means (6) for measuring the electrical conductivity of ballast water; and control means (5) for controlling the output of the ultraviolet treatment means (3) according to the electrical conductivity of the ballast water measured by the electrical conductivity measuring means (6). The control means (5) controls such that the output of the ultraviolet treatment means (3) regards as a first output value (P1) when the electrical conductivity of the ballast water is greater than or equal to a specified threshold value, and the output of the ultraviolet treatment means (3) regards as a second output value (P2) higher than the first output value (P1) when the electrical conductivity of the ballast water is below the specified threshold value.SELECTED DRAWING: Figure 2 【課題】航行する水域に応じて適切な紫外線処理を行うことの可能なバラスト水処理装置を提供する。【解決手段】紫外線処理手段(3)を備えたバラスト水処理装置であって、バラスト水の電気伝導率を測定する電気伝導率測定手段(6)と、当該電気伝導率測定手段(6)により測定されたバラスト水の電気伝導率に応じて前記紫外線処理手段(3)の出力を制御する制御手段(5)とを備え、前記制御手段(5)は、前記バラスト水の電気伝導率が所定の閾値以上である場合、前記紫外線処理手段(3)の出力を第１の出力値(P1)とし、前記バラスト水の電気伝導率が所定の閾値を下回った場合、前記紫外線処理手段(3)の出力を前記第１の出力値(P1)よりも高い第２の出力値(P2)とするよう制御する、バラスト水処理装置。【選択図】図２