Ballast water treatment apparatus and ballast water management system

摘要

A ballast water treatment apparatus includes a discharge path for discharging ballast water from a ballast tank that stores the ballast water, an ultraviolet irradiation device that includes an ultraviolet lamp and that irradiates the ballast water passing through the discharge path with ultraviolet light, a circulation path formed so that the ballast water circulates therethrough and is irradiated with ultraviolet light emitted from the ultraviolet lamp, a switching portion for switching a path through which the ballast water flows between the circulation path and the discharge path, and a control device that controls the switching portion so that the ballast water flows through the circulation path during a switching-on process of the ultraviolet lamp and controls the switching portion so that the ballast water flows through the discharge path when the switching on of the ultraviolet lamp is completed.

主权项

1. A ballast water treatment apparatus comprising:
a discharge path for discharging ballast water from a ballast tank that stores the ballast water; an ultraviolet irradiation device that includes an ultraviolet lamp and that irradiates the ballast water passing through the discharge path with ultraviolet light; a circulation path formed so that the ballast water circulates therethrough and is irradiated with ultraviolet light emitted from the ultraviolet lamp; a switching portion for switching a path through which the ballast water flows between the circulation path and the discharge path; a control device that controls the switching portion so that the ballast water flows through the circulation path during a switching-on process of the ultraviolet lamp and controls the switching portion so that the ballast water flows through the discharge path when the switching on of the ultraviolet lamp is completed; and a filtering device that filters the ballast water and that supplies the filtered ballast water to the ultraviolet irradiation device when the ballast water is stored in the ballast tank, wherein the circulation path and the discharge path include a common path that bypasses the filtering device.