BALLAST WATER TREATMENT SYSTEM

摘要

Provided is a system for treatment of ballast water used in a ship. More particularly, the ballast water treatment system of the present invention comprises: a filtering unit which filters the ballast water taken into a ship; an ultraviolet treatment unit for sterilizing the ballast water filtered by the filtering unit by using ultraviolet rays; and a control unit for controlling operations of the filtering unit and the ultraviolet treatment unit. The filtering unit includes a body having an inlet and an outlet, a filter for filtering the ballast water flowing along the inside of the body, an automatic washing unit for washing off foreign substances from the filter, and a pressure sensor for measuring pressures at the inlet and the outlet. The ultraviolet treatment unit includes a body having an inlet and an outlet, an ultraviolet lamp for irradiating ultraviolet rays to the ballast water flowing along the inside of the body, a sleeve washing unit for removing foreign substances from the sleeve surrounding the ultraviolet lamp, an ultraviolet intensity meter for measuring the intensity of ultraviolet rays irradiated from the ultraviolet lamp, and a temperature sensor for measuring the temperature of the inside of the body. The present invention enables effective treatment of ballast water with less cost, prevents harmful substances or secondary contamination, prevents the inside of a ballast water tank from being polluted, and enables automatic washing of the apparatus even during operation.