Ballast water treatment system

Abstract

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.

Description

technical field [0001] The present invention relates to a ballast water treatment system for ships, in particular to a ballast water treatment system, which includes: a filtering part, which uses filters to filter ballast water in ships; an ultraviolet treatment part, which uses ultraviolet rays to The ballast water filtered by the filter part is sterilized; the control part controls various operations of the filter part and the ultraviolet treatment part; a filter to filter the ballast water flowing inside the main body; an automatic cleaning unit to remove foreign matter attached to the filter; a pressure sensor to detect the pressure of the inflow unit and the outflow unit; the ultraviolet treatment unit includes: the main body, Equipped with an inflow part and an outflow part for inflow / outflow of ballast water; an ultraviolet lamp that irradiates ultraviolet rays to the ballast water flowing inside the above-mentioned main body; a bushing cleaning part that removes foreig...

AI Technical Summary

Problems solved by technology

[0005] However, the heat treatment method has the problem of being difficult to deal with heat-resistant microorganisms or inorganic pollution sources; the chemical treatment method may cause secondary pollution after the ballast water is treated; the electrolysis or ozone treatment method has short-circuit caused by explosion or The problem of low management efficiency; the filtration method has the problem that it is difficult to remove the sediment attached to the filter, and the treatment of the ballast water needs to be stopped when the above sediment is removed; and the method of irradiating ultraviolet rays has the problem that it is attached to the sleeve surrounding the ultraviolet lamp Foreign matter on the surface reduces efficiency

In addition, it is difficult to complete the complete ballast water treatment by using the above-mentioned methods alone, but if all the methods are used, the treatment cost will be increased and the efficiency will be low

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