BALLAST WATER TREATMENT SYSTEM

摘要

The present invention relates to a ballast water treatment system, comprising: a filter and a electrolysis unit for receiving ballast water from the outside, and filtering and electrolyzing the ballast water; a first sensor unit for measuring seawater characteristics of the ballast water passing through the filter and the electrolysis unit so as to output the measured seawater characteristic values; a control unit which is placed to be connected with the first sensor unit, receives the measured seawater characteristic values from the first sensor unit, and determines a contamination level of the ballast water according to the measured seawater characteristic values so as to generate a control signal for controlling the strength of electrolysis; a UV/TiO2 system which includes a TiO2-coated plate, generates an OH radical through an interaction between ultraviolet rays and TiO2 so as to enable the OH radical to sterilize residual microorganisms included in the ballast water passing through the filter and the electrolysis unit; an automatic neutralization treatment device which includes a neutralizing agent, receives a neutralizing agent discharge signal from the control unit, and neutralizes the ballast water passing through the filter and the electrolysis unit; and a second sensor unit for measuring the total residual oxidant (TRO) concentration of the ballast water neutralized in the automatic neutralization treatment device and transmits the measurement result of the TRO concentration to the control unit, wherein the control unit generates the neutralizing agent discharge control signal for controlling the amount of the neutralizing agent discharged from the automatic neutralization treatment device according to the measurement result of the TRO concentration received from the second sensor unit. Thus, the sterilization efficiency for the ballast water satisfies the USCG standards during the ballasting step for the ballast water. In addition, the neutralization efficiency for the ballast water is increased during the deballasting step for the ballast water.