Abstract:
This study was motivated by the discovery of technical issues in the Ballast Water Treatment System (BWTS) on the MV Ocean Perkasa, particularly in the filter and T-
strainer components, which were found to be clogged with debris. This condition disrupted the flow of ballast water into the electrolyzer and interfered with the measurement of Total Residual Oxidant (TRO) levels, posing a risk of non-compliance with the D-2 standard set by the International Maritime Organization (IMO). To address this problem, the study employs an evaluative approach using direct observation and in- depth interviews. The research analyzes the root causes of the blockage and proposes
preventive maintenance strategies, increased inspection frequency, and the utilization of
a pressure monitoring system as an early blockage detection mechanism. The findings
indicate that scheduled maintenance and adequate crew training significantly enhance the
operational efficiency of the BWTS. As a result, the system operates more stably,
ballasting and deballasting processes run more smoothly, and the risk of non-compliance
with international regulations can be minimized.