Abstract:
Fisabilillah, DananJaya. 2025. “The Impact Of Decreasing Reverse Osmosis Production
On Fresh Water Usage On Board Cs TENEO”
Reverse Osmosis (RO) is a desalination system used to convert seawater into freshwater,
which plays a vital role in supporting ship operations, especially for daily consumption and
technical needs on board. This study aims to analyze the impact of reduced RO production
on freshwater usage aboard the CS Teneo cable ship. The research was conducted over a
12-month sea practice period using a qualitative descriptive method, employing techniques
such as observation, interviews, and documentation.
The findings reveal that the decline in freshwater production was caused by several factors,
including reduced suction pressure in the booster pump, clogged sea chest filters and
impellers, and blockages in the fine filters and RO membranes. The drop in booster pump
suction pressure directly affected the volume of seawater processed, while filter
obstructions disrupted the seawater-to-freshwater conversion. As a result, the amount of
freshwater produced daily was insufficient to meet the needs of the vessel’s crew.
To address these issues, routine maintenance and cleaning of RO components were carried
out, including the use of specialized cleaning chemicals. Evaluations of the corrective
actions demonstrated improved freshwater production performance. The study concludes
that regular maintenance and technical understanding of the RO system are essential to
ensure optimal operation and to support the safety and comfort of maritime activities
aboard the CS Teneo.
