Studi Kasus Pengaruh Korosi Terhadap Kerusakan Impeller Pada Pompa Sentrifugal dan Dampaknya Terhadap Kinerja Operasional di PDAM Tirta Terubuk Bengkalis

Centrifugal pumps are crucial components in clean water distribution systems, especially in water treatment facilities such as PDAM. The impeller, as the main part of the pump, is highly susceptible to corrosion damage, which can reduce both efficiency and operational reliability. This study aims to analyze the effect of corrosion on impeller damage in centrifugal pumps and its impact on operational
performance at PDAM Tirta Terubuk Bengkalis. The research method used is a case study with a field-based approach, including direct observation, impeller
thickness measurements using an Ultrasonic Thickness Gauge, as well as analysis of water pH data and pump efficiency. The results show that the low pH of raw water (4.66–5.04) contributed to an average corrosion rate of 0.2406 mm/year. The reduction in impeller thickness significantly affected the pump’s efficiency from its ideal condition. In conclusion, corrosion has a direct impact on impeller wear and pump performance, thus requiring mitigation strategies such as selecting corrosion-resistant materials, regular pH monitoring, and preventive maintenance. This study is expected to serve as a reference for improving the reliability of pumping systems and the efficiency of clean water distribution in the water treatment industry.