How does fuel oil polishing remove sludge from storage tanks?

Fuel oil polishing systems remove sludge from storage tanks by circulating the fuel through a filtration system that separates solid contaminants. The process begins by pumping the fuel through water separators and coarse filters to capture large particles and sludge. Then, finer filtration stages remove smaller particulates, leaving clean fuel in the tank. Regular fuel polishing prevents sludge buildup in storage tanks and ensures that the fuel remains free from contamination. Additionally, periodic tank cleaning may be required to remove accumulated sludge that cannot be fully eliminated through filtration.