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The reddening of water in drum boilers is essentially caused by excessive levels of iron ions in the boiler water, which gives rise to various hazards that directly threaten the safe operation of the boiler: scaling on the heat-exchanging surfaces can lead to tube bursts. The iron oxide scale formed at high temperatures has a thermal conductivity of only about 1% that of steel, which causes localized overheating of the tube walls, leading to bulging, creep, and even tube bursts. Such failures account for over 30% of all unplanned shutdowns of boilers. It accelerates metal corrosion and perforation. Iron scale creates \"differential corrosion cells\" that continuously dissolve the metal in the pipe walls; the annual corrosion rate can exceed 0.2 mm/year. Over time, this leads to pipe perforation and leakage, significantly reducing the lifespan of the equipment. Interlocked failures in the steam system: Iron oxides can enter the turbine along with the steam, depositing on the blades and nozzles and disrupting their dynamic balance. They can also clog the throttle plates and control valves, increasing the resistance in the system and leading to serious accidents such as water hammer in the turbine. It disrupts the normal water circulation. The accumulation of iron scale reduces the flow cross-section of the heating tubes, and can even completely block these tubes, thereby disrupting the boiler’s normal water circulation and further increasing the risk of localized overheating.