The iron, steel, and metal industry are among the sectors that heavily rely on cooling water. In fact, water can be considered one of the raw materials, alongside iron ore, lime, and scrap iron. The quality of water and the success of the cooling water system can directly impact the quality of the produced goods. Therefore, the chemical content of the water to be used in cooling towers should be thoroughly examined. In cooling towers, high-quality makeup water that conforms to the operating parameters of the systems should be provided. Moreover, in open-loop systems, effective dispersants should be used for atmospheric pollutants, and cooling water conditioning programs should be established to prevent contaminants like scale from causing issues in the system.
Additionally, in the steel industry, where both vegetable and synthetic oils are used, an effective disinfection program with sodium hypochlorite, biocides, and biodispersants should be implemented in cooling towers of open systems. Biocides compatible with acid used for pH control in cooling towers should be selected.
Boilers in such facilities are generally hot water boilers. Therefore, a conditioning program with a combination of oxygen scavenger and internal conditioner, which includes a combination of products such as oxygen scavenger and internal conditioner, can be applied to the boiler.
Due to the presence of heavy pollutants in the metal industry, polyelectrolytes capable of operating under operational conditions should be used to easily remove floating (oil, grease, etc.) or settling (scale, dust, etc.) contaminants from cooling water or process water. In some cases, using polyelectrolytes with a mechanical method provides a more precise solution.