Water Treatment is crucial to improve most water-based industrial processes such as heating, processing, cleaning, cooling, and rinsing so that operating costs and correlate risks get diminished. Poor water treatment lets on the water interact with the surface of pipes and vessels which contain it. Steam boilers can scale up or erode but if left untreated, the warm, dirty water they consist of will boost bacteria to grow and Legionnaires’ disease can be a disastrous repercussion. This eLearning module encloses all these aspects which include boiler water treatment, industrial wastewater treatment, and cooling water treatment. A detailed understanding of this process is covered in the technical eLearning module. The module takes the user through the best water treatment uses with case studies in the industry, demonstrated by TATA Steel's in-house practices.