This course provides a comprehensive engineering approach to the design and operation of water and wastewater treatment systems in industrial settings. It covers the fundamental physical, chemical, and biological unit operations used to treat water for industrial use (e.g., boiler feed, cooling towers) and to remediate process wastewater to meet stringent environmental discharge standards. The course curriculum emphasizes process selection, design calculations, and the integration of treatment units into an efficient and cost-effective plant-wide system, preparing delegates to address critical challenges in water sustainability and regulatory compliance.