• Sindhu J. Nair
• Prabhat Kumar
• Santosh Kumar Sar

This study investigates the strategic reuse of treated water at Tata Steel Gamharia (TSG), Jharkhand, with a focus on reducing freshwater dependency and enhancing sustainability across various industrial operations. Through comprehensive water audits, departmental consumption analysis, and the implementation of six enabler projects, treated water from Effluent Treatment Plants (ETP) and Sewage Treatment Plants (STP) was successfully repurposed for non-critical applications such as gardening, dust suppression, coal quenching, and equipment cleaning. The study recorded substantial reductions in freshwater consumption across multiple departments, with daily savings exceeding 2070 KL. Enabler projects, including the use of ETP water in ash mound greenery (800 KL/day) and CPP operations (500 KL/day), played a critical role in achieving these targets. Effluent quality consistently met EPA 1986 (Schedule VI) standards, with pH (avg. 7.11), BOD (6.23 mg/l), and COD (36.4 mg/l) well within permissible limits, ensuring environmental safety and usability for secondary applications. These results confirm the technical and economic feasibility of treated water reuse and underscore its alignment with sustainable industrial water management practices. The study offers a replicable framework for similar industrial units seeking to reduce freshwater intake, improve environmental performance, and enhance resource efficiency through data-driven and infrastructure-supported water reuse initiatives.

Treated water reuse, Industrial water management, Effluent Treatment Plant (ETP), Sustainability in steel industry, Water conservation, Tata Steel Gamharia

"Treated Water Reuse in Tata Steel Gamharia, Jharkhand: A Case Study", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.12, Issue 8, page no.d89-d100, August-2025, Available :http://www.jetir.org/papers/JETIR2508311.pdf

"Treated Water Reuse in Tata Steel Gamharia, Jharkhand: A Case Study", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.12, Issue 8, page no. ppd89-d100, August-2025, Available at : http://www.jetir.org/papers/JETIR2508311.pdf