International Journal of Contemporary Research in Multidisciplinary

As industries face mounting pressure from water scarcity, rising energy prices, and stricter environmental regulations, the need for sustainable wastewater management has become more urgent than ever. This paper explores how energy-efficient technologies are reshaping industrial wastewater treatment, offering solutions that not only cut down on energy use but also promote water reuse and long-term sustainability. Drawing from academic research, real-world case studies, and collaborative efforts between governments and private sectors, the review highlights key innovations such as anaerobic digestion, microbial fuel cells, smart monitoring systems, and renewable energy integration. These technologies demonstrate how industries can recover energy from waste while significantly reducing their environmental footprint. By combining practical examples with emerging strategies, this study outlines a roadmap for industries seeking to transition toward more sustainable and cost-effective water management systems.