The water industry is seeing a dramatic shift in the way industrial and municipal facilities are managing wastewater streams. Growing concerns over surface water contamination, rising source water costs, and managing brine disposal for heavy industries is seeing zero liquid discharge (ZLD) emerge as a winning water reuse strategy. Recent environmental regulations in the U.S. and in emerging economies, like India and China, have made ZLD installations mandatory across industries. While most systems are installed in remote, industrial environments to leverage waste heat and reduce energy consumption, emerging ZLD treatment trains can also provide an opportunity for inland municipal desalination plants to increase recoveries and lower brine disposal costs. Our analysis and timeline shows the rapid growth in the market and the technologies that will make ZLD adoption more widespread.