The global industrial water treatment industry is undergoing a profound structural transformation. The demand for discharge compliance is becoming saturated, and the traditional capacity expansion cycle is also drawing to a close. Therefore, the industry has completed the "first phase," which was jointly driven by mandated compliance and scale expansion. The industry is now officially entering the "next phase," driven by a restructuring of demand. In this next phase, a four-fold shift—resource recovery, park-based centralization, high-end applications, and emerging pollutant treatment—is redefining the industry's competitive landscape.
From a market size perspective, the global industrial water treatment equipment market had already reached $40.74 billion in 2025 and is projected to grow to $57.85 billion by 2032. The global market for water treatment in industrial parks reached $89.63 billion in 2025 and is expected to surpass $127.36 billion by 2030. This sustained market growth is driven by a profound transformation in technological pathways.
The continuous breakthrough in membrane technology is the industry's most critical innovation mainline. Membrane-based processes now account for 64.3% of the installed capacity in industrial park water treatment facilities, and the annual newly installed capacity of reverse osmosis and nanofiltration systems has exceeded 210 million cubic meters. At the technology frontier, the combination of materials genomics and artificial intelligence is driving innovations in membrane materials themselves. New membrane materials with anti-fouling, chemical-resistant, and high-recovery properties are constantly emerging, such as reverse osmosis membranes with a stable salt rejection rate of 99.7%, and enhanced anti-fouling coating products specifically designed for highly polluted water and industrial wastewater reuse. Novel membrane treatment processes like osmotically assisted reverse osmosis are also providing new technical pathways for the further concentration of high-salinity wastewater.
Intelligence and digitalization are reshaping the operational model of industrial water treatment. Smart water systems built around artificial intelligence and the Internet of Things are developing rapidly. These systems, through sensor networks, big data analytics, and automated control, have enabled intelligent operation and precise chemical dosing of water treatment facilities. The application of digital twin technology has shortened the commissioning time of water purification systems by 60% and optimized chemical dosage by 25%. The intelligent operational model centered on digital water treatment platforms is accelerating its penetration, and it is predicted that by 2030, over 65% of industrial parks worldwide will have deployed smart water management systems. The introduction of artificial intelligence is transforming water treatment from an engineering problem into a standardized, scalable, and replicable productized solution.
Zero liquid discharge and resource recovery technologies are moving from demonstration projects to mainstream application. The combined process centered on membrane concentration, high-efficiency evaporation crystallization, electrodialysis, membrane distillation, and advanced oxidation has become the mainstream technology matrix for achieving zero liquid discharge. The zero liquid discharge system market is projected to grow from $9.15 billion in 2026 to $13.65 billion in 2031. The industry is shifting from "end-of-pipe treatment" to "resource circulation." The water treatment facilities of the future will be not only pollution eliminators but also recovery centers for water resources, energy, and valuable substances. By simultaneously recovering high-quality reclaimed water, industrial salts, and even valuable components like fertilizer raw materials from wastewater, this technology is transforming environmental protection equipment from a "corporate burden" into a "profit source."
Meanwhile, fields previously outside the mainstream spotlight—such as semiconductor ultrapure water, AI data center cooling, and emerging pollutant treatment—are rapidly generating new technological demands. The future of industrial water treatment will inevitably involve deep integration with cutting-edge technologies like artificial intelligence, the Internet of Things, new materials, and biotechnology. At the convergence of the three major trends of low-carbon operation, intelligentization, and resource recovery, the industrial water treatment industry stands at a new starting point for technological innovation.