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APRIL 2026 I I-CONNECT007 MAGAZINE 95 liters (or 500 cubic meters) per day, the invest- ment required can vary significantly based on the complexity and technology employed. A traditional wastewater system designed for such a capacity will cost approximately $2.5 million. This figure includes costs for equipment, installation, regula- tory compliance, and system integration. This is a significant investment for a finite process. In contrast, a comparable ZLD system for the same facility could require an investment of ap- proximately $3 million to $4 million due to the additional technologies and processes needed to achieve zero discharge. It is worth noting that a ZLD system is not a Figure 4: A flow diagram to visually evaluate the sizing of a closed- loop, water recycling, ZLD plant. water-saving scheme for a fab; it is an insurance of good rinsing, which has a significant impact on yield. The layout for a system designed to regenerate 500 m3/day can be expected to follow the same modeling as previously discussed in this article, i.e., 30% will be concentrated UPW and 70% will be diluted UPW. A water balance flow chart is created to verify the quote calculation and ensure the equipment is correctly sized. Conclusion As industries increasingly prioritize water sustain- ability, compliance with environmental regulations, and efficient resource management, ZLD systems are expected to be integral to future industrial water management strategies. The ongoing ad- vancements in technology and growing regulation will further drive the adoption of these systems, en- suring a more sustainable industrial future. The ZLD systems market is witnessing notable innovations. There is a swift uptake of state-of- the-art membrane technologies, including reverse osmosis and ultrafiltration, to enhance treatment efficiency. Compact and modular ZLD systems are being developed for small and medium-sized manufacturing facilities, providing flexibility and scalability. The incorporation of digital monitoring and automation technologies is enhancing opera- tional efficiency and reducing downtime. Critically, for the concentrated treatment stream, technological advancement and increased invest- ment are being directed toward more energy-effi- cient evaporation and crystallization technologies, helping to mitigate some of the energy concerns. Stay tuned for the next installment of this article series to get the full picture. I-CONNECT007 Richard Nichols is technical marketing director at GreenSource Engineering.