Filtration-Dominant Water Treatment Architectures for High-Purity Applications.

Water quality is a critical control variable for healthcare device processing and other high-purity applications. Many facilities rely on chemical treatments (e.g., salt-based softeners, sodium bisulfite for dechlorination), but these methods increase system complexity, generate chemical waste, and introduce risks to staff, patients, and downstream wastewater systems. These challenges are particularly noteworthy in healthcare settings, where both safety and environmental performance are tightly regulated. Filtration-based alternatives that reduce dependence on chemical dosing were evaluated in the current work. Technologies such as reverse osmosis, advanced carbon and particulate filtration, and ultraviolet or thermal disinfection could achieve high-purity water, including critical water, by removing dissolved ions, organics, particulates, and microorganisms. These approaches simplified operations, lowered chemical handling risks, and reduced waste generation while maintaining consistent water quality at a substantial cost reduction in equipment, installation, energy, and consumables. Through comparison of conventional chemical systems and low-chemical or chemical-free designs, the analysis showed that filtration-centered approaches can meet stringent performance requirements while improving safety, reliability, and sustainability. The findings supported the consideration of filtration-dominant water treatment as a practical, evidence-informed strategy to reduce chemical reliance, protect human health, and minimize environmental impact in healthcare facilities when implementation is supported by appropriate validation and monitoring.