Water Treatment for PCB Cleaning Systems
Water quality directly impacts cleaning and final residue levels. Proper treatment prevents mineral deposition, biofouling, and conductivity drift.
Importance of water treatment
Ions from tap water can leave conductive residues and promote corrosion. Treating water reduces ionic load, extends bath life, and improves rinse consistency.
Reasons to treat water
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prevent water spots and ionic contamination
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extend life of DI resin and bath chemistry
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maintain consistent rinse endpoints and process control
Methods of water treatment
Common methods include reverse osmosis, deionization, ultrafiltration, and UV sterilization. Combination systems often yield the best performance for rinse stages.
Treatment options
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RO followed by DI for high-purity final rinse water
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ultrafiltration to remove organics and particulates
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UV and biocides for biological control in recirculating systems
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inline conductivity and TOC monitoring for process alarms
ZESTRON can specify water treatment systems and inline controls for target rinse resistivity.