Following the successful completion of Philips’ Phase 1 DI water project, we implemented the Phase 2 UPW system expansion together with the plant’s first wastewater reclaim system. This upgrade was designed to support increasing production demand while reducing freshwater consumption through integrated water reuse.
The reclaim system was engineered to recover three major wastewater streams generated from Philips’ production and mechanical operations:

1. Rinse water from the wafer-thinning process
2. RO reject water
3. Condensate from AHU/MAU systems

The treatment process incorporates advanced ultrafiltration, a specially designed anti-fouling RO system, and robust microbial control measures. The system delivers consistently high-quality reclaimed water, achieving performance exceeding specification:

• Reclaim Product Conductivity: < 5 μS/cm (vs. spec 15 μS/cm)
• TOC: < 15 ppb (vs. spec 50 ppb)

This wastewater reclaim system was formally recognized by Singapore’s Public Utilities Board (PUB). Philips received the Gold Award at the Water Efficiency Management Conference on 22 March 2013, reflecting the system’s significant contribution to water conservation and sustainable manufacturing operations.