Zhongnuo Water Treatment designed and supplied a 20 m³/h industrial ultrapure water treatment system for an electronics manufacturing plant in Cambodia. The system combines double-pass reverse osmosis (RO), EDI technology, and UV sterilization to produce high-quality ultrapure water for PCB manufacturing, electronic component cleaning, precision rinsing, and automated production lines. The fully automated system ensures stable water quality, continuous operation, and reduced operating costs.

• Meeting stringent ultrapure water quality requirements.
• Continuous 24/7 production water supply.
• Removing ions, hardness, chlorine, microorganisms and dissolved salts.
• Protecting precision electronic manufacturing equipment.
• Achieving high automation with low operating costs.

Municipal Water  ->  Raw Water Tank  ->  Raw Water Pump  ->  Multi-media Filter  ->  Activated Carbon Filter  ->  Water Softener  ->  Brine Tank  ->  5 μm Cartridge Filter  ->  First-stage High-pressure Pump  ->  First-pass RO System  ->  First-pass Pure Water Tank  ->  Second-stage High-pressure Pump  ->  Second-pass RO System  ->  Second-pass Pure Water Tank  ->  EDI Booster Pump  ->  EDI System  ->  UV Sterilizer  ->  Ultrapure Water Tank  ->  Water Supply System  ->  Production Water Points

The system integrates pretreatment, double-pass RO, EDI modules, UV sterilization, sanitary piping, PLC automatic control, and online monitoring. Designed for electronics manufacturing, it delivers consistent ultrapure water while minimizing maintenance and ensuring reliable long-term performance.

• Raw Water Tank

• Raw Water Pump

• Multi-media Filter

• Activated Carbon Filter

• Water Softener

• Brine Tank

• 5 μm Cartridge Filter

• First-stage High-pressure Pump

• First-pass RO System

• Second-stage High-pressure Pump

• Second-pass RO System

• EDI Booster Pump

• EDI Modules

• UV Sterilizer

• Ultrapure Water Tank

• PLC Control System

• Double-pass RO + EDI technology

• Ultrapure water conductivity ≤0.2 μS/cm (design dependent)
• Continuous chemical-free EDI operation

• PLC automatic control with real-time monitoring
• Low TOC and stable water quality

• Energy-efficient and low-maintenance design
• Suitable for precision electronics manufacturing

✓ Stable 20 m³/h ultrapure water production
✓ Continuous 24/7 operation
✓ Reliable ultrapure water quality
✓ Improved production efficiency
✓ Reduced equipment scaling and maintenance
✓ Lower operating costs
✓ Enhanced product consistency

Q: Why use double-pass RO + EDI?
A: It delivers stable ultrapure water required for precision electronics manufacturing.

Q: What applications can use this water?
A: PCB production, semiconductor-related cleaning, component rinsing and other precision processes.

Q: Is the system fully automatic?
A: Yes, PLC controls operation, monitoring, alarms and flushing.

Q: Can conductivity be customized?
A: Yes, based on project requirements.

Q: Does EDI require chemical regeneration?
A: No. EDI operates continuously without chemical regeneration.

Q: Can the capacity be customized?
A: Yes, from 0.5 to over 100 m³/h.

Q: What is the membrane lifespan?
A: Typically 3–5 years with proper pretreatment.

Q: Does Zhongnuo provide commissioning?
A: Yes, including installation guidance, training and after-sales support.

• 23+ Years of Experience
• 20+ Professional Engineers
• RO, EDI & Ultrapure Water Specialists
• Customized Industrial Water Solutions
• ISO-Certified Manufacturing
• Complete EPC Service
• Projects in 100+ Countries
• 24/7 Technical Support
• OEM & ODM Available