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Pure Water Purification Technology Multi Stage Filtration PLC Control System Solution
DI Ultrapure Water Device for Electronic Optical Disc Production
Ultrapure water equipment utilizes a comprehensive pretreatment + reverse osmosis + EDI system to effectively remove salts, impurities, bacteria, and other contaminants from water, ensuring the produced water quality meets enterprise production requirements.
System Overview
The system features an integrated design with modular installation, offering low energy consumption and minimal space requirements. By combining RO reverse osmosis and EDI technology with steady flow pressure control, and supported by advanced pretreatment, the system delivers stable water quality, easy operation, low operating costs, environmental friendliness, and simplified maintenance. Produced water achieves resistivity ≥ 18.2MΩ.CM at 25°C.
EDI Technology Applications
EDI high purity water equipment serves as secondary desalination following reverse osmosis, producing water up to 10-18.2MΩ.CM. Widely used in microelectronics, semiconductor manufacturing, power generation, pharmaceutical industries, and laboratories. Also suitable for pharmaceutical distilled water, food and beverage production, power plant boiler makeup water, and various high purity water applications.
EDI utilizes anion and cation membranes in symmetrical stacked configuration with ion exchange resins. Under direct current voltage, continuous ion exchange and water electrolysis generate H+ and OH- ions for constant resin regeneration, producing increasingly pure water.
EDI equipment combines reverse osmosis and ion exchange technologies with intelligent PLC control systems, automatically monitoring and displaying water quality while ensuring consistent water production.
EDI Advantages Over Traditional Ion Exchange
Requires only 5% of the resin used in traditional methods
No chemical regeneration needed, reducing acid, alkali, and cleaning water consumption
Clean production technology with no waste acid/alkaline discharge
Easy automation integration with stable water quality
Produces electronic grade water (resistivity 15-18MΩ-cm, endotoxin <0.1mg/L)
Excellent removal of weakly dissociated substances (CO₂, silicon, boron, ammonia)
Continuous production process without regeneration downtime
Key Product Features
Fully automatic control system with imported components for high stability
Advanced automation with automatic shutdown and protection functions
Composite membrane modules for superior separation and transmission rates
Low energy consumption with high water utilization and operating efficiency
Compact, space-saving design
Automatic membrane flushing system extends membrane lifespan
Minimal maintenance requirements with long-term operational reliability
Integrated CIP membrane cleaning system
Premium Schneider electrical components for quality assurance
Optional remote monitoring for real-time system observation
Product Water Quality Specifications
Parameter
Unit
18MΩ Pure Water
Notes
Resistivity 25°C
MΩ-cm
≥17.5
Microparticles (≥0.1μm)
pcs/ml
5
Microparticles (≥0.2μm)
pcs/ml
5
Bacterial Count
pcs/ml
0.1
TOC
μg/L
20
Na+
μg/L
0.5
K+
μg/L
0.5
Zn++
μg/L
0.2
Cu
μg/L
0.2
SiO₂
μg/L
1
Cl
μg/L
1
Backwater Pressure
bar
2.5±0.5
Water Temperature
°C
23±1
Important Purchase Information
Due to the specialized nature of our products, please contact our customer service team before purchasing. Our representatives will recommend suitable equipment based on your specific water consumption and quality requirements. To avoid potential issues, please do not purchase equipment without consultation. For detailed specifications, parameters, or additional images, please contact customer service for comprehensive assistance. Thank you for your support of Net Environmental Protection!
Dongguan Jingchuang Environmental Protection Equipment Co., Ltd. was established in 2012 (the company has Dongguan Chengda Seawater Treatment Equipment Co., Ltd.), located in Dongguan City, Guangdong Province.
It is a limited liability company specializing in the design, consulting, manufacturing ... Dongguan Jingchuang Environmental Protection Equipment Co., Ltd. was established in 2012 (the company has Dongguan Chengda Seawater Treatment Equipment Co., Ltd.), located in Dongguan City, Guangdong Province.
It is a limited liability company specializing in the design, consulting, manufacturing ...
