Project Background
A leading electronics factory specializing in the production of precision components such as chips and circuit boards faced increasingly stringent water quality requirements. Contaminants like fine particles, organic matter, and ions in the water could significantly affect product quality. The factory’s original water treatment system could no longer meet its growing production demands. To address this, the company decided to upgrade to a 20-ton-per-hour (TPH) reverse osmosis (RO) system.
System Configuration
The factory selected a double-stage reverse osmosis system equipped with high-quality imported RO membranes. These membranes offer a high salt rejection rate and excellent resistance to fouling. The pretreatment section includes a multimedia filter, activated carbon filter, and water softener, effectively removing suspended solids, colloids, organic matter, chlorine, and hardness from the raw water.
Additionally, the system is integrated with an EDI (Electrodeionization) module to further polish the water, ensuring it meets ultrapure water standards—essential for sensitive electronic manufacturing processes.
Application Results
- Improved Product Quality:
The ultrapure water produced by the RO system ensures high water stability and purity. In critical processes such as chip cleaning, etching, and photolithography, it has effectively eliminated issues caused by residual impurities and potential short-circuits. As a result, the chip yield rate improved from 85% to over 95%. - Stable Production Operations:
With a processing capacity of 20 TPH, the system fully meets the factory’s daily water demand. The equipment runs reliably with minimal downtime. Its automated control system monitors and adjusts water quality, pressure, and other parameters in real time, ensuring continuous and stable operation.
Economic and Social Benefits
- Economic Impact:
The increase in product yield has significantly reduced manufacturing costs by lowering raw material waste and rework expenses. Despite the high initial investment, the system pays off in the long run, saving the factory hundreds of thousands of RMB annually. - Social Value:
This case sets a benchmark for water treatment in the electronics industry. It not only raises the bar for water quality standards but also promotes the advancement of water purification technology. Moreover, improved product quality strengthens the competitiveness of China’s electronics sector, contributing to broader industrial growth.
