Dual-stage RO EDI Reverse Osmosis System for Printing and Dyeing Wastewater Reuse and Brackish Seawater Industrial Water Treatment Equipment

A custom-engineered, PLC-controlled reverse osmosis water treatment system with integrated UV and ozone disinfection, designed for demanding medical and industrial applications. The system delivers a treatment capacity of 4 tons per hour with a 45% water recovery rate, handling feed water with TDS concentrations up to 400 mg/L.

An advanced semiconductor ultrapure water system featuring TOC levels below 1 ppb for semiconductor wafer cleaning applications. The system includes a dual-stage RO EDI reverse osmosis unit, high-performance pumps, and comprehensive PLC control.

An OEM/ODM pharmaceutical-grade pure water production system designed for storage and distribution in the pharmaceutical industry. This advanced system combines RO membrane reverse osmosis with EDI filtration technology to deliver high-purity water solutions.

Tongjie Environmental's STRO membrane technology features a patented open-channel, low-fouling flow path design that minimizes membrane blockage and enables stable, long-term operation even under extreme water quality fluctuations.

• Hospital wastewater reuse
• Zero-liquid-discharge (ZLD) pretreatment
• High-salinity industrial water recycling applications

"We are proud to support WuXi AppTec's sustainability goals with a robust, energy-efficient treatment system that reduces liquid waste volume while maximizing water recovery. This project not only validates our STRO technology in a rigorous regulatory environment like Singapore but also strengthens our presence in the fast-growing Southeast Asian water treatment market." — Tongjie Environmental

With over a decade of R&D and engineering experience, Tongjie Environmental specializes in:

• STRO/DTRO membrane systems
• Landfill leachate treatment
• Industrial zero-discharge solutions

The company has delivered hundreds of projects across China and export markets, including Southeast Asia, the Middle East, and South America.

Shanghai Tongjie Environmental Technology Co., Ltd. is a high-tech enterprise focused on the R&D, design, manufacturing, and after-sales support of advanced membrane separation systems. The company's core technologies include STRO, DTRO, NF, and UF membrane processes, serving industries such as medical, chemicals, landfill leachate, and power generation.