Industrial and commercial high-flow reverse osmosis water filtration system automatical RO Water Treatment Equipment with 4 Tons Per Hour Capacity and 45% Water Recovery Rate for Up to 400 mg/L TDS
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 for brackish and seawater desalination.
| Parameter | Specification |
|---|---|
| Treatment Capacity | 4 tons per hour |
| Water Recovery Rate | 45% |
| COD Levels | Up to 500 mg/L |
| TDS Concentrations | Up to 400 mg/L |
| pH Level | 13 (strong alkalinity) |
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
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.
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Commercial RO Water Treatment Equipment with 4 Tons Per Hour Capacity and 45% Water Recovery Rate for Up to 400 mg/L TDS
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Pure Water Production System with RO Membrane Reverse Osmosis and EDI Filtration 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 ...