full-set seawater Industrial RO Water Treatment Equipment with 4 Tons Per Hour Capacity and 45% Water Recovery Rate for Up to 400 mg/L TDS
Commercial Industrial RO Water Treatment Equipment 5T/H Reverse Osmosis Purification System with multi-media activated carbon filtration. This OEM/ODM pharmaceutical-grade pure water production system is designed for storage and distribution in the pharmaceutical industry. The 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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Custom Capacity GMP Design for Pharmaceutical Industry Complete water for injection production line system including pure water preparation, WFI distiller and distribution system, and pure water production system with RO reverse osmosis and EDI filtration function. Available for OEM/ODM customizatio... -
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RO Water Treatment Equipment for Brackish & Seawater Desalination Pure Water Production System with RO Membrane Reverse Osmosis and EDI Filtration System Overview OEM/ODM pharmaceutical-grade pure water production system designed for storage and distribution in the pharmaceutical industry. This ... -
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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 ...