ODM High-Pressure Membrane Concentration System for High-Salinity Wastewater | China Suppliers & Factory Factories, Factory
Product Description
Our Solution
Shanghai Tongjie Environmental Protection's high-salt wastewater reduction and resource recovery system employs a combined process of OARO (Optical Advanced Reverse Osmosis) for high-salt concentration, DTRO (Dialysis-Treated Reverse Osmosis) for high-pressure reverse osmosis, and MVR (Membrane Vapor Recovery) for evaporation and crystallization. The raw water has a TDS concentration of 10,000–50,000 ppm, which is concentrated to over 150,000 ppm TDS, achieving zero wastewater discharge and salt resource recovery. Adapted for high-salt industries such as chemical engineering, electroplating, lithium salts, coal chemical industry, pharmaceuticals, and printing and dyeing.
Core Advantages
When wastewater TDS exceeds tens of thousands mg/L and COD remains high, conventional reverse osmosis membrane elements quickly fail due to concentration polarization and membrane fouling. System recovery drops sharply, cleaning cycles shorten to just a few days, and evaporation/crystallization costs remain prohibitive.
DTRO (Disc-Tube Reverse Osmosis) and STRO (Spiral Tube Reverse Osmosis) are specialized high-pressure membrane technologies engineered for extreme conditions. Both share open-channel flow path designs and high-pressure operation capabilities, achieving high-ratio concentration and stable permeate production that conventional membranes cannot reach. Whether treating complex landfill leachate or high-salinity wastewater from coal chemicals, electroplating, or pharmaceuticals, they enable efficient high-concentration volume reduction at lower cost, significantly reducing the load on downstream zero-liquid discharge processes.
Standard Process Flow
Application Scenarios
3.0 mm wide channel design allows high turbidity feed. Flux remains stable at 20–50 LMH with recovery of 75–90%.
Concentrates TDS from 30,000 mg/L to 80,000 mg/L, cutting operating costs by 60% compared to evaporation.
Directly treats high hardness, high salinity wastewater without softening, offering superior operational stability.
Recovers sodium chloride and sodium sulfate as industrial-grade by-products through salt separation.
Uses nanofiltration to separate and recover valuable metal ions such as sodium and potassium.
Permeate reuse for drilling mud preparation while significantly lowering off-site disposal costs.
Compact modular design suitable for ships, naval vessels, and small island desalination units.
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