China High-Salinity Wastewater Reduction System by China Suppliers | Zero Liquid Discharge Solutions from Factory Factories, Supplier

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OARO Membrane System

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Introducing the OARO membrane system, a cutting-edge solution for the treatment of high-salinity wastewater. This state-of-the-art system is designed specifically to reduce wastewater from various industries, including chemical, pharmaceutical, and electroplating sectors in China. By leveraging advanced evaporation and crystallization technologies, the OARO system not only minimizes wastewater but also significantly cuts down on treatment costs. With fully automated operations, low energy consumption, and a compact footprint, this system achieves near-zero liquid discharge effortlessly. Our reliable and durable solution helps factories comply with regulatory standards while promoting a shift towards green production. Choose the OARO membrane system for a sustainable future, backed by trusted suppliers in China.

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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

STRO System

1. High concentration ratio and reduction rate: The combination of pretreatment + OARO reduces the concentrated water volume by 80–90%, significantly decreasing the evaporation scale.

2. Modular skid-mounted design: Enables rapid factory prefabrication and on-site commissioning within 30 days, reducing civil construction by 60% while allowing phased expansion.

DTRO System

3. Energy conservation and cost reduction: Energy consumption is reduced by 40%. Membrane concentration replaces partial evaporation, with energy consumption per ton of water ≤0.8 kWh, resulting in a 30% reduction in operating costs.

4. Pollution-resistant and scale-preventing: Long-lasting stable wide-channel anti-pollution membrane + softening pretreatment, tolerant to high hardness/high COD, with cleaning cycle extended by 3 times.

An ideal solution for meeting short-term or long-term decentralized water supply demands

Core Technical Parameters

Inlet TDS 10,000–50,000 ppm
After concentration, TDS 150,000 ppm+
Processing capacity 50–5000 tons/day (customizable)
Process Pretreatment + OARO + MVR

Application Scenarios

◈ Lithium salt industry: Concentration of brine from salt lakes and concentrated wastewater from lithium mining processes
◈ Chemical Industry / Coal Chemical Industry: High-salt organic wastewater, reduction of evaporation mother liquor
◈ Electroplating/Textile dyeing: Heavy metal-containing high-salt wastewater, dye concentrate wastewater
◈ Pharmaceuticals/Agrochemicals: Fermentation of high-salt wastewater with zero discharge of mother liquor
◈ Mineral water: High-salinity mine water for salt resource recovery

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Frequently Asked Questions

Q1: Can high COD levels (2000 ppm) be treated?
A: By employing a coupled "pre-treatment + membrane separation" technology, the COD removal rate exceeds 90%, allowing direct feed into the membrane system.
Q2: Can lithium extraction from concentrated water achieve industrial-grade purity?
A: The specialized lithium extraction process yields lithium salts with a purity of ≥99%, directly meeting battery-grade and industrial-grade requirements.
Q3: Is system scaling severe?
A: With chemical softening, anti-fouling membrane, and online cleaning, the scaling risk is reduced by 80%, ensuring long-term stable operation.
Q4: What is the typical installation time for the modular system?
A: Thanks to our skid-mounted design, factory prefabrication is completed in advance, allowing for rapid on-site commissioning within approximately 30 days.
Q5: How does this system reduce operating costs?
A: By replacing traditional high-energy evaporation with membrane concentration, energy consumption is kept below 0.8 kWh per ton, reducing overall costs by up to 30%.
Q6: Is the processing capacity customizable for specific projects?
A: Yes, our systems are highly scalable and can be customized to handle processing capacities ranging from 50 to 5000 tons per day depending on industrial needs.

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