High-Efficiency Core Units
Standardized & Skid-Mounted Core Product Range
Pre-engineered, factory-assembled, and skid-tested membrane separation systems delivered directly from Shanghai manufacturing facilities for fast worldwide commissioning.
Engineering Authority
Industrial Brine Concentration & Zero Liquid Discharge (ZLD) Paradigms
Navigating extreme osmotic pressures, volatile scalants, and intensive energy consumption through combined membrane pre-concentration and thermal crystallization engineering.
Hydraulic & Osmotic Overcoming
Traditional SWRO fails once TDS levels exceed 50,000 ppm due to membrane compaction and standard osmotic pressure limits. Tongjie leverages High-Pressure Reverse Osmosis (HPRO) and Disc Tube Reverse Osmosis (DTRO) engineered up to 120-160 bar, safely lifting brine concentrations toward 100,000–140,000 mg/L before thermal deployment.
MVR & Forced Circulation
Mechanical Vapor Recompression (MVR) re-compresses secondary steam to harness latent heat, achieving thermodynamic efficiencies that slash auxiliary steam consumption by up to 80%. Titanium Grade 2 and Duplex 2205/2507 alloys guarantee corrosion resistance against chloride attack during phase separation.
Fractional Salt Recovery
Moving past hazardous sludge dumping, next-generation brine treatment relies on nanofiltration monovalent/divalent salt splitting. This separates NaCl and Na₂SO₄ streams, allowing industrial crystallizers to generate marketable, high-purity chemical grade salts (>98.5% purity) for re-sale or circular chlor-alkali consumption.
Integrated Manufacturing
Why Global EPCs & Industrial Owners Partner with Chinese Manufacturers
End-to-end mechanical fabrication, rapid vertical supply integration, and high engineering agility empower Tongjie to provide top-tier turnkey water treatment plants at optimized capex.
Full In-House Fabrication
By hosting pressure vessel welding, piping spool automation, control panel building, and frame skid powder coating under one roof in Shanghai, we eliminate third-party markup and control precision QA/QC at every stage.
Tier-1 Component Partnerships
We source core components directly through top-tier global supply chains—including DuPont FilmTec membranes, Grundfos and Danfoss high-pressure duplex pumps, and Siemens S7 PLC architectures—ensuring seamless site commissioning.
Stringent Factory Acceptance (FAT)
Every skid undergoes wet hydrostatic pressure verification, electrical simulation loops, PLC dry runs, and valve seal safety checks before export packing, drastically minimizing on-site troubleshooting times.
Comprehensive EPC Dossiers
Overcoming cross-border documentation hurdles, Tongjie delivers complete English engineering packages, including 3D BIM models, accurate P&IDs, electrical schematics, cause-and-effect matrices, and QA inspection dossiers.
Technical Benchmarking
Brine Treatment Process Trains: Technical Specification
Compare process metrics across our standard industrial brine concentration and zero liquid discharge modules.
| System Configuration | Feed TDS Range | Max Brine Concentration | Energy Consumption | Primary Industrial Use Case |
|---|---|---|---|---|
| High-Recovery SWRO | 15,000 – 45,000 mg/L | 65,000 – 80,000 mg/L | 2.8 – 4.2 kWh/m³ | Seawater Desalination, Coastal Utilities, Mining Intake |
| DTRO / High-Pressure RO (HPRO) | 40,000 – 90,000 mg/L | 120,000 – 140,000 mg/L | 6.5 – 12.0 kWh/m³ | Oilfield Flowback, Landfill Leachate, Flue Gas Scrubber Brine |
| Electrodialysis Reversal (EDR) | 20,000 – 80,000 mg/L | 150,000 – 180,000 mg/L | 8.0 – 15.0 kWh/m³ | Silica-Laden Industrial Waste, Electroplating Effluents |
| MVR Falling Film Evaporator | 80,000 – 200,000 mg/L | Up to Saturation (~300,000 mg/L) | 22.0 – 38.0 kWh/m³ (eq) | Chemical Park Pre-Concentration, Coal-to-Chemicals ZLD |
| Forced Circulation Crystallizer | Saturated Slurry | Dry Solids Cake (Zero Discharge) | 45.0 – 70.0 kWh/m³ (eq) | Hazardous Waste Volume Elimination, Salt Crystallization |
Global Footprint & Compliance
Regional Compliance Safeguards & Application Scenarios
Tongjie engineers modular brine and wastewater plants designed to meet regional discharge limits and installation standards across the globe.
Middle East (GCC) & Harsh Climates
Engineered for ambient operation up to 55°C, high dust conditions, and extreme marine salinity. Equipment incorporates air-conditioned shelter containers, anti-corrosive C5-M marine polyurethane coating, and specialized anti-scalant dosing for Red Sea and Arabian Gulf water chemistries.
European Union & North America
Manufactured to meet CE directives, ASME Section VIII Boiler and Pressure Vessel codes, and UL/CSA electrical control panel standards. Full integration of IoT-enabled remote telemetry provides real-time reporting compliant with EPA and industrial effluent limits.
Mining & Heavy Refining (Kazakhstan, LatAm)
Specialized DTRO and thermal packages built for extreme winter conditions (-40°C), treating fracturing flowback, metallurgical raffinate, and copper-mine tailings water. Units achieve oil removal to ≤5 mg/L and suspended solids to ≤1 mg/L for zero-liquid discharge or deep-well reinjection.
Buyer Knowledge Base
Frequently Asked Questions: Industrial Brine & ZLD Equipment
Clear, engineering-driven answers to frequent technical, logistical, and commercial inquiries from international procurement teams.
How does Tongjie manage membrane scaling during high-TDS brine concentration?
We deploy dynamic software simulations to model ion solubility indices (LSI, S&DSI). Based on your water report, we apply targeted pretreatment, such as dual-media filtration, softening, microfiltration, and disc-tube open-channel hydraulics (DTRO), paired with automated CIP cycles to eliminate boundary-layer fouling.
What factory acceptance testing (FAT) can overseas buyers inspect before dispatch?
We conduct end-to-end wet hydrostatic pressure tests, pipe weld X-ray inspections (upon request), pump loop tests, power panel load verification, and automated PLC control sequence dry runs. Clients can join via live high-definition video inspection or through third-party auditors like SGS or TÜV.
Can your systems be customized for private label (OEM/ODM) distribution?
Yes. Tongjie supports international OEMs, regional contractors, and engineering distributors with white-label modular skids. We customize piping layouts, steel skid colors, HMI software branding, and deliver complete, unbranded engineering documentation for seamless handover.
What data is essential to obtain a comprehensive techno-commercial proposal?
Please provide a detailed raw water analysis (TDS, Hardness, Silica, Cl⁻, SO₄²⁻, COD, Suspended Solids), required daily feed or permeate volume (m³/day or GPD), product water quality target, site ambient conditions, available electrical utilities, and whether a containerized or open skid format is preferred.
Specialized Industrial Solutions
High-Recovery & Specialty Water Treatment Systems
Explore our complete product catalogue spanning deoxygenation, advanced thermal concentration, wastewater reclamation, and zero discharge configurations.
