High-Recovery Brine Concentration & Reuse Systems
Pre-engineered, modularized, and containerized membrane treatment modules delivering dependable high-salinity separation and operational stability in challenging operating environments.
Thermodynamic Efficiency & High-Pressure Membrane Limits
Modern industrial wastewater disposal mandates require an engineering evolution beyond traditional thermal brine concentrators. Conventional mechanical vapor recompression (MVR) evaporators exhibit high capital expenses and intensive specific energy consumption (often exceeding 25 to 55 kWh/m³ of evaporated water). Shanghai Tongjie specializes as an OEM Brine Concentration Factory & Supplier, leveraging hybrid disc-tube reverse osmosis (DTRO), spiral-wound high-pressure RO (STRO), and electrodialysis reversal (EDR) to drive raw feed brine up to total dissolved solids (TDS) levels of 120,000 to 180,000 mg/L prior to any thermal stage.
By shifting the heavy volume reduction burden away from thermal evaporators into membrane systems capable of operating up to 120–160 bar hydraulic pressures, facility owners routinely realize operational expenditure reductions between 40% and 65%. This thermodynamic optimization underpins robust Zero Liquid Discharge (ZLD) and Minimal Liquid Discharge (MLD) workflows globally.
Factory Testing Protocol: Every Tongjie membrane system undergoes 100% Factory Acceptance Testing (FAT) with hydraulic overpressure trials, automated safety interlock verification, and real-time sensor calibration at our Shanghai facility prior to worldwide shipment.
Integrated Separation Metallurgy & Protection
High-salinity brine environments present severe risk of localized crevice and pitting corrosion. Tongjie adheres to strict global engineering standards:
- High-pressure piping in Super Duplex 2507 (UNS S32750) & 1.4547 (254 SMO)
- Wetted parts passivated and pickling treated according to ASTM A380 standards
- Open-channel hydrodynamic spacers inhibiting scaling and particulate blockages
- Independent automated clean-in-place (CIP) and chemically enhanced backwash
Why International EPCs Partner with Tongjie China
Comprehensive vertical integration from Shanghai—encompassing skid frame fabrication, precision pipe spool welding, electrical control panel assembly, and international engineering code compliance.
Tier-1 Component Integration
We source core components directly through top-tier global industrial channels: Danfoss and FEDCO high-pressure isobaric energy recovery devices, Toray/DuPont membrane sheets, Grundfos booster pumps, and Siemens or Allen-Bradley programmable logic controllers (PLCs).
Cost Structure & Lead-Time Agility
By leveraging China's mature industrial ecosystem, Tongjie achieves up to 30–45% capital equipment savings compared to European or North American skid builders without sacrificing component quality, reducing project execution schedules to 8–12 weeks.
Bespoke White-Label Engineering
We provide full OEM and ODM services for international environmental solution providers. All deliverables, including system HMI interfaces, P&ID schematics, cable schedules, tag plates, and CE Declaration of Conformity documents, are fully branded to our clients' specifications.
Localized Applications & Global Macro Trends
From fracturing flowback in resource-constrained basins to chemical ZLD compliance in the European Union and Middle East desalination expansions.
Oil & Gas Flowback & Produced Brine
Field installations throughout Central Asia, Kazakhstan, and the Middle East treat unconventional fracturing flowback containing extreme dissolved solids and hydrocarbons. Tongjie skids achieve oil levels ≤5 mg/L and suspended solids ≤1 mg/L, enabling 100% reinjection compliance.
Flue Gas Desulfurization (FGD) ZLD
Thermal power generation facilities and metallurgical smelters utilize our high-pressure membrane concentration packages to concentrate FGD purge streams, eliminating chloride-induced corrosion hazards while separating mixed salts for crystalline industrial reuse.
Semiconductor & Microelectronics Ultrapure
Modern microfabrication facilities consume enormous quantities of pure water while facing strict wastewater recovery mandates. Tongjie provides RO-EDI trains achieving 18.2 MΩ·cm resistivity alongside specialized membrane degasification units for sub-ppb dissolved gas removal.
Turnkey Delivery & Cross-Border Compliance
Minimizing technical risk across the engineering lifecycle from Shanghai fabrication to remote desert or offshore site commissioning.
FAT & Comprehensive QA Dossiers
Our Quality Management System meets ISO 9001, ISO 14001, and ISO 45001 frameworks. Every deliverable comes complete with material test reports (EN 10204 3.1 MTRs), weld mapping, NDT/radiographic reports, hydrostatic pressure logs, and functional wiring test certifications.
Electrical & Hazardous Area Compliance
We configure electrical skid assemblies to conform with regional directives: CE (Low Voltage Directive and Machinery Directive), UL 508A control panels for the Americas, and ATEX / IECEx certified instrumentation and drive motors for hazardous oilfield environments.
Cloud-Linked SCADA & Remote Start-up
Tongjie integrates IoT edge gateways into each PLC system, allowing our Shanghai senior automation engineers to assist your regional commissioning team via secure VPN protocols. Real-time membrane flux tracking and predictive fouling alarms simplify ongoing operations.
Precision Separation & Specialized Water Purification Equipment
Custom-fabricated OEM membrane systems, degasification units, and ultra-high purity process equipment designed for global industrial deployment.
Frequently Asked Questions
Direct technical answers addressing system design, membrane selection, FAT inspection, and worldwide execution.