ISO 9001 / CE / ASME FABRICATION HUB

ODM Produced Water System Factories & Suppliers

Turnkey Heavy-Duty Oilfield Effluent, High-Salinity DTRO, and Fracturing Flowback Reuse Skids. Engineered in Shanghai for Worldwide Upstream Operators, EPCs, and Severe-Service Disposal Wells.

ENGINEERED MEMBRANE PORTFOLIO · PART I

Flagship Produced Water & High-Salinity Reclaim Systems

Explore our precision-fabricated membrane concentration arrays, zero liquid discharge skids, and ultra-high-pressure DTRO packages built to OEM/ODM specifications.

  • Wholesale High-Ratio Water Reuse Equipment from China Suppliers

    Wholesale High-Ratio Water Reuse Equipment from China Suppliers - Advanced Pretreatment, UF, and RO Factory Solutions

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  • OEM High-Salinity Wastewater Treatment System - ZLD Solutions

    OEM High-Salinity Wastewater Treatment System - ZLD Solutions from China Suppliers and Factory Manufacturers

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  • OEM High-Ratio Water Reuse Equipment from China Suppliers

    OEM High-Ratio Water Reuse Equipment from China Suppliers - Advanced Treatment Factory for High-Salinity Wastewater

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  • OEM High-Pressure DTRO&STRO Membrane Concentration System

    OEM High-Pressure DTRO&STRO Membrane Concentration System from China Suppliers for Wastewater Treatment

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  • Wholesale Deoxygenation Membrane Equipment Suppliers in China

    Wholesale Deoxygenation Membrane Equipment Suppliers in China - Factory Solutions for Effective Water Treatment

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  • China High-Efficiency Brine Concentration Systems from China Suppliers

    China High-Efficiency Brine Concentration Systems from China Suppliers - Advanced Factory Wastewater Solutions

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  • Wholesale Oilfield Fracturing Flowback Fluid Treatment System

    Wholesale China Suppliers Factory for Oilfield Fracturing Flowback Fluid Treatment System - Zero Discharge Solution

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  • CE Certification China Suppliers Factory Ultra-Pure Water System

    CE Certification China Suppliers Factory Ultra-Pure Water System for Semiconductor Manufacturing - 18.2 MΩ·cm

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ENGINEERING WHITE PAPER · SECTION 01

The Mechanics of Produced Water: Hydraulic Dynamics, Scaling Salts & Emulsified Hydrocarbons

Navigating complex upstream petrochemical effluent streams requires far more than generic membrane filtration. It demands full-spectrum process engineering designed around extreme chemical and physical variability.

Severe Chemical Loading & Salinity

Produced water and hydraulic fracturing flowback fluids frequently exhibit total dissolved solids (TDS) ranging from 35,000 mg/L to well over 220,000 mg/L. Uncontrolled ionic concentrations of barium (Ba²&spplus;), strontium (Sr²&spplus;), calcium (Ca²&spplus;), and silicate ions precipitate instantaneously upon pressure or pH shifts, destroying standard reverse osmosis spacers within hours.

  • Dynamic Langelier & Stiff-Davis Index Control
  • Selective Chemical Antiscalant Dosing Algorithms
  • Upstream Hardness Softening Integration

Emulsified Hydrocarbon Breaking

Free, dispersed, and chemically emulsified crude oils, combined with polyacrylamide (PAM) friction reducers and biocides, create impenetrable boundary layers on polyamide thin-film composite membranes. Our systems deploy specialized coalescence, induced gas flotation (IGF), and organoclay media to guarantee free oil content below 5 mg/L.

  • Oil & Grease Reduction to ≤ 5.0 mg/L
  • Ultra-low Silt Density Index (SDI ≤ 3.0)
  • Hydrocarbon-Resistant Membrane Chemistries

High-Recovery DTRO Concentration

When brine concentrations exceed osmotic pressure barriers of 70 bar, standard spiral-wound elements experience catastrophic feed-spacer channel clogging. Our disc-tube reverse osmosis (DTRO) modules operate up to 120–160 bar, utilizing open-channel hydraulic geometry with high-frequency shear to eliminate concentration polarization.

  • Operating Pressures up to 160 Bar (2,320 PSI)
  • Open-Channel Flow Pattern Prevents Fouling
  • Individual Disc Replacement Lowers Lifecycle OPEX
17+
Years Engineering Excellence
38+
Patents & IP Registrations
1,000+
Industrial Deployments
Class II
M&E & EPC Qualifications
GLOBAL VALUE PROPOSITION

The China Factory Advantage: Heavy-Duty Manufacturing & Supply Chain Dominance

How Shanghai Tongjie combines deep petrochemical metallurgy, component integration, and modular manufacturing to deliver 40%–60% CAPEX savings without sacrificing engineering tolerances.

Metallurgical Rigor & Anti-Corrosion Mastery

Super Duplex 2507 · Titanium Gr. 2 · 316L

Produced water containing several hundred thousand mg/L chlorides coupled with hydrogen sulfide (H&sub2;S) and carbon dioxide (CO&sub2;) rapidly corrodes conventional 304 or lower-grade stainless steels. Our Shanghai production facilities house automated orbital welding, passivation baths, and specialized helium leak-testing rigs for exotic alloys.

01

Wetted Parts in High Alloys

High-pressure manifolds, valve bodies, and pump wet-ends are specified in Super Duplex 2507 (PREN ≥ 42) or Titanium Grade 2, completely immunizing components against pitting and crevice corrosion.

02

ASME Section IX Certified Welders

All piping spools undergo 100% radiographic (RT) or dye-penetrant (PT) testing to comply with international high-pressure vessel standards and offshore vibration criteria.

Turnkey Containerization & FAT Testing

100% Pre-Commissioned · Plug & Play

Site installation in remote oilfields (e.g., the Permian Basin, GCC deserts, or West Siberia) incurs massive field labor costs. We fabricate complete produced water treatment systems inside ISO-certified, thermally insulated, blast-resistant shipping containers equipped with HVAC, gas detection, and automated fire suppression.

01

Full Factory Acceptance Testing (FAT)

Every system undergoes full-load hydraulic, electrical, and control loop verification with synthetic brine before leaving Shanghai, compressing site commissioning to less than 15 days.

02

Integrated Global Component Chains

While skid structures, pressure vessels, and automation cabinets are built in-house, we seamlessly integrate world-class tier-1 pumps (Danfoss, Cat Pumps), membranes (DuPont, Toray), and PLCs (Siemens, Allen-Bradley).

PROCUREMENT & CAPEX OPTIMIZATION

Meeting Global Enterprise Procurement Standards: Solved Pain Points

International EPC contractors, oil majors, and industrial concession holders operate under stringent commercial and operational risk matrices. Here is how our ODM manufacturing model directly de-risks capital equipment investments.

Procurement Pain Point Legacy Industry Standard Tongjie Engineered ODM Solution Direct Operational Benefit
Prolonged Equipment Delivery Lead Times Western/European OEMs quote 36–54 weeks due to subcontracted fabrication bottlenecks. Vertically integrated fabrication with in-house structural, piping, and assembly bays delivering in 12–18 weeks. 60% Faster Project Commercialization
Unscheduled Downtime from Membrane Scaling Standard spiral RO elements fail within 1–3 months in produced water with TDS > 50,000 mg/L. High-shear DTRO and STRO modules featuring wide open-channel flow patterns that eliminate feed spacer fouling. Membrane Lifespan Extended to 3+ Years
High Deep-Well Disposal Costs (SWD) Trucking millions of barrels of water to commercial saltwater disposal wells ($1.50–$3.50/bbl). On-site modular container systems recovering up to 85% clean water for hydraulic fracturing reuse or reinjection. Disposal Cost Cut by 70%–80%
Explosive / Hazardous Environment Demands Standard industrial components requiring expensive retrofits to meet field safety codes. Fully engineered skids built to ATEX, IECEx, and NEC Class 1 Division 1 or Division 2 explosion-proof standards. Seamless Wellhead & Battery Integration
Post-Delivery Support & Spare Parts Lock-In Proprietary consumables priced at exorbitant markups with slow international dispatch. Open-architecture mechanical design utilizing universal standard consumables and guaranteed spare parts dispatch. OPEX Consumables Savings of > 45%
NEXT-GENERATION ROADMAP

Technological Paradigms Driving Produced Water Treatment

From digital twin remote optimization to hybrid thermal-membrane concentration, the produced water sector is transitioning from simple disposal to high-value industrial resource recovery.

AI-Enabled Industrial IoT & Remote Scada

Modern upstream operators operate unmanned or minimally staffed well pads. Our produced water packages feature native edge computing PLCs connected to cloud diagnostic dashboards. Machine learning algorithms continuously monitor trans-membrane pressure (TMP), differential pressure (ΔP), and feed temperature to trigger automated Clean-in-Place (CIP) sequences before irreversible scaling occurs.

Energy Recovery Devices (ERD) Optimization

Operating high-pressure pumps at 90–140 bar requires massive electrical input. We integrate isobaric pressure exchangers (PX) and turbochargers directly into our DTRO skid manifolds. By recovering up to 96% of the hydraulic energy from the high-pressure concentrate stream, we slash specific energy consumption to under 3.5–4.8 kWh per cubic meter of treated water.

Hybrid Membrane-MVR Crystallization (ZLD)

Where environmental discharge mandates zero liquid discharge (ZLD), thermal evaporation alone is prohibitively expensive. Our hybrid process train utilizes DTRO to concentrate the brine up to 140,000–180,000 mg/L TDS, slashing the volumetric burden on downstream Mechanical Vapor Recompression (MVR) evaporators and crystallizers by 75%.

DEPLOYMENT MATRICES

Worldwide Localized Application Scenarios

Engineered configurations tailored to regional geologies, regulatory regimes, and environmental extremes across major global hydrocarbon basins.

North America · Permian / Bakken

Unconventional Shale Frac Flowback Reuse

Rapid treatment of high-volume fracturing return fluid containing friction reducers and suspended clays. The system delivers clarified, softened brine ideal for blending next-generation slickwater fracs, avoiding expensive freshwater acquisition.

Middle East · GCC Deserts

Arid Enhanced Oil Recovery (EOR) Reinjection

Operating reliably in 55°C ambient temperatures. High-temperature RO and deoxygenation modules strip dissolved O&sub2; to ≤ 10 ppb and remove sulfate ions to prevent wellbore reservoir souring and barium sulfate plugging during EOR water flooding.

Central Asia · Kazakhstan / Siberia

Sub-Zero Wellhead Produced Water Treatment

Enclosed inside fully winterized, heated, and insulated ISO shelters rated for -40°C operations. Equipped with dual-redundant heating, trace heating on all external headers, and remote satellite communication links for unmanned operation.

Offshore · FPSO / Fixed Platforms

Footprint-Constrained Overboard Discharge

Compact, lightweight skids engineered to meet stringent OSPAR standards (< 30 mg/L dispersed oil in water). Built with explosion-proof Zone 1 electrical cabinets, high-torque titanium piping, and structural load distributions tailored for floating hulls.

REGULATORY ASSURANCE & FIELD SUPPORT

Compliance Framework & Overseas Engineering Support

Purchasing from an offshore manufacturer requires uncompromised confidence in local regulatory approval, code compliance, and boots-on-the-ground engineering assistance.

Turnkey Engineering Dossiers & Validation

We supply complete engineering documentation packages according to international EPC project gates: Process Flow Diagrams (PFD), Piping & Instrumentation Diagrams (P&ID) in native AutoCAD/SmartPlant formats, comprehensive mass and energy balances, single-line electrical diagrams, structural calculation sheets, and complete validation protocols (IQ/OQ/PQ).

Global Standards Conformity

Our manufacturing and quality assurance workflows strictly align with the world's most rigorous petroleum and water treatment regulations, ensuring turnkey permitting across all jurisdictions:

  • US EPA Clean Water Act (CWA) & Class II Underground Injection (UIC)
  • OSPAR Convention Standards for Marine Environmental Protection
  • CE Machinery, Low Voltage & Pressure Equipment Directives (PED)
  • Saudi Aramco Engineering Standards (SAEP) & ADNOC Approved Specs

On-Site Commissioning & Global Service

Our overseas service engineers hold BOSIET (offshore), H2S Alive, and international safety certifications. We dispatch dedicated field commissioning teams to support site hookup, verify communications with central DCS systems, conduct client operator training, and oversee performance guarantee runs on live raw oilfield brine.

TECHNICAL FAQ

Produced Water System Procurement & Engineering Q&A

In-depth technical answers addressing membrane chemistry, pre-treatment strategies, metallurgy, and ODM manufacturing protocols.

What are the exact raw water chemical parameters needed to design a custom produced water system?
To generate an accurate process simulation and mass balance, our process engineering team requires:
1. Total Dissolved Solids (TDS) and individual ion speciation (specifically Na+, Ca²+, Mg²+, Ba²+, Sr²+, Fe²+/Fe³+, Cl−, SO&sub4;²−, HCO&sub3;−, and reactive SiO&sub2;).
2. Hydrocarbon metrics: Free Oil & Grease (O&G), Total Petroleum Hydrocarbons (TPH), and Chemical Oxygen Demand (COD).
3. Physical characteristics: Total Suspended Solids (TSS), Silt Density Index (SDI&sub1;&sub5;), Turbidity (NTU), operating temperature range, and dynamic pH.
4. Operating goals: Desired product water capacity (m³/day or bpd), target recovery percentage, and end-use destination (Class II reinjection, agricultural discharge, slickwater frac reuse, or boiler feed water).
Why choose Disc Tube Reverse Osmosis (DTRO) instead of conventional spiral-wound membranes for produced water?
Conventional spiral-wound elements utilize narrow mesh feed spacers (typically 28 to 34 mil) that act as physical traps for suspended solids, scale crystals, and oil droplets, resulting in rapid irreversible differential pressure spikes (ΔP). In contrast, DTRO utilizes an open-channel hydraulic chamber with disc spacers that create radial turbulent cross-flow over circular membrane cushions. This design minimizes boundary layer concentration polarization, accommodates suspended solids up to an SDI > 5, operates up to pressures of 120–160 bar, and allows individual replacement of damaged membrane cushions rather than scrapping an entire 8-inch pressure vessel element.
How does Tongjie ensure complete oil removal upstream of sensitive RO membranes?
We deploy a multi-barrier pretreatment train: raw produced water first enters an API-type oil-water separator or Corrugated Plate Interceptor (CPI) for bulk free oil skimming, followed by an Induced Gas Flotation (IGF) or Dissolved Air Flotation (DAF) unit with micro-bubble generation to lift emulsified droplets. The stream then passes through an organoclay / modified walnut shell filter to adsorb trace soluble hydrocarbons, followed by ultrafiltration (UF) or ceramic membrane barriers. This ensures the feed stream reaching the high-pressure RO or DTRO stage maintains Oil & Grease ≤ 5 mg/L and TSS ≤ 1 mg/L.
Can your skids be certified for Hazardous Area (Class 1 Div 1 / Div 2 or ATEX Zone 1 / Zone 2) operation?
Yes. Our electrical and automation engineering division designs systems for hazardous atmospheres per client specifications. Skid-mounted electrical motors feature explosion-proof enclosures (Ex d / Ex de), instruments and transmitters are specified with intrinsic safety barriers (Ex i), local junction boxes are stainless steel IP66/NEMA 4X rated, and main control panels can be housed inside positive-pressure purged enclosures (NFPA 496 Type X or Type Z purge) with automatic combustible gas detection and interlocked emergency shutdown (ESD) relays.
What is the typical manufacturing lead time for a custom 1,000 m³/day containerized produced water system?
Standard engineering design and client P&ID approval typically take 2 to 3 weeks. Procurement of long-lead raw materials (such as Super Duplex alloy forgings and specialized high-pressure pumps) proceeds concurrently. Skid fabrication, automated orbital welding, assembly, and electrical wiring occur in weeks 4 through 10. Weeks 11 and 12 are dedicated to factory hydrostatic testing, control loop simulation, and wet Factory Acceptance Testing (FAT). Standard sea-freight dispatch occurs within 12 to 14 weeks from initial deposit and engineering sign-off, beating Western industry benchmarks by more than 50%.
Do you offer white-label or private-label ODM services for international water treatment OEMs and EPCs?
Yes. A significant portion of our Shanghai factory output is dedicated to private-label manufacturing for global water treatment brands, engineering houses, and EPC contractors. We can build entirely to your proprietary engineering standards, apply custom industrial coatings and corporate color schemes, incorporate your branded stainless steel nameplates, and format all operation manuals, P&IDs, and HMI software interfaces with your corporate brand identity while maintaining strict non-disclosure agreements (NDAs).
ENGINEERED MEMBRANE PORTFOLIO · PART II

Specialized Industrial, Desalination & Flowback Treatment Systems

Explore our full line of containerized seawater RO systems, ultrapure semiconductor skids, and custom oilfield fracturing flowback treatment solutions.

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  • CE Certification Containerized Seawater Desalination Plants

    CE Certification Containerized Seawater Desalination Plants Supplier & Manufacturer

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  • CE Certification China Oilfield Fracturing Flowback Fluid Treatment System

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  • Wholesale Fracturing Flowback Water Reuse Treatment Equipment

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  • China Ultra-Pure Water System for Semiconductor & Electronics

    China Ultra-Pure Water System for Semiconductor & Electronics - Reliable Industrial Factory Solutions

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