ISO 9001 / ISO 14001 / CE Certified Industrial Solutions

CE Certification Produced Water Solutions Factories & Suppliers

High-Precision Membrane Separation, Zero Liquid Discharge (ZLD) Systems, and Heavy-Industrial Water Treatment Engineered with Chinese Industry 4.0 Supply Chain Resilience.

High-Efficiency Treatment Skids & Modular Systems

Explore our core CE-certified industrial water purification, high-salinity brine concentration, and membrane reuse skids manufactured to global EPC specifications.

ODM China Food & Beverage Water Purification System
ODM China Food & Beverage Water Purification System - Leading Suppliers & Factory for Safe, Compliant Water Manufacturers, Manufacturer
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OEM High-Ratio Water Reuse Equipment from China Suppliers
OEM High-Ratio Water Reuse Equipment from China Suppliers | Factory Solutions for High-Salinity Industrial Wastewater Factories, Manufacturer
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China High Salinity Brine Concentration System
China High Salinity Brine Concentration System - Osmosis-Assisted Technology from China Suppliers & Factory Supplier, Manufacturers
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ODM High-Pressure Membrane Concentration System
ODM High-Pressure Membrane Concentration System for High-Salinity Wastewater - China Suppliers & Factory Solutions Factories, Manufacturers
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ODM OEM Precision Manufacturing Environmental Water Treatment
ODM OEM Precision Manufacturing: Leading China Suppliers and Factory for Customized Environmental Water Treatment Solutions Factories, Factory
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ODM OEM Precision Manufacturing Factories
ODM OEM Precision Manufacturing Factories, Manufacturer
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OEM Eco-Friendly Water Treatment Solutions
OEM Eco-Friendly Water Treatment Solutions from China ODM Suppliers - Tailored by Our Expert Factory Supplier, Manufacturer
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OEM Compact Reverse Osmosis Seawater Desalination System
OEM Compact Reverse Osmosis Seawater Desalination System - China Suppliers & Factory for Freshwater Solutions Supplier, Manufacturer
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17+
Years Industry Engineering
38+
Patents & IP Registrations
100%
Factory FAT Pre-Testing
1000+
Global Industrial Deployments

Executive Synthesis: Produced Water Processing & CE Regulatory Mandates

Produced water represents the largest single volume byproduct stream generated across the global hydrocarbons, petrochemical extraction, and heavy manufacturing sectors. Characterized by complex, highly variable physicochemical profiles—ranging from extreme Total Dissolved Solids (TDS exceeding 150,000 mg/L), hazardous volatile organic compounds (BTEX, phenols), free and emulsified hydrocarbons, to aggressive scale-forming divalent cations and Naturally Occurring Radioactive Materials (NORM)—the management of this liquid effluent has transitioned from an environmental overhead into a core technological driver of global resource efficiency and ESG compliance.

In international commerce, particularly across the European Economic Area, the Middle East, Central Asia, and offshore concession zones, compliance with the European Conformity (CE) standard is an uncompromising prerequisite for operational licensing. Sourcing CE-certified produced water systems guarantees adherence to stringent structural safety, pressure integrity, and automated operational stability governed by the Machinery Directive 2006/42/EC, Pressure Equipment Directive (PED) 2014/68/EU, Electromagnetic Compatibility (EMC) Directive 2014/30/EU, and explosive atmosphere safety protocols under ATEX Directive 2014/34/EU.

Engineering Criterion: Tongjie combines multi-stage pre-coalescence de-oiling, catalytic chemical softening, open-channel Disc Tube Reverse Osmosis (DTRO), and Mechanical Vapor Recompression (MVR) thermal crystallization into fully containerized, skid-mounted systems. This integrated process train delivers reinjection effluent containing ≤5 mg/L residual oil and ≤1 mg/L suspended solids, with zero hydraulic loss to the local biosphere.

Macro Industry Solutions: Targeted Engineered Process Trains

Feed chemistry dictates system design. Our modular systems adapt to varying chemical, thermal, and mechanical stresses across core process sectors.

Upstream Oil & Gas / Shale Plays

Engineered for high-volume hydraulic fracturing flowback and aging reservoir water floods. Eliminates scaling ions (barium, strontium, calcium) and suspended colloids to enable infinite loop frac reuse or reinjection compliance.

  • Hydrocarbon separation ≤ 5 mg/L
  • Severe scale mitigation via softening
  • Rapid 15-day modular deployment

Offshore Platforms & FPSO Vessels

Ultra-compact, footprint-optimized titanium and super-duplex skid designs built for motion stability, salt spray resistance, and continuous unmanned operation under stringent marine safety codes.

  • Super Duplex 2507 metallurgy
  • ATEX Zone 1 / Zone 2 compliance
  • Minimum spatial envelope

Coal-to-Chemical & Petrochemical ZLD

High-temperature, high-COD wastewater treatment combining non-thermal membrane concentration with energy-efficient mechanical evaporation to achieve dry solid salt cake recovery.

  • Zero Liquid Discharge recovery (>98%)
  • High-salinity brine concentration
  • Byproduct salt fraction crystallization

China Factory 4.0: Supply Chain Resilience, Precision & Capex Efficiency

Combining world-class component supply chains, automated CNC fabrication, and comprehensive digital quality assurance to deliver superior membrane engineering at lower lifecycle costs.

High-Density Component Sourcing

Direct tier-1 strategic partnerships with world-class membrane, high-pressure pump, and instrumentation foundries eliminate intermediary markups, slashing capex by 25–40% without compromising material traceability.

Robotic Orbital Welding & NDT

Precision automated orbital TIG welding for all high-pressure manifolds (SS316L, Duplex 2205, Super Duplex 2507). 100% radiographic, dye penetrant, and hydrostatic pressure testing to ASME Section VIII standards.

Modular Skid Prefabrication

All piping, cabling, drives, and PLC controls are factory integrated into ISO container frames. Eliminates site civil work, drastically cutting on-site installation risk, labor overhead, and commissioning lead time.

Digital Twin Simulation & FAT

Every train undergoes continuous Factory Acceptance Testing (FAT) with simulated raw water chemistry in our Shanghai testing facilities. Real-time SCADA loop validation ensures complete out-of-the-box readiness.

End-to-End Produced Water Process Architecture

A multi-barrier engineered sequence designed to handle high fouling, sudden chemical shocks, and extreme salinity swings.

01

Primary Hydrocarbon De-oiling & Coalescence Separation

Raw flowback enters hydrocyclone sand separators to eliminate coarse drill cuttings, followed by Induced Gas Flotation (IGF) and coalescing plate matrix separators. Removes free oil and downhole chemicals, driving effluent free hydrocarbon concentration below 10 mg/L to prevent downstream membrane blinding.

02

Chemical Hardness & Silica Precipitation (Softening)

Dosing with sodium hydroxide (NaOH), sodium carbonate (soda ash), and specialized coagulants precipitates calcium, magnesium, barium, and strontium sulfates/carbonates. High-rate lamella clarifiers or tubular crossflow microfiltration membranes strip suspended solids down to <1 NTU turbidity, stabilizing the Langelier Saturation Index (LSI).

03

High-Pressure Open-Channel Membrane Concentration (DTRO)

Feed flows into specialized Disc Tube Reverse Osmosis (DTRO) modules operating at 90 to 160 bar hydraulic pressures. The wide open-feed spacer and radial hydrodynamic design resist scale adhesion and biofouling, concentrating feed TDS from 35,000 mg/L to over 120,000 mg/L while recovering pure permeate for boiler feed or site reuse.

04

Thermal Zero Liquid Discharge (MVR Evaporation & Crystallization)

Hyper-saline concentrate enters Mechanical Vapor Recompression (MVR) falling film evaporators. Vapor recompression saves up to 80% electrical equivalent versus single-effect boilers. Slurry is spun in centrifuges to extract crystalline industrial salts (NaCl/Na2SO4) for safe landfill or industrial chlor-alkali valorization.

Localization Support, Global Procurement & CE Regulatory Guarantee

Engineered to mitigate risk for international procurement teams, EPC contractors, and multinational plant operators.

Full CE Certification Dossier

Every system ships with complete EU technical files: Machinery Directive (2006/42/EC), PED pressure calculations (2014/68/EU Module H/H1), Low Voltage Directive, and third-party notified body declarations.

Localized Engineering Standards

Designs adapt seamlessly to regional codes: ASME B31.3 piping, NACE MR0175/ISO 15156 sour service metallurgy, IEC/NEMA electrical layouts, and country-specific reinjection/environmental discharge thresholds.

Global Telemetry & Field Support

Edge-computing remote telemetry systems monitor differential pressures, permeate flow, and membrane scaling rates 24/7. Backed by factory-trained field engineers for swift commissioning in EMEA, APAC, and the Americas.

Frequently Asked Questions: Technical & Procurement Specifications

Detailed insights into operating parameters, membrane longevity, and international compliance requirements.

What specific European Directives must be fulfilled for CE certification of produced water skids?
For industrial produced water treatment skids, CE certification requires conformity across several harmonized standards: the Machinery Directive 2006/42/EC for moving assemblies, structural frames, and emergency stops; the Pressure Equipment Directive (PED) 2014/68/EU governing pressure vessels, membrane housings, piping manifolds, and safety relief devices above 0.5 bar; the Electromagnetic Compatibility (EMC) Directive 2014/30/EU for automated PLC control cabinets; and, where hydrocarbons generate hazardous vapor spaces, the ATEX Directive 2014/34/EU (EN 60079 series) to ensure explosion-proof instrumentation and motor enclosures.
How does Disc Tube Reverse Osmosis (DTRO) handle heavy fouling and high salinity better than spiral-wound RO?
Traditional spiral-wound reverse osmosis elements rely on narrow mesh feed spacers that trap colloidal particulates, oil droplets, and bio-slime, triggering irreversible concentration polarization and pressure drop runaway. In contrast, DTRO (Disc Tube Reverse Osmosis) features an open-channel hydrodynamic design where individual circular membrane cushions are stacked between hydraulic disc plates. Feed water is directed over the membrane surface at high velocity with continuous turbulence, preventing foulant cake formation and permitting operation at up to 160 bar pressure with feed Silt Density Index (SDI) values significantly higher than spiral limits.
What metallurgy is utilized to prevent pitting, crevice corrosion, and stress corrosion cracking in high-chloride brine?
In produced water containing chloride levels from 20,000 to over 120,000 mg/L at elevated temperatures, standard austenitic stainless steels (SS304/SS316L) rapidly fail due to chloride-induced stress corrosion cracking. Tongjie specifies Duplex 2205 (UNS S32205) for moderate salinity stages and Super Duplex 2507 (UNS S32750) with a Pitting Resistance Equivalent Number (PREN) ≥ 42 for high-pressure membrane manifolds. For extreme acid gas/H2S environments, Hastelloy C-276 or Titanium Grade 2 is utilized across heat exchangers and thermal reboilers to guarantee a 20+ year asset service life.
Can Tongjie containerized produced water systems achieve unmanned autonomous operation in remote oilfields?
Yes. Our containerized skids are equipped with Siemens or Allen-Bradley programmable logic controllers (PLCs) interfaced with industrial cloud telemetry via satellite, 4G/5G, or fiber-optic SCADA. Automated routines manage self-cleaning media backwashes, anti-scalant chemical dosing proportional to mass flow, clean-in-place (CIP) membrane flushes, and emergency fail-safe shutdowns. Remote operators can monitor feed conductivities, differential pressures across membrane passes, and effluent hydrocarbon content in real time from regional operations centers.
What are the lead times and shipping formats for modular containerized treatment plants?
Standard containerized systems (ranging from 100 m³/day to 2,500 m³/day per unit train) typically have a fabrication and FAT cycle of 8 to 12 weeks. Systems are built into CSC-certified standard 20-foot or 40-foot high-cube sea containers, thermal-insulated and climate-controlled. They ship as standard container freight directly from the Port of Shanghai, allowing rapid deployment to desert, offshore, or high-altitude sites with minimal on-site civil works.

Engineered Systems, Desalination Plants & ZLD Hardware

Review our specialized seawater reverse osmosis, fracturing flowback recycling, and precision semiconductor ultrapure water units built for multinational deployment.

OEM China Suppliers Factory Compact Seawater Desalination Equipment
OEM China Suppliers Factory Compact Seawater Desalination Equipment for Small-Scale Freshwater Applications Supplier, Manufacturers
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ODM High-Salinity Wastewater Treatment System
ODM High-Salinity Wastewater Treatment System | China Suppliers & Factory for ZLD Solutions Suppliers, Manufacturers
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CE Certification Electronic Ultra-Pure Water System
CE Certification China Suppliers Factory Electronic Ultra-Pure Water System for Semiconductor & Microelectronics with 18.2 MΩ·cm Resistivity Factories, Manufacturer
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Wholesale China Factory-Integrated Containerized Seawater Desalination Plants
Wholesale China Suppliers of Factory-Integrated Containerized Seawater Desalination Plants for Off-Grid Solar Solutions Factories, Manufacturer
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OEM Fracturing Flowback Water Reuse Treatment Equipment
OEM China Suppliers Factory Fracturing Flowback Water Reuse Treatment Equipment for Oil & Gas Field Operations Manufacturers, Manufacturer
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Wholesale OEM Precision Manufacturing Environmental Water Treatment
Wholesale OEM Precision Manufacturing in China - Leading Suppliers & Factory for Customized Environmental Water Treatment Solutions Factories, Factory
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OEM High-Efficiency Brine Concentration Systems
OEM High-Efficiency Brine Concentration Systems from China Suppliers | Membrane-Based Factory Solutions Factory, Manufacturers
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Wholesale Compact Seawater Desalination System
Wholesale Compact Seawater Desalination System - Efficient China Suppliers & Factory Solutions for Freshwater Needs Factories, Supplier
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