CE Certified • ISO 9001 / 14001 / 45001 • 38+ Technical Patents

CE Certification Smart Water Management Solutions Factory & Manufacturer

Pioneering industrial membrane engineering, AI-driven zero liquid discharge (ZLD), containerized SWRO desalination, and closed-loop wastewater recycling for resilient global infrastructure.

Precision Engineering Portfolio • Phase I

Engineered High-Salinity, Desalination & Pure Water Skids

Direct from our specialized Shanghai manufacturing facility, every system is prefabricated, pressure-tested, and factory acceptance tested (FAT) to EU harmonized standards prior to worldwide export.

Industrial Landscape • Macro Trends

The Global Paradigm Shift Toward Autonomous, Zero-Discharge Water Infrastructure

Worldwide industrial facilities are confronting unprecedented regulatory pressure and hydrological volatility. Traditional water treatment setups—predicated on disconnected analog sensors, manual chemical dosing, and unmonitored effluent release—are no longer economically viable under strict mandates such as the European Union Industrial Emissions Directive (IED 2010/75/EU) and China's Action Plan for Prevention and Control of Water Pollution.

Shanghai Tongjie Environmental Protection Technology Co., Ltd. leads this structural transition. Established in 2010 as a National High-Tech Enterprise and Recognized Specialized Enterprise, Tongjie merges precision membrane separation physics with advanced industrial telemetry. In modern heavy industries, high energy consumption and biofouling-induced shutdowns can destabilize multi-million-dollar production lines. We design smart, CE-certified water treatment plants that operate with real-time predictive adjustments, autonomous anti-scaling protocols, and closed-loop brine concentration to minimize total lifecycle expenditure (TotEx).

Dynamic Predictive Control Real-time Permeate Conductivity < 5 μS/cm Up to 98% Recovery Ratio Harmonized EU Machinery Directives

Operational Benchmark: Conventional vs. Smart Industrial Systems

Based on longitudinal telemetry from over 1,000 global installations, comparing legacy systems against Tongjie's algorithmically modulated smart membrane systems yields measurable operational advantages:

  • Energy Consumption: Up to 32% lower specific energy consumption (kWh/m³) via isobaric Energy Recovery Devices (ERDs) and variable-frequency hydraulic modulation.
  • Membrane Replacement Cycle: Extended by 2.4× using autonomous Transmembrane Pressure (TMP) trend monitoring and non-destructive automated CIP triggers.
  • Downtime Mitigation: 99.4% mean plant uptime attained via redundant edge computing nodes and remote diagnostics across 15+ countries.
17+

Years Engineering Excellence

38+

Invention & Utility Patents

1,000+

Global Systems Commissioned

100%

Factory Pre-Tested & CE Certified

Technical Architecture • Regulatory Compliance

Algorithmic Process Controls and Multi-Directive CE Compliance

Tongjie's smart water platforms integrate electrical, hydraulic, and structural systems engineered to comply rigorously with harmonized European standards.

Algorithmic Edge Computing & SCADA

Our systems deploy Siemens S7-1500 or Rockwell Automation PLCs integrated with edge-computing modules. Real-time feed stream variations (pH, conductivity, oxidation-reduction potential, turbidity, temperature) are dynamically parsed to regulate high-pressure pumping, antiscalant stoichiometric delivery, and cross-flow velocities in millisecond loops.

  • Modbus-TCP, Profinet, and OPC-UA connectivity
  • Cloud-synchronized Digital Twin diagnostic mirrors

Full Harmonized CE Compliance

Every export skid is manufactured under verified factory production controls adhering to EU Directives: Machinery Directive 2006/42/EC, Low Voltage Directive (LVD) 2014/35/EU, and Electromagnetic Compatibility (EMC) 2014/30/EU. Pressure vessels and high-pressure manifolding conform to the Pressure Equipment Directive (PED) 2014/68/EU.

  • Third-party certified documentation & traceability
  • Duplex/Super Duplex stainless steel (2205/2507) welds

Advanced Membrane Topologies

We leverage high-performance membrane geometries matched to raw water characteristics: Disc Tube Reverse Osmosis (DTRO) and Spacer Tube RO (STRO) for raw salinities exceeding 120,000 mg/L TDS, Osmotically Assisted Reverse Osmosis (OARO) for energy-efficient near-saturation concentration, and Spiral-Wound multi-pass arrays.

  • Hydraulic operating pressures up to 160 bar
  • Physical deoxygenation & degassing integration
Turnkey Field Execution • Sector-Specific Engineering

Engineered Process Trains for Demanding Industrial Sectors

Different industries present unique feed water chemistry challenges, requiring customized pretreatment, separation chemistry, and crystallization sequences.

Oil & Gas Produced Water & Fracturing Fluids

Complex fracturing flowback and produced fluids contain high suspended solids, free emulsified hydrocarbons, and scaling ions (barium, strontium). Our skids integrate hydrocyclone oil separation, ceramic microfiltration, and DTRO, ensuring treated reinjection or fracturing reuse reaches ≤5 mg/L oil and ≤1 mg/L SS.

Reinjection & ZLD Reuse

Coal-Chemical & Heavy Chemical ZLD

High-chemical oxygen demand (COD) and scaling brine threaten crystallizers with premature fouling. Tongjie deploys softening pretreatment, advanced catalytic oxidation, multi-stage OARO brine concentration, and mechanical vapor recompression (MVR) evaporators to yield pure industrial-grade dry salts and 95%+ reusable distillate.

NaCl & Na2SO4 Fractional Recovery

Semiconductor & Electronics UPW

Semiconductor fabrication demands Ultrapure Water (UPW) reaching 18.2 MΩ·cm resistivity at 25°C with sub-ppb trace ions, TOC < 1 ppb, and zero dissolved oxygen. Our integrated process trains deploy dual-pass RO, physical membrane degassing contactors, continuous electrodeionization (EDI), and mixed-bed resin polishing.

18.2 MΩ·cm Resistivity

Pharma & Food Grade Purified Water

Engineered to conform with cGMP, FDA, and European Pharmacopoeia (EP) monographs. Features 316L stainless steel orbital-welded piping, zero dead-leg design, online conductivity and TOC monitoring, continuous automated sanitization protocols, and 21 CFR Part 11 electronic batch record compliance for traceable audits.

cGMP & EP Standards Compliant
Research & Engineering Trajectory

Smart Water Management Technology Roadmap (2025–2035)

Shanghai Tongjie invests over 8% of annual capital revenue into advanced membrane fluid dynamics, biomimetic separation layers, and self-optimizing closed-loop software architectures:

  • Phase I (Current): Industrial IoT edge analytics, dynamic flux balancing, predictive scaling prevention algorithms, and containerized hybrid solar-powered SWRO skids.
  • Phase II (2026–2030): Forward Osmosis (FO) and Membrane Distillation (MD) commercialization, reducing thermal zero liquid discharge energy demand by an additional 35%.
  • Phase III (2030+): Autonomous "Lights-Out" water plants featuring AI self-healing membranes, adaptive hydraulic self-cleaning, and zero-carbon resource recovery ecosystems.
Future-Proofed Manufacturing

Why Global EPCs Choose Tongjie as Their Long-Term OEM/ODM Partner

Navigating global supply chain friction requires a manufacturing partner that operates beyond simple component assembly. Tongjie's 10,000+ m² production complex houses automated pipe cutting, automated orbital argon welding, precision pressure vessel manufacturing, electrical control panel assembly, and comprehensive hydraulic test bays capable of simulating extreme salinities up to 150,000 ppm TDS.

Our integrated engineering delivery model ensures the exact specialized engineering team calculating your raw water mass-balance models oversees skid fabrication, wiring, FAT verification, and overseas commissioning. This end-to-end oversight eliminates common site startup delays, delivering field-ready containerized and skid-mounted water infrastructure.

Class II M&E Installation Qualified Class II Environmental Engineering Certified Full FAT Hydraulic Simulation
Technical Clarifications • Engineering Inquiry

Frequently Asked Engineering & Procurement Questions

Detailed technical answers to common queries submitted by industrial project developers, procurement officers, and EPC consultants.

What parameters are required to size a customized CE-certified membrane system?

To deliver an accurate process train and mass balance, our engineering department requires a complete raw water analysis report detailing Total Dissolved Solids (TDS), conductivity, specific ionic species (calcium, magnesium, barium, strontium, silica, sulfate, and chlorides), chemical oxygen demand (COD), total organic carbon (TOC), turbidity or Silt Density Index (SDI), and feed water temperature ranges. Clients should also state desired capacity (m³/day or GPD), product water purity specs (potable, boiler feed, UPW resistivity), target recovery percentages, and available on-site electrical parameters (e.g., 380V/440V/480V, 50/60 Hz).

How does Tongjie's DTRO technology differ from traditional spiral-wound membranes in high-salinity applications?

Traditional spiral-wound reverse osmosis elements utilize narrow feed spacer mesh that traps suspended solids, colloidal particles, and precipitated mineral salts, leading to severe biofouling and irrecoverable concentration polarization when handling feed water with high SDI or TDS exceeding 45,000 mg/L. Tongjie's Disc Tube Reverse Osmosis (DTRO) features an open-channel hydraulic geometry. Feed water flows radially across open disk-spaced membrane cushions driven by high-velocity crossflow. This design minimizes scaling, allows operation up to 90–160 bar, enables easy mechanical disassembly, and accepts feed water with significantly higher turbidity and scaling tendencies.

How does the system ensure zero liquid discharge (ZLD) compliance for chemical wastewater?

Tongjie implements a progressive multi-barrier ZLD methodology. Feed streams undergo chemical softening, coagulation, and clarification to strip multivalent scaling ions (hardness < 20 mg/L, silica < 5 mg/L), followed by multimedia and ultrafiltration. Next, high-recovery membrane concentration skids (DTRO / STRO / OARO) concentrate the brine to near saturation (120,000–180,000 mg/L TDS), reducing liquid volume by over 80–90%. This concentrated stream enters our automated Mechanical Vapor Recompression (MVR) evaporators and crystallizers, producing dry salt cake for industrial resale or safe disposal while returning pure condensate back into the facility's water loop.

What documentation and testing standards accompany overseas CE-certified export shipments?

All systems are supplied with a complete quality assurance dossier, including the official CE Declaration of Conformity under Directives 2006/42/EC, 2014/35/EU, 2014/30/EU, and 2014/68/EU (PED). We provide raw material Mill Test Certificates (MTC EN 10204 3.1) for all stainless steel and duplex components, non-destructive welding inspection reports (X-ray/dye-penetrant), hydrostatic pressure test logs, electrical insulation tests, calibration certificates for instrumentation, and factory acceptance test (FAT) operational logs. Complete 2D/3D P&ID schematics, single-line electrical diagrams, and operating & maintenance manuals are delivered in English.

What lead times are typical for containerized seawater desalination and pure water systems?

Standard containerized seawater desalination units (capacities from 50 m³/day to 1,000 m³/day) and pre-engineered pure water skids have an engineering and fabrication lead time of approximately 35 to 60 days. Highly customized, multi-barrier industrial wastewater and ZLD systems requiring exotic metallurgy (Hastelloy, Titanium, Super Duplex 2507) and tailored automated SCADA packages typically require 75 to 110 days. Pre-packaged containerized systems arrive on-site with all internal piping, power distribution, and instruments fully installed, allowing commissioning within 7 to 15 days after utility connection.

Advanced Separation • Phase II

Specialized Membrane, Degassing & Ultrapure Water Systems

Explore our full line of specialized membrane systems, including high-pressure DTRO skids, membrane deoxygenation contactors, and semiconductor-grade ultrapure water plants.