High-Performance Marine & Demineralized Purification Systems
Engineered for extreme recovery, corrosion resistance in marine environments, and full European Union CE compliance.
The Paradigm Shift in Seawater Purification: Global Trends & Sourcing
Escalating global freshwater stress, stringent coastal discharge mandates, and high energy tariffs have pushed municipal utilities, offshore operators, and chemical megaprojects toward high-recovery, low-OPEX desalination solutions.
Pressure Exchanger Integration
Modern procurement contracts mandate isobaric energy recovery devices (ERD), recycling hydraulic energy from concentrated reject streams with up to 98% efficiency to dramatically reduce kilowatt consumption.
Super Duplex Metallurgy
To resist localized pitting and crevice corrosion under high chloride stress (TDS > 45,000 ppm), high-pressure manifolds, pump internals, and valve trains are fabricated using 2507 Super Duplex Stainless Steel.
Integrated Safety & CE Norms
Strict European Directives dictate mechanical and electrical safety: Pressure Equipment Directive (PED 2014/68/EU), Machinery Directive (2006/42/EC), and Low Voltage Directive (2014/35/EU) are mandatory for global acceptance.
Macro Industry Water Treatment Architectures
Different feed salinity profiles, organic loadings, and output requirements require purpose-built separation technologies engineered from proven pilot data.
Island & Coastal Potable Desalination
Decentralized containerized SWRO units configured with multi-barrier ultrafiltration, dual-pass membrane arrays, and calcite re-hardening filters to meet WHO drinking water standards for municipalities and resorts.
Oil & Gas Produced Water Re-Injection
Combining crossflow microfiltration, oil coalescing separators, and open-channel Disc Tube Reverse Osmosis (DTRO) to achieve oil content ≤5 mg/L and suspended solids ≤1 mg/L for sustainable deep-well re-injection.
High-Salinity Industrial ZLD & Crystallization
MVR (Mechanical Vapor Recompression) paired with high-recovery RO/EDR, driving wastewater beyond saturation limits into crystalline salts for chemical and electroplating zero-discharge compliance.
Engineering Verification, CE Certification & QA Protocols
Procuring industrial desalination machinery from an overseas OEM factory requires absolute structural, electrical, and hydraulic guarantees. Shanghai Tongjie’s engineering operations conform strictly to third-party audits and CE machinery directives.
- CE Mark Conformity: Fully certified against the Pressure Equipment Directive (PED 2014/68/EU) and Electromagnetic Compatibility (EMC 2014/30/EU).
- Management Accreditations: Fully operational under ISO 9001 (Quality), ISO 14001 (Environmental Stewardship), and ISO 45001 (Occupational Safety).
- Class II Contracting Credentials: Certified execution authority in Environmental Protection Engineering and M&E Mechanical Installation.
- Pre-Shipment FAT Mandate: 100% full-capacity hydrostatic, electrical, and PLC simulation testing conducted in Shanghai before packing.
Lifecycle Localization & Site Readiness
We eliminate commissioning delays on overseas projects through standard skid containerization. On-site installation requires only main intake, reject outfall, product line, and 3-phase power termination.
Technology Roadmap: 2026–2030 Next-Gen Desalination
Tongjie's R&D engineering department actively develops advanced solutions to tackle emerging membrane challenges, reduce brine disposal impacts, and optimize specific energy consumption.
Solar-Coupled Microgrid Desal
Direct integration of photovoltaic inverters and variable frequency drives (VFD) that ramp high-pressure pumps up and down based on real-time solar irradiance without battery storage.
OARO High-Salinity Concentration
Osmotically Assisted Reverse Osmosis (OARO) membranes deployed to bypass standard hydraulic pressure ceilings, achieving brine concentrations above 140,000 ppm TDS without thermal evaporators.
Digital Twin AI Biofouling Mitigation
Edge-computed AI algorithm suites analyzing streaming differential pressure (ΔP), temperature, and flux curves to trigger predictive automated CIP sequences before irreversible scaling occurs.
Procurement & Technical Queries
Key design parameters, metallurgy specifications, and deployment questions addressed by our chief process engineers.
What engineering variables are required to properly size a CE-certified seawater RO plant?
How do Tongjie containerized SWRO units withstand harsh marine corrosivity?
What factory testing and CE validation documentation is provided with delivery?
What typical specific energy consumption (SEC) is achieved by your systems?
Engineered Water Separation & Zero Liquid Discharge Systems
Explore our full portfolio of deoxygenation skids, ultra-pure electronics systems, and containerized off-grid desalination units.
