High-Recovery Pre-Treatment & Membrane Concentration Systems
Engineered to handle elevated total dissolved solids (TDS) and aggressive scalants. Our factory-prefabricated modules cut energy demands up to 45% ahead of downstream thermal crystallizers.
China High-Ratio Water Reuse Process Equipment Suppliers in China | Advanced Wastewater Treatment Factory Manufacturers, Manufacturer
View Product Spec
OEM High-Ratio Water Reuse Equipment from China Suppliers | Factory Solutions for High-Salinity Industrial Wastewater Factories, Manufacturer
View Product Spec
China Eco-Friendly Water Treatment Solutions from China's Leading Suppliers and Factory with ODM Services Supplier, Manufacturers
View Product Spec
ODM OEM Precision Manufacturing Factories, Manufacturer
View Product Spec
OEM China Pharmaceutical Purified Water & WFI System - Reliable Suppliers and Factory for Quality Water Solutions Factories, Suppliers
View Product Spec
ODM China Suppliers Factory Modular Containerized Seawater Desalination Equipment - Rapid Deployment and Off-Grid Solar System Factories, Factory
View Product Spec
OEM High-Efficiency Brine Concentration Systems from China Suppliers | Membrane-Based Factory Solutions Factory, Manufacturers
View Product Spec98.5%
Max Water Recovery Rate
260 g/L
Brine Concentration Level
38+
Registered Inventions & Patents
CE / ISO
EU Compliance Certified
Global ZLD Industry Trends & Corporate Procurement Vectors
Stringent environmental standards (EU Industrial Emissions Directive, US EPA Effluent Guidelines) have evolved Zero Liquid Discharge from an operational liability into a core ESG imperative for blue-chip industrial operators.
Stringent Regional Regulations
Discharge permits across the EU, North America, and East Asia now strictly cap TDS, heavy metals, and persistent organics. Procurement directors require robust ZLD architectures that guarantee zero outfall compliance under heavy penalty regimes.
Valuable Mineral Recovery
Modern ZLD systems shift from mere wastewater minimization to circular economy refineries. Advanced crystallization allows chemical producers to isolate high-purity battery-grade lithium salts, sodium sulfate, and gypsum for industrial resale.
Lifecycle OPEX Optimization
Thermal evaporation accounts for upwards of 75% of operational energy in legacy ZLD setups. Modern buyers prioritize membrane-assisted pre-concentration (DTRO, PRO, ED) to raise brine TDS toward 18-24% before firing thermal stages.
China Factory 4.0: Supply Chain Resilience & Precision Execution
How Shanghai Tongjie combines Class II mechanical-electrical installation credentials with automated pre-assembly lines to de-risk overseas turnkey water management projects.
Full Factory Skid Integration
Systems are fully plumbed, cabled, and programmed inside ISO-monitored workshops. P&ID layout verification, dynamic hydrostatic tests, and PLC control sequences are resolved before crating, dropping field commissioning timelines to days.
CE Mark Compliance & Traceability
Every vessel, sensor, and welded pipe run aligns with European Directives: Machinery Directive (2006/42/EC), Low Voltage Directive (2014/35/EU), and Pressure Equipment Directive (PED 2014/68/EU), complete with mill test certificates.
Robust Material Supply Chains
Direct tier-1 strategic sourcing agreements ensure uncompromised alloy metallurgy: Super Duplex Stainless Steel (2507/1.4410), Hastelloy C-276, Titanium Gr.2, and premium fluoropolymers (PVDF/PTFE) for harsh brine conditions.
Tailored Global Engineering & Operational Scenarios
Field-proven deployments demonstrating high resistance to severe scaling, foulant spikes, and ambient variations across demanding territories.
Upstream Energy & Fracking Flowback
Deployment: Middle East & Central Asia (Kazakhstan).
Challenge: Emulsified hydrocarbons (>120 mg/L) with fluctuating salinities exceeding 60,000 ppm TDS.
Outcome: Containerized primary de-oiling married with open-channel DTRO modules achieves reinjection standard: oil ≤5 mg/L, SS ≤1 mg/L, automated unmanned remote SCADA control.
Coal Chemical & High-Salt Parks
Deployment: Northern China Inland Industrial Zones.
Challenge: Zero liquid discharge mandate without municipal ocean discharge options; high silica and calcium sulfate fouling.
Outcome: High-efficiency softening followed by multi-stage membrane brine concentrators feeding an automated MVR crystallization train, yielding 99%+ water reuse and marketable solids.
Pharma & High-Purity Synthesis
Deployment: Southeast Asia & European Active Pharmaceutical Ingredient (API) plants.
Challenge: Recalcitrant chemical oxygen demand (COD), variable antibiotic intermediates, and regulatory cGMP validation.
Outcome: Advanced catalytic oxidation tied to double-pass RO/EDI and clean-in-place (CIP) subsystems delivering complete audit validation and stable water recycling.
Mobile, Modular & Heavy-Duty Membrane Plants
Containerized, skid-mounted, and turnkey plants built for rapid plug-and-play field deployment, coastal utilities, and extreme industrial outfalls.
OEM China Suppliers of Containerized Seawater Desalination Plants - Factory-Direct Mobile Water Solutions Factories, Supplier
View Product Spec
Wholesale Compact Seawater Desalination System - Efficient China Suppliers & Factory Solutions for Freshwater Needs Factories, Supplier
View Product Spec
CE Certification Containerized Seawater Desalination Plants Supplier, Manufacturer
View Product Spec
China China Modular Containerized Seawater Desalination Equipment | Rapid Deployment by Leading Suppliers and Factory Factories, Suppliers
View Product Spec
Wholesale China Pharmaceutical Purified Water & WFI System Suppliers - High-Quality Factory Solutions for APIs Factories, Manufacturers
View Product Spec
OEM China ODM Suppliers: Eco-Friendly Water Treatment Solutions from a Trusted Factory for Global Markets Factory, Suppliers
View Product Spec
ODM China Suppliers Factory: Advanced Fracturing Flowback Water Reuse Treatment Equipment for Oil & Gas Operations Suppliers, Manufacturers
View Product Spec
Wholesale China Deoxygenation Membrane Equipment Suppliers - Physical Degassing Technology from Trusted Factory Factory, Supplier
View Product SpecTechnical & Engineering Procurement FAQ
Detailed process engineering answers addressing feed analysis, membrane longevity, thermodynamic limits, and European compliance.
What essential feed water parameters are required to size a custom ZLD process train?
To generate precise mass balances and membrane projections, our engineering team requires a comprehensive water profile including: Total Dissolved Solids (TDS), specific conductivity, pH, total hardness (Ca2+, Mg2+), silica (SiO2), sulfate (SO4 2-), chloride (Cl-), barium, strontium, COD/BOD5, and Silt Density Index (SDI15). In addition, daily flow capacities, site power conditions (voltage/frequency), and targeted product water destinations (boiler feed, cooling tower make-up, or pure condensate) must be stated.
How does Shanghai Tongjie mitigate severe membrane scaling in high-salinity ZLD circuits?
Scaling prevention employs a multi-barrier protocol: primary chemical softening (lime-soda or caustic/soda ash) reduces calcium and magnesium hardness to <20 mg/L as CaCO3, combined with specialized polymeric scale inhibitors. Downstream, we implement high-flow velocity Disc Tube Reverse Osmosis (DTRO) or Vibratory Shear Enhanced Processing (VSEP), which maintain turbulent boundary layer shear over the membrane surface, preventing salt crystallization on active polyamide barriers.
What are the typical operating cost (OPEX) ratios between membrane pre-concentration and thermal MVR?
Membrane pre-concentration (RO/DTRO) typically consumes between 2.0 to 9.5 kWh of electrical energy per cubic meter of permeate recovered. In contrast, Mechanical Vapor Recompression (MVR) thermal evaporators require 22 to 45 kWh/m³, and multi-effect evaporators (MEE) consume extensive low-pressure steam. By maximizing membrane recovery up to 120,000–180,000 mg/L TDS, the volume delivered to thermal crystallizers is slashed by 70–85%, substantially dropping operational energy costs.
Which CE directives and international certifications accompany export shipments?
All overseas units carry full CE certification complying with EU Machinery Directive (2006/42/EC), Low Voltage Directive (2014/35/EU), and Electromagnetic Compatibility (EMC 2014/30/EU). High-pressure membrane housings, piping manifolds, and heat exchangers comply with the Pressure Equipment Directive (PED 2014/68/EU). Manufacturing operates under audited ISO 9001 (Quality), ISO 14001 (Environmental), and ISO 45001 (Occupational Health & Safety) certifications.
Can containerized ZLD systems be deployed in extreme ambient environments?
Yes. Our containerized systems are engineered inside heavy-duty ISO shipping containers equipped with industrial thermal insulation (polyurethane/rockwool panels), explosion-proof HVAC systems (ATEX/IECEx compliant), motorized louver dampers, and sand filtration intake hoods. They operate reliably in ambient extremes ranging from -30°C in Kazakhstan to +55°C in Gulf coastal oilfield applications.