Core Separation & Produced Water Treatment Units
Engineered for demanding coastal energy corridors, industrial terminal facilities, and offshore exploration platforms requiring high salt rejection, oil tolerance, and strict compliance.
Drilling, Completion & Workover Waste Fluid System (Boston Spec)
High-efficiency multi-stage clarifying and membrane polishing unit for complex drilling, completion, and offshore workover fluids with robust emulsified hydrocarbon handling.
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Oilfield Fracturing & Flowback Fluid Skid (Modular DTRO)
Engineered for high-TDS flowback management, featuring anti-fouling Disc Tube Reverse Osmosis (DTRO) membranes capable of operating at up to 120 bar hydrostatic pressure.
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CE & UL Certified Flowback Treatment Plant (Boston Harbor Edition)
Comprehensive skid architecture with continuous hydrocarbon separation, softeners, and dual-pass membrane arrays meeting strict US EPA NPDES reinjection and discharge thresholds.
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Containerized Seawater Desalination Plant (40ft Plug-and-Play)
Turnkey mobile seawater desalination plant fitted with duplex stainless steel (2205/2507) high-pressure pumps and isobaric energy recovery devices delivering potable water at <3.0 kWh/m³.
Review Desalination PlantMacro Industrial Water Landscape: Greater Boston & The New England Coast
The Greater Boston metropolitan area and Massachusetts coastal corridor represent one of North America's most technologically dense economic engines. While historically celebrated for its prestigious biomedical clusters along the Charles River, Route 128, and Kendall Square, the region supports a sophisticated industrial base spanning deepwater maritime transport, offshore wind staging bases (such as New Bedford Marine Commerce Terminal), coastal liquefied natural gas (LNG) import and storage terminals in Boston Harbor and Everett, and heavy electrical generation utilities.
In this fragile estuarine ecosystem, freshwater conservation and industrial wastewater discharge face intense scrutiny. Under the regulatory aegis of the Massachusetts Department of Environmental Protection (MassDEP) and the US EPA Region 1 (Boston Office), industrial facilities cannot afford process water failures or effluent permit violations. The convergence of municipal water tariff inflation, strict Total Maximum Daily Loads (TMDL) in Massachusetts coastal waters, and the rapid development of marine energy infrastructure has driven unprecedented demand for modular, robust seawater desalination systems and specialized produced water treatment equipment.
Critical Boston Engineering Insight
Feedwater along Massachusetts Bay exhibits distinct seasonal variability—from near-freezing winter temperatures (1.5°C to 4°C) with elevated viscosity, to summer organic surges requiring resilient DAF (Dissolved Air Flotation) and ultrafiltration pretreatment to mitigate biofouling on reverse osmosis elements.
Why Boston Industrial Procurement Prefers Skid-Mounted Packages:
- Footprint Efficiency: Minimizes expensive real estate usage across Boston Harbor docks, coastal energy assets, and urban manufacturing sites.
- Accelerated Permitting: Prefabricated, closed-loop containerized skids dramatically simplify MassDEP local site reviews and OSHA industrial inspections.
- Zero Liquid Discharge (ZLD) Ready: Direct integration with high-recovery RO and thermal crystallizers to ensure zero environmental discharge into sensitive marine sanctuaries.
Oil & Gas Produced Water & Complex High-Salinity Effluent Solutions
Managing recalcitrant organics, heavy metals, free and dissolved hydrocarbons, and hyper-salinity across marine energy terminals, bunkering sites, and regional energy logistics corridors.
Everett & Boston Marine Bunkering Effluent
Vessel de-ballasting, bilge cleaning, and LNG vaporiser condensate contain emulsified oils, BTEX compounds, and residual surfactants. Our integrated hydrocyclone and ceramic ultrafiltration pretreatment train drops oil content below 5 ppm before secondary polishing.
Appalachian Basin Intermodal Transfer Support
As regional energy corridors connect through New England logistics ports, heavy fracturing flowback and produced brines with TDS exceeding 180,000 mg/L demand Disc Tube Reverse Osmosis (DTRO) capable of high concentration before crystallization.
15-Day Rapid Field Commissioning
Skid-mounted containerized units arrive pre-wired, pre-piped, and hydraulic-tested. Boston industrial operators can transition from delivery to active treatment in under 15 business days, drastically lowering site overhead and EPC contractor coordination friction.
The Engineering Chemistry of Produced Water in Marine Terminals
Produced water streams from marine energy bunkering and offshore operations present severe fouling challenges: high chemical oxygen demand (COD), soluble silica exceeding 150 mg/L, barium/strontium sulfate scaling vectors, and polycyclic aromatic hydrocarbons (PAHs). Conventional spiral-wound RO elements fail within 72 hours under these conditions due to irreversible colloidal cake formation and bio-slime development.
Our specialized produced water trains utilize an advanced Coagulation-DAF-Ozone + Ceramic Microfiltration + DTRO sequence. The open-channel hydraulics of our DTRO modules allow turbid feed (SDI > 15, Turbidity > 30 NTU) to bypass the laminar boundary layer, preventing membrane fouling and maintaining continuous operation up to 1,740 psi (120 bar), yielding recovered clean permeate compliant with Massachusetts surface water standards.
Technology Roadmap: The Next Frontier of Membrane Desalination
Advancing from legacy thermal distillation to hyper-efficient, digital-twin monitored SWRO, closed-circuit reverse osmosis (CCRO), and physical vacuum degassing membranes.
Isobaric Energy Recovery & Fluid Dynamics
Legacy seawater plants consumed 7 to 9 kWh/m³ of fresh water generated. Tongjie's next-generation containerized desalination packages integrate positive displacement ceramic isobaric pressure exchangers (PX), recovering over 96% of the hydraulic pressure energy from the reject brine stream.
By recycling this pressurized concentrate back into the feed manifold ahead of the high-pressure booster pump, our Boston-ready units achieve net specific energy consumption (SEC) figures as low as 2.85 – 3.15 kWh/m³, drastically slashing long-term lifecycle OPEX for municipal water authorities and coastal industrial consumers.
Membrane Contactors & Dissolved Oxygen Stripping
Corrosion mitigation in coastal boilers and district thermal circuits around Boston requires stringent deoxygenation. Chemical scavenging (using sodium sulfite or hydrazine) increases dissolved salts and creates hazardous chemical storage compliance issues under OSHA.
Our physical deoxygenation membrane contactors employ microporous polypropylene hollow fibers operated under a sweep-gas / vacuum differential. Dissolved oxygen levels in feed streams are reduced to < 5 ppb (parts per billion) without a single drop of chemical additives, safeguarding expensive titanium and Hastelloy heat exchanger equipment.
China Factory 4.0: Supply Chain Agility, Precision & Cost Efficiency
How Shanghai Tongjie combines cutting-edge automated fabrication, vertical supply chain integration, and rigorous digital factory acceptance testing (FAT) to deliver unmatched value to Boston buyers.
Vertical In-House Manufacturing
From high-pressure duplex stainless pipe orbital welding to structural skid painting and PLC panel wiring, our Shanghai facility manufactures under one roof. This minimizes intermediary markups and accelerates production schedules by 30-45% compared to North American assembly jobbers.
100% Wet Factory Acceptance Testing (FAT)
Before shipping to the Port of Boston, every skid undergoes full hydro-testing up to 1.5x design pressure and 72-hour continuous live-water testing. Permeate quality, sensor calibration, and automatic fail-safe shutoffs are validated and documented under full ISO 9001 audit protocols.
Digital Twin & Remote IoT Telemetry
Every system is equipped with an industrial cellular/satellite edge router offering end-to-end encrypted Modbus TCP / MQTT telemetry. Our engineering headquarters can assist Boston on-site maintenance crews with real-time diagnostics, membrane flux analysis, and predictive CIP cleaning schedules.
New England Regulatory Compliance & Engineering Standards
Navigating the intricate nexus of Massachusetts environmental permits, US EPA regulations, electrical safety standards, and maritime mechanical pressure codes.
MassDEP & US EPA NPDES Permitting
The discharge of high-salinity brine back into Massachusetts Bay or inland waterways is strictly governed by Clean Water Act Section 402 National Pollutant Discharge Elimination System (NPDES) permits. The Massachusetts Clean Waters Act requires rigorous toxicity testing (WET tests) and thermal diffusion modeling.
Tongjie supports Boston EPC partners by providing complete thermodynamic and hydro-chemical mass balance documentation, brine dispersion nozzle calculations, and chemical-free anti-scalant options to ensure seamless state and federal permitting approval.
ASME & UL 508A Electrical Standards
To ensure zero red-tagging by Boston city building inspectors and Massachusetts electrical compliance officers, all Tongjie control panels can be engineered to UL 508A standards with Siemens or Allen-Bradley PLCs, variable frequency drives (VFDs), and Class I Div 2 hazardous location ratings where required.
All high-pressure piping assemblies adhere to ASME B31.3 Process Piping guidelines, and pressure vessels are fabricated in strict compliance with ASME Boiler and Pressure Vessel Code Section VIII with radiographic weld inspection certifications.
Enterprise Procurement Guidelines: Sizing, Metallurgy & Logistics
Key parameters engineering leaders and EPC procurement teams must evaluate when ordering marine seawater desalination and heavy industrial water treatment systems.
| System Specification | Containerized SWRO | DTRO Produced Water Unit | Pharmaceutical / Industrial EDI |
|---|---|---|---|
| Typical Feed TDS | 30,000 – 45,000 mg/L | 50,000 – 160,000 mg/L | 100 – 500 mg/L (Potable/RO feed) |
| Permeate Quality | < 350 mg/L (WHO Potable) | COD < 30 ppm, Oil < 2 ppm | Resistivity: 15 – 18.2 MΩ·cm |
| Piping Metallurgy | Super Duplex 2507 / SMO 254 | Hastelloy C-276 / Duplex 2205 | Sanitary SS316L (Ra < 0.4 μm) |
| Delivery & Logistics | ISO High Cube Sea Container | Intermodal Heavy Skid / Flat Rack | Enclosed Climate Skid / Crated |
Frequently Asked Questions (Technical & Commercial)
Detailed engineering insights regarding membrane lifespans, cold-water operating curves, logistics to Boston ports, and field maintenance protocols.
Comprehensive Water Treatment & Desalination Machinery
Factory-direct specialized skids, degasification units, solar off-grid plants, and ultra-high recovery water reuse systems engineered to your precise chemical water analysis.
Compact Marine SWRO System (Coastal Skid)
Space-optimized seawater reverse osmosis package tailored for coastal resorts, fishing fleets, research stations, and localized industrial docks.
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Custom Environmental Treatment Assembly (OEM/ODM)
Engineered skid configurations built with automated clean-in-place (CIP) skids, granular activated carbon (GAC), and specialized ion-exchange polishing.
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Deoxygenation Membrane Degasifier (Boiler Feed Protection)
Physical hollow-fiber membrane contactor stripping dissolved O₂ down to < 5 ppb and CO₂ down to < 1 ppm to eliminate chemical scavenging costs.
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Solar-Powered Containerized SWRO (Microgrid Ready)
Self-sustaining containerized water production facility with automated load-shedding and battery-buffered VFD drives for islands and remote stations.
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Eco-Friendly Modular Industrial RO System (Energy Optimized)
Low-chemical footprint reverse osmosis designed for food, beverage, and commercial facilities needing predictable, low-conductivity process water.
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Mobile Rapid-Deployment Seawater Plant (Emergency Reserve)
Weatherized container housing complete media filtration, anti-scalant dosing, high-pressure pump, membranes, and chlorine disinfection stage.
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Precision Industrial Purified Water Package (RO + EDI)
Continuous electrodeionization system providing 0.055 μS/cm ultra-pure water with zero regeneration chemical waste streams for tech manufacturing.
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High-Recovery Effluent Recycling Train (UF + RO + ZLD)
Advanced wastewater reclamation plant delivering up to 90%+ recovery ratios, mitigating discharge fees and local utility water intake dependency.
See Water Reuse SystemCollaborate with Tongjie Engineering on Your Next Water Treatment Installation
Whether your project involves coastal seawater desalination in Massachusetts, produced water treatment for regional energy infrastructure, or pharmaceutical-grade ultrapure water skids, our engineers are ready to review your raw water lab analysis and provide a turnkey proposal.
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