What information do you need to size a seawater RO or industrial water treatment system?

Send a recent raw water analysis (TDS, conductivity, hardness, silica, iron/manganese, SDI or turbidity, oil and suspended solids where relevant), feed water temperature range, required product water quality and daily capacity, target recovery, available power supply (voltage/frequency), site conditions and whether you prefer a skid or containerized layout. With this data our engineers prepare a process design, mass balance and equipment list.

How fast can a containerized seawater desalination plant start producing water?

Tongjie containerized seawater RO units are fully prefabricated, assembled and tested in our Shanghai factory before shipment. On arrival the unit only needs basic power, intake and product water connections, so commissioning is short and predictable, which suits emergency supply, remote islands, construction camps and decentralized permanent supply.

Can your oil and gas produced water system meet reinjection requirements?

Yes. The system combines oil removal, softening, disc tube reverse osmosis (DTRO) and concentration. Treated reinjection water reaches oil content of 5 mg/L or less and suspended solids of 1 mg/L or less, enabling zero-discharge reuse of fracturing flowback. The skid-mounted container design can be commissioned within about 15 days and supports unmanned operation with remote monitoring for sites such as the Middle East and Kazakhstan.

Do your pharmaceutical purified water systems support validation?

Our pharmaceutical water systems use pretreatment, precision filtration, RO and EDI, and are built to pharmaceutical engineering practice with online monitoring of conductivity, temperature and flow. Data is recorded and traceable, and documentation is prepared to support your validation and qualification activities.

Do you offer ODM/OEM water treatment equipment?

Yes. We supply ODM/OEM membrane systems for distributors, EPC contractors and equipment brands, including customized capacity, materials, control systems, container layouts, labeling and documentation.

Which certifications and qualifications does Tongjie hold?

Tongjie holds CE certification and ISO 9001, ISO 14001 and ISO 45001 management system certifications. The company is a National High-Tech Enterprise and Shanghai Specialized & Sophisticated Enterprise, holds Class II contracting qualifications in environmental protection engineering and in mechanical and electrical installation, and owns more than 38 invention and utility patents plus software copyrights.

Wholesale China Suppliers of Factory-Integrated Containerized Seawater Desalination Plants for Off-Grid Solar Solutions Factories, Manufacturer

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Wholesale China Suppliers of Factory-Integrated Containerized Seawater Desalination Plants for Off-Grid Solar Solutions Factories, Manufacturer

Off-Grid Solar Seawater Desalination Equipment

This off-grid solar seawater desalination equipment represents an innovative mobile water production solution designed for efficiency and ease of use. Manufactured by leading China suppliers, this integrated system features a complete high-efficiency reverse osmosis mechanism housed within a standard container. The factory-prefabricated equipment undergoes thorough assembly and testing, ensuring rapid deployment upon arrival at your site. With just basic electrical and water connections required, it achieves instant readiness for use and immediate water production. Ideal for emergency water supply, temporary operations, and applications in remote areas, this system merges the industrial-scale processing capabilities of large facilities with the flexibility of modular designs. Whether for short-term or permanent decentralized water supply needs, this seawater desalination equipment is your optimal choice for reliable and efficient water solutions.

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Product Description

Our Solution

Shanghai Tongjie Environmental Protection's containerized seawater desalination equipment is specifically designed for the Middle East, Central Asia, islands, oil fields, and remote camps. It employs seawater reverse osmosis (SWRO) technology combined with energy recovery and high-temperature resistant, anti-contamination membranes, achieving a TDS tolerance of up to 42,000 ppm and producing water with TDS ≤500 ppm (compliant with direct drinking standards). The system integrates 20-foot/40-foot standard containers, featuring factory prefabrication and pre-commissioning, enabling immediate on-site operation within 72 hours without complex civil engineering work. It operates effectively in temperatures ranging from -20°C to 55°C, offering corrosion-resistant, explosion-proof capabilities and remote monitoring functionality.

Core Advantages

containerized seawater desalination system

High Salt Tolerance

High salt tolerance with a desalination rate of ≥99.2%; anti-contamination seawater membrane ensuring stable operation at TDS ≤42,000 ppm.

Container Gantry Installation

Standard container integration enables 72-hour commissioning, reducing civil construction by 80% and project duration by 60%, with immediate water supply upon site delivery.

Adapted to Extreme Environments

Suitable for desert and marine applications with heat resistance up to 55°C, cold resistance down to -20°C, salt spray protection, and explosion-proof design.

Intelligent Operation and Maintenance

Unmanned PLC + touchscreen + remote monitoring, available 24/7 with fault alerts and dual control options (local/remote).

Comprehensive Compliance Certifications

GCC, SASO 2664, ESMA, and ISO certifications meet market access requirements for the Middle East and Central Asia, ensuring seamless international expansion.

An ideal solution for meeting short-term or long-term decentralized water supply demands

Core Technical Parameters

Parameter	Specification
Processing capacity	100–1000 tons/day (customizable)
Inlet TDS	≤42,000 ppm (seawater)
TDS of produced water	≤500 ppm (for direct drinking)
Desalination rate	≥99.2%
Recycling rate	35–45%
Operating environment temperature	-20°C to 55°C
Container	20-foot / 40-foot standard container

Application Scenarios

◈ Oil and Gas Fields

Water Supply for Oilfield Camps in the Middle East/Central Asia, Freshwater for Platforms

◈ Islands / Remote Areas

Direct drinking water for island residents, campsites, and construction sites

◈ Ships / Offshore Platforms

Freshwater Replenishment for Offshore Operations

◈ Emergency Water Supply

For disaster relief, temporary camps, and battlefield water supply

FAQ

Q: Can it withstand the high temperatures of 55°C in the Middle East?

A: Equipped with a specialized heat-resistant film and cooling system, it maintains stable long-term operation at 55°C and features dust and sand resistance.

Q: Can containers be transported by sea or land?

A: Standard ISO containers are suitable for global sea and land transport, and can be relocated and reused upon project completion.

Q: How are operations and spare parts ensured?

A: Spare parts warehouses in the Middle East/Central Asia, remote monitoring, and localized engineers with 24/7 on-site response capabilities.

Q: What is the maximum salt tolerance limit of this equipment?

A: The system achieves a high TDS tolerance of up to 42,000 ppm, making it ideal for highly saline seawater desalination.

Q: Does the produced water meet standard direct drinking requirements?

A: Yes, it produces clean water with a TDS level of ≤500 ppm, which is fully compliant with direct drinking water standards.

Q: How fast can the system be deployed and operational on-site?

A: Due to factory prefabrication and pre-commissioning, the system enables immediate on-site operation within 72 hours without complex civil engineering.

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Wholesale China Suppliers of Factory-Integrated Containerized Seawater Desalination Plants for Off-Grid Solar Solutions Factories, Manufacturer

Product Description

Our Solution

Core Advantages

High Salt Tolerance

Container Gantry Installation

Adapted to Extreme Environments

Intelligent Operation and Maintenance

Comprehensive Compliance Certifications

An ideal solution for meeting short-term or long-term decentralized water supply demands

Core Technical Parameters

Application Scenarios

◈ Oil and Gas Fields

◈ Islands / Remote Areas

◈ Ships / Offshore Platforms

◈ Emergency Water Supply

FAQ

Other Products

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Seawater desalting equipment

High-Salinity Wastewater Volume R...

OEM Precision Manufacturing

ODM Full Value Chain Innovation

Water Reuse Equipment (Pretreatme...

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Send Inquiry

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