Containerized/Mobile Water Desalination Equipment
Product Description
This 500m³/day containerized seawater desalination RO equipment is a large-scale, highly reliable freshwater supply system engineered for sustained operation in offshore platforms, island residential zones, coastal industrial parks and water-scarce coastal regions. The system adopts an energy-optimized SWRO process that efficiently treats raw seawater with a high desalination rate above 97%, delivering a large daily volume of qualified fresh water for both domestic use and industrial production. Encapsulated in a heavy-duty container with weatherproofing, salt-fog resistance and optional internal temperature control, the unit can operate reliably under high-temperature, high-humidity and harsh marine environments. The full pretreatment train effectively removes suspended solids, algae, organic contaminants and scale-forming ions, protecting the high-performance seawater membranes and extending service life. The system is equipped with a powerful high-pressure pump, corrosion-resistant piping, automatic cleaning system and intelligent PLC control, supporting continuous operation, online monitoring and automatic fault warning. With a fully integrated, pre-tested design, it can be quickly put into use with simple installation and commissioning. Featuring stable performance, low operational energy consumption and long service life, it provides a large-scale, economical and sustainable solution for seawater utilization in offshore and island scenarios.
Applications
Islands and Coastal Areas: Domestic water for island residents, drinking water and domestic water supply for coastal resorts, hotels and restaurants, solving the water supply problem in coastal water-scarce areas.
Ships and Offshore Platforms: Drinking water supply for ocean-going ships, yachts, houseboats and other marine means of transportation, production and domestic water for offshore oil platforms.
Emergency and Humanitarian Scenarios: Emergency water supply in coastal areas after natural disasters, temporary water supply in remote coastal areas, providing safe drinking water for disaster victims or remote residents.
Industrial and Agricultural Scenarios: Production water for coastal industrial parks, coastal farmland irrigation water (adapted after subsequent treatment), purification of underground brackish water and seawater in desert areas.
Containerized/Mobile Water Desalination Equipment Features
Special Design for Seawater Desalination, Stable Treatment Effect: Adopting seawater special RO membrane and corrosion-resistant components, it specifically solves the problems of high salt and high corrosion of seawater, with desalination rate ≥97%, produced water TDS <500mg/L, meeting drinking and production water standards, and stable and reliable treatment effect.
Integrated Integration, Efficient Deployment: All equipment, pipelines and wiring are pre-installed in the container, which can be quickly put into use only with simple foundation preparation, no separate factory building is needed, which greatly shortens the project cycle, especially suitable for scenarios with limited construction conditions such as islands and remote coastal areas.
Customizable Adaptation, Flexible and Diverse: According to the seawater quality (such as TDS difference in different sea areas) and water production demand, the number of membrane modules, pretreatment scheme, container specifications (20ft/40ft) and auxiliary systems (such as optional ERD energy recovery device, clean energy adaptation) can be customized to adapt to different scenario needs.
Strong Mobility, Wide Application: The container design is convenient for transportation, can be flexibly moved and deployed, adapting to mobile or fixed scenarios such as ships, yachts, islands and coastal resorts, and can also be used as emergency seawater desalination equipment to quickly respond to water supply needs.
Intelligent Operation and Maintenance, Controllable Cost: PLC automatic control system realizes automatic operation, automatic membrane cleaning, fault alarm and other functions, reducing manual intervention; Optional energy recovery device and clean energy adaptation reduce energy consumption, and long-term operation cost is controllable; A complete set of technical documents and on-site installation, commissioning and training services are provided.
Strong Protection, Long Service Life: The container shell can resist harsh marine weather (high temperature, high humidity, salt fog), and the internal equipment adopts corrosion-resistant materials, which effectively extends the service life of the equipment. The warranty period can reach 1 year, and complete after-sales technical support is provided.
Standard Product Configuration List
| No. | Equipment/Component Name | Quantity | Remarks |
| 1 | Seawater Intake Device | 1 Set | Suitable for offshore seawater intake, corrosion-resistant design |
| 2 | Quartz Sand Filter | 1 Set | Remove large particle sediment and suspended solids in seawater, salt corrosion resistant |
| 3 | Activated Carbon Filter | 1 Set | Adsorb organic matter, residual chlorine and peculiar smell to protect RO membrane |
| 4 | Dosing System | 1 Set | Including scale inhibitor and corrosion inhibitor dosing device to prevent membrane scaling and corrosion |
| 5 | PH Adjustment System | 1 Set | Adjust the pH value of seawater to adapt to the operation requirements of RO membrane |
| 6 | Security Filter | 1 Set | 5μm precision filtration, remove fine impurities to protect RO membrane modules |
| 7 | High Corrosion-Resistant High-Pressure Pump | 1 Set | Provide 3.6-6.5MPa high pressure, suitable for seawater RO membrane operation |
| 8 | Seawater RO Desalination Device | 1 Set | Including FRP membrane shell and special seawater RO membrane, desalination rate ≥97% |
| 9 | ERD Energy Recovery Device (Optional) | 1 Set | Recover concentrated brine energy and reduce system energy consumption |
| 10 | Disinfection Device | 1 Set | UV or ozone disinfection to kill microorganisms and ensure drinking water safety |
| 11 | Cleaning System | 1 Set | Regularly clean RO membrane to restore membrane performance and extend service life |
| 12 | Electronic Control System | 1 Set | PLC automatic control, including water quality monitoring, fault alarm and automatic cleaning functions |
| 13 | Standard Container | 1 Unit | 20ft/40ft optional, including air conditioning, salt fog protection and maintenance facilities |
| 14 | Corrosion-Resistant Pipelines and Valves | 1 Set | 2507 material, suitable for seawater strong corrosion environment |
Technical Parameters
| Parameter Name | Special Specifications |
| Water Production Capacity | 100LPH - 7500m³/day (Customizable) |
| Desalination Rate | ≥97% (up to 98.5%) |
| Raw Water TDS | ≤35000ppm (Special for Seawater) |
| Produced Water TDS | <500mg/L, meeting WHO Standards |
| Working Pressure | 3.6-6.5MPa (Special High-Pressure Configuration for Seawater) |
| Core Components | Seawater-Specific RO Membrane, High-Pressure Corrosion-Resistant Pump, FRP Membrane Housing, 2507 Material Pipes, PLC Automatic Control System |
| Container Specifications | 20ft (5.8×2.3×2.3m), 40ft (11.85×2.3×2.3m) |
| Warranty Period | 1 Year |
| Optional Configuration | ERD Energy Recovery Device, Clean Energy Adaptation, Skylight (Temperature Control) |
| Raw Water Type | Offshore Seawater, Island Seawater |
Products Details
Water Production Customization: It can be flexibly customized from 100LPH to 7500m³/day, matched with the corresponding number of RO membrane modules and pump sets to adapt to different water consumption scales.
Pretreatment Scheme Customization: According to the raw water quality (such as suspended solids content, hardness, organic matter content, etc.), customize the combination of pretreatment components, such as adding coagulation sedimentation device, adjusting filter specifications, etc., to ensure the pretreatment effect.
Core Component Customization: The brand and specification of RO membrane, high-pressure pump power and PLC control system functions can be customized. Remote monitoring, data collection and other functions can be added to adapt to the needs of intelligent operation and maintenance.
Container Customization: Standard 20ft and 40ft containers can be selected, or container size can be customized according to on-site space; Skylights, air conditioning, protective facilities, etc. can be added to adapt to complex environments such as high temperature and severe cold.
Function Customization: Post-treatment system (such as UV disinfection, ozone disinfection, mineralization device) can be customized to adapt to different water quality requirements such as drinking water and electronic grade ultrapure water; It can be adapted to clean energy (such as solar energy, wind energy) to reduce energy consumption.
Specification Customization: Parameters such as voltage and working pressure can be adjusted to adapt to power grids and raw water working conditions in different regions; The weight and size of equipment can be customized to meet transportation and installation needs.
Products Principle
Raw Water Intake and Buffering: Offshore seawater (TDS ≤35000ppm) is extracted through a special water intake device and enters a buffer pool for water volume adjustment to reduce the impact of water intake fluctuation on the system, and at the same time, large particle sediment and impurities are initially precipitated.
Pretreatment Link: As a key pre-step of seawater desalination, the core purpose is to remove suspended solids, algae, organic matter, residual chlorine and part of hardness in seawater, prevent RO membrane pollution, scaling and corrosion, and ensure the long-term stable operation of membrane modules. Specifically including: ① Coagulation and Sedimentation: Add coagulant to make small suspended solids and algae in seawater aggregate into large particles and precipitate for removal; ② Quartz Sand Filtration: Through multi-layer quartz sand medium, filter and remove large particle impurities and suspended solids after sedimentation to reduce water turbidity; ③ Activated Carbon Filtration: Adsorb organic matter, peculiar smell and residual chlorine in seawater to avoid residual chlorine corroding RO membrane; ④ Dosing and Anti-Scaling Treatment: Add special scale inhibitor to inhibit seawater scaling on RO membrane surface, and add corrosion inhibitor to reduce seawater corrosiveness; ⑤ Security Filtration: Adopt 5μm precision filter to filter fine impurities and provide the last protection for RO membrane.
High-Pressure Boosting Link: The pretreated seawater is boosted by a high corrosion-resistant high-pressure pump to 3.6-6.5MPa (special working pressure for seawater RO membrane), which meets the pressure requirement for reverse osmosis desalination and provides power for seawater to pass through the membrane module.
Core RO Desalination Link: This is the core process of seawater desalination. It adopts special high-pressure and corrosion-resistant RO membrane modules for seawater. Using the selective permeability of semi-permeable membrane, under high pressure, fresh water in seawater passes through the membrane layer, while dissolved salts (such as sodium chloride), heavy metal ions, organic matter and other impurities are intercepted by the membrane to form concentrated brine for discharge. The desalination rate of this link is ≥97%, up to 98.5%, which can reduce the TDS of seawater from about 36000mg/L to below 500mg/L. At the same time, ERD energy recovery device can be optionally configured to recover the residual energy of concentrated brine and reduce system energy consumption.
Post-Treatment Link: According to the water demand, the RO produced water is further treated to ensure that the water quality meets the use standard: ① pH Value Adjustment: Adjust the pH value of produced water to neutral to improve the taste of drinking water; ② Disinfection Treatment: Adopt UV disinfection or ozone disinfection to kill microorganisms and bacteria in produced water to ensure drinking water safety; ③ Mineralization Treatment (Optional): Add an appropriate amount of minerals to make the produced water more in line with human drinking needs.
Produced Water Storage and Transportation: The treated qualified fresh water enters the water storage tank for storage and is transported to the water point through the transfer pump. At the same time, the system monitors the produced water quality in real time. If the water quality is not up to standard, it will automatically alarm and switch to the circulation treatment mode to ensure stable water outlet.
Cleaning and Discharge: The RO membrane modules are regularly chemically cleaned to restore membrane performance; The concentrated brine produced by the system is discharged in line with environmental protection standards after treatment to avoid environmental pollution.
Products Details
The overall architecture is divided into six modules: water intake and buffering unit, special pretreatment unit, high-pressure RO desalination unit, post-treatment unit, electrical control unit and auxiliary protection unit. Each module is pre-installed and integrated, the pipelines are made of corrosion-resistant materials, and the container is equipped with air conditioning, salt fog protection, drainage and maintenance facilities, which are suitable for harsh marine and coastal environments and realize "plug-and-play" and long-term stable operation.
Water Intake and Buffering Unit: Special water intake device and buffer pool (optional) ensure stable seawater supply and initially precipitate large particle impurities.
Special Pretreatment System: Quartz sand filter, activated carbon filter, coagulation sedimentation device (optional), dosing system (scale inhibitor, corrosion inhibitor), PH adjustment system, security filter (5μm), which specifically removes suspended solids, algae, organic matter and residual chlorine in seawater to prevent RO membrane pollution and scaling.
High-Pressure RO Desalination Unit: High corrosion-resistant high-pressure pump, FRP pressure vessel, special seawater RO membrane module (mainly 8040 specification, the number can be customized), ERD energy recovery device (optional), cleaning system, which mainly realizes seawater desalination and is the core link of seawater desalination.
Post-Treatment Unit: pH adjustment device, UV/ozone disinfection device, mineralization device (optional), ensuring that the produced water quality meets the WHO drinking water standard and adapts to different water needs.
Electrical Control Unit: PLC automatic control system, which has functions of automatic operation, automatic membrane cleaning, water quality monitoring, fault alarm, etc., supports manual standby operation, and can reserve remote monitoring interface to realize unattended operation.
Auxiliary Protection Components: 2507 material pipelines and valves, corrosion-resistant instruments, container air conditioning, salt fog protection facilities, drainage system, which are suitable for seawater strong corrosion and high salt fog environment and extend the service life of equipment.
Products Details
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