Compact 50Ton/Day SWRO Desalination Unit | Easy Installation 

50-Ton/Day Reverse Osmosis Seawater Desalination System: Product Introduction I. Product Overview This system is specifically designed for the desalination of seawater and brackish water. Utilizing a core process of **pre-treatment combined with High-Pressure Reverse Osmosis (SWRO)**, it boasts a rated water production capacity of 50 tons per day (2 tons per hour). The system efficiently removes impurities—including salts, heavy metals, bacteria, viruses, and organic matter—from seawater, converting it into potable fresh water that complies with the *Sanitary Standards for Drinking Water* (GB 5749-2022). It is widely applicable in various settings, such as island water supply, marine vessels, offshore platforms, coastal resorts, and small-scale industrial or fishery bases, effectively resolving water supply challenges in regions lacking access to fresh water sources. II. Complete Process Flow and Core Configuration 1. Standard Process Flow Seawater Intake → Seawater Lift Pump → Seawater Pre-treatment System (Coagulation/Dosing Unit) → Multi-media Filter → Activated Carbon Filter → Precision Security Filter (5μm) → High-Pressure Pump → Seawater Reverse Osmosis (SWRO) Membrane System → Mineralization/Disinfection Unit → Pure Water Storage Tank → Point of Use (Optional Brine Recovery System to enhance water resource utilization efficiency) 2. Key Components and Functions Component Name | Specifications/Material | Core Function Seawater Lift Pump | Corrosion-resistant Stainless Steel / Engineering Plastic Pump | Provides stable inlet pressure for the pre-treatment system; overcomes the head difference associated with seawater intake. Pre-treatment System (Coagulation/Dosing) | Automatic Dosing Unit (PAC / Scale Inhibitor / Biocide) | Flocculates colloidal impurities in seawater; inhibits scaling on RO membranes; prevents microbial growth. Multi-media Filter | FRP / Stainless Steel Tank with Anti-corrosion Lining | Removes sand, suspended solids, and colloids from seawater; reduces inlet turbidity. Activated Carbon Filter | FRP / Stainless Steel Tank with Coconut Shell Activated Carbon | Adsorbs residual chlorine, organic matter, and substances causing discoloration or odors in seawater; protects the RO membranes. Precision Security Filter | 316L Stainless Steel Housing with 5μm Melt-blown Filter Cartridge | Intercepts residual minute impurities remaining after pre-treatment; prevents damage (scratching) to the high-pressure pump and membrane elements. High-Pressure Pump | Corrosion-resistant High-Pressure Multi-stage Pump (e.g., Nanfang / Grundfos) | Provides a stable operating pressure of 5.5–6.5 MPa for the seawater RO system; ensures efficient desalination. Seawater RO Membrane | Industrial-grade SWRO Membrane (e.g., Dow / Hydranautics / Huitong) | The core desalination component; removes over 99.2% of salts, heavy metals, bacteria, and viruses. Energy Recovery Device (Optional) | Turbine-type / Piston-type Energy Recovery Unit | Recovers pressure from the brine stream; reduces energy consumption of the high-pressure pump; achieves energy savings of 20%–40%. Electrical Control System PLC + Touchscreen Fully Automatic Control: Features a 316L stainless steel electrical control cabinet to enable automated equipment operation, high/low-pressure protection, water shortage protection, automatic flushing, and fault alarms. Frame and Piping: Constructed with a 316L stainless steel frame and UPVC/food-grade stainless steel piping. Resistant to seawater corrosion, prevents secondary contamination, and extends the overall service life of the equipment. Post-treatment Unit: Includes a UV sterilizer and a mineralization device. Eliminates bacteria in the water, regulates the effluent's TDS and pH levels, improves taste, and meets direct-drinking water standards. III. Core Performance Parameters Item | Detailed Parameters Rated Water Production | 50 m³/d (2000 L/h; under conditions of 25°C and standard seawater TDS) Inlet Water Quality | Seawater / Brackish water; TDS ≤ 35,000 mg/L; Turbidity ≤ 1 NTU; SDI ≤ 3; Residual Chlorine ≤ 0.1 mg/L Effluent Water Quality | Complies with GB 5749-2022 (Standards for Drinking Water Quality); TDS ≤ 500 mg/L; Desalination Rate ≥ 99.2% (Initial) Operating Pressure | 5.5–6.5 MPa (Adjusted based on inlet water salinity) Recovery Rate | 30%–40% (Under standard seawater conditions; an optional concentrate recovery system can increase this to 45%) Power Supply | 380 V / 50 Hz, 3-phase 5-wire system (Customizable for overseas standards such as 110 V / 60 Hz) Installed Power | Approx. 25.5–27.5 kW (Includes optional energy recovery device for lower energy consumption) Equipment Dimensions | Approx. 2200 × 1000 × 1800 mm (Customizable as skid-mounted or containerized units based on site requirements) Operation Mode | Fully automatic, 24-hour continuous operation; supports remote monitoring and control Applicable Environment | Temperature: 5–45°C; Humidity: ≤ 90% RH; Features a corrosion-resistant design suitable for high-salinity coastal environments IV. Core Product Advantages 1. 1. **Purpose-Built for Seawater Conditions: Maximized Durability** Key components are constructed from 316L stainless steel, while all piping and structural frames undergo anti-corrosion treatment to withstand seawater corrosion and high-salinity mist environments. The pre-treatment system features enhanced impurity removal and scale inhibition capabilities, effectively addressing common issues associated with seawater—such as scaling and fouling—thereby extending the service life of the membrane elements (typically 3–5 years with proper maintenance). 2. **High-Efficiency Desalination: Stable, Compliant Output** Utilizing industrial-grade reverse osmosis membranes specifically designed for seawater, the system maintains a stable desalination rate of ≥99.2%. The quality of the treated water remains unaffected by minor fluctuations in raw water salinity. A post-treatment process involving mineralization and disinfection ensures the output water has a smooth, pleasant taste suitable for direct consumption, while simultaneously meeting diverse water requirements for both domestic and industrial applications. 3. **Energy-Efficient Design: Reduced Operating Costs** An optional energy recovery device is available to harness the residual pressure from the concentrate stream, significantly reducing the energy consumption of the high-pressure pump. The fully automated operating mode eliminates the need for dedicated on-site personnel, while the modular design simplifies routine maintenance; filter cartridges and membrane elements can be replaced with ease, ensuring long-term operating costs remain manageable. 4. **Flexible Installation: Skid-Mounted or Containerized Options** The integrated skid-mounted design allows for immediate operation simply by connecting power and water supplies, eliminating the need for complex civil engineering works. Alternatively, a customized containerized unit is available—ideal for mobile or temporary settings such as islands and marine vessels—offering robust protection against wind, rain, and salt mist to withstand harsh outdoor environments. 5. **Comprehensive Safety Protection: Worry-Free Operation** Equipped with multiple safety features—including high/low-pressure protection, water shortage protection, overcurrent protection, automatic flushing, and fault alarm functions—the system supports remote monitoring capabilities. In the event of an anomaly, the unit automatically shuts down to prevent equipment damage and ensure a continuous, reliable water supply. V. Typical Application Scenarios - Domestic water supply for residents on islands and in remote coastal areas - Drinking water supply for fishing vessels, cargo ships, and offshore operating platforms - Centralized water supply for coastal resorts, campsites, and small-scale hotels - Process and domestic water supply for coastal industrial bases and aquaculture farms - Temporary freshwater supply for emergency relief operations and field work - Water quality improvement in brackish water regions, addressing challenges associated with high-salinity water sources VI. Routine Maintenance and Care Guidelines 1. Pre-treatment System Maintenance: - Replace precision filter cartridges every 1–2 months (adjust frequency based on seawater turbidity); - Backwash multi-media/activated carbon filters every 1–3 months, and replace filter media every 12–24 months; - Regularly check chemical dosing unit fluid levels; replenish anti-scalants and biocides to prevent pipeline clogging. 2. Reverse Osmosis System Maintenance: - If the equipment is shut down for more than 24 hours, flush the membrane elements for protection; for long-term shutdowns, inject a specialized protective solution for preservation; - Perform chemical cleaning of membrane elements every 6–12 months (adjust frequency based on changes in permeate flow and desalination rate) to remove fouling and microbial growth from the membrane surfaces; - Regularly inspect high-pressure pumps, pipelines, and valves for leaks, and verify that pressure gauges and flow meters are functioning correctly. 3. Post-treatment and Electrical Control Maintenance: - Replace UV sterilizer lamps every 12 months to ensure effective sterilization; - Regularly clean the electrical control cabinet and inspect wiring terminals to prevent poor electrical contact caused by salt spray corrosion. VII. Optional Value-Added Configurations - Energy Recovery Device: Reduces energy consumption by 20–40%, significantly lowering long-term electricity costs. - Integrated Containerized Unit: Weatherproof (resistant to wind, rain, and salt spray), suitable for outdoor and mobile applications. - Remote Monitoring System: Enables real-time monitoring of equipment operational status and water quality data via mobile devices or computers, with automatic alerts for anomalies. - Concentrate Recovery System: Increases system recovery rates and reduces wastewater discharge, promoting greater environmental sustainability and water conservation. - Dual-Stage Reverse Osmosis + EDI Ultrapure Water Process: Elevates product water quality to industrial ultrapure water standards, meeting specialized production requirements. - Seawater Intake Pre-treatment System: Features a self-cleaning filter combined with an intake buoy, ideal for near-shore water intake scenarios characterized by high turbidity.