50 T/D Fully Automatic Seawater Desalination System

50 T/D Fully Automatic Seawater Desalination Equipment – ​​Product Introduction

I. Product Overview

This 50-ton-per-day (50 T/D) fully automatic seawater desalination reverse osmosis (RO) system utilizes a proven high-pressure RO desalination process. Specifically designed for seawater and high-salinity brackish water sources, it treats water to meet standards for potable water and industrial freshwater. The unit features an integrated skid-mounted design, combining pretreatment, chemical dosing systems, high-pressure RO, online water quality monitoring, and a fully automatic electrical control system. It is easy to install and ready to operate upon startup, making it widely suitable for water-scarce locations such as islands, fishing wharves, coastal construction sites, seaside industrial facilities, and resorts.

II. Core Technical Parameters

1. Rated Water Output: 50 tons/day (2.08 m³/h)
2. Feed Water Quality: Standard seawater (TDS 30,000–36,000 mg/L)
3. Product Water Standard: Conductivity ≤400 μS/cm; complies with *GB 5749-2022 Standards for Drinking Water Quality*; suitable for drinking, domestic washing, landscaping, and industrial use.
4. System Recovery Rate: 35%–42% (standard seawater design)
5. Control Method: Fully automatic PLC touch-screen control; one-touch start/stop, automatic flushing, and fault alarms.
6. Power Supply: 380V/50Hz (customizable to 440V/60Hz marine version)
7. Frame Structure: 304 stainless steel frame; corrosion-resistant against seawater, suitable for high-salinity, humid coastal environments.
8. Dimensions: 220 x 150 x 230 cm
9. Water Output: 50,000 L/D

III. Equipment Configuration List 1. Pre-treatment System: FRP multi-media filtration tank to remove sediment, suspended solids, and impurities from seawater, protecting downstream reverse osmosis (RO) membrane elements; automatic backwash control valve eliminates the need for manual filter media cleaning.
2. Dosing System: Antiscalant dosing unit for continuous chemical injection; prevents salt crystallization and calcium carbonate/sulfate scaling on membrane surfaces, extending membrane service life.
3. High-Pressure System: Seawater-specific high-pressure booster pump, high-pressure membrane housings, and seawater RO membrane elements designed to withstand high osmotic pressure.
4. Monitoring Instruments: Multi-channel high-pressure gauges, rotameters, and an online permeate conductivity display for real-time monitoring of pressure, flow rate, and product water salinity.
5. Electrical Control System: Color touchscreen interface; features automatic start/stop, scheduled membrane flushing, high/low-pressure protection, low-feed-water protection, and overload protection; automatic on-screen alarm notifications identify fault causes.

IV. Product Advantages

✅ Integrated Skid-Mounted Design: Factory-assembled unit with pre-connected piping; requires only connections to the raw water inlet, power supply, and concentrate discharge line for immediate operation, ensuring a short installation period.
✅ Fully Automatic Operation: No need for 24-hour manual supervision; the system automatically flushes the RO membranes at scheduled intervals to mitigate scaling and reduce O&M workload.
✅ Corrosion-Resistant Design: Stainless steel frame and corrosion-resistant piping; designed for harsh coastal environments characterized by high salinity and humidity, ensuring durability against rust and aging.
✅ Real-Time Water Quality Monitoring: Built-in online conductivity display allows for instant checks of desalinated water quality, ensuring stable output.
✅ Flexible Customization: Adaptable to specific water conditions (e.g., high sulfate levels, high-salinity brackish water) and operational environments (marine or land-based); options include upgrading to 2205 duplex stainless steel high-pressure pumps and ultra-high-pressure membrane systems, making it suitable for high-salinity seawater projects in Cambodia and coastal Southeast Asia.
✅ Low O&M Costs: Uses standard, widely available consumables (membranes, pumps, filter media), simplifying long-term maintenance.

V. Application Scenarios 1. Domestic water supply for island campsites, guesthouses, and resorts
2. Freshwater replenishment for coastal construction sites, offshore platforms, docks, and aquaculture facilities
3. Process water and make-up water for coastal industrial plants
4. Seawater desalination projects for coastal villages, towns, and overseas Southeast Asian sites

VI. Equipment Functions

50 TPD Fully Automatic Seawater Desalination System
Skid-mounted, integrated seawater desalination unit producing 50 tons of potable freshwater per day.
Features fully automatic control via an intelligent PLC touchscreen, including automatic backwashing and fault alarms.
Constructed with a 304 stainless steel frame resistant to coastal salt-spray corrosion; standard configuration includes FRP pre-filtration, an antiscalant dosing system, and high-pressure seawater reverse osmosis membranes.
Direct seawater intake; produces compliant drinking water with one-touch operation. High-pressure versions can be customized based on local seawater quality; suitable for land-based, island, and overseas desalination projects.