72T/d Seawater Desalination Equipment

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72T/d Seawater Desalination Equipment

The seawater desalination system adopts the international advanced reverse osmosis technology and is designed by optimizing the system.

Applicable to cargo ships, oil tankers, offshore drilling platforms, islands, stations and coastal cities short of water.

The system can effectively remove inorganic salts, heavy metal ions, organic bacteria, bacteria and other harmful components in seawater, and desalinate seawater into high-quality water in accordance with the National drinking Water Sanitation Standard (GB5749-2022).

The whole system is equipped with advanced flow meter, pressure control instrument and safety pressure relief device, and is equipped with advanced detection and monitoring system to ensure stable operation of the system and high quality water production. When the water quality exceeds the warning salinity value, the system automatically opens and drains. Valves, which direct the production of water into the waste water line) and provide accurate values for the operation of the system.

Application scope

The equipment with water yield 3000L/h, which is suitable for water consumption of less than 340-360 peoples.

Product Parameters

72TPD Container Seawater Desalination Equipment
Model WY-SW-72
Water yield 3m3/h
RO product water quality
National Standard for Drinking Water(GB5749-2022)
Desalination rate
Output water saltness <700mg/L
Recovery rate
40%(Depending on temperature and inlet water quality)
Operation pressure 3.5~5.5Mpa
AC380V / 50Hz / Three phase
Protection grade

20 Feet Container

(Equipped with temperature insulation layer, air conditioning)

Net weight

* 1. The amount of water produced refers to the amount of water produced under the conditions of an inlet water temperature of 25 ° C, a salt content of 35,000 mg/L, and an operating pressure of 5 MPa.

   2. Equipment can be customized according to customer requirements.

System function

1. High-pressure unloading, when the high-pressure pump outlet pressure exceeds 6.2MPa, the equipment automatically stops and protects and emits an audible and visual alarm.
2. Low-pressure shutdown protection. When the pre-treatment water supply is insufficient and the high-pressure pump inlet pressure is lower than 0.05MPa, the protection action will be automatically stopped and an audible and visual alarm will be issued.
3. The pre-treatment is equipped with an auto multi-way valve for large-flow backwashing and full washing.
4. Configure the reverse osmosis membrane cleaning system to physically clean, chemically clean and refill the reverse osmosis membrane module.

Main accessories

● Feed Pump: SUS316, CNP brand

● Multimedia Filter: Ø900x1900mm, FRP, 1pcs

● Precision Filter: 20m3/h,40" x 5μm, FRP, 1pcs

● High Pressure Pump: SUS316, Diamond brand

● Reverse Osmosis Membrane: 8040, 6pcs, USA DOW/ TORAY/ HYDRANAUTICS brand

● Membrane Housing: 1000PSI, FRP, 2pcs, FirstLine brand

● CIP Chemical Cleaning Device: System matching

● Conductivity Meter: Createc

● Electric Element: Schneider brand or equivalent

Equipment list

1. Water treatment equipment
2. User manual, Operation video*
3. Final document (product certificate, factory test report, packing list, equipment drawing)
4. Other consumables accessories

Component drawing:

Control Cabinet Reverse Osmosis System

Dosing Device

Precision Filter Multi-media Filter Rinse Tank

High Pressure Pump
Feed Pump

Please contact us for more details.

Mobile: +86 133 2668 2480(Steve)

                     +86 133 2665 7486(Abey) 

Whatsapp: 137 9898 8771(Steve)

                           159 1922 3536(Abey)

Email: steve@zhwywater.com


Process flow diagram

Water inlet → Multi-media filter → Precision filter → High pressure pump → Reverse osmosis system → Product water

Water quality

First-stage RO water quality: National Standard for Drinking Water (GB5749-2022).

Second-stage RO water quality: Pure water standard.

Performance and features

● Reverse osmosis seawater desalination technology is mature and advanced, the desalination rate is up to 99.5%.

● Energy saving design, low energy consumption and low cost of water production.

● Rigorous process design ensures long system life and low maintenance costs.

● Stable water quality: advanced water quality control and sophisticated system maintenance program to ensure long-term stability of effluent water quality.

● Easy to operated and maintained, cleaned and repaired without disassembly, easy to managed.

● Efficient energy recovery system and overall optimization design greatly reduce energy consumption.

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Customer Cases

For fishing boats

Small desalination machine

Offshore work platform

RO fresh water generator


Seawater desalination unit

Philippine Islands

Seawater desalination equipment


Container seawater desalination system

Sea sand desalination

Modular seawater desalination equipment

Reverse Osmosis Technology

The reverse osmosis membrane is an artificial semipermeable membrane made of a semi-permeable membrane that has certain characteristics and is a core component of reverse osmosis technology.

The principle of reverse osmosis technology is to remove these substances and moisture according to the osmotic pressure of the solution, according to the fact that other substances cannot pass through the semipermeable membrane. The membrane pore size of the reverse osmosis membrane is very small, so that dissolved salts, colloids, microorganisms, organic matter, and the like in the water can be effectively removed.

The system has the advantages of good water quality, low energy consumption, no pollution, simple process and easy operation.

Applicable field

Ship Island Industrial process water

Offshore working platform Coastal water shortage area Desert area

Raw Water Quality

TDS: ≦36000mg/L

Inlet Temperature: 5~45℃

Inlet Flow: 7.5m3/h

Product Water Quality

TDS: <700mg/L (City tap water standard)

Desalination Rate: ≧99.5%

Operating Pressure: <6.5MPa


Voltage: 220V / 380V /440V, 50~60HZ, Three-phase

Protection Levels: IP54


Water yield
Recovery rate
72 20 40 20 Feet

Equipment can be made according to customer’s requirements, only standard models are shown in the form.

Please contact us for more details.

Email: steve@zhwywater.com, wy@zhwywater.com