Components of portable desalination devices: 1. Water Intake System 2. Pre-treatment System 3. High-pressure Pump 4. Reverse Osmosis Membrane 5. Brine Disposal System 6. Freshwater Storage System 7. Power Supply System 8. Control System

A portable desalination device, as the name suggests, refers to a device that can be carried around, easily moved, and can desalinate seawater. It is usually designed in a compact form and is suitable for use by individuals, teams or small units in emergency situations, especially when fresh water resources are scarce at sea or in coastal areas.

Container-type design is a typical representative of mobile desalination units. This design uses a standard 20-foot or 40-foot container as the shell and integrates the desalination equipment into it, which has the following advantages:Convenient transportation，Quick installation，Strong flexibility.

This article explores the principles of reverse osmosis technology in desalination plants and its applicability in different regions. Geographical environment, technical level, economic conditions, policy support and innovative technology are influencing factors. High-income areas and developed countries have better applicability, while low-income areas and developing countries are challenged.