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Solar-powered Seawater Desalination Machine with RO and UV Purification


The scarcity of fresh water is a growing concern, affecting billions of people worldwide. While 71% of the Earth’s surface is covered with water, only 3% is fresh, and two-thirds of that is locked away in glaciers. To address this issue, we introduce a solar-powered seawater desalination machine equipped with Reverse Osmosis (RO) and UV purification. This innovative device not only desalinates sea water but also purifies it, making it safe for consumption.

Key Features

  • Fast Water Desalination: Quickly converts salty seawater into fresh water.
  • RO System: Utilizes reverse osmosis for instant purification, effectively removing salt and other contaminants.
  • UV Sterilization: An added UV layer kills bacteria and viruses, ensuring the water is safe to drink.
  • Compact and Portable Design: Easy to move and ideal for beachfronts or long sea voyages.
  • Solar-Powered: Operates on solar energy, making it eco-friendly and reducing operational costs.
  • Easy Maintenance: Designed for hassle-free upkeep.

How It Works

Stage 1: Initial Filtration

The machine features a mesh-based inlet where users can pour salty water. This initial stage separates large waste materials like plastic granules, stones, and weeds. The water then moves into a purification chamber containing layers of sand and gravel, which filter out larger salt particles and other debris.

Stage 2: Reverse Osmosis

The partially purified water is then subjected to a reverse osmosis process. Here, three filtration membranes effectively separate fresh water from the salty water, trapping salt particles in the membrane filters.

Stage 3: UV Sterilization

The purified water is stored in a tank above the system. When the tap is opened, a UV light activates to sterilize the water, deactivating any remaining bacteria and viruses.

Power Source

The machine operates on a large battery, charged by two 50-watt solar panels. This solar water purification feature makes the system highly portable and ideal for areas with abundant solar energy.


  • Solar Panels
  • Water Tank
  • Stage 1 Purifier Vessel
  • Water Pumps
  • Electrical Circuitry
  • UV Tube
  • Membrane Filters
  • Steel Tap
  • Steel Handle
  • Piping
  • Pipe Fittings
  • Battery
  • And more…


The approximate dimensions of the machine are 650 x 400 x 550 mm (L x W x H).

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