A Reverse Osmosis (RO) system purifies water by removing contaminants and impurities through a multi-stage filtration process. Here's a simplified breakdown of how it works:
1. Pre-Filtration
- Sediment Filter: The water first passes through a sediment filter that removes larger particles like dirt, sand, and rust.
- Carbon Filter: Next, it goes through a carbon filter that removes chlorine, chloramines, and other chemicals that can affect taste and odour.
2. Reverse Osmosis Membrane
- Semi-Permeable Membrane: The heart of the RO system is the semi-permeable membrane. Water is forced through this membrane under pressure. The membrane allows only water molecules to pass through, blocking contaminants like heavy metals, salts, and other impurities.
3. Post-Filtration
- Carbon Post-Filter: After passing through the RO membrane, the water goes through another carbon filter to remove any remaining tastes or odours, ensuring the water is clean and fresh.
4. Storage Tank
- Storage: The purified water is then stored in a tank until it is needed. This ensures a steady supply of clean water.
5. Final Polishing Filter
- Polishing Filter: Before the water is dispensed, it passes through a final polishing filter to ensure it is of the highest quality.
Key Points:
- Pressure: The system relies on water pressure to push water through the membrane. Higher pressure results in better filtration.
- Waste Water: RO systems produce some wastewater, which carries away the contaminants. This is a normal part of the process.
Benefits:
- Removes Contaminants: Effectively removes a wide range of contaminants, including heavy metals, bacteria, viruses, and dissolved salts.
- Improves Taste: Enhances the taste and odour of water by removing chlorine and other chemicals.
