Pure water is indispensable for human existence. Majority of the diseases can be warded off with pure water in body.
Reverse osmosis water purifiers are the most effective and widely used purification system. In this water is forced through a semi premeable membrane which removes the total dissolved solids such as solids, salts and heavy impurities. The waste water containing contaminants is flushed out.
Features in Modern RO Systems
✔ TDS Controllers: For retaining essential minerals.
✔ Mineral Cartridges: For adding back minerals removed during purification.
✔ Multi-Stage Filtration: For combining RO with UV, UF/carbon filters for extensive purification.
Ultraviolet (UV) Water Purifiers
These water purifiers use UV radiation to kill bacteria, viruses and other harmful microorganisms in water. In this the water passes through a chamber containing UV lamp. The UV rays kill the pathogens and renders the water pure.
Ultrafiltration water purifier
UF purifiers use a membrane similar to RO but the membrane pores are a little large. They are effective in removing bacteria, cysts and suspended solids. They are suitable for first stage of filtration of river waters, lakes and such
Activated carbon water filters- In this water is passed through a carbon block helping in removal of chlorine, organic contaminants and pesticides
Ion Exchange water purifiers–Ion exchange purifiers, also known as water softeners, are used to remove hardness from water caused by excessive calcium and magnesium.
Removes Bacteria & Viruses | Removes Dissolved Salts | Works Without Electricity | Improves Taste | Best For | |
---|---|---|---|---|---|
RO | ✅ | ✅ | ❌ | ✅ | High TDS water, borewell water |
UV | ✅ | ❌ | ❌ | ❌ | Municipal water with bacteria |
UF | ✅ | ❌ | ✅ | ❌ | Low TDS water, areas with no electricity |
Activated Carbon | ❌ | ❌ | ✅ | ✅ | Municipal water, taste improvement |
Sediment Filter | ❌ | ❌ | ✅ | ❌ | Water with visible particles |
Water Softener | ❌ | ✅ (only hardness) | ✅ | ❌ | Hard water areas |
Multi-Stage | ✅ | ✅ | ❌ | ✅ | Areas with uncertain water quality |