In a world where access to clean water is increasingly becoming a concern due to pollution and environmental degradation, water purifiers stand as guardians of health, providing safe drinking water for households and communities. With technological advancements, water purification systems have become more efficient, affordable, and accessible. This comprehensive guide explores the importance of water purifiers, their types and benefits, and the market scenario in Nepal, including prices and prominent suppliers.
Water purifiers are devices designed to remove impurities, contaminants, and harmful substances from water, making it safe for consumption. These impurities can range from bacteria, viruses, and parasites to chemicals, heavy metals, and sediment. Purification methods vary, including filtration, distillation, and chemical treatment, each targeting specific contaminants to ensure water safety.
In Nepal, the price of water purifiers varies depending on the type, brand, and features. Here's an approximate price range for popular purifier types:
|
Type |
Price |
|
25 LPH RO Water Purifier |
Rs. 8000 - Rs. 12000 |
|
Aquanatural Grand R.O Plus Water Purifier 12 Liter |
Rs. 9000 - Rs. 11000 |
|
Semi Commercial Ro- Jet Aqua Water Purifier Patriots 25 LPH |
Rs. 9300 - Rs. 13500 |
|
Hot and Cold (RO) Alkaline Ro Water Purifier, For Office, Home etc. |
Rs. 10000 - Rs. 14000 |
|
Jet Aqua Six Plus Variant 1 Water Purifier |
Rs. 8000 - Rs. 11000 |
|
Nexus Aquatica RO: Advanced Water Filtration System For Pure And Refreshing Hydration |
Rs. 9000 - Rs. 12000 |
|
Nexus Seiries Brio Water Purifier |
Rs. 11000 - Rs. 14000 |
|
Smart Plus Water Filter |
Rs. 2000 - Rs. 5000 |
|
Nexus Zinc Copper Alkaline Water Purifier DISPENSE |
Rs. 12000 - Rs. 16000 |
|
White Jet Aqua RO Water Purifier |
Rs. 3000 - Rs. 5800 |
|
Nexus Zinc Copper Alkaline Water Purifier LIV |
Rs. 7000 - Rs. 10000 |
|
Jet Aqua Water Purifier |
Rs. 6000 - Rs. 9500 |
|
Nexus Zinc Copper Alkaline Water Purifier LUXE |
Rs. 11500 - Rs. 15000 |
|
Nexus Zinc Copper Alkaline Water Purifier MULTI- PRO |
Rs. 5500 - Rs. 8500 |
|
Nexus Zinc Copper Alkaline Water Purifier Under The Counter RO System |
Rs. 9500 - Rs. 12500 |
Type: Wholesaler/Dealer/Distributor
Location: Omsatiya-1 Thuthipipal, Rupandehi
Verified Supplier
Type: Importer
Location: Sitapaila, Kathmandu
Verified Supplier
Type: Wholesaler/Dealer/Distributor
Location: Teku, Kathmandu
Verified Supplier
Health Protection: Contaminated water can cause various waterborne diseases, like cholera, typhoid, and diarrhoea. Water purifiers eliminate these risks by removing harmful pathogens, ensuring that the water consumed is safe and healthy.
Improved Taste and Odour: Purified water often tastes and smells better as it is free from chlorine, sulphur, and other substances that can affect its taste and odour.
Environmental Conservation: Dependence on bottled water contributes to plastic pollution. Water purifiers offer a sustainable alternative by reducing the need for single-use plastic bottles.
Cost-Effective: Investing in a water purifier can prove cost-effective in the long run compared to purchasing bottled water regularly. It offers a continuous supply of safe drinking water at a fraction of the cost.
Water purifiers work through various methods to remove contaminants and impurities from water, making it safe for drinking and other uses. Here's a general overview of how a typical water purifier works:
Filtration: Filtration is one of the primary methods used in water purification. Water passes through a physical barrier that traps particles, sediment, and larger impurities. The types of filters used can vary widely, including activated carbon filters, ceramic filters, and sediment filters.
Activated Carbon Adsorption: Activated carbon is highly effective at removing organic compounds, chemicals, and chlorine from water. It works by adsorbing these contaminants onto its porous surface.
Reverse Osmosis: Reverse osmosis (RO) is a process that uses a semi-permeable membrane to remove ions, molecules, and larger particles from water. Pressure is applied to the water, forcing it through the membrane, which allows pure water to pass through while contaminants are left behind.
UV (Ultraviolet) Sterilization: UV sterilization uses ultraviolet light to kill bacteria, viruses, and other microorganisms present in water. When water is exposed to UV light, it disrupts the DNA of these organisms, rendering them unable to reproduce and causing them to die.
Ion Exchange: Ion exchange is a process where ions in the water are exchanged for other ions attached to a resin or other medium. This method is often used to remove hardness ions like calcium and magnesium, as well as heavy metals.
Distillation: Distillation involves boiling water to produce steam, which is then condensed back into liquid form. This process effectively removes contaminants that have a higher boiling point than water, leaving behind purified water.
Chemical Treatment: Chemicals such as chlorine, ozone, or hydrogen peroxide can be added to water to kill bacteria and other microorganisms. However, chemical treatment is often used in conjunction with other purification methods rather than as a standalone method.
Working Principle: RO purifiers utilise a semi-permeable membrane to separate and remove contaminants from water. When pressure is applied to the water, it passes through the membrane, allowing only pure water molecules to permeate, while impurities such as dissolved solids, heavy metals, and microorganisms are left behind and flushed away.
Purification Process: The purification process in RO systems involves multiple stages, including sediment filtration, carbon filtration, and the main RO membrane filtration, ensuring thorough removal of impurities and providing high-quality drinking water.
Advantages: RO purifiers are highly effective in removing a wide range of contaminants, including dissolved salts, heavy metals, and microorganisms. They produce clean and pure-tasting water, making them suitable for areas with high levels of contamination.
Working Principle: UV purifiers use ultraviolet light to disinfect water by deactivating and destroying the DNA of harmful microorganisms such as bacteria, viruses, and parasites. When water passes through the UV chamber, the UV rays penetrate the microorganisms' cell walls, rendering them unable to reproduce and causing them to die off.
Purification Process: UV purification is a chemical-free process that does not alter the taste, odour, or pH of water. It is particularly effective against bacteria and viruses, providing an additional layer of protection against waterborne diseases.
Advantages: UV purifiers are eco-friendly and energy-efficient, as they do not require the use of chemicals or excessive electricity. They provide fast and reliable water disinfection, making them suitable for use in areas with biological contamination.
Working Principle: Activated carbon filters utilise a highly porous carbon material with a large surface area to adsorb impurities and contaminants from water. As water passes through the carbon bed, organic compounds, chlorine, VOCs, and other chemicals are trapped and removed, leaving behind clean and fresh-tasting water.
Purification Process: The adsorption process in activated carbon filters effectively removes common water contaminants, including chlorine, chloramine, pesticides, herbicides, and industrial chemicals. Some carbon filters may also incorporate additional filtration media, such as KDF or catalytic carbon, to enhance contaminant removal.
Advantages: Activated carbon filters improve the taste and odour of water by removing chlorine and organic compounds. They are cost-effective, easy to maintain, and compatible with various water treatment systems, making them a popular choice for residential and commercial applications.
Working Principle: Gravity-based purifiers rely on the force of gravity to filter water through multiple stages of filtration media, typically including activated carbon, ceramic, and sediment filters. As water flows downward through the filters, impurities and contaminants are trapped, while clean water collects in a storage tank or container.
Purification Process: Gravity-based purifiers are ideal for areas with limited or no access to electricity, as they operate without the need for power or pressure. They effectively remove sediment, bacteria, cysts, and other impurities, providing safe drinking water without the use of chemicals or complex filtration systems.
Advantages: Gravity-based purifiers are low-cost, low-maintenance, and easy to operate, making them suitable for households, camping, and emergency preparedness. They offer a sustainable and reliable solution for purifying water in remote or off-grid locations, ensuring access to safe and clean drinking water for all.