What Function does an RO Membrane Play in Water Purification?

What Function does an RO Membrane Play in Water Purification?

Consumers today have a diverse range of water purifiers to choose from, including Reverse Osmosis (RO), Ultraviolet (UV), Ultra Filtration (UF), Alkaline, and more. Hence, when venturing into the market to buy a water purifier, it is essential to be well-versed with different water purification technologies like RO, UV, and UF to make an informed decision.

In this article, we will try to understand the function of an RO membrane in water purification.

What is an RO Membrane?

Fundamentally, an RO membrane is a semi-permeable barrier that filters contaminants. This membrane, which is installed in water purifiers, works by selectively letting water molecules pass through while obstructing impurities.

Think of it as a tiny barrier that only allows little water molecules to pass through, keeping out pollutants such as dirt, dust, chemicals, and microscopic organisms. Water that passes through this filter is thus considerably cleaner and safer to drink.

What is the Function of RO Membrane in Water Purification?

1. Filtration marvel:

An RO membrane's main job is to filter out contaminants such as heavy metals, minerals, and microbes. It functions as a molecular sieve, letting through only water molecules and keeping out bigger particles.

2. TDS Reduction:

Total Dissolved Solids (TDS) refers to the total concentration of dissolved substances in drinking water. TDS generally includes organic and inorganic substances like calcium, magnesium, nitrates, bicarbonates, chlorides, and sulphates. The safety and taste of water can be impacted by Total Dissolved Solids (TDS), and an RO membrane helps remove excess TDS from your water.

3. Microbial Removal:

RO membranes are essential in removing bacteria, viruses, and other microbial pollutants from your water. RO membranes have a semipermeable membrane that filters out harmful bacteria, viruses, and miniscule microbes.

4. Heavy Metal Hurdle:

There are serious health concerns associated with heavy metals like lead, mercury, and arsenic. These dangerous metals are successfully trapped by the RO membrane, which serves as a barrier to keep them out of the purified water.

What are the Tips to Maintain RO Membrane?

The longevity of your water purifier depends on the RO membrane's performance. Follow these tips to maintain your RO membrane:

Aquaguard Water Purifiers With RO Membrane

Aquaguard has a wide range of water purifiers with RO membranes. Here, we have listed a few of them:

1. Aquaguard Marvel NXT RO+UV+MTDS+Alkaline+SS Water Purifier

Aquaguard Marvel NXT RO+UV+MTDS+Alkaline+SS water purifier is suitable for homes with TDS of up to 2000 mg/litre. The water purifier follows a multi-stage advanced purification method, making it ideal for all water sources.

The I-Filter removes fine suspended particles such as dust, dirt, mud, and sand from water. The Chemi-Block reduces excess chlorine and organic impurities in the water while absorbing bad taste and odour. The RO membrane reduces TDS, hardness, pesticides, and heavy metals like arsenic, lead, and mercury. The UV E-Boiling ensures that each drop of water is as pure & healthy as water boiled for 20+ minutes. The Alkaline cartridge instantly increases the pH and makes the water alkaline. The TDS regulator adjusts the TDS of purified water to provide healthy water.

The Aquaguard water purifier is also equipped with a high-grade 304 Stainless Steel water storage tank that is corrosion-free, tough, and durable. In addition to this, the smart LED indicators alert you in case of service reminders, filter life warnings, and electronic errors.

2. Aquaguard Glory RO+UV+MTDS+Alkaline+SS Water Purifier

Aquaguard Glory comes with a multi-stage purification process. It has a 6-stage filtration making it powerful for pure water. The UV E-boiling delivers water that is as safe and pure as water boiled for over 20 minutes. The I-Filter removes suspended particles, the Chemi-Block eliminates unwanted chemicals, chlorine, and organic impurities, the Ultra Filtration removes harmful viruses and bacteria, and the Active Copper Booster Cartridge infuses the right amount of copper ions into your water. The water purifier also comes with an Alkaline cartridge that instantly increases the pH level of the water and makes it Alkaline. This cartridge also contains Activated Carbon which makes the water safer, healthier, and tastier by removing contaminants. Additionally, the water purifier is also equipped with a storage tank made of high-grade 304 stainless steel that’s durable, tough, and corrosive-free.

3. Aquaguard Blaze Insta RO+UV+TA+Hot & Ambient Water Purifier

This Aquaguard water purifier offers hot and ambient water with zero wait time. The duel dispense technology in the water purifier dispenses hot and ambient water instantly. The child lock feature in the water purifier prevents accidental scalding while dispensing hot water. There is a removable drip tray for hands-free filling into bottles. The Superior RO ensures purity by removing bacteria, viruses, biological contaminants, chemicals, pesticides, and heavy metals like lead, mercury, and arsenic from the water. UV E-boiling delivers water as safe and pure as water boiled for over 20 minutes. The 5 stages of filtration- Sedi-Filter, Chemi Block, Reverse Osmosis Cartridge, UV e boiling, Active Copper Booster Cartridge, TDS Regulator make sure you get purified water.

Moreover, the 304 stainless steel tank in the water purifier enhances the machine's durability. The Hot Water Steam that is connected to the hot tank through a 100% copper tube ensures zero risk of plastic burning and leaching. This water purifier can be flexibly installed anywhere- over the counter or mounted on a wall.

Frequently Asked Questions (FAQs)

1. Which contaminants can RO membranes remove?

RO membranes can effectively remove bacteria, viruses, chemicals, pesticides, and heavy metals like lead, mercury, and arsenic from water.

2. How often should RO membranes be replaced?

RO membrane needs to be changed every year to ensure that the water is of the highest quality.


When it comes to water purification, the RO membrane is the unsung hero that works tirelessly to make sure the water you drink is pure and clean. The purity that RO membranes provide should not be ignored.

If you are looking for a water purifier with an RO membrane, opt for Aquaguard. They offer an extensive range of RO, UV, UF, and Alkaline water purifiers. These purifiers are equipped with Aquaguard's patented Active Copper Technology that preserves essential minerals such as copper in your water. Additionally, these water purifiers feature a high-grade 304 stainless steel storage tank that is corrosion-free, durable, and tough.

Need more help?
Need more help?
WhatsApp Chat
Chat with Us