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Industrial Reverse Osmosis Water Purifier in Bangladesh

Clean water is a basic necessity for human beings. But access to safe drinking water is quite challenging in different parts of Bangladesh. It’s a major concern for many of us.

However, to solve this problem, we are introduced to several methods and an industrial reverse osmosis water purifier is one of them. In this article, we will discuss what a reverse osmosis water purifier is, its purification method, as well as some other related things.

So, without further ado, let’s dive into the details.

What is an Industrial Reverse Osmosis Water Purifier?

An industrial reverse osmosis water purifier is a water treatment system that uses the process of reverse osmosis to remove impurities and contaminants from water. The system consists of a series of filters, a semi-permeable membrane, and a storage tank.

It is widely used in industries and commercial sectors where large quantities of clean water are handled regularly to meet various purposes.

Reverse Osmosis Water Purification Method

This method includes a series of filtration stages and a semi-permeable membrane to remove impurities, contaminants, and dissolved solids from water. Explore stages in detail below.

Filtration Stages

Filtration stages typically have three stages. They are –


The first stage of the RO system involves the pre-filtration process. Water passes through a sediment filter or activated carbon filter to remove larger particles, sediments, chlorine, and other common impurities.

The semi-permeable membrane gets protected from potential damages caused by debris or contaminants from this stage.

Reverse Osmosis Membrane

The semi-permeable membrane is the main part of the RO system. It blocks the majority of toxicity like viruses, bacteria, heavy metals, and others.

The membrane utilizes the principle of osmosis and applies pressure to overcome natural osmotic forces to remove impurities


After passing through the membrane, the water undergoes post-filtration to further enhance its quality and taste. This stage typically includes a carbon filter that eliminates any remaining odors, tastes, or volatile organic compounds, ensuring the water is clean and refreshing.

Osmotic Pressure and Membrane Selection

Reverse osmosis works by applying external pressure to overcome the natural osmotic pressure of water. Osmotic pressure refers to the force created by a solvent (water) to equalize the concentration of dissolved substances on both sides of a semi-permeable membrane.

By applying pressure higher than the osmotic pressure, the reverse osmosis process can separate pure water from the concentrated solution, leaving behind the impurities.

The selection of the appropriate semi-permeable membrane is crucial for effective purification. Different membranes have varying pore sizes, which determine the level of filtration and rejection rates for specific contaminants.

The choice of the membrane is based on the quality of the feed water and the desired purity level of the treated water.

Waste Disposal

While reverse osmosis is highly efficient in removing impurities, it does generate a certain amount of wastewater. This waste, known as RO reject or concentrate, contains concentrated impurities and is discharged from the system.

Monitoring and Maintenance

Regular monitoring and maintenance are necessary to ensure the optimal performance of the reverse osmosis system.

You should check the pressure, flow rates, and quality of treated water regularly. Membrane cleaning or replacement may be required depending on the feed water quality and usage patterns.

Following the manufacturer’s guidelines and engaging in routine maintenance helps prolong the lifespan of the system and maintains its efficiency.

Factors to Consider Before Purchasing A RO Water Filter

So, if you are concerned about your water safety and decided to purchase a RO water filter, you should know several factors about this machine.

This understanding will help you to buy the perfect purifier that will meet your specific requirements.

TDS Level after RO purification

Assessing the TDS level of your water source is the most priority task before purchasing a water filter. TDS or Total Dissolve Solids level determines the safety of the water. Basically, a TDS level below 500 is considered safe drinking water, while a level above 1000 is unsafe for drinking.

You have to choose a purifier as per the TDS level of your water.

Consider The Capacity of RO Water Filter

Consider your daily water consumption. The capacity of the purifier should align with your needs, ensuring an uninterrupted supply of purified water.

Power outage is also a significant issue in this case. If outages are common in your area, you need to go for a purifier with a higher capacity.

Safety Measures of The Water Filter

Water purifiers require regular maintenance and filter replacement. It will be better if you get an alert about their replacement so that you won’t be out of safe drinking water suddenly.

Maintenance Cost of The Purifier

Since maintenance is required after a while, you have to check the costs associated with the servicing. Assess the affordability and availability to ensure your long-term satisfaction.

Price Consideration

Lastly, price is the significant variable for making any purchasing decision and the RO filter is not an exception. The RO water filter price in Bangladesh varies significantly depending on several factors.

The factors include capacity, filtration stages, and quality of materials used. Generally, the larger the capacity and the more advanced the filtration stages, the higher the price.

Compare prices and consider your budget but be sure that your chosen product can meet all your requirements. However, don’t compromise any essential feature or quality just because of less price.

Best RO Water Filter in Bangladesh That You Can Buy This Year

Since there are a lot of options available in the market, let us help you shortlist the best 2 from them.

Final Words

The industrial RO water purifier is a highly effective and efficient system for producing clean and safe drinking water especially, where access to clean water is limited.

As you can see the reverse osmosis water purifier price in Bangladesh can differ significantly based on the type and specifications, you have to be very careful about your buying decision.

Drink safe water and stay healthy!

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