Reverse Osmosis Filters: How RO it Works
These days there are plenty of reasons to worry about the quality of the water that comes out of our taps. This worry is especially prevalent given the Flint Michigan water crisis has been going on for almost a decade.
In most cases, citizens don’t need to concern themselves with the quality of water coming out of their taps. But there are systems we can install to ensure bad contaminants like lead and silica don’t get through to the water we use.
One solution is to install reverse osmosis filters. Reverse osmosis, (RO) is an effective technology that ensures water quality is up to standard for many industrial applications. These include chemical manufacturing, pharmaceutical, and food & beverage industries.
If you’re looking for a new filtration system for your building(s), keep reading.
In this article, you’ll learn more about how reverse osmosis works and the benefits of reverse osmosis filters.
What Is Osmosis?
Before we get into reverse osmosis, it’s helpful to know how osmosis works.
Osmosis is a naturally occurring process where a weak saline solution will migrate to a stronger saline solution. Basically, a solution that is less concentrated will naturally have a tendency to want to move to a solution with a higher concentration.
This process occurs when plants absorb water through their roots or when our kidneys absorb water from the blood.
Reverse Osmosis Water Filter Semi-permeable Membrane
A key component of reverse osmosis is there must be a semi-permeable membrane present.
Think of the semi-permeable membrane like a screen door. Air can freely pass through the screen but contaminants in the air, like bugs, cannot.
In a water system with varying saline concentrations, the water molecules will be able to pass through the membrane while the sodium chloride molecules (i.e. saline) will be left on the other side of the membrane. As more water molecules move to the higher concentration of saline, the concentration drops and becomes closer to equal with the solution on the other side.
How Does Reverse Osmosis (RO) Work?
As you might have guessed, reverse osmosis is the osmosis process going the other way. However, there’s one key difference, which is that energy must be applied to make reverse osmosis work.
You see, osmosis occurs in nature without any energy applied to the process. To get it to work in reverse, you have to “push” water back through the reverse osmosis filter or membrane. To do this, the system must apply pressure that is greater than the natural pressure present.
When water is pushed back through the reverse osmosis membrane, most of the sodium chloride molecules (and other contaminants) are left behind.
The Reverse osmosis membrane is a filtration process that has revolutionized the water treatment industry in recent years. This technology uses a semi-permeable membrane to remove impurities from water, making it pure and tasteless. As water goes through the membrane, it separates water molecules from contaminants like chlorine, lead, and sediment.
The RO membrane operates using the principle of high pressure to force water molecules through a tiny pore size that only allows water molecules to pass through. The resulting pressure gradient creates a concentration of dissolved substances on one side of the membrane, which allows for differential pressure to drive water molecules from the low concentration side to the high concentration side. This separation process results in high levels of water purity and can remove up to 99% of impurities.
RO filter systems have proven to be an effective way of providing clean, pure, and healthy drinking water to households, industries, and communities around the world.
How Do Reverse Osmosis Systems Work?
Now that you understand the reverse osmosis process, you might be wondering how we can harness that process for everyday use.
To start, you’ll need a full system that includes feed water, a pump, a reverse osmosis filter, and a collection pipe for the permeate water.
To achieve the pressure needed to force the water through the filter, you will need to use a pump. The amount of pressure you need to get the saline water to cross the membrane will depend on how concentrated the solution is.
The pump forces the water through the reverse osmosis filter, catching contaminants and salt.
If you’re wondering what happens to the saline water left behind the membrane, it’s filtered off into a reject stream which rejoins the water supply or is drained off. That’s because a reverse osmosis system will use a cross-filtration system, meaning it siphons off the contaminated water.
Why Do I Need a Reverse Osmosis Water Filter System?
There are several reasons why you might want to use reverse osmosis filters. Read on to find out why a RO system is right for you.

They Remove Almost Everything But Water
Because reverse osmosis filters have a pore size of about 0.0001 microns, hardly anything can pass through them. That means they can trap most protozoa, bacteria, and viruses.
Reverse osmosis filtration systems are an effective method for removing a wide range of contaminants from water, including harmful chemicals like metal ions and excess salts. Metal ions like copper, lead, arsenic, and radium can leach into water supplies from natural sources, industrial runoff, or aging plumbing systems.
Excess salt can also cause health problems like high blood pressure when consumed in large quantities, making it important to remove as much as possible from drinking water.
Other chemical contaminants that can be removed through reverse osmosis include phosphorous, nitrates, and fluoride. By trapping these harmful substances, reverse osmosis systems help to ensure that the water we drink is safe and healthy.
You Work in a Highly Precise Industry
There are some industries that require absolute precision. Having water that you know is as close to pure as you can get is critical for the integrity of your products.
Why is RO so effective in these industries?
Reverse osmosis is a highly efficient water treatment process that is widely used in modern industries for a variety of different applications. This technology has gained popularity among highly precise industries for its ability to remove dissolved salts and impurities from water with a high degree of precision, ensuring the production of high-quality products.

The process involves using semi-permeable membranes to separate water molecules from dissolved minerals, salts, and other contaminants, producing pure water that is free from any impurities. Reverse osmosis not only improves the quality of water used in industrial processes, but it also reduces the environmental impact by minimizing wastewater output.
This technology has become an essential part of the manufacturing processes of various industries, including pharmaceuticals, food and beverage, electronics, and many more. With its unmatched ability to produce pure water, reverse osmosis technology continues to revolutionize the way we produce and use water in modern industries.
What Types of Industries Can Benefit From a Reverse Osmosis Water Filtration System?
The power industry can use reverse osmosis filters to reduce the number of solids in water. They need to do this before feeding it back into boilers for power generation.
In the pharmaceutical industry, water used in the production of medicines must meet the USP grade. Reverse osmosis can help professionals meet this standard.
Reverse osmosis water is also useful in the automotive industry. It can be used for the applications of metal finishing as well as in tWrite me he assembly of semiconductors.
Of course, the food & beverage industry also needs to be concerned with the quality of water they use to produce their products.
RO systems are also important for industries located in areas with non dependable water conditions.
Your Business Operates in a High-Salinity Area
If your business is located in a coastal area with high salinity, it makes sense to install a reverse osmosis system. This is because reverse osmosis systems are specifically designed to effectively remove salt and other minerals from water. Coastal areas are known to have high levels of salinity due to the proximity to the ocean, which can negatively impact the quality of the water used for various applications, including drinking water and industrial processes.
By installing a reverse osmosis system, you can ensure that the water used in your business is free from salts, minerals, and other contaminants, making it safe and suitable for use. This not only helps to improve the quality of your products and services, but also saves you money in the long run by reducing the need for costly maintenance and repairs. In addition, reverse osmosis systems are highly efficient and environmentally friendly, as they require less energy to operate than other water treatment methods.
They also produce less waste, which means that you can minimize your business’s impact on the environment. Overall, if you’re operating a business in a coastal area with high salinity, investing in a reverse osmosis system is a smart choice that can provide numerous benefits, including increased efficiency, improved water quality, and reduced environmental impact.
You can also see reverse osmosis as taking advantage of what you have around you.
Is Reverse Osmosis Right for You?
When constructing a new building or replacing a water system, reverse osmosis filters are a widely available option for most businesses. If pretreated and maintained correctly, a reverse osmosis system will last for years.
Of course, not every business needs a reverse osmosis system. But when you operate in an industry where the lack of precision means people get hurt or products fail, then a reverse osmosis system really should be a serious consideration.
To learn more about reverse osmosis filters, get in touch with us.
More FAQ About Reverse Osmosis Filtration Systems.
Q: What is a Reverse Osmosis System?
A: A reverse osmosis system is a type of water filtration system that uses a semipermeable membrane to remove impurities from water.
Q: How does a Reverse Osmosis System work?
A: A reverse osmosis system uses a semipermeable membrane to filter water. The membrane allows water molecules to pass through, but blocks larger particles such as minerals and contaminants.
Q: What does a Reverse Osmosis System remove from water?
A: A reverse osmosis system can remove a wide range of impurities from water, including minerals, contaminants, and chemicals.
Q: What is RO water?
A: RO water refers to water that has been filtered through a reverse osmosis system, resulting in a purer and safer form of drinking water.
Q: What are the benefits of using a reverse osmosis system?
A: Using a reverse osmosis system provides many benefits, including improved taste and odor of water, removal of harmful impurities, and better overall health.
Q: How often should I change the filters in my RO system?
A: It is recommended to change the filters in your RO system every 6-12 months, depending on usage and the quality of your source water.
Q: Can a Reverse Osmosis System remove minerals from water?
A: Yes, a reverse osmosis system can remove minerals from water, but it is important to note that some minerals are beneficial for human health.
Q: What is a RO water system?
A: A RO water system is a type of water filtration system that uses a reverse osmosis process to purify water and remove impurities. It is often used in homes and businesses to provide safe, clean drinking water.
Q: How does a Reverse Osmosis Drinking Water System differ from a regular drinking water system?
A: A reverse osmosis drinking water system differs from a regular drinking water system in that it uses a semipermeable membrane to filter water and remove impurities, resulting in a purer and healthier form of drinking water.
Q: What is the lifespan of a RO system?
A: The lifespan of a RO system depends on factors such as usage, maintenance, and the quality of the source water. With proper care, a RO system is designed to last for several years.






