How Does Reverse Osmosis Work?
Here We Explain The Process

How does reverse osmosis work to purify water? That’s the question a lot of persons ask who are interested in buying a reverse osmosis water filter system.

Most people are aware that a reverse osmosis water filter system will provide one of the purest forms of water around.

A reverse osmosis water filter will remove over 99% of contaminants from most water sources.

But how a reverse osmosis system works will give you a much better understanding of why a reverse osmosis water filter is so effective.

We will now go through the steps of how a reverse osmosis system operates.

So How Does Reverse Osmosis Work?

We will now take a look at the process of how a reverse osmosis system works.

A reverse osmosis water filter consists of three main parts: membrane system, pre-filter, and storage tank.

Ahead of the reverse osmosis filter system is usually a combination of a pre-filter and a carbon filter.

The pre-filter is used to remove sediments from clogging the membrane.

The carbon filter is needed to remove chlorine because chlorine has a tendency to significantly affect the quality of the membrane.

The chlorine will make you have to change your membrane sooner than the recommended time as well as affect the effectiveness of filtering your water.

Reverse osmosis membrane divides the canister into two separate zones: high pressure and low pressure.

The reverse osmosis membrane has very tiny holes. The holes are so small that only water and a few gases such as hydrogen sulphide will pass through.

Where the water enters is usually the high pressure side. As the water is pushed through the membrane from the high pressure side to the low pressure side, all the contaminants are flushed out of the reverse osmosis system without going over the other side.

There is no way for the contaminated water to find its way back into your filtered water. The air gap is the device that prevents the water from re-entering your reverse osmosis system.

There is usually a storage tank attached to the reverse osmosis system. Reverse osmosis systems take long to produce purified water so the storage tank stores water for when you need water instantly.

If you have a large demand of water throughout the day, then you may require a larger storage tank.

You can also use a permeate tank to drive the low side pressure further down to the suction area of the water pump, and then drive the delivery side up much higher so you have a better delivery pressure.

All this is done by using the brine (waste water) as a driving force just like a sprinkler uses water.

This will increase the output of your membrane because it increases the differential pressure. Remember that the greater the differential pressure the greater the input.

So next time someone ask the question ,"how does reverse osmosis work?", you will be able to explain the process in simple terms.



Also Read:

GE Reverse Osmosis Systems

Microline Reverse Osmosis

Compare Reverse Osmosis Systems

Kent Reverse Osmosis

Sears Reverse Osmosis

Watts Reverse Osmosis

Return from How Does Reverse Osmosis Work To Homepage