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What Is The Purpose Of Charcoal In A Water Filter

July 09, 2021 3 min read

What Is The Purpose Of Charcoal In A Water Filter

As humans, we must continue to drink clean water because it aids digestion and keeps us hydrated, supporting a healthy lifestyle. However, if there are small pollutants in the water, it may be unsafe to drink. Also, if you consider the various harmful effects of drinking contaminated water, it’s preferable to find a solution to the problem. One of the popular solutions is charcoal, the activated charcoal in particular. But, what is the purpose of charcoal in a water filter?

Passing water through charcoal filters is one of the most effective methods of filtration. The procedure uses activated charcoal. This chemical is not the same as the gas used in BBQ grills.

Charcoal filters are a great way to remove contaminants from water that is both natural and effective. Superheating charcoal without oxygen and treating it with nitrogen and argon produces activated charcoal. To draw pollutants to its surface, it uses the adsorption principle.



The adsorption process is how activated charcoal works. Adsorption, as opposed to absorption, involves chemical rather than physical binding of these contaminants. The holes in activated charcoal enhance the surface area of the charcoal by up to 2000 square meters per gram, significantly increasing its adsorption efficiency.

Activated charcoal is natural and good in removing numerous pollutants from water, such as volatile organic compounds and chlorine, without using chemicals or stripping the moisture of salts and minerals makes it an excellent material for water filters. It draws the carbon-based organic contaminants in the water to the carbon in the charcoal, which quickly bonds to these impurities, as you may recall from chemistry class. On the other hand, other chemicals are not attracted to the carbon and hence pass past the filter, depending on their molecular weight and polarity.

Because the process creates connections between chemicals and keeps the contaminants in the filter, you must replace the charcoal filters once they filled all the pores. Because cleaning and replacing charcoal filters are simple and inexpensive, they are popular among many households.


Retains mineral salts.

Minerals and salts found in water are useful to the human body. It introduces toxic chemicals and particles unfit for ingesting due to pollution. Most water filters remove hazardous contaminants together with helpful ions and minerals during the purification process.

Activated charcoal’s structure and content allow it to bind harmful organic particles to its surface. The rest of the minerals can pass through. To get rid of any germs that your filter can’t catch, you’ll need to use another filter.

Cheaper than most filtration systems.

Water filtration systems are important investments for both homes and businesses. Unfortunately, the majority of them are prohibitively expensive to install. Charcoal filters are a great option because they save a lot of money.

Because of their cheap cost, water suppliers may offer the service to customers at a reasonable price.

Improves the flavor.

Most people hate the taste of tap water, claiming that it is metallic in flavor or has an unpleasant odor. The compounds, such as chlorine added to tap water to remove bacteria and diseases found in reservoirs are often to blame for this flavor. Though this is an essential practice to preserve public health, it frequently results in individuals avoiding drinking tap water, putting them in danger of dehydration, or purchasing plastic bottled water, which is harmful to the environment.


What is the purpose of charcoal in a water filter? For a good reason, charcoal water filters are one of the most popular water filters on the market. Activated charcoal provides a slew of economic, environmental, and health advantages. Today, give a charcoal water filter a try in your home and see the difference.

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