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What are the effects of activated carbon filters on water?

by Dearfilter - Updated 2022-12-29 09:22:10

If you are worried about the quality of drinking water, now is the time to start exploring different water treatment schemes to prevent unimaginable situations. In the process of your search, you may encounter a powerful water purification method, which is increasingly popular in American households and municipal authorities: activated carbon filtration.


Today, carbon filters are leaders in the field of water filtration. The activated carbon block filter may have unique characteristics, which can effectively remove up to 99% of suspended solids, volatile organic compounds, sediments, heavy metals, chloramines and other pollutants in drinking water.


In this article, I'll discuss the effects of activated carbon block filters on water. Continue reading to make sure you don't miss any important details.

What Is A Carbon Filter?


Activated carbon filters, also referred to as activated charcoal filters, differ from conventional water filters. They are composed of tiny, porous sponges or black beads that have undergone processing to improve their ability to trap impurities. To increase the carbon's surface area, heat or steam is applied first. A wider variety of contaminants can be absorbed and trapped by carbon thanks to the activation process' increased pore opening. As a result, carbon is a much more effective filtering medium.


Due to their enormous surface area, the carbon particles can interact with as many active sites in the filter media as feasible. This guarantees that the contaminants are eliminated or absorbed to the fullest extent possible. The surface area of one pound (450g) of activated carbon is equivalent to about 100 acres. This almost triples the size of the Pentagon.


This makes activated carbon a fantastic medium for removing pollutants from water by adsorption, in addition to its other remarkable qualities. In order to eliminate offensive aromas like animal and smoking fumes, it is also utilized to make respiratory masks, exhaust fans, and air conditioners.


Types of Activated Carbon and How does the Carbon Block Filter Water?


Granular activated carbon (GAC) and powdered activated carbon (PAC) are the two types of available activated carbon filters. Loose, millimeter-sized activated carbon granules are a component of GAC filters. These filters use a variety of media, with coconut shell along with coal, and other materials. The advantages of GAC filters are enormous.


On the other hand, powdered activated carbon (PAC) is created by mixing a binding agent with finely ground granules that are typically smaller than 1 micron in size. 


GAC filters don't allow channeling and have 7–10 times the surface area of PAC filters.


Particle filtration is the first stage in the functioning of activated carbon filters. This is the fundamental stage of filtration when heavy pollutants including sediments, debit, and sand are filtered. Physical Adsorption is the next  step in the filtration process. Adsorption is a surface phenomena that draws polar substances to adhere permanently to the surface of carbon particles depending on the temperature and water flow. The vast total surface area of tiny carbon particles results from their limitless number. For instance, only 4 grams of activated carbon medium has 6,400Sqm of surface area.


The average pore size of carbon particles in activated carbon filters is just 0.5 micrometers, allowing water to retain all of its beneficial minerals while hazardous contaminants are removed. Chemical adsorption and processes including reduction, formation of coordinating compounds, and catalytic degradation also remove pollutants from carbon filters.


Which hazardous substances can the activated carbon block filter remove from tap water?


Many pollutants in water can be successfully removed using activated carbon filters. Activated carbon filters, according to NSF International and the Environmental Protection Agency (USA), can get rid of 70 to 80 pollutants from water and lower another 30. They also slightly lessen 22 other pollutants.


These are only a few of the contaminants that activated carbon filters are capable of removing from water:
Chlorine Byproducts
PFOS (Perfluorooctanesulfonic acid)

What Substances Can Not Be Removed By The Activated Carbon Block Filter?

Unfortunately, there are some substance that your activated carbon block filters can't remove. The following compounds, if present at dangerous amounts, may require special attention:

Distillates from petroleum or hydrocarbons
Insoluble Solids
Healthy Minerals
Biological Pollutants
Most microbiological pollutants
Heavy Metals


Are Carbon Block Filters Necessary?


The type and concentration of contaminants in your water will determine whether you need a carbon block filter or not.

To quickly and precisely determine the quality of the water in your home, perform a home water quality test. These tests are inexpensive and simple to obtain. They also provide quick and useful results that are easy to understand. If any of these contaminants are detected in your water after a test, a carbon filter might be a wise investment. If your tests come back negative, you can still install one.


How to choose the right water filter?


To protect the health of your family and yourself, the appropriate type of water filter must be selected. Always select a water filter type based on your usage and needs.


Prior to making a purchase, you should always look for the standard certification granted by regulatory agencies for a specific filter. Filters with certification kinds 42, 53, 401, etc. from the National Sanitation Foundation (NSF) have varying degrees of efficiency and specialty.


NSF 42, for instance, removes chlorine in addition to other typical pollutants.


Next, examine the components that were employed to create the filtering system. The type of filtering element employed within a water filter determines its quality. Therefore, coconut shell-based activated carbon filters are environmentally friendly.


For long-lasting support, you should also examine the filter housing's durability. The lifespan of a PP (Polypropylene) case is longer when it is pure or of high quality. High-quality plastic housing are typically favored over Steel and other metals since they are more likely to corrode over time.


You can check for different filters at our website: https://www.dearfilter.com/

Make your choice and purchase the one that best suits you and your family.




A fantastic water treatment technology is the activated carbon filter. Numerous issues with water contamination that the majority of us face every day can be resolved by it. The price of one carbon filter is between $20 and $40 with an average of $30. Do not wait to purchase one.

Thanks for reading!


Brand refrigerator water filter supplier

  • W


    2022-12-29 09:41:02


    Thanks for update! I am a regular customer of yours and am very satisfied with your refrigerator water filter!

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