Activated carbon is then made in to water filters . These water filters may be used for a variety of applications from home water filtration systems to industrial water treatment processes and everything in between .But why is activated carbon so good at cleaning water?How does it work?
Let us explore the complex processes that take place in the structure of activated carbon and how it purifies the water:
1. Spongy Structure
Activated carbon has a large number of small pores formed during the process of activation.These are small pores . They vary in size . This gives it a unique structure that traps contaminants and chemicals as water passes through the filter.So more pores, more places to catch the impurities and the higher chance of effective adsorption.
2. Surface Area Increase
Activated carbon is like a sponge . It is small in size but has a large surface area so there is enough space for contaminants to stick, ensuring that water that flows through it is thoroughly cleaned.
The larger surface area also allows for the adsorption of a wide variety of contaminants, including chlorine, volatile organic compounds (VOCs), pesticides, herbicides, and even some heavy metals, such as lead and mercury.
3. How contaminants are trapped
As the water moves through the filter, contaminants are adsorbed on the porous surface of the carbon particles. They stick to the surface and they stay there, basically they are trapped.
4. Selective removal of impurities
Activated carbon has many wonderful properties including selectivity for different contaminant types. Activated carbon filters can be customised for specific water quality issues, whether it is the removal of chlorine from tap water, volatile organic compounds (VOCs) from well water, or to reduce the taste of certain chemicals, activated carbon filters offer customisable solutions for a variety of filtering needs.
5. Regeneration and lifespan
Over time, activated carbon absorbs contaminants, which reduces its ability to filter. However, unlike some filter media, activated carbon can often be regenerated by process such as thermal activation or chemical cleaning, thus extending its life and reducing waste.
Activated carbon filters need regular maintenance and replacement to continue functioning as a water purifier.
