How to tell if the activated carbon is not working

The easiest way is to directly observe, smell and taste the activated carbon (not the activated carbon, but the water purified by the activated carbon). Smell is if the original adsorbed chlorine, mouldy or other odours reappear, it means that the activated carbon may have been saturated. Taste is the deterioration of the taste of water, such as the original improvement of the sweet taste disappeared, the activated carbon may have failed. Look at the activated carbon adsorption of pollutants will gradually turn black, if the surface of the obvious lumps or unusually dark colour, may have been saturated, need to be replaced. Long-term use may breed microorganisms, resulting in a sticky surface.

 

A more professional way to test whether the activated carbon has failed is to use the residual chlorine test (for tap water treatment). Take a glass of unfiltered water, add a chlorine tester and record the colour change (indicating the chlorine content). Take another glass of activated carbon filtered water and test for residual chlorine as well. If the residual chlorine level rises significantly after filtration, the activated carbon's ability to adsorb chlorine has decreased.

 

Activated carbon clogging pores, water purifier water speed significantly reduced (need to exclude the possibility of other cartridge clogging).

It should be noted that activated carbon has a certain period of time to be used. activated carbon for wastewater treatment (or activated carbon adsorption for wastewater treatment) should be replaced once every 3-6 months (adjusted according to the hardness of the water and the frequency of use). The activated carbon for air purification is replaced every 3-6 months (depending on water hardness and frequency of use). Activated carbon for air purification should be replaced every 6-12 months. If the recommended interval is exceeded, the activated carbon may have become ineffective (adsorption capacity gradually decreases), even if there is no visible change. Failure can lead to secondary pollution and bacterial growth. In addition to activated carbon for water purification, take a look at our activated carbon for supercapacitor.