How do carbon tanks function in water treatment?

Carbon tanks function primarily through the process of absorption, where the activated carbon in the tanks adsorbs various impurities, contaminants, and organic compounds from the water. The porous texture of activated carbon allows it to effectively trap and hold onto these substances, removing them from the water as it passes through the tank. This process enhances water quality by reducing the concentration of harmful chemicals, odors, and tastes, making the water more suitable for dialysis and other uses.

While filtration and disinfection are important processes in water treatment, they do not accurately define the primary role of carbon tanks. Filtration generally involves the physical removal of particles and sediments, whereas disinfection typically targets pathogens and harmful microorganisms by using chemical or physical means. Ion exchange involves a different mechanism, where undesirable ions are replaced with more desirable ions, often utilizing resins rather than carbon. Therefore, the correct choice highlights the unique absorption capacity of carbon tanks in treating water efficiently.