What process is mainly used to remove chlorine and chloramine from tank water?

The process primarily used to remove chlorine and chloramine from tank water is adsorption. In this process, contaminants such as chlorine and chloramine adhere to the surface of a solid material, typically activated carbon. Activated carbon is effective for this purpose because it has a large surface area and a high porosity, enabling it to trap these chemicals efficiently. When water flows over the carbon, the chlorine and chloramine molecules stick to the carbon particles, effectively reducing their concentration in the water.

This method is preferred for water purification in aquariums and other systems since it does not alter the chemical composition of the water as drastically as some other processes might. Adsorption is a common technique in various filtration systems because it can target specific contaminants selectively, making it suitable for maintaining the quality of tank water.