Chlorine removal principle of calcium sulfite ball

chlorine removal principle of Calcium Sulfite Ball

By Zhao from Onlyzone,a manufacturer of water treatment bio ceramic ball filter media in China.

chlorine removal balls (also known as Calcium Sulfite Balls) are made of food-grade calcium sulfite materials composited with low-temperature sintering. The product is strong and there is no powder shedding on the surface. Calcium sulfite content reaches about 90%. As a material for removing residual chlorine, calcium sulfite balls have the advantages of high efficiency, stability, safety and environmental protection, and can be applied to water purification treatment products such as water purifiers, water heaters, and showers.

Chlorine removal principle of calcium sulfite ball

The chemical formula for calcium sulfite balls to remove residual chlorine in water is as follows:

(1) The reaction starts by dissolving a small amount of calcium sulfite in water.

CaSO3+H2O→Ca2+SO32

(2) The dissolved sulfite ions react with residual chlorine in water.

SO32-+ClO (with the smell of bleach)→Cl-(without the smell of bleach)+SO42-

(3) Excess sulfite ions can also instantly react with oxygen in the air.

2SO32-+O2→2SO42-