How do you extract sulphur dioxide from acid rain?

Answer 1

Sulphur dioxide is made through factories and processed into thick black smoke which travels through the air. Then the sulphuric dioxide magically transforms into "Acid Rain".

The acid rain effects the Earth badly it destroys the trees, obviously we need trees to breathe because trees make the oxygen. Acid rain effects our health, our environment and the animals which we eat. When the acid rain kills the animals the acid rain is trapped in the animals and no one knows.

Hope this helped...

Charlie Wallis

Answer 2

Sulfur dioxide (or sulphur dioxide - if you use British spelling) is soluble in water where it can dissociate to form a relatively weak acidic solution by the reaction

SO2 + H2O HSO3− + H+

Further oxidation of SO2, usually in the presence of a catalyst such as NO2 forms H2SO4 - sulfuric acid - which is a very strong acid.

The only effective way to extract the SO2 is to remove it before goes into the atmosphere. Typically this is done by passing the air containing the SO2 through a "scrubbing" tower where it passes through a sprayed solution of water and calcium oxide, aka lime. The sulfur dioxide reacts with the lime by the reaction

CaO + SO2 → CaSO3.