Environmental Chemistry: Water

primary sewage treatment

secondary sewage treatment

activated sludge treatment

chlorination

calcium hydrogen carbonates only

magnesium hydrogen carbonates only

Sulphates and chlorides of calcium or magnesium

calcium hydrogen carbonates and magnesium hydrogen carbonates

primary sewage treatment

secondary sewage treatment

activated sludge treatment

chlorination

0.0840277777777778

0.0430555555555556

0.125694444444444

0.167361111111111

typhoid

dysentery

amoeba

hepatitis

0

0.002

0.006

0.021

cholera

dysentery

jaundice

hepatitis

0.02

0.1

0.034

0.01