Pollution by heavy metals, due to their toxic nature and other adverse
effects, is one of the most serious environmental problems. Many heavy metal
ions, such as mercuric ions are detected in industrial wastewaters originating
from metal plating,
mining activities, paint manufacture, etc. This ion isn’t
biodegradable and tends to accumulate in living organisms, causing various
diseases and disorders. Therefore, it should be removed from aqueous solution
before discharge.
