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Quality of ground water is becoming an emerging issue in the water supply and health sectors. The ground water in the past was considered safe for drinking purpose but now it
came to be known that many shallow tube wells contain arsenic at concentrations higher than the safe limit set for drinking purpose by World Health Organisation (WHO) in 1993.
In order to produce drinking water of good quality, besides arsenic, other contaminants
should be removed if present in ground water. Two of these contaminants, which can cause
problems to consumers, are the metals – iron and manganese. Manganese is a mineral that
naturally occurs in rocks and soil and usually coexist with iron (Petrusevski et al., 2007). The most common sources of manganese in groundwater are naturally occurring, for example from weathering of iron and manganese bearing minerals and rocks (dissolution of the reduced form Mn2+). Industrial effluent (the iron and steel industry acid), mining, drainage, sewage may also contribute iron and manganese to local groundwater.
UNESCO ,   (2008 )
Type / Script:
Progress Report in English
Thematic Group:
 UNESCO : Educational, Scientific and Cultural
03.05.00  -  Water
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