Many of groundwater containing excessive iron and manganese ions and fluoride ions, will give the health of consumers and industrial production has brought great harm, "drinking water health standards," states: iron <0.3mg / L, Mn <0.1mg / L, F <1.0, when the raw water fluoride, iron, manganese content exceeds the above criteria, it is necessary for processing. 
 Work 
 Iron, manganese, fluoride groundwater by aeration, the water began to oxidation of iron, manganese sand filter when the flow through the filtration layer, the role of the media and the media surface chemistry of iron and manganese bacteria biochemical, filter layer started to occur in the biochemical oxidation and exposure to the rejection of physical adsorption, so that the water of iron and manganese oxidation, fixation and removal. 
 Scope 
 1, small towns, rural water supply, industrial and mining enterprises owned ground water iron, and manganese. Fluoride and softened water treatment. 
 2, for the iron content is not more than 10mg / L, manganese content is not more than 1.5mg / L, PH value of not less than six groundwater treatment.