In case of drilled wells, the high nitrate content of the water is often a problem.
Subsurface waters are contaminated by nitrate mostly as a result of human activities – artificial fertilisation, sewage desiccation animal husbandry, etc.
The consumption of nitrate is highly dangerous to infants, mainly due to its reduction to nitrite in the stomach, reducing the blood’s oxygen transport capability, causing cyanosis and, at higher concentrations, asphyxia.

The nitrate content may be decreased below the limit value (50 mg/l) with the help of Dinamatic equipment filled with nitrate-selective resin charge.