Ions leaching in deformed and undeformed soil columns

In this work it was evaluated the dynamics of ions leaching in deformed and undeformed soil columns. The used soil proceeded from an area irrigated with swine wastewater in different dilutions (0%, 25%, 50% and 75%) and cultivated with soybean. Breakthrough curves for nitrate, potassium and electric conductivity were constructed. According to the results, in the deformed and undeformed soil columns, the nitrate presented greater mobility, followed by the total salts and the potassium, proportional to the treatments. The methodology of undeformed soil columns was not adequate, possibly due to the compacting during the sampling and the difficulty in the blockade of preferential ways throughout all columns.

wastewater; environmental; ions dynamics