coconut husk and peat moss (decomposed sphagnum)--evaluated the water retention and lixiviation
of Nitrogen in the form of nitrate.
The company removes the least stable compounds responsible for heavy metal lixiviation
and segregates the ferrites into different pigment grades that are suitable for different formulations and coating applications.
Simultaneously with the decrease in the influx of carbonate products by surface and subsurface waters as a result of considerable lixiviation
of till layers, carbonate balance in lake water was disturbed: oversaturation was replaced by undersaturation and the stage of Si[O.
Although the observed values are different throughout the study, they may be associated with two factors: the seasonality, as during the wet period, considered winter in the Amazon region, there is a rising of the water levels that cause the lixiviation
of the Guama river banks and the islands near the metropolitan region of Belem.
Des essais preliminaires de lixiviation
des roches mineralisees indiquent que les echantillons d'uranium et de radon sont facilement lessives dans l'environnement actuel.