DANTAS, L. V. M.; http://lattes.cnpq.br/7156088659096084; DANTAS, Lorena Vanessa Medeiros.
Abstract:
The problem of water is a factor that effects much of Brazil, and especially the
northeastern region, which has long periods of drought, which wakes water an asset that
is difficult for the population to access. Taking this context into account, the use of
groundwater has established itself as being the most accessible way that the population
has to meet their basic consumption needs. However, the indiscriminate use of these
sources becomes a vehicle liable to chemical contamination and this, therefore, way
cause damage to human health such as the appearance of pathologies, in this way, the
use of water treatments with natural adsorbents is a resource of low cost, easy access
and no risk of chemical contamination. In this perspective, as the northeast already had
the extraction of oil from Oiticica (Licania Rigida) as a source of income, the use of the
peel of the fruit of Oiticica is a possible source of use as a natural adsorbent for water
treatment. This work aimed to demonstrate the efficiency of the natural adsorbent from
the Oiticica fruit as a viable and low-cost medium for treating the reducion of electrical
conductivity and total hardness of water. This work aimed to demonstrate the efficiency
of the natural adsorbent from the Oiticica fruit as a viable and low cost means for
treating the removal of electrical conductivity and total water hardness. For this, it was
necessary to carry out determinations of pH, turbidity and electrical conductivity. For
this, it was necessary to carry out determinations of pH, turbidity and electrical
conductivity. As well as, the chloride content, alkalinity, total hardness, STD and the
sodium and potassium concentrations by the flame photometer technique. Then, the
chemical composition of the skin of the fruit of the Oiticica in natura was analyzed in
the X – ray fluorescence spectrometer Dispersive Energy – EDX and after the treatment
of the samples. After conducting the study, it was possible to verify the efficiency of
cork as a natural adsorbent for the treatment of water samples. With this adsorbent, it
was possible to verify the reduction of electrical conductivity and total hardness and
also the concentrations of STD. The natural adsorbent used from Oiticica is promising
because it is an economically viable material, does not pose risks to human health and
does not pollute the environment after use.