BARROS, Aldre Jorge Morais.; PRASAD, Shiva.; LEITE, Valderi Duarte.; SOUZA, Antonio Gouveia.
Résumé:
Pollution of a hydrographic basin can cause alterations in
physical, chemical and biological properties of water mass,
committing its use for the human consumption and for other
types of activities, depending on the contamination or pollution
level. The conventional treatment methods for effluents containing
heavy metals produce signifi cant amounts of byproducts with
recalcitrant characteristics; besides the techniques being onerous
their reproducibility is low. The search for cheaper and definitive
solutions led to the development of clean technologies, among
these technologies the sorption process based on utilization of
absorbent substances for these elements can be pointed out. This
work has the objective of evaluating the sorption process of heavy
metals by organic solid waste utilizing the thermogravimetric
technique. The results obtained demonstrated that the profiles
of the thermogravimetric curves of the organic solid waste
presented significant modifications in the physical and chemical
characteristics when submitted to the heavy metal sorption
process.
