TREATABILITY STUDY OF WASTEWATER GENERATED IN THE ANALYSIS OF ATOMIC ABSORPTION SPECTROMETRY BY SELECTIVE PRECIPITATION, ADDITION OF COAGULANT, ADDITION OF COAGULANT MORE ADSORPTION WITH ACTIVATED CHARCOAL AND ACTIVATED CHARCOAL ONLY
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Abstract
The study evaluated the removal of the metals cadmium (Cd), copper (Cu), Lead (Pb), Chromium (Cr), nickel (Ni) and zinc (Zn) present in the effluent generated in the analysis of atomic absorption spectrometry using the four treatments: selective precipitation, precipitation by addition of coagulant, coagulant precipitation by adding more and activated carbon adsorption treatment by activated carbon adsorption. The treatments were 100% removal of bands of pH above 8. In this case, to release the effluent, the pH should be adjusted to meet current legislation.
Key words: coagulation, adsorption, heavy metals.
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[1]
Lúcia Ribeiro, M., Garcia, A., Gabriel Lucca, B., Nobuyoshi Ide, C. and Ribeiro Ide, W. 2012. TREATABILITY STUDY OF WASTEWATER GENERATED IN THE ANALYSIS OF ATOMIC ABSORPTION SPECTROMETRY BY SELECTIVE PRECIPITATION, ADDITION OF COAGULANT, ADDITION OF COAGULANT MORE ADSORPTION WITH ACTIVATED CHARCOAL AND ACTIVATED CHARCOAL ONLY. Revista AIDIS de ingeniería y ciencias ambientales: Investigación, desarrollo y práctica. 5, 3 (Dec. 2012), 78–88.