<b>Factorial design analysis on the solubility of total mercury in reduction process</b> - DOI: 10.4025/actascitechnol.v29i2.704
Abstract
The dental wastewater can contribute to the total daily mercury load on the environment. Factorial design of experiments is useful to analyze factors that influence this solubility. The aim of the present study was to design experiments to examine the effects of operational variables, humic acid, temperature, pH and contact time that may affect the solubility of total mercury as dental amalgam residue in reduction process. Based on the factorial design of experiments, the humic acid concentration was the most significant factor in this process, followed by other factors. The parameters affecting the solubility of total mercury showed that when the [HA], T and CT increases and pH decreases there is an important increase of total mercury concentration in process. For the tested conditions, the high total mercury concentration was obtained using the humic acid concentration = 1.0 g L-1, temperature = 35oC, pH = 4.0 and contact time = 10 days.Downloads
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Published
2008-02-12
How to Cite
Costa, R. D., Tavares, C. R. G., Cossich, E. S., & Guedes, T. A. (2008). <b>Factorial design analysis on the solubility of total mercury in reduction process</b> - DOI: 10.4025/actascitechnol.v29i2.704. Acta Scientiarum. Technology, 29(2), 173-179. https://doi.org/10.4025/actascitechnol.v29i2.704
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Section
Chemical Engineering
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2019CiteScore
36th percentile
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