作者: Raquel Dalla Costa , Célia Regina Granhen Tavares , Eneida Sala Cossich , Terezinha Aparecida Guedes
DOI: 10.4025/ACTASCITECHNOL.V29I2.704
关键词: Factorial design of experiments 、 Nuclear chemistry 、 Contact time 、 Humic acid 、 Mercury (element) 、 Stereochemistry 、 Wastewater 、 Solubility 、 Chemistry
摘要: The dental wastewater can contribute to the total daily mercury load on environment. Factorial design of experiments is useful analyze factors that influence this solubility. aim present study was examine effects operational variables, humic acid, temperature, pH and contact time may affect solubility as amalgam residue in reduction process. Based factorial experiments, acid concentration most significant factor process, followed by other factors. parameters affecting showed when [HA], T CT increases decreases there an important increase For tested conditions, high obtained using = 1.0 g L -1 , temperature 35 o C, 4.0 10 days.