Ag, Hg and Cr Precipitation for Recycling Derived of Hazardous Liquid Waste

作者: Silvia C Gutiérrez-Gutiérrez , Genoveva Rosano-Ortega , Carlos Vega-Lebrún , Juan Manuel López , Pedro Ávila-Pérez

DOI: 10.4236/GSC.2013.32007

关键词: ChemistryContaminationChromiumLiquid wasteMercury (element)WastewaterAfter treatmentHeavy metalsHazardous wasteEnvironmental chemistry

摘要: Production of different compounds can generate large amounts hazardous wastes which are dangerous to the environment and human health. The disposal or treatment liquid waste rich in heavy metals like silver (Ag), mercury (Hg) chromium (Cr) is difficult due strong acidity toxicity usually present these contaminants. For this study, several research works were reviewed order obtain an efficient viable time removal efficiency. A series chemical precipitations evaluated for efficiency reduction waste. precipitation all three lasted 30 minutes after wastewater presented concentrations 0.064 mg·L-1 Ag, 0.010 Hg 0.048 Cr, with a standard pH (7.5-8.5); efficiencies 94.31% 99.99% 98.17% Cr.

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