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has been cited by the following article:

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

  AUTHORS: Silvia C. Gutiérrez-Gutiérrez, Genoveva Rosano-Ortega, Carlos Vega-Lebrún, Juan Manuel López, Pedro Ávila-Pérez, Sonia M. Martínez Gallegos, Daniel Cruz González

  KEYWORDS: Hazardous Liquid Waste; Treatment for Recycling; Silver; Mercury; Chromium

  JOURNAL NAME: Green and Sustainable Chemistry, Vol.3 No.2, May 15, 2013

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