Elimination Cyanide with Hydrogen Peroxide (H2O2) and Calcium Hypochlorite (Ca(OCl)2) on Gold Mine Waste from North Luwu, South Sulawesi
American Journal of Environmental Protection
Volume 5, Issue 4, August 2016, Pages: 97-102
Received: Jun. 15, 2016; Accepted: Jun. 27, 2016; Published: Jul. 13, 2016
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Muntasir, Department of Chemistry, Graduate School of Science, Hasanuddin University, Makassar, South Sulawesi, Indonesia
M. Sjahrul, Department of Chemistry, Graduate School of Science, Hasanuddin University, Makassar, South Sulawesi, Indonesia
Muhammad Zakir, Department of Chemistry, Graduate School of Science, Hasanuddin University, Makassar, South Sulawesi, Indonesia
Indah Raya, Department of Chemistry, Graduate School of Science, Hasanuddin University, Makassar, South Sulawesi, Indonesia
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In this study, the elimination of cyanide by the addition of hydrogen peroxide and calcium hypochlorite was investigated. This study was conducted to determine the optimum conditions of H2O2and Ca(OCl) 2: concentration, pH and contact time, and the combined ratio of concentration H2O2 with Ca(OCl) 2 to remove cyanide in gold mining wastewater. Cyanide obtained by steam distillation of wastewater by steam distillation and Barnstead electromantel and assay using 0.02N silver nitrate. The results showed that the cyanide level was 50.22% w/v. The optimum conditions were obtained when the concentration of H2O2 at 500 ppm, pH 8 within 60 minutes contact time and Ca(OCl) 2 concentration was at 500 ppm, pH 8 within 60 minutes contact time. The best cyanide removal was obtained at the concentration ratio of 5:5 amounting to 45.76% w/v.
Cyanide, Hydrogen Peroxide, Calcium Hypoclorite, Steam Distillation, Silver Nitrate
To cite this article
Muntasir, M. Sjahrul, Muhammad Zakir, Indah Raya, Elimination Cyanide with Hydrogen Peroxide (H2O2) and Calcium Hypochlorite (Ca(OCl)2) on Gold Mine Waste from North Luwu, South Sulawesi, American Journal of Environmental Protection. Vol. 5, No. 4, 2016, pp. 97-102. doi: 10.11648/j.ajep.20160504.14
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