Impacts of Arsine in Environment and Health of Employees during the Recovery of Metals from Zinc Sulphate Solutions in Trepça

Impacts of Arsine in Environment and Health of Employees during the Recovery of Metals from Zinc Sulphate Solutions in Trepça

Environmental pollution is one of the most crucial issues of concern in all life fields and is highly required to pay more attention to it in order to protect environment and human been. Environmentally responsible and rentable metallurgical industries put among their key objectives the development of utilization schemes of all of its by-products. The recovery of metals by separation and cementation in metallic forms is overviewed based on the fact that these metals have higher electro-chemical potentials than zinc. Besides zinc, these sulphate solutions contain impurities such as Cu, Cd, Co, Ni, As, Ge, Sb, Se, Te and Ag. Based on the above data, it is evident that the selective recovery of these metals from these solutions represent a significant economic added value, but as well it must take into consideration and arsine as by-product of this process that can be benefit and its effect in environment and employees’ health. In this point of view, in order to revive and improve operation practices as per design capacity in the company is necessary to improve the process condition and to avoid the releasing of the arsine in air.

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C.F.R. (2008) Appendix A to Part 355—The List of Extremely Hazardous Substances and Their Threshold Planning Quantities (PDF) (July 1, 2008 ed.) Government Printing Office. Retrieved October 29, 2011.

Habashi F, (2011) Pollution problems in the metallurgical industry: A review. J Mining & Environ, 2, 17-26.

Holleman AF. Wiberg E, (2001) Inorganic Chemistry. Academic Press: San Diego.

Kazanbaev LA, Kozlov PA, Kubasov VL, Kolesnikov AV, (2006) “Zinc Hydrometallurgy”, ISBN: 5-98191-020-8, Ore & Metals, p. 176

Krüger J, Bernal GM, (2001) Alternative solution purification in the hydrometallurgical zinc production, Proceedings of EMC 2001,

Nelson A, Demopoulos GP, Houlachi G, (2000) The effect of solution constituents and novel activators on cobalt cementation”, Canadian Metallurgical Quarterly, 39, 175-186.

Purification Process (1982) Vieille Montagne, Operating Guide, Book III, Trepca mine, zinc plant, 1982, Mitrovica, Kosovo.

Rodier DD, (1980) The Canadian electrolytic zinc sulphate solution purification process and operating practice. A case study. In: Lead-Zinc-Tin TMS-AIME World Symp. On Metallurgy & Environmental control, pp.157-177.

URL-1. TOXBASE - http://www.toxbase.org) accessed 02/2012)

URL-2.NIOSH Pocket Guide to Chemical Hazards #0040". National Institute for Occupational Safety and Health (NIOSH) https://cdc.gov/niosh/npg/npgd0040.html

URL-3.HSDB. 2007. Arsine. Hazardous Substances Data Bank. National Library of Medicine. http://toxnet.nlm.nih.gov/cgi-bin/sis/htmlgen?HSDB. Octo