Manual for Training Artisanal and Small-Scale Gold Miners

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ii GMP - Manual for Training Artisanal and Small-Scale Gold Miners Operating retorts .................................................................................72 Home-made retorts..............................................................................73 How to reduce the retorting time ........................................................81 Recycling mercury..............................................................................83 Melting gold........................................................................................84 The Ratio of Mercury Lost to Gold Produced (Hglost:Auproduced).........85 Amalgamation centers ........................................................................86 Effects of mercury vapor exposure .....................................................87 Basic knowledge for miners................................................................89 Cyanide Leaching of Gold.......................................................................92 Introduction.........................................................................................92 Toxicity of cyanide .............................................................................93 Cyanide leaching.................................................................................95 Interferences to cyanide leaching........................................................96 Industrial practices..............................................................................97 Recovering gold from the pregnant solution.....................................102 Cyanide management........................................................................106 Basic knowledge for miners..............................................................108 Environmental Effects of Mercury ........................................................110 How mercury contaminates the environment....................................110 Protect your environment..................................................................111 Basic knowledge for miners..............................................................112 Health Consequences of Mercury Exposure..........................................115 Mercury in the environment..............................................................115 Human exposure to mercury.............................................................116 Uptake and elimination of mercury ..................................................118 Medical indicators of mercury exposure...........................................119 Symptoms of mercury vapor exposure .............................................120 Consequences of mercury exposure..................................................121 Treatment of mercury poisoning.......................................................123 Protect yourself and your family.......................................................123 Basic knowledge for miners..............................................................124 General Health Concerns of Artisanal Mining Communities ................126 Malaria..............................................................................................127 Tuberculosis (“TB,” “consumption”)................................................128 HIV/AIDS.........................................................................................128 Malnutrition ......................................................................................129 Conclusion ........................................................................................130 Basic knowledge for miners..............................................................130 Clean Water and Sanitation ...................................................................132 Why clean water and sanitation are important..................................132
GMP - Manual for Training Artisanal and Small-Scale Gold Miners Low cost clean water options. .......................................................... 134 Low-cost sanitation options.............................................................. 135 Basic knowledge for miners ............................................................. 140 The Rising Value of Gold ..................................................................... 142 Basic knowledge for miners ............................................................. 145 Acknowledgement The authors are very thankful for the comments and inputs from Dr. Hermann Wotruba, Univ. Aachen, Germany iii
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Manual for Training Artisanal and Small-Scale Gold Miners

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