A matter of approach: the retort's potential to reduce mercury consumption within small-scale gold mining settlements in Tanzania

• Published in: Journal of cleaner production Vol. 17; no. 1; pp. 77 - 86
• Main Authors: Jønsson, Jesper Bosse, Appel, Peter W.U., Chibunda, Raphael Tihelwa
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 2009
• Subjects: Mercury; Retort; Small-scale mining; Tanzania; Tanzania; Retort; Small-scale mining; Mercury; Tanzania
• ISSN: 0959-6526; 1879-1786
• DOI: 10.1016/j.jclepro.2008.04.002

The mercury-based gold extraction processes prevalent within small-scale mining are both efficient and harmful. While ensuring relatively high levels of gold recovery, they cause environmental and health problems for people living within mining settlements. This mercury consumption can be minimized by using a simple mercury recycling device known as a retort. While mining legislation in Tanzania dictates the use of retorts for gold recovery, virtually no miners use them, indicating the inadequacy of previous introduction attempts. During action research, retorts were introduced in two mining settlements through a thorough and participatory approach. Twenty miners were given retorts and their attitudes and receptiveness to them were studied. Of the recipients, 18 used the retorts over a period of five months, recycling 10 kilos of mercury. Less mercury was spilled into the environment and miners saved money normally spent on purchasing mercury. The findings have implications for the strategies of development interventions targeting mercury-instigated problems within small-scale gold mining.