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Published:
Apr 30, 2025Keywords:
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Tanzania Journal of Engineering and Technology (Tanz. J. Engrg. Technol.) publications are written as a basis for academic discussions. Whereas effort is made by the Editorial Board to screen out inaccurate or misleading statements, data or opinions, Tanz. J. Engrg. Technol. wishes to make it clear that the contents of the articles are the sole responsibility of the authors. Accordingly, the Editorial Board and editors, publisher, College of Engineering and Technology and the University of Dar es Salaam accept no responsibility or liability whatsoever for the opinions, inaccurate or misleading data or statement and views expressed by the authors.
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Main Article Content
A Fuzzy Based Framework for Sustainable Technology Selection in Small-Scale Gold Mining Operations
Abstract
Small-scale gold mining (SSGM) operations in Tanzania has been operating inefficiently due to inadequate mining processing
technologies, poor working tools, lack of enough capital, and insufficient electricity. Despite the efforts made by different
stakeholders in boosting the sustainability of SSGM yet the sector has not reached the expected goal. This paper proposes a framework for appropriate technology selection to help small scale gold miners in evaluating various gold mineral processing technologies. The framework utilizes the fuzzy logic set theory for technology evaluation and selection. The developed framework for technology selection upon validation provided results that technology adequacy of more than 60% and the economic value of above 80% has low environment effect of about 16%. Similarly, obsolete technology of 45 years has a disposal effect of 5% on the environment. The study concluded that semimechanised crushing and grinding, gold concentration shaking table, square-set timber and stull stopping mining technologies for the shaft underground mining and cyanide chemical leaching are sustainable technologies in SSGM operation in Tanzania. The study recommended the adoption of technology selection framework developed and
practised prior mining project commencement for sustainable SSGM in Tanzania.
