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This is a Experimental Study study.

October 17, 2025MiningOpen Access

From Agro-Industrial Waste to Gold Lixiviant: Evaluating Cassava Wastewater Applications in Artisanal Mining

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This study demonstrates that cassava wastewater can improve gold recovery in artisanal mining, suggesting alternatives to mercury amalgamation.

The study achieved a mean gold recovery of 76.75% using cassava wastewater in a two-cycle leaching process.
The performance of cassava wastewater outperformed the mine's amalgamation process, which had a recovery rate of 44.7%.
Longer leaching cycles resulted in lower gold recoveries, indicating potential challenges in the extraction process.
Developing efficient systems for manipulating cassava wastewater could create standardized, eco-friendly reagents for gold mining.

Silva et al. (2025) studied this question.

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This study demonstrates that cassava wastewater can improve gold recovery in artisanal mining, suggesting alternatives to mercury amalgamation.