Abstract
Gold mining wastewater contains heavy metals hazardous to the environment. The alternative solution to overcome the contamination problems was using adsorbent to reduce the amount of heavy metal content in the wastewater. Palm oil fuel ash [POFA] as a potential adsorbent to absorb the heavy metal content. This current study focused on the application of palm oil fuel ash [POFA] for the removal of heavy metal in the environment. The technology used in this study was the combination of adsorption and precipitation methods. Gold mining wastewater and supernatant were analyzed using Inductively Coupled Plasma [ICP] mass spectrometers. The result of this study showed that the level of heavy metals in the gold mining wastewater was successfully reduced at large amounts and that the POFA had a good adsorption capability.
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