Acid mine drainage (AMD) is a toxic environmental issue that silently carries heavy metals such as Fe and Mn, along with turbidity levels far exceeding safe limits. However, an unexpected and clever solution has emerged from kitchen waste: pineapple peels and papaya seeds. This innovation, initiated by Ismi Khairunnissa Ariani, B.Sc., M.Sc., proves that serious pollution problems can be tackled using the simplest of materials.

Environmental Crisis from "Rusty Water"

In Indonesia, acid mine drainage poses a severe pollution threat. AMD forms when pyrite (FeS₂) and other sulfide minerals are exposed to air, producing acidic water with high metal concentrations. Left untreated, this “rusty water” flows into rivers, damages ecosystems, contaminates clean water sources, and endangers public health. The problem is worsened by thousands of abandoned mine pits. According to JATAM data, there are approximately ±3,033 abandoned mine pits across Indonesia that potentially contribute to environmental contamination. Although regulations require water treatment to meet quality standards, conventional chemical methods remain costly.

Bio-Coagulants: An Affordable and Eco-Friendly Solution

Here lies the turning point of the innovation: the use of fruit waste as a natural bio-coagulant. According to research by Ismi Khairunnissa Ariani, B.Sc., M.Sc., pineapple peels (abundant in Kutai Kartanegara) and papaya seeds contain natural compounds capable of binding heavy metals effectively. Through a simple extraction process, these bio-coagulants can significantly reduce pollutants in water. 

The benefits are remarkable:

1. environmentally friendly as they come from natural waste 
2. cost-effective compared to chemical coagulants
3. biodegradable. 

The use of pineapple peels and papaya seeds demonstrates that addressing acid mine drainage does not have to be expensive or complex; smart solutions can arise from simple ideas.

Protecting Water for the Future

Acid mine drainage remains a real threat to both the environment and society. Through her innovative natural bio-coagulant research, Ismi Khairunnissa Ariani, B.Sc., M.Sc. offers a smart, efficient, and sustainable pathway forward. It is time for us to support this eco-friendly innovation to protect our water resources for future generations.