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1 Journal of Ecological Engineering

1 2023

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The Forming of Acid Mine Drainage Based on Characteristics of Coal Mining, East Kalimantan, Indonesia

Widayati Amy Sri, Dani Umar, Nu'man Harits, Muslim Dicky, Nasruddin Dudi, Nuryahya Himawan, Nurhasan Rully, Agustin Daryl Sarah

Journal of Ecological Engineering

2023

Vol. 24, nr 7

301--310

As one of the world’s coal producers, Indonesia continues to increase its coal production. The purpose of this study is to identify and analyze the characteristics of coal that has the potential to produce acid mine drainage. The research method is coal mapping and zoning based on formation, observation, and description of coal characteristics, coal sampling, ultimate and proximate testing, and analysis. The results of the study describe the characteristics of coal related to distribution in the early stages of evaluating the potential for acid mine formation, besides that it can be used as a basis for classifying the potential for acid mine drainage which has a high enough total sulfur based on the results of testing on 15 samples. To prevent the reaction to acid mine drainage, it can be based on the geochemical characteristics of coal by constructing a mine reservoir or making water drainage in a mine that is not close to the stockpile, because there is a possibility that water has the potential to form acid mine drainage (AMD) when it comes in contact with coal potential. So that coal does not have the potential to be a source of acid mine drainage.