Identifikasi Batuan PAF, NAF dan UNCERTAIN dengan Menggunakan Metode NTAPP Pada Area PT. Trubaindo Coal Mining, Melak-Kalimantan Timur
Date
2020-01Author
Irviansyah, Alfian
Sitorus, Saibun
Panggabean, Aman Sentosa
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ABSTRACT : The research about identification of PAF, NAF and uncertain rock using NTAPP method in the PT. Trubaindo
Coal Mining has been done. This research was conducted as an effort to control the potential for the formation of
acid mine drainage, with identifying the types of mine rocks using certain testing methods. Some important
parameters such as Total Sulfur Level, Slurry pH, Total Actual Acidity (TAA), Chromium Reducible Sulfur (CRS)
and Acid Neutralizing Capacity (ANC) using the NTAPP method on mine rocks have been determined to identify
mining rock category categories. Based on the results of tests on 101 samples, 63 samples were identified included
in the category of rocks that are not NAF (Slurry pH value = 4.1 - 8.9; Total Sulfur = 0.01-0.60 %; CRS = 0.01-
0.10 % and NTAPP = 0.030-0.959 %), 38 samples were classified as PAF (pH Slurry = 2.9-7.9; Total Sulfur =
0.01-5.10 %; CRS = 0.11-2.04 % and NTAPP = 0.053-4.571 %), and no sample was included in the uncertainty
category. The NTAPP testing method can facilitate the geology team to enter data in rock modeling software to
control the potential for acid mine drainage formation through PAF and NAF by rock pile management in the
former mine disposal area of PT.Trubaindo Coal Mining.