Evaluation of acid mine drainage characterization for predicting post drainage water quality in coal mines

Sendy Dwiki, Hideki Shimada, Rudy Sayoga Gautama, Ginting Jalu Kusuma, Takashi Sasaoka, Fatimah Koten, Shinji Matsumoto

Research output: Contribution to journalArticle

Abstract

In the surface coal mine, coal is extracted by removing topsoil and overburden above the coal seam layer. The thickness of the coal seam is various, depending on the geological formation of coal sedimentation. In most cases, more than several meters of the seams could exist on the sedimentation of coal. Therefore, during the extraction of coal, the reduction of surface level is unavoidable. As the consequences, a vast hole in the surface, usually called as a void, is formed and develops into a water body to the surrounding environment. Acid mine drainage (AMD) is extremely dangerous because of its low pH (usually below 5) and high concentration of heavy metals, sulfate and salinity. When the disturbed surfaces, such as pit walls and front mining, are exposed to the air and leached by water, AMD will occur due to the abundant availability of sulfide minerals. Accumulation of acidic water in the void could happen. Thus, the study about the assessment of water quality post-mining drainage along with the impact of surface change to the ecosystem, is prominent to be conducted. This paper evaluates AMD characterization of rock samples by using static test, consists of paste pH, Acid Base Accounting (ABA) method of balancing the value of acid capacity from Total Sulfur test and neutralization capacity from Acid Neutralizing Capacity (ANC) test and Net Acid Generating (NAG) test for predicting the water quality of post drainage in the void. XRD analysis was also conducted to discuss mineralogy of the samples. Kinetic test was carried out to assess the final acidity production of rock samples. Validation of the predicted result was performed by simulating the leachate water mixing from the result of kinetic test in the PHREEQC Interactive software.

Original languageEnglish
Pages (from-to)23-28
Number of pages6
JournalInzynieria Mineralna
Volume2015
Issue number2
Publication statusPublished - Jan 1 2015

Fingerprint

acid mine drainage
drainage water
Coal mines
Coal
coal mine
Drainage
Water quality
water quality
Acids
void
coal
acid
Water
coal seam
Sedimentation
sedimentation
drainage
Rocks
kinetics
Sulfide minerals

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology
  • Geochemistry and Petrology

Cite this

Evaluation of acid mine drainage characterization for predicting post drainage water quality in coal mines. / Dwiki, Sendy; Shimada, Hideki; Gautama, Rudy Sayoga; Kusuma, Ginting Jalu; Sasaoka, Takashi; Koten, Fatimah; Matsumoto, Shinji.

In: Inzynieria Mineralna, Vol. 2015, No. 2, 01.01.2015, p. 23-28.

Research output: Contribution to journalArticle

Dwiki, Sendy ; Shimada, Hideki ; Gautama, Rudy Sayoga ; Kusuma, Ginting Jalu ; Sasaoka, Takashi ; Koten, Fatimah ; Matsumoto, Shinji. / Evaluation of acid mine drainage characterization for predicting post drainage water quality in coal mines. In: Inzynieria Mineralna. 2015 ; Vol. 2015, No. 2. pp. 23-28.
@article{25c1d3c36fba4bb99abbf4a0a85db1d1,
title = "Evaluation of acid mine drainage characterization for predicting post drainage water quality in coal mines",
abstract = "In the surface coal mine, coal is extracted by removing topsoil and overburden above the coal seam layer. The thickness of the coal seam is various, depending on the geological formation of coal sedimentation. In most cases, more than several meters of the seams could exist on the sedimentation of coal. Therefore, during the extraction of coal, the reduction of surface level is unavoidable. As the consequences, a vast hole in the surface, usually called as a void, is formed and develops into a water body to the surrounding environment. Acid mine drainage (AMD) is extremely dangerous because of its low pH (usually below 5) and high concentration of heavy metals, sulfate and salinity. When the disturbed surfaces, such as pit walls and front mining, are exposed to the air and leached by water, AMD will occur due to the abundant availability of sulfide minerals. Accumulation of acidic water in the void could happen. Thus, the study about the assessment of water quality post-mining drainage along with the impact of surface change to the ecosystem, is prominent to be conducted. This paper evaluates AMD characterization of rock samples by using static test, consists of paste pH, Acid Base Accounting (ABA) method of balancing the value of acid capacity from Total Sulfur test and neutralization capacity from Acid Neutralizing Capacity (ANC) test and Net Acid Generating (NAG) test for predicting the water quality of post drainage in the void. XRD analysis was also conducted to discuss mineralogy of the samples. Kinetic test was carried out to assess the final acidity production of rock samples. Validation of the predicted result was performed by simulating the leachate water mixing from the result of kinetic test in the PHREEQC Interactive software.",
author = "Sendy Dwiki and Hideki Shimada and Gautama, {Rudy Sayoga} and Kusuma, {Ginting Jalu} and Takashi Sasaoka and Fatimah Koten and Shinji Matsumoto",
year = "2015",
month = "1",
day = "1",
language = "English",
volume = "2015",
pages = "23--28",
journal = "Inzynieria Mineralna",
issn = "1640-4920",
publisher = "Polish Mineral Engineering Society",
number = "2",

}

TY - JOUR

T1 - Evaluation of acid mine drainage characterization for predicting post drainage water quality in coal mines

AU - Dwiki, Sendy

AU - Shimada, Hideki

AU - Gautama, Rudy Sayoga

AU - Kusuma, Ginting Jalu

AU - Sasaoka, Takashi

AU - Koten, Fatimah

AU - Matsumoto, Shinji

PY - 2015/1/1

Y1 - 2015/1/1

N2 - In the surface coal mine, coal is extracted by removing topsoil and overburden above the coal seam layer. The thickness of the coal seam is various, depending on the geological formation of coal sedimentation. In most cases, more than several meters of the seams could exist on the sedimentation of coal. Therefore, during the extraction of coal, the reduction of surface level is unavoidable. As the consequences, a vast hole in the surface, usually called as a void, is formed and develops into a water body to the surrounding environment. Acid mine drainage (AMD) is extremely dangerous because of its low pH (usually below 5) and high concentration of heavy metals, sulfate and salinity. When the disturbed surfaces, such as pit walls and front mining, are exposed to the air and leached by water, AMD will occur due to the abundant availability of sulfide minerals. Accumulation of acidic water in the void could happen. Thus, the study about the assessment of water quality post-mining drainage along with the impact of surface change to the ecosystem, is prominent to be conducted. This paper evaluates AMD characterization of rock samples by using static test, consists of paste pH, Acid Base Accounting (ABA) method of balancing the value of acid capacity from Total Sulfur test and neutralization capacity from Acid Neutralizing Capacity (ANC) test and Net Acid Generating (NAG) test for predicting the water quality of post drainage in the void. XRD analysis was also conducted to discuss mineralogy of the samples. Kinetic test was carried out to assess the final acidity production of rock samples. Validation of the predicted result was performed by simulating the leachate water mixing from the result of kinetic test in the PHREEQC Interactive software.

AB - In the surface coal mine, coal is extracted by removing topsoil and overburden above the coal seam layer. The thickness of the coal seam is various, depending on the geological formation of coal sedimentation. In most cases, more than several meters of the seams could exist on the sedimentation of coal. Therefore, during the extraction of coal, the reduction of surface level is unavoidable. As the consequences, a vast hole in the surface, usually called as a void, is formed and develops into a water body to the surrounding environment. Acid mine drainage (AMD) is extremely dangerous because of its low pH (usually below 5) and high concentration of heavy metals, sulfate and salinity. When the disturbed surfaces, such as pit walls and front mining, are exposed to the air and leached by water, AMD will occur due to the abundant availability of sulfide minerals. Accumulation of acidic water in the void could happen. Thus, the study about the assessment of water quality post-mining drainage along with the impact of surface change to the ecosystem, is prominent to be conducted. This paper evaluates AMD characterization of rock samples by using static test, consists of paste pH, Acid Base Accounting (ABA) method of balancing the value of acid capacity from Total Sulfur test and neutralization capacity from Acid Neutralizing Capacity (ANC) test and Net Acid Generating (NAG) test for predicting the water quality of post drainage in the void. XRD analysis was also conducted to discuss mineralogy of the samples. Kinetic test was carried out to assess the final acidity production of rock samples. Validation of the predicted result was performed by simulating the leachate water mixing from the result of kinetic test in the PHREEQC Interactive software.

UR - http://www.scopus.com/inward/record.url?scp=85026670822&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85026670822&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:85026670822

VL - 2015

SP - 23

EP - 28

JO - Inzynieria Mineralna

JF - Inzynieria Mineralna

SN - 1640-4920

IS - 2

ER -